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072e2c8101
shrub/pkg/arvo/sys/vane/clay.hoon
Joe Bryan 072e2c8101 Merge branch 'm/vane-unversion' into m/modern-hoon 
* m/vane-unversion:
  ames: remove old state versions & conversions
  gall: rename fading styles
  vanes: remove old load types and logic
  gall: refresh clay subscription on fade
  gall: add nonce to agent wires
  gall: add %doze-style fade
  gall: fade initial commit
2020-11-30 21:04:16 -08:00

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:: clay (4c), revision control
!:
:: This is split in three top-level sections: structure definitions, main
:: logic, and arvo interface.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: Here are the structures. `++raft` is the formal arvo state. It's also
:: worth noting that many of the clay-related structures are defined in zuse.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
|= pit=vase
=, clay
=> |%
+$ aeon @ud :: version number
::
:: Recursive structure of a desk's data.
::
:: We keep an ankh only for the current version of local desks. Everywhere
:: else we store it as (map path lobe).
::
+$ ankh :: expanded node
$~ [~ ~]
$: fil=(unit [p=lobe q=cage]) :: file
dir=(map @ta ankh) :: folders
== ::
::
:: Part of ++mery, representing the set of changes between the mergebase and
:: one of the desks being merged.
::
:: -- `new` is the set of files in the new desk and not in the mergebase.
:: -- `cal` is the set of changes in the new desk from the mergebase except
:: for any that are also in the other new desk.
:: -- `can` is the set of changes in the new desk from the mergebase and that
:: are also in the other new desk (potential conflicts).
:: -- `old` is the set of files in the mergebase and not in the new desk.
::
+$ cane
$: new=(map path lobe)
cal=(map path lobe)
can=(map path cage)
old=(map path ~)
==
::
:: Type of request.
::
:: %d produces a set of desks, %p gets file permissions, %t gets all paths
:: with the specified prefix, %u checks for existence, %v produces a ++dome
:: of all desk data, %w gets @ud and @da variants for the given case, %x
:: gets file contents, %y gets a directory listing, and %z gets a recursive
:: hash of the file contents and children.
::
:: ++ care ?(%d %p %t %u %v %w %x %y %z)
::
:: Keeps track of subscribers.
::
:: A map of requests to a set of all the subscribers who should be notified
:: when the request is filled/updated.
::
+$ cult (jug wove duct)
::
:: Domestic desk state.
::
:: Includes subscriber list, dome (desk content), possible commit state (for
:: local changes), possible merge state (for incoming merges), and permissions.
::
+$ dojo
$: qyx=cult :: subscribers
dom=dome :: desk state
per=regs :: read perms per path
pew=regs :: write perms per path
==
::
:: Desk state.
::
:: Includes a checked-out ankh with current content, most recent version, map
:: of all version numbers to commit hashes (commits are in hut.rang), and map
:: of labels to version numbers.
::
:: `mim` is a cache of the content in the directories that are mounted
:: to unix. Often, we convert to/from mime without anything really
:: having changed; this lets us short-circuit that in some cases.
:: Whenever you give an `%ergo`, you must update this.
::
+$ dome
$: ank=ankh :: state
let=aeon :: top id
hit=(map aeon tako) :: versions by id
lab=(map @tas aeon) :: labels
mim=(map path mime) :: mime cache
fod=ford-cache :: ford cache
fer=(unit reef-cache) :: reef cache
== ::
::
:: Commit state.
::
:: -- `del` is the paths we're deleting.
:: -- `ink` is the insertions of hoon files (short-circuited for
:: bootstrapping).
:: -- `ins` is all the other insertions.
:: -- `dif` is the diffs in `dig` applied to their files.
:: -- `mut` is the diffs between `muc` and the original files.
::
+$ dork :: diff work
$: del=(list path) :: deletes
ink=(list (pair path cage)) :: hoon inserts
ins=(list (pair path cage)) :: inserts
dif=(list (trel path lobe cage)) :: changes
mut=(list (trel path lobe cage)) :: mutations
== ::
::
:: Over-the-wire backfill request
::
+$ fill
$% [%0 =desk =lobe]
==
::
:: Ford cache
::
+$ ford-cache
$: vases=(map path [res=vase dez=(set path)])
marks=(map mark [res=dais dez=(set path)])
casts=(map mars [res=tube dez=(set path)])
==
:: $reef-cache: built system files
::
+$ reef-cache
$: hoon=vase
arvo=vase
zuse=vase
==
::
:: Hash of a blob, for lookup in the object store (lat.ran)
::
+$ lobe @uvI :: blob ref
::
:: New desk data.
::
:: Sent to other ships to update them about a particular desk. Includes a map
:: of all new aeons to hashes of their commits, the most recent aeon, and sets
:: of all new commits and data.
::
+$ nako :: subscription state
$: gar=(map aeon tako) :: new ids
let=aeon :: next id
lar=(set yaki) :: new commits
bar=(set plop) :: new content
== ::
::
:: Formal vane state.
::
:: -- `rom` is our domestic state.
:: -- `hoy` is a collection of foreign ships where we know something about
:: their clay.
:: -- `ran` is the object store.
:: -- `mon` is a collection of mount points (mount point name to urbit
:: location).
:: -- `hez` is the unix duct that %ergo's should be sent to.
:: -- `cez` is a collection of named permission groups.
:: -- `pud` is an update that's waiting on a kernel upgrade
::
+$ raft :: filesystem
$: rom=room :: domestic
hoy=(map ship rung) :: foreign
ran=rang :: hashes
mon=(map term beam) :: mount points
hez=(unit duct) :: sync duct
cez=(map @ta crew) :: permission groups
pud=(unit [=desk =yoki]) :: pending update
== ::
::
:: Object store.
::
:: Maps of commit hashes to commits and content hashes to content.
::
+$ rang ::
$: hut=(map tako yaki) ::
lat=(map lobe blob) ::
== ::
::
:: Unvalidated response to a request.
::
:: Like a +$rant, but with a page of data rather than a cage of it.
::
+$ rand :: unvalidated rant
$: p=[p=care q=case r=@tas] :: clade release book
q=path :: spur
r=page :: data
== ::
::
:: Generic desk state.
::
:: -- `lim` is the most recent date we're confident we have all the
:: information for. For local desks, this is always `now`. For foreign
:: desks, this is the last time we got a full update from the foreign
:: urbit.
:: -- `ref` is a possible request manager. For local desks, this is null.
:: For foreign desks, this keeps track of all pending foreign requests
:: plus a cache of the responses to previous requests.
:: -- `qyx` is the set of subscriptions, with listening ducts. These
:: subscriptions exist only until they've been filled.
:: -- `dom` is the actual state of the filetree. Since this is used almost
:: exclusively in `++ze`, we describe it there.
::
+$ rede :: universal project
$: lim=@da :: complete to
ref=(unit rind) :: outgoing requests
qyx=cult :: subscribers
dom=dome :: revision state
per=regs :: read perms per path
pew=regs :: write perms per path
== ::
::
:: Foreign request manager.
::
:: When we send a request to a foreign ship, we keep track of it in here. This
:: includes a request counter, a map of request numbers to requests, a reverse
:: map of requesters to request numbers, a simple cache of common %sing
:: requests, and a possible nako if we've received data from the other ship and
:: are in the process of validating it.
::
+$ rind :: request manager
$: nix=@ud :: request index
bom=(map @ud update-state) :: outstanding
fod=(map duct @ud) :: current requests
haw=(map mood (unit cage)) :: simple cache
== ::
::
:: Active downloads
::
+$ update-state
$: =duct
=rave
have=(map lobe blob)
need=(list lobe)
nako=(qeu (unit nako))
busy=_|
==
::
:: Result of a subscription
::
+$ sub-result
$% [%blab =mood data=(each cage lobe)]
[%bleb ver=@ud ins=@ud range=(unit (pair aeon aeon))]
[%balk cage=(unit (each cage lobe)) =mood]
[%blas moods=(set mood)]
[%blub ~]
==
::
:: Domestic ship.
::
:: `hun` is the duct to dill, and `dos` is a collection of our desks.
::
+$ room :: fs per ship
$: hun=duct :: terminal duct
dos=(map desk dojo) :: native desk
== ::
::
:: Stored request.
::
:: Like a +$rave but with caches of current versions for %next and %many.
:: Generally used when we store a request in our state somewhere.
::
+$ cach (unit (unit (each cage lobe))) :: cached result
+$ wove [for=(unit [=ship ver=@ud]) =rove] :: stored source + req
+$ rove :: stored request
$% [%sing =mood] :: single request
[%next =mood aeon=(unit aeon) =cach] :: next version of one
$: %mult :: next version of any
=mool :: original request
aeon=(unit aeon) :: checking for change
old-cach=(map [=care =path] cach) :: old version
new-cach=(map [=care =path] cach) :: new version
== ::
[%many track=? =moat lobes=(map path lobe)] :: change range
== ::
::
:: Foreign desk data.
::
+$ rung
$: rus=(map desk rede) :: neighbor desks
==
::
+$ move [p=duct q=(wind note gift:able)] :: local move
+$ note :: out request $->
$~ [%b %wait *@da] ::
$% $: %a :: to %ames
$>(%plea task:able:ames) ::
== ::
$: %b :: to %behn
$> $? %drip ::
%rest ::
%wait ::
== ::
task:able:behn ::
== ::
$: %c :: to %clay
$> $? %info :: internal edit
%merg :: merge desks
%pork ::
%warp ::
%werp ::
== ::
task:able ::
== ::
$: %d :: to %dill
$>(%flog task:able:dill) ::
== ::
$: %g :: to %gall
$>(%deal task:able:gall) ::
== ::
$: %j :: by %jael
$>(%public-keys task:able:jael) ::
== == ::
+$ riot (unit rant) :: response+complete
+$ sign :: in result $<-
$~ [%b %wake ~] ::
$% $: %a :: by %ames
$> $? %boon :: response
%done :: (n)ack
%lost :: lost boon
== ::
gift:able:ames ::
== ::
$: %b :: by %behn
$% $>(%wake gift:able:behn) :: timer activate
$>(%writ gift:able) :: XX %slip
== == ::
$: %c :: by %clay
$> $? %mere ::
%note ::
%writ ::
== ::
gift:able ::
== ::
$: %j :: by %jael
$>(%public-keys gift:able:jael) ::
== ::
$: @tas :: by any
$>(%crud vane-task) :: XX strange
== == ::
-- =>
~% %clay-utilities ..is ~
:: %utilities
::
|%
:: +sort-by-head: sorts alphabetically using the head of each element
::
++ sort-by-head
|=([a=(pair path *) b=(pair path *)] (aor p.a p.b))
::
:: By convention: paf == (weld pax pat)
::
++ mode-to-commit
|= [hat=(map path lobe) pax=path all=? mod=mode]
^- [deletes=(set path) changes=(map path cage)]
=/ deletes
%- silt
%+ turn
^- (list path)
%+ weld
^- (list path)
%+ murn mod
|= [pat=path mim=(unit mime)]
^- (unit path)
?^ mim
~
`pat
^- (list path)
?. all
~
=+ mad=(malt mod)
=+ len=(lent pax)
=/ descendants=(list path)
%+ turn
%+ skim ~(tap by hat)
|= [paf=path lob=lobe]
=(pax (scag len paf))
|= [paf=path lob=lobe]
(slag len paf)
%+ skim
descendants
|= pat=path
(~(has by mad) pat)
|= pat=path
(weld pax pat)
::
=/ changes
%- malt
%+ murn mod
|= [pat=path mim=(unit mime)]
^- (unit [path cage])
?~ mim
~
`[(weld pax pat) %mime !>(u.mim)]
::
[deletes changes]
-- =>
~% %clay + ~
|%
:: Printable form of a wove; useful for debugging
::
++ print-wove
|= =wove
:- for.wove
?- -.rove.wove
%sing [%sing mood.rove.wove]
%next [%next [mood aeon]:rove.wove]
%mult [%mult [mool aeon]:rove.wove]
%many [%many [track moat]:rove.wove]
==
::
:: Printable form of a cult; useful for debugging
::
++ print-cult
|= =cult
%+ turn ~(tap by cult)
|= [=wove ducts=(set duct)]
[ducts (print-wove wove)]
::
++ fusion
=>
|%
:: +an: $ankh interface door
::
++ an
|_ nak=ankh
:: +get: produce file at path
::
++ get
|= =path
^- (unit cage)
?~ path
?~ fil.nak
~
`q.u.fil.nak
?~ kid=(~(get by dir.nak) i.path)
~
$(nak u.kid, path t.path)
--
++ with-face |=([face=@tas =vase] vase(p [%face face p.vase]))
++ with-faces
=| res=(unit vase)
|= vaz=(list [face=@tas =vase])
^- vase
?~ vaz (need res)
=/ faz (with-face i.vaz)
=. res `?~(res faz (slop faz u.res))
$(vaz t.vaz)
--
|%
:: +wrap: external wrapper
::
++ wrap
|* [* state:ford]
[+<- +<+>-] :: cache.state
::
++ ford
!.
=> |%
+$ build
$% [%file =path]
[%mark =mark]
[%cast =mars]
[%vale =path]
==
+$ state
$: baked=(map path cage)
cache=ford-cache
stack=(list (set path))
cycle=(set build)
==
+$ args
$: bud=vase
=ankh
deletes=(set path)
changes=(map path (each page lobe))
file-store=(map lobe blob)
=ford-cache
==
--
|= args
:: nub: internal mutable state for this computation
::
=| nub=state
=. cache.nub ford-cache
|%
:: +pop-stack: pop build stack, copying deps downward
::
++ pop-stack
^- [(set path) _stack.nub]
=^ top=(set path) stack.nub stack.nub
=? stack.nub ?=(^ stack.nub)
stack.nub(i (~(uni in i.stack.nub) top))
[top stack.nub]
::
++ get-value
|= =path
^- [cage state]
~| %error-validating^path
?^ got=(~(get by baked.nub) path)
[u.got nub]
=; [res=cage bun=state]
=. nub bun
=. baked.nub (~(put by baked.nub) path res)
[res nub]
?: (~(has in cycle.nub) vale+path)
~|(cycle+vale+path^stack.nub !!)
=. cycle.nub (~(put in cycle.nub) vale+path)
?^ change=(~(get by changes) path)
=^ page nub
?: ?=(%& -.u.change)
[p.u.change nub]
~| %ugly-lobe^p.u.change^path
(lobe-to-page p.u.change)
=^ cage nub (validate-page path page)
[cage nub]
?< (~(has in deletes) path)
~| %file-not-found^path
:_(nub (need (~(get an ankh) path)))
:: +get-mark: build a mark definition
::
++ get-mark
|= mak=mark
^- [dais state]
~| %error-building-mark^mak
?^ got=(~(get by marks.cache.nub) mak)
=? stack.nub ?=(^ stack.nub)
stack.nub(i (~(uni in i.stack.nub) dez.u.got))
[res.u.got nub]
?: (~(has in cycle.nub) mark+mak)
~|(cycle+mark+mak^stack.nub !!)
=. cycle.nub (~(put in cycle.nub) mark+mak)
=. stack.nub [~ stack.nub]
=; res=[=dais nub=state]
=. nub nub.res
=^ top stack.nub pop-stack
=. marks.cache.nub (~(put by marks.cache.nub) mak [dais.res top])
[dais.res nub]
=^ cor=vase nub (build-fit %mar mak)
=/ gad=vase (slap cor %limb %grad)
?@ q.gad
=+ !<(mok=mark gad)
=^ deg=dais nub $(mak mok)
=^ tub=tube nub (get-cast mak mok)
=^ but=tube nub (get-cast mok mak)
:_ nub
^- dais
|_ sam=vase
++ bunt (slap cor $+6)
++ diff
|= new=vase
^- vase
(~(diff deg (tub sam)) (tub new))
++ form form:deg
++ join join:deg
++ mash mash:deg
++ pact
|= diff=vase
^+ sam
(but (~(pact deg (tub sam)) diff))
++ vale
|= =noun
^+ sam
(slam (slap cor !,(*hoon noun:grab)) !>(noun))
++ volt
|= =noun
^+ sam
[p:bunt noun]
--
:_ nub
=+ !<(fom=mark (slap gad %limb %form))
^- dais
|_ sam=vase
++ bunt (slap cor $+6)
++ diff
|= new=vase
^- vase
%+ slap
(with-faces cor+cor sam+sam new+new ~)
!, *hoon
(diff:~(grad cor sam) new)
++ form fom
++ join
|= [a=vase b=vase]
^- (unit (unit vase))
?: =(q.a q.b)
~
=; res `?~(q.res ~ `(slap res !,(*hoon ?~(. !! u))))
(slam (slap cor !,(*hoon join:grad)) (slop a b))
++ mash
|= [a=[=ship =desk diff=vase] b=[=ship =desk diff=vase]]
^- (unit vase)
?: =(q.diff.a q.diff.b)
~
:- ~
%+ slam (slap cor !,(*hoon mash:grad))
%+ slop
:(slop !>(ship.a) !>(desk.a) diff.a)
:(slop !>(ship.b) !>(desk.b) diff.b)
++ pact
|= diff=vase
^+ sam
%+ slap
(with-faces cor+cor sam+sam diff+diff ~)
!, *hoon
(pact:~(grad cor sam) diff)
++ vale
|= =noun
^+ sam
(slam (slap cor !,(*hoon noun:grab)) !>(noun))
++ volt
|= =noun
^+ sam
[p:bunt noun]
--
:: +get-cast: produce a $tube mark conversion gate from .a to .b
::
++ get-cast
|= [a=mark b=mark]
^- [tube state]
~| error-building-cast+[a b]
?: =([%mime %hoon] [a b])
:_ nub
|= sam=vase
=+ !<(=mime sam)
!>(q.q.mime)
?^ got=(~(get by casts.cache.nub) [a b])
=? stack.nub ?=(^ stack.nub)
stack.nub(i (~(uni in i.stack.nub) dez.u.got))
[res.u.got nub]
?: (~(has in cycle.nub) cast+[a b])
~|(cycle+cast+[a b]^stack.nub !!)
=. stack.nub [~ stack.nub]
=; res=[=tube nub=state]
=. nub nub.res
=^ top stack.nub pop-stack
=. casts.cache.nub (~(put by casts.cache.nub) [a b] [tube.res top])
[tube.res nub]
:: try +grow; is there a +grow core with a .b arm?
::
=^ old=vase nub (build-fit %mar a)
?: =/ ram (mule |.((slap old !,(*hoon grow))))
?: ?=(%| -.ram) %.n
=/ lab (mule |.((slob b p.p.ram)))
?: ?=(%| -.lab) %.n
p.lab
:: +grow core has .b arm; use that
::
:_ nub
^- tube
|= sam=vase
^- vase
%+ slap
(with-faces old+old sam+sam ~)
:+ %sgzp !,(*hoon old=old)
:+ %sgzp !,(*hoon sam=sam)
:+ %tsgl [%limb b]
!, *hoon
~(grow old sam)
:: try direct +grab
::
=^ new=vase nub (build-fit %mar b)
=/ rab
%- mule |.
%+ slap new
:+ %tsgl [%limb a]
[%limb %grab]
?: &(?=(%& -.rab) ?=(^ q.p.rab))
:_(nub |=(sam=vase ~|([%grab a b] (slam p.rab sam))))
:: try +jump
::
=/ jum
%- mule |.
%+ slap old
:+ %tsgl [%limb b]
[%limb %jump]
?: ?=(%& -.jum)
(compose-casts a !<(mark p.jum) b)
:: try indirect +grab
::
?: ?=(%& -.rab)
(compose-casts a !<(mark p.rab) b)
~|(no-cast-from+[a b] !!)
::
++ compose-casts
|= [x=mark y=mark z=mark]
^- [tube state]
=^ uno=tube nub (get-cast x y)
=^ dos=tube nub (get-cast y z)
:_(nub |=(sam=vase (dos (uno sam))))
::
++ lobe-to-page
|= =lobe
^- [page state]
=/ =blob (~(got by file-store) lobe)
|- ^- [page state]
?- -.blob
%direct [q.blob nub]
%delta
=/ [[=mark =parent=^lobe] diff=page] [q r]:blob
=^ parent-page nub $(blob (~(got by file-store) parent-lobe))
=^ =cage nub (run-pact parent-page diff)
[[p q.q]:cage nub]
==
::
++ validate-page
|= [=path =page]
^- [cage state]
~| validate-page-fail+path^from+p.page
=/ mak=mark (head (flop path))
?: =(mak p.page)
(page-to-cage page)
=^ [mark vax=vase] nub (page-to-cage page)
=^ =tube nub (get-cast p.page mak)
:_(nub [mak (tube vax)])
::
++ page-to-cage
|= =page
^- [cage state]
?: =(%hoon p.page)
:_(nub [%hoon -:!>(*@t) q.page])
?: =(%mime p.page)
:_(nub [%mime !>(;;(mime q.page))])
=^ =dais nub (get-mark p.page)
:_(nub [p.page (vale:dais q.page)])
::
++ cast-path
|= [=path mak=mark]
^- [cage state]
=/ mok (head (flop path))
~| error-casting-path+[path mok mak]
=^ cag=cage nub (get-value path)
?: =(mok mak)
[cag nub]
=^ =tube nub (get-cast mok mak)
~| error-running-cast+[path mok mak]
:_(nub [mak (tube q.cag)])
::
++ run-pact
|= [old=page diff=page]
^- [cage state]
?: ?=(%hoon p.old)
=/ txt=wain (to-wain:format ;;(@t q.old))
=+ ;;(dif=(urge cord) q.diff)
=/ new=@t (of-wain:format (lurk:differ txt dif))
:_(nub [%hoon !>(new)])
=^ dys=dais nub (get-mark p.old)
=^ syd=dais nub (get-mark p.diff)
:_(nub [p.old (~(pact dys (vale:dys q.old)) (vale:syd q.diff))])
::
++ prelude
|= =path
^- vase
=^ cag=cage nub (get-value path)
?> =(%hoon p.cag)
=/ tex=tape (trip !<(@t q.cag))
=/ =pile (parse-pile path tex)
=. hoon.pile !,(*hoon .)
=^ res=vase nub (run-pile pile)
res
::
++ build-file
|= =path
^- [vase state]
~| %error-building^path
?^ got=(~(get by vases.cache.nub) path)
=? stack.nub ?=(^ stack.nub)
stack.nub(i (~(uni in i.stack.nub) dez.u.got))
[res.u.got nub]
?: (~(has in cycle.nub) file+path)
~|(cycle+file+path^stack.nub !!)
=. cycle.nub (~(put in cycle.nub) file+path)
=. stack.nub [(sy path ~) stack.nub]
=^ cag=cage nub (get-value path)
?> =(%hoon p.cag)
=/ tex=tape (trip !<(@t q.cag))
=/ =pile (parse-pile path tex)
=^ res=vase nub (run-pile pile)
=^ top stack.nub pop-stack
=. vases.cache.nub (~(put by vases.cache.nub) path [res top])
[res nub]
::
++ run-pile
|= =pile
=^ sut=vase nub (run-tauts bud %sur sur.pile)
=^ sut=vase nub (run-tauts sut %lib lib.pile)
=^ sut=vase nub (run-raw sut raw.pile)
=^ sut=vase nub (run-bar sut bar.pile)
=/ res=vase (road |.((slap sut hoon.pile)))
[res nub]
::
++ parse-pile
|= [pax=path tex=tape]
^- pile
=/ [=hair res=(unit [=pile =nail])] ((pile-rule pax) [1 1] tex)
?^ res pile.u.res
%- mean %- flop
=/ lyn p.hair
=/ col q.hair
:~ leaf+"syntax error at [{<lyn>} {<col>}] in {<pax>}"
leaf+(trip (snag (dec lyn) (to-wain:format (crip tex))))
leaf+(runt [(dec col) '-'] "^")
==
::
++ pile-rule
|= pax=path
%- full
%+ ifix [gay gay]
%+ cook |=(pile +<)
;~ pfix
:: parse optional /? and ignore
::
;~ pose
(cold ~ ;~(plug fas wut gap dem gap))
(easy ~)
==
::
;~ plug
;~ pose
;~ sfix
%+ cook |=((list (list taut)) (zing +<))
%+ more gap
;~ pfix ;~(plug fas hep gap)
(most ;~(plug com gaw) taut-rule)
==
gap
==
(easy ~)
==
::
;~ pose
;~ sfix
%+ cook |=((list (list taut)) (zing +<))
%+ more gap
;~ pfix ;~(plug fas lus gap)
(most ;~(plug com gaw) taut-rule)
==
gap
==
(easy ~)
==
::
;~ pose
;~ sfix
%+ cook |=((list [face=term =path]) +<)
%+ more gap
;~ pfix ;~(plug fas tis gap)
%+ cook |=([term path] +<)
;~(plug sym ;~(pfix ;~(plug gap fas) (more fas urs:ab)))
==
gap
==
(easy ~)
==
::
;~ pose
;~ sfix
%+ cook |=((list [face=term =mark =path]) +<)
%+ more gap
;~ pfix ;~(plug fas tar gap)
%+ cook |=([term mark path] +<)
;~ plug
sym
;~(pfix ;~(plug gap cen) sym)
;~(pfix ;~(plug gap fas) (more fas urs:ab))
==
==
gap
==
(easy ~)
==
::
%+ cook |=(huz=(list hoon) `hoon`tssg+huz)
(most gap tall:(vang & pax))
==
==
::
++ taut-rule
%+ cook |=(taut +<)
;~ pose
(stag ~ ;~(pfix tar sym))
;~(plug (stag ~ sym) ;~(pfix tis sym))
(cook |=(a=term [`a a]) sym)
==
::
++ run-tauts
|= [sut=vase wer=?(%lib %sur) taz=(list taut)]
^- [vase state]
?~ taz [sut nub]
=^ pin=vase nub (build-fit wer pax.i.taz)
=? p.pin ?=(^ face.i.taz) [%face u.face.i.taz p.pin]
$(sut (slop pin sut), taz t.taz)
::
++ run-raw
|= [sut=vase raw=(list [face=term =path])]
^- [vase state]
?~ raw [sut nub]
=^ pin=vase nub (build-file (snoc path.i.raw %hoon))
=. p.pin [%face face.i.raw p.pin]
$(sut (slop pin sut), raw t.raw)
::
++ run-bar
|= [sut=vase bar=(list [face=term =mark =path])]
^- [vase state]
?~ bar [sut nub]
=^ =cage nub (cast-path [path mark]:i.bar)
=. p.q.cage [%face face.i.bar p.q.cage]
$(sut (slop q.cage sut), bar t.bar)
::
:: +build-fit: build file at path, maybe converting '-'s to '/'s in path
::
++ build-fit
|= [pre=@tas pax=@tas]
^- [vase state]
(build-file (fit-path pre pax))
::
:: +fit-path: find path, maybe converting '-'s to '/'s
::
:: Try '-' before '/', applied left-to-right through the path,
:: e.g. 'a-foo/bar' takes precedence over 'a/foo-bar'.
::
++ fit-path
|= [pre=@tas pax=@tas]
^- path
=/ paz (segments pax)
|- ^- path
?~ paz ~|(no-file+pre^pax !!)
=/ pux=path pre^(snoc i.paz %hoon)
?: (~(has in deletes) pux)
$(paz t.paz)
?: (~(has by changes) pux)
pux
?^ (~(get an ankh) pux)
pux
$(paz t.paz)
--
--
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: section 4cA, filesystem logic
::
:: This core contains the main logic of clay. Besides `++ze`, this directly
:: contains the logic for commiting new revisions (local urbits), managing
:: and notifying subscribers (reactivity), and pulling and validating content
:: (remote urbits).
::
:: The state includes:
::
:: -- local urbit `our`
:: -- current time `now`
:: -- current duct `hen`
:: -- scry handler `ski`
:: -- all vane state `++raft` (rarely used, except for the object store)
:: -- target urbit `her`
:: -- target desk `syd`
::
:: For local desks, `our` == `her` is one of the urbits on our pier. For
:: foreign desks, `her` is the urbit the desk is on and `our` is the local
:: urbit that's managing the relationship with the foreign urbit. Don't mix
:: up those two, or there will be wailing and gnashing of teeth.
::
:: While setting up `++de`, we check if `our` == `her`. If so, we get
:: the desk information from `dos.rom`. Otherwise, we get the rung from
:: `hoy` and get the desk information from `rus` in there. In either case,
:: we normalize the desk information to a `++rede`, which is all the
:: desk-specific data that we utilize in `++de`. Because it's effectively
:: a part of the `++de` state, let's look at what we've got:
::
:: -- `lim` is the most recent date we're confident we have all the
:: information for. For local desks, this is always `now`. For foreign
:: desks, this is the last time we got a full update from the foreign
:: urbit.
:: -- `ref` is a possible request manager. For local desks, this is null.
:: For foreign desks, this keeps track of all pending foreign requests
:: plus a cache of the responses to previous requests.
:: -- `qyx` is the set of subscriptions, with listening ducts. These
:: subscriptions exist only until they've been filled.
:: -- `dom` is the actual state of the filetree. Since this is used almost
:: exclusively in `++ze`, we describe it there.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
++ de :: per desk
|= [our=ship now=@da ski=sley hen=duct raft]
|= [her=ship syd=desk]
:: XX ruf=raft crashes in the compiler
::
=* ruf |4.+6.^$
::
=/ [mow=(list move) hun=(unit duct) rede]
?. =(our her)
:: no duct, foreign +rede or default
::
:+ ?: (~(has by hoy.ruf) her)
~
[hun.rom.ruf %pass /sinks %j %public-keys (silt her ~)]~
~
=/ rus rus:(~(gut by hoy.ruf) her *rung)
%+ ~(gut by rus) syd
[lim=~2000.1.1 ref=`*rind qyx=~ dom=*dome per=~ pew=~]
:: administrative duct, domestic +rede
::
:+ ~ `hun.rom.ruf
=/ jod (~(gut by dos.rom.ruf) syd *dojo)
[lim=now ref=~ [qyx dom per pew]:jod]
::
=* red=rede ->+
|%
++ abet :: resolve
^- [(list move) raft]
:- (flop mow)
?. =(our her)
:: save foreign +rede
::
=/ run (~(gut by hoy.ruf) her *rung)
=/ rug (~(put by rus.run) syd red)
ruf(hoy (~(put by hoy.ruf) her run(rus rug)))
:: save domestic +room
::
%= ruf
hun.rom (need hun)
dos.rom (~(put by dos.rom.ruf) syd [qyx dom per pew]:red)
==
::
:: Handle `%sing` requests
::
++ aver
|= [for=(unit ship) mun=mood]
^- [(unit (unit (each cage lobe))) ford-cache]
=+ ezy=?~(ref ~ (~(get by haw.u.ref) mun))
?^ ezy
:_(fod.dom.red `(bind u.ezy |=(a=cage [%& a])))
?: ?=([%s [%ud *] %late *] mun)
:_ fod.dom.red
^- (unit (unit (each cage lobe)))
:^ ~ ~ %&
^- cage
:- %cass
?~ let.dom
!>([0 *@da])
!>([let.dom t:(~(got by hut.ran) (~(got by hit.dom) let.dom))])
=+ nao=(case-to-aeon case.mun)
?~(nao [~ fod.dom.red] (read-at-aeon:ze for u.nao mun))
::
:: Queue a move.
::
++ emit
|= mof=move
%_(+> mow [mof mow])
::
:: Queue a list of moves
::
++ emil
|= mof=(list move)
%_(+> mow (weld (flop mof) mow))
::
:: Produce either null or a result along a subscription.
::
:: Producing null means subscription has been completed or cancelled.
::
++ balk
|= [hen=duct cay=(unit (each cage lobe)) mun=mood]
^+ +>
?~ cay (blub hen)
(blab hen mun u.cay)
::
:: Set timer.
::
++ bait
|= [hen=duct tym=@da]
(emit hen %pass /tyme/(scot %p her)/[syd] %b %wait tym)
::
:: Cancel timer.
::
++ best
|= [hen=duct tym=@da]
(emit hen %pass /tyme/(scot %p her)/[syd] %b %rest tym)
::
:: Give subscription result.
::
:: Result can be either a direct result (cage) or a lobe of a result. In
:: the latter case we fetch the data at the lobe and produce that.
::
++ blab
|= [hen=duct mun=mood dat=(each cage lobe)]
^+ +>
=^ =cage fod.dom
?: ?=(%& -.dat)
[p.dat fod.dom]
=^ =page fod.dom
%- wrap:fusion
(lobe-to-page:(ford:fusion static-ford-args) p.dat)
=^ =cage fod.dom
%- wrap:fusion
(page-to-cage:(ford:fusion static-ford-args) page)
[cage fod.dom]
=/ gift [%writ ~ [care.mun case.mun syd] path.mun cage]
?: ?=(^ ref)
(emit hen %slip %b %drip !>(gift))
(emit hen %give gift)
::
++ case-to-date
|= =case
^- @da
:: if the case is already a date, use it.
::
?: ?=([%da *] case)
p.case
:: translate other cases to dates
::
=/ aey (case-to-aeon-before lim case)
?~ aey `@da`0
?: =(0 u.aey) `@da`0
t:(aeon-to-yaki:ze u.aey)
::
++ case-to-aeon (cury case-to-aeon-before lim)
::
:: Reduce a case to an aeon (version number)
::
:: We produce null if we can't yet reduce the case for whatever
:: resaon (usually either the time or aeon hasn't happened yet or
:: the label hasn't been created).
::
++ case-to-aeon-before
|= [lim=@da lok=case]
^- (unit aeon)
?- -.lok
%da
?: (gth p.lok lim) ~
|- ^- (unit aeon)
?: =(0 let.dom) [~ 0] :: avoid underflow
?: %+ gte p.lok
=< t
~| [%letdom let=let.dom hit=hit.dom hut=~(key by hut.ran)]
~| [%getdom (~(get by hit.dom) let.dom)]
%- aeon-to-yaki:ze
let.dom
[~ let.dom]
$(let.dom (dec let.dom))
::
%tas (~(get by lab.dom) p.lok)
%ud ?:((gth p.lok let.dom) ~ [~ p.lok])
==
::
++ blas
|= [hen=duct das=(set mood)]
^+ +>
?> ?=(^ das)
:: translate the case to a date
::
=/ cas [%da (case-to-date case.n.das)]
=/ res
(~(run in `(set mood)`das) |=(m=mood [care.m path.m]))
=/ gift [%wris cas res]
?: ?=(^ ref)
(emit hen %slip %b %drip !>(gift))
(emit hen %give gift)
::
:: Give next step in a subscription.
::
++ bleb
|= [hen=duct ver=@ud ins=@ud hip=(unit (pair aeon aeon))]
^+ +>
%^ blab hen [%w [%ud ins] ~]
:- %&
?~ hip
[%null [%atom %n ~] ~]
[%nako !>((make-nako:ze ver u.hip))]
::
:: Tell subscriber that subscription is done.
::
++ blub
|= hen=duct
?: ?=(^ ref)
(emit hen %slip %b %drip !>([%writ ~]))
(emit hen %give %writ ~)
::
:: Lifts a function so that a single result can be fanned out over a set of
:: subscriber ducts.
::
:: Thus, `((duct-lift func) subs arg)` runs `(func sub arg)` for each `sub`
:: in `subs`.
::
++ duct-lift
|* send=_|=([duct *] ..duct-lift)
|= [a=(set duct) arg=_+<+.send] ^+ ..duct-lift
=+ all=~(tap by a)
|- ^+ ..duct-lift
?~ all ..duct-lift
=. +>.send ..duct-lift
$(all t.all, duct-lift (send i.all arg))
::
++ blub-all (duct-lift |=([a=duct ~] (blub a)))
++ blab-all (duct-lift blab)
++ blas-all (duct-lift blas)
++ balk-all (duct-lift balk)
++ bleb-all (duct-lift bleb)
::
++ static-ford-args
[zuse:(need fer.dom) ank.dom ~ ~ lat.ran fod.dom]
::
:: Transfer a request to another ship's clay.
::
++ send-over-ames
|= [=duct =ship index=@ud =riff]
^+ +>
::
=/ =desk p.riff
=/ =wire /warp-index/(scot %p ship)/(scot %tas desk)/(scot %ud index)
=/ =path [%question desk (scot %ud index) ~]
(emit duct %pass wire %a %plea ship %c path `riff-any`[%1 riff])
::
:: Create a request that cannot be filled immediately.
::
:: If it's a local request, we just put in in `qyx`, setting a timer if it's
:: waiting for a particular time. If it's a foreign request, we add it to
:: our request manager (ref, which is a ++rind) and make the request to the
:: foreign ship.
::
++ duce :: produce request
|= wov=wove
^+ +>
=. wov (dedupe wov)
=. qyx (~(put ju qyx) wov hen)
?~ ref
(run-if-future rove.wov |=(@da (bait hen +<)))
|- ^+ +>+.$
=/ =rave (rove-to-rave rove.wov)
=. rave
?. ?=([%sing %v *] rave) rave
[%many %| [%ud let.dom] case.mood.rave path.mood.rave]
=+ inx=nix.u.ref
=. +>+.$
=< ?>(?=(^ ref) .)
(send-over-ames hen her inx syd `rave)
%= +>+.$
nix.u.ref +(nix.u.ref)
bom.u.ref (~(put by bom.u.ref) inx [hen rave ~ ~ ~ |])
fod.u.ref (~(put by fod.u.ref) hen inx)
==
::
:: If a similar request exists, switch to the existing request.
::
:: "Similar" requests are those %next and %many requests which are the same
:: up to starting case, but we're already after the starting case. This
:: stacks later requests for something onto the same request so that they
:: all get filled at once.
::
++ dedupe :: find existing alias
|= wov=wove
^- wove
=; won=(unit wove) (fall won wov)
=* rov rove.wov
?- -.rov
%sing ~
%next
=+ aey=(case-to-aeon case.mood.rov)
?~ aey ~
%- ~(rep in ~(key by qyx))
|= [haw=wove res=(unit wove)]
?^ res res
?. =(for.wov for.haw) ~
=* hav rove.haw
=- ?:(- `haw ~)
?& ?=(%next -.hav)
=(mood.hav mood.rov(case case.mood.hav))
::
:: only a match if this request is before
:: or at our starting case.
=+ hay=(case-to-aeon case.mood.hav)
?~(hay | (lte u.hay u.aey))
==
::
%mult
=+ aey=(case-to-aeon case.mool.rov)
?~ aey ~
%- ~(rep in ~(key by qyx))
|= [haw=wove res=(unit wove)]
?^ res res
?. =(for.wov for.haw) ~
=* hav rove.haw
=- ?:(- `haw ~)
?& ?=(%mult -.hav)
=(mool.hav mool.rov(case case.mool.hav))
::
:: only a match if this request is before
:: or at our starting case, and it has been
:: tested at least that far.
=+ hay=(case-to-aeon case.mool.hav)
?& ?=(^ hay)
(lte u.hay u.aey)
?=(^ aeon.hav)
(gte u.aeon.hav u.aey)
==
==
::
%many
=+ aey=(case-to-aeon from.moat.rov)
?~ aey ~
%- ~(rep in ~(key by qyx))
|= [haw=wove res=(unit wove)]
?^ res res
?. =(for.wov for.haw) ~
=* hav rove.haw
=- ?:(- `haw ~)
?& ?=(%many -.hav)
=(hav rov(from.moat from.moat.hav))
::
:: only a match if this request is before
:: or at our starting case.
=+ hay=(case-to-aeon from.moat.hav)
?~(hay | (lte u.hay u.aey))
==
==
::
:: Porcelain commit
::
++ info
|= [deletes=(set path) changes=(map path cage)]
^+ ..park
?: =(0 let.dom)
?> ?=(~ deletes)
=/ data=(map path (each page lobe))
(~(run by changes) |=(=cage &+[p q.q]:cage))
(park | &+[~ data] *rang)
::
=/ parent-tako=tako (aeon-to-tako:ze let.dom)
=/ data=(map path (each page lobe))
=/ parent-yaki (tako-to-yaki:ze parent-tako)
=/ after-deletes
%- ~(dif by q.parent-yaki)
(malt (turn ~(tap in deletes) |=(=path [path *lobe])))
=/ after=(map path (each page lobe))
(~(run by after-deletes) |=(=lobe |+lobe))
%- ~(uni by after)
^- (map path (each page lobe))
(~(run by changes) |=(=cage &+[p q.q]:cage))
::
=/ =yuki [~[parent-tako] data]
(park | &+yuki *rang)
::
:: Unix commit
::
++ into
|= [pax=path all=? mod=(list [pax=path mim=(unit mime)])]
^+ ..park
:: filter out unchanged, cached %mime values
::
=. mod
%+ skip mod
|= [pax=path mim=(unit mime)]
?~ mim
|
?~ mum=(~(get by mim.dom) pax)
|
:: TODO: check mimetype
::
=(q.u.mim q.u.mum)
=/ =yaki
?: =(0 let.dom)
*yaki
(~(got by hut.ran) (~(got by hit.dom) let.dom))
(info (mode-to-commit q.yaki pax all mod))
::
:: Plumbing commit
::
:: Guaranteed to finish in one event.
::
:: XX needs to check that head is ancestor of tako
:: XX needs to check tako in rang
:: XX needs to check that commit doesn't have same date
::
++ park
=/ check-sane |
|^
|= [updated=? =yoki =rang]
^+ ..park
=: hut.ran (~(uni by hut.rang) hut.ran)
lat.ran (~(uni by lat.rang) lat.ran)
==
=/ new-data=(map path (each page lobe))
?- -.yoki
%& q.p.yoki
%| (~(run by q.p.yoki) |=(=lobe |+lobe))
==
=/ old-yaki
?: =(0 let.dom)
*yaki
(aeon-to-yaki:ze let.dom)
=/ [deletes=(set path) changes=(map path (each page lobe))]
(get-changes q.old-yaki new-data)
~| [from=let.dom deletes=deletes changes=~(key by changes)]
::
:: promote ford cache
:: promote and fill in ankh
:: promote and fill in mime cache
::
=/ sys-changes (need-sys-update changes)
?: ?& =(%home syd)
!updated
|(!=(~ sys-changes) !=(~ (need-vane-update changes)))
==
(sys-update yoki new-data changes)
:: clear caches if zuse reloaded
::
=/ is-zuse-new=? !=(~ sys-changes)
=. fod.dom
?: is-zuse-new
*ford-cache
(promote-ford fod.dom deletes ~(key by changes))
=. fer.dom `(build-reef fer.dom ~(key by changes) new-data)
=? ank.dom is-zuse-new *ankh
=? changes is-zuse-new
(changes-for-upgrade q.old-yaki deletes changes)
::
=/ =args:ford:fusion
[zuse:(need fer.dom) ank.dom deletes changes lat.ran fod.dom]
::
=^ change-cages ford-cache.args
(checkout-changes args changes)
=/ sane-continuation (sane-changes changes change-cages)
=/ new-blobs=(map lobe blob)
%- malt
%+ turn ~(tap by change-cages)
|= [=path =lobe =cage]
[lobe %direct lobe [p q.q]:cage]
=/ data=(map path lobe)
%- ~(urn by new-data)
|= [=path value=(each page lobe)]
?- -.value
%| p.value
%& lobe:(~(got by change-cages) path)
==
:: if we didn't change the data and it's not a merge commit, abort
::
:: very important to keep all permanent changes below this point
::
?: &(=([r.old-yaki ~] p.p.yoki) =(data q.old-yaki))
..park
=/ =yaki
?- -.yoki
%& (make-yaki p.p.yoki data now)
%| ?> =(data q.p.yoki)
p.yoki
==
=: let.dom +(let.dom)
hit.dom (~(put by hit.dom) +(let.dom) r.yaki)
hut.ran (~(put by hut.ran) r.yaki yaki)
lat.ran (~(uni by new-blobs) lat.ran)
==
=. file-store.args lat.ran
::
=^ ankh ford-cache.args
(checkout-ankh args deletes change-cages ank.dom)
=/ null (sane-ankh sane-continuation ankh)
=. ankh.args ankh
=. ank.dom ankh
=^ mim ford-cache.args
(checkout-mime args deletes ~(key by changes))
=. mim.dom (apply-changes-to-mim mim.dom mim)
=. fod.dom ford-cache.args
=. ..park (emil (print q.old-yaki data))
::
wake:(ergo mim)
::
:: Find which files changed or were deleted
::
++ get-changes
|= [old=(map path lobe) new=(map path (each page lobe))]
^- [deletes=(set path) changes=(map path (each page lobe))]
=/ old=(map path (each page lobe))
(~(run by old) |=(=lobe |+lobe))
:* %- silt ^- (list path)
%+ murn ~(tap by (~(uni by old) new))
|= [=path *]
^- (unit ^path)
=/ a (~(get by new) path)
=/ b (~(get by old) path)
?: |(=(a b) !=(~ a))
~
`path
::
%- malt ^- (list [path (each page lobe)])
%+ murn ~(tap by (~(uni by old) new))
|= [=path *]
^- (unit [^path (each page lobe)])
=/ a (~(get by new) path)
=/ b (~(get by old) path)
?: |(=(a b) ?=(~ a))
~
`[path u.a]
==
:: Find all files for full desk rebuild
::
++ changes-for-upgrade
|= $: old=(map path lobe)
deletes=(set path)
changes=(map path (each page lobe))
==
^+ changes
=. old
%+ roll ~(tap in deletes)
|= [pax=path old=_old]
(~(del by old) pax)
=/ pre=_changes (~(run by old) |=(lob=lobe |+lob))
(~(uni by pre) changes)
::
:: Keep any parts of the ford cache whose dependencies didn't change
::
:: Make sure to invalidate any paths whose '-'s or '/'s could be
:: converted in an import; i.e. /mar, /lib, and /sur hoon files.
::
++ promote-ford
|= [=ford-cache deletes=(set path) changes=(set path)]
^+ ford-cache
=/ invalid=(set path) (~(uni in deletes) changes)
=. invalid
%- ~(gas in invalid)
%- zing
%+ turn ~(tap in invalid)
|= pax=path
^- (list path)
=/ xap=path (flop pax)
?. &(=(%hoon (head xap)) ?=([?(%mar %sur %lib) @ @ *] pax))
~
=- (turn - |=(suf=path [i.pax (snoc suf %hoon)]))
%- segments
%- crip
=/ xup (tail xap) :: lose %hoon extension
=/ pux (tail (flop xup)) :: lose static prefix
%+ turn (tail (spud pux)) :: lose leading '/'
|=(c=@tD `@tD`?:(=('/' c) '-' c)) :: convert '/' to '-'
::
:* ((invalidate path vase) vases.ford-cache invalid)
((invalidate mark dais) marks.ford-cache invalid)
((invalidate mars tube) casts.ford-cache invalid)
==
::
++ invalidate
|* [key=mold value=mold]
|= [cache=(map key [value dez=(set path)]) invalid=(set path)]
=/ builds=(list [key value dez=(set path)]) ~(tap by cache)
|- ^+ cache
?~ builds
~
?: ?=(^ (~(int in dez.i.builds) invalid))
$(builds t.builds)
(~(put by $(builds t.builds)) i.builds)
::
++ build-reef
|= $: fer=(unit reef-cache)
invalid=(set path)
data=(map path (each page lobe))
==
^- reef-cache
?: =(%home syd)
[!>(..ride) !>(..is) !>(..zuse)]
|^
?: |(?=(~ fer) (~(has in invalid) /sys/hoon/hoon))
=/ [home=? hoon=vase]
?: (same-as-home /sys/hoon/hoon)
&+!>(..ride)
|+build-hoon
:- hoon
=/ [home=? arvo=vase]
?: &(home (same-as-home /sys/arvo/hoon))
&+!>(..is)
|+(build-arvo hoon)
:- arvo
?: &(home (same-as-home /sys/zuse/hoon))
!>(..zuse)
(build-zuse arvo)
:- hoon.u.fer
?: (~(has in invalid) /sys/arvo/hoon)
=/ [home=? arvo=vase]
?: &((same-as-home /sys/hoon/hoon) (same-as-home /sys/arvo/hoon))
&+!>(..is)
|+(build-arvo hoon.u.fer)
:- arvo
?: &(home (same-as-home /sys/zuse/hoon))
!>(..zuse)
(build-zuse arvo)
:- arvo.u.fer
?: (~(has in invalid) /sys/zuse/hoon)
?: ?& (same-as-home /sys/hoon/hoon)
(same-as-home /sys/arvo/hoon)
(same-as-home /sys/zuse/hoon)
==
!>(..zuse)
(build-zuse arvo.u.fer)
zuse.u.fer
::
++ build-hoon
%- road |.
~> %slog.0^leaf+"clay: building hoon on {<syd>}"
=/ gen
~> %mean.%hoon-parse-fail
(path-to-hoon data /sys/hoon/hoon)
~> %mean.%hoon-compile-fail
(slot 7 (slap !>(0) gen))
::
++ build-arvo
|= hoon=vase
%- road |.
~> %slog.0^leaf+"clay: building arvo on {<syd>}"
=/ gen
~> %mean.%arvo-parse-fail
(path-to-hoon data /sys/arvo/hoon)
~> %mean.%arvo-compile-fail
(slap (slap hoon gen) !,(*^hoon ..is))
::
++ build-zuse
|= arvo=vase
%- road |.
~> %slog.0^leaf+"clay: building zuse on {<syd>}"
=/ gen
~> %mean.%zuse-parse-fail
(path-to-hoon data /sys/zuse/hoon)
~> %mean.%zuse-compile-fail
(slap arvo gen)
::
++ same-as-home
|= =path
^- ?
=/ our-lobe=lobe
=/ datum (~(got by data) path)
?- -.datum
%& (page-to-lobe %hoon (page-to-cord p.datum))
%| p.datum
==
=/ =dome dom:(~(got by dos.rom) %home)
=/ =yaki (~(got by hut.ran) (~(got by hit.dome) let.dome))
=(`our-lobe (~(get by q.yaki) path))
--
::
++ page-to-cord
|= =page
^- @t
?+ p.page ~|([%sys-bad-mark p.page] !!)
%hoon ;;(@t q.page)
%mime q.q:;;(mime q.page)
==
::
++ path-to-hoon
|= [data=(map path (each page lobe)) =path]
(rain path (path-to-cord data path))
::
++ path-to-cord
|= [data=(map path (each page lobe)) =path]
^- @t
=/ datum (~(got by data) path)
?- -.datum
%& (page-to-cord p.datum)
%| (lobe-to-cord p.datum)
==
::
++ lobe-to-cord
|= =lobe
^- @t
=- ?:(?=(%& -<) p.- (of-wain:format p.-))
|- ^- (each @t wain)
=/ =blob (~(got by lat.ran) lobe)
?- -.blob
%direct [%& ;;(@t q.q.blob)]
%delta
:- %|
%+ lurk:differ
=- ?:(?=(%| -<) p.- (to-wain:format p.-))
$(lobe q.q.blob)
;;((urge cord) q.r.blob)
==
::
:: Updated q.yaki
::
++ checkout-changes
|= [=ford=args:ford:fusion changes=(map path (each page lobe))]
=/ cans=(list [=path change=(each page lobe)]) ~(tap by changes)
|- ^- [(map path [=lobe =cage]) ford-cache]
?~ cans
[~ ford-cache.ford-args]
=^ cage ford-cache.ford-args
:: ~> %slog.[0 leaf+"clay: validating {(spud path.i.cans)}"]
%- wrap:fusion
(get-value:(ford:fusion ford-args) path.i.cans)
=/ =lobe
?- -.change.i.cans
%| p.change.i.cans
:: Don't use p.change.i.cans because that's before casting to
:: the correct mark.
::
%& (page-to-lobe [p q.q]:cage)
==
=^ so-far ford-cache.ford-args $(cans t.cans)
[(~(put by so-far) path.i.cans lobe cage) ford-cache.ford-args]
::
:: Update ankh
::
++ checkout-ankh
|= $: =ford=args:ford:fusion
deletes=(set path)
changes=(map path [lobe cage])
=ankh
==
^+ [ankh ford-cache.ford-args]
:: Delete
::
=. ankh
=/ dels ~(tap in deletes)
|- ^- ^ankh
=* outer-loop $
?~ dels
ankh
=. ankh
|- ^- ^ankh
=* inner-loop $
?~ i.dels
ankh(fil ~)
%= ankh
dir
%+ ~(put by dir.ankh) i.i.dels
%= inner-loop
i.dels t.i.dels
ankh (~(gut by dir.ankh) i.i.dels *^ankh)
==
==
outer-loop(dels t.dels)
:: Add/change
::
=/ cans=(list [=path =lobe =cage]) ~(tap by changes)
|- ^+ [ankh ford-cache.ford-args]
=* outer-loop $
?~ cans
[ankh ford-cache.ford-args]
=^ new-ankh ford-cache.ford-args
|- ^+ [ankh ford-cache.ford-args]
=* inner-loop $
?^ path.i.cans
=^ child-ankh ford-cache.ford-args
%= inner-loop
path.i.cans t.path.i.cans
ankh (~(gut by dir.ankh) i.path.i.cans *^ankh)
==
:- ankh(dir (~(put by dir.ankh) i.path.i.cans child-ankh))
ford-cache.ford-args
[ankh(fil `[lobe.i.cans cage.i.cans]) ford-cache.ford-args]
=. ankh new-ankh
outer-loop(cans t.cans)
::
:: Print notification to console
::
++ print
|= [old=(map path lobe) new=(map path lobe)]
^- (list move)
=/ [deletes=(set path) upserts=(map path (each page lobe))]
(get-changes old (~(run by new) |=(=lobe |+lobe)))
=/ upsert-set ~(key by upserts)
=/ old-set ~(key by old)
=/ changes=(set path) (~(int in upsert-set) old-set)
=/ additions=(set path) (~(dif in upsert-set) old-set)
?~ hun
~
?: (lte let.dom 1)
~
|^
;: weld
(paths-to-notes '-' deletes)
(paths-to-notes ':' changes)
(paths-to-notes '+' additions)
==
::
++ paths-to-notes
|= [prefix=@tD paths=(set path)]
%+ turn ~(tap in paths)
|= =path
[u.hun %give %note prefix (path-to-tank path)]
::
++ path-to-tank
|= =path
=/ pre=^path ~[(scot %p our) syd (scot %ud let.dom)]
:+ %rose ["/" "/" ~]
%+ turn (weld pre path)
|= a=cord
^- tank
?: ((sane %ta) a)
[%leaf (trip a)]
[%leaf (dash:us (trip a) '\'' ~)]
--
::
:: Check sanity
::
++ sane-changes
|= $: changes=(map path (each page lobe))
change-cages=(map path [lobe cage])
==
^- (unit [(map path [lobe cage]) args:ford:fusion])
?. check-sane
~
=/ tak=(unit tako) (~(get by hit.dom) let.dom)
?~ tak
~
=/ =yaki (~(got by hut.ran) u.tak)
:: Assert all blobs hash to their lobe
::
=/ foo
%- ~(urn by lat.ran)
|= [=lobe =blob]
?: ?=(%delta -.blob)
~
=/ actual-lobe=^lobe `@uv`(page-to-lobe q.blob)
~| [lobe p.blob actual-lobe]
?> &(=(lobe p.blob) =(lobe actual-lobe))
~
:: Assert we calculated the same change-cages w/o cache
::
:: XX remove deletes
::
=/ all-changes=(map path (each page lobe))
=/ original=(map path (each page lobe))
(~(run by q.yaki) |=(=lobe |+lobe))
(~(uni by original) changes)
=/ =args:ford:fusion
[zuse:(need fer.dom) *ankh ~ all-changes lat.ran *ford-cache]
=^ all-change-cages ford-cache.args
(checkout-changes args all-changes)
=/ ccs=(list [=path =lobe =cage]) ~(tap by change-cages)
|- ^+ *sane-changes
?^ ccs
?. =(`[lobe cage]:i.ccs (~(get by all-change-cages) path.i.ccs))
~| not-same-cages+path.i.ccs
!!
$(ccs t.ccs)
`[all-change-cages args]
::
++ sane-ankh
|= $: $= cont
(unit [all-changes=(map path [lobe cage]) =ford=args:ford:fusion])
=test=ankh
==
?. check-sane
~
:: Assert all new lobes are reachable.
::
:: Needs to run after dome is updated
::
=/ tak=(unit tako) (~(get by hit.dom) let.dom)
?~ tak
~
=/ =yaki (~(got by hut.ran) u.tak)
=/ files=(list [=path =lobe]) ~(tap by q.yaki)
|- ^+ *sane-ankh
?^ files
?. (~(has by lat.ran) lobe.i.files)
~| missing-lobe=[path lobe]
!!
$(files t.files)
::
:: Assert we can rebuild the ankh
::
?~ cont
~
=+ u.cont
=^ ankh ford-cache.ford-args
(checkout-ankh ford-args ~ all-changes *ankh)
=| =path
|- ^- ~
=* loop $
=/ fil (bind fil.ankh |=([=lobe =cage] [lobe p.cage q.q.cage]))
=/ test (bind fil.ankh |=([=lobe =cage] [lobe p.cage q.q.cage]))
?. =(fil test)
~| [%not-same-file path ?=(~ fil.ankh) ?=(~ fil.test-ankh)]
~| ?~(fil.ankh ~ [[p p.q]:u.fil.ankh `@uv`(page-to-lobe [p q.q]:q.u.fil.ankh)])
~| ?~(fil.test-ankh ~ [[p p.q]:u.fil.test-ankh `@uv`(page-to-lobe [p q.q]:q.u.fil.test-ankh)])
!!
?. =(~(key by dir.ankh) ~(key by dir.test-ankh))
~| [%not-same-children path ~(key by dir.ankh) ~(key by dir.test-ankh)]
!!
=< ~
%+ turn ~(tap by dir.ankh)
|= [=@ta =child=^ankh]
~| sane-ankh=[path ta]
%= loop
path (snoc path ta)
ankh child-ankh
test-ankh (~(got by dir.test-ankh) ta)
==
::
:: Find /sys changes; does not reload on first commit
::
++ need-sys-update
|= changes=(map path (each page lobe))
^- (map path (each page lobe))
~+
?: =(0 let.dom)
~
%- malt
%+ skim ~(tap by changes)
|= [=path *]
?| =(/sys/hoon/hoon path)
=(/sys/arvo/hoon path)
=(/sys/zuse/hoon path)
==
::
++ need-vane-update
|= changes=(map path (each page lobe))
^- (map path (each page lobe))
~+
?: =(0 let.dom)
~
%- malt
%+ skim ~(tap by changes)
|= [=path *]
=(/sys/vane (scag 2 path))
::
:: Delay current update until sys update is complete
::
++ sys-update
|= $: =yoki
data=(map path (each page lobe))
changes=(map path (each page lobe))
==
^+ ..park
=/ updates
%- ~(uni by (need-sys-update changes))
(need-vane-update changes)
?> =(~ pud)
=. pud `[syd yoki]
|^ %. [hen %slip %c %pork ~]
=< emit
?: (~(has by updates) /sys/hoon/hoon)
(reset &)
?: (~(has by updates) /sys/arvo/hoon)
(reset |)
?: (~(has by updates) /sys/zuse/hoon)
reboot
=/ vanes=(list [=path *]) ~(tap by updates)
|- ^+ ..park
?~ vanes
..park
?. ?=([%sys %vane * %hoon ~] path.i.vanes)
~& [%strange-sys-update path.i.vanes]
$(vanes t.vanes)
=. ..park (reload i.t.t.path.i.vanes)
$(vanes t.vanes)
::
++ reset
|= new-hoon=?
^+ ..park
?. new-hoon
=/ arvo=@t (path-to-cord data /sys/arvo/hoon)
=. ..park (pass-lyra hoon=~ arvo)
reboot
=/ hoon=@t (path-to-cord data /sys/hoon/hoon)
=/ arvo=@t (path-to-cord data /sys/arvo/hoon)
=. ..park (pass-lyra `hoon arvo)
reboot
::
++ pass-lyra
|= [hoon=(unit @t) arvo=@t]
^+ ..park
(emit hen %pass /reset %d %flog %lyra hoon arvo)
::
++ reboot
=/ zuse=@t (path-to-cord data /sys/zuse/hoon)
=. ..park
%- emit
[hen %pass /reboot %d %flog %veer %$ /sys/zuse/hoon zuse]
reload-all
::
++ reload-all
=/ vanes=(list term)
~[%ames %behn %clay %dill %eyre %gall %iris %jael]
|- ^+ ..park
?~ vanes
..park
=. ..park (reload i.vanes)
$(vanes t.vanes)
::
++ reload
|= =term
=/ vane=@t (path-to-cord data /sys/vane/[term]/hoon)
%- emit
=/ tip (end 3 1 term)
=/ =path /sys/vane/[term]/hoon
[hen %pass /reload %d %flog %veer tip path vane]
--
--
::
:: We always say we're merging from 'ali' to 'bob'. The basic steps,
:: not all of which are always needed, are:
::
:: -- fetch ali's desk, async in case it's remote
:: -- diff ali's desk against the mergebase
:: -- diff bob's desk against the mergebase
:: -- merge the diffs
:: -- commit
::
++ start-merge
|= [=ali=ship =ali=desk =case =germ]
^+ ..start-merge
=/ =wire /merge/[syd]/(scot %p ali-ship)/[ali-desk]/[germ]
(emit hen %pass wire %c %warp ali-ship ali-desk `[%sing %v case /])
::
++ merge
|= [=ali=ship =ali=desk =germ =riot]
^+ ..merge
|^
?~ riot
(done %| %ali-unavailable >[ali-ship ali-desk germ]< ~)
=/ ali-dome=dome:clay !<(dome:clay q.r.u.riot)
=/ ali-yaki=yaki (~(got by hut.ran) (~(got by hit.ali-dome) let.ali-dome))
=/ bob-yaki=(unit yaki)
?~ let.dom
~
(~(get by hut.ran) (~(got by hit.dom) let.dom))
=/ merge-result (merge-by-germ ali-yaki bob-yaki)
?: ?=(%| -.merge-result)
(done %| p.merge-result)
?~ p.merge-result
(done %& ~)
=. ..merge (done %& conflicts.u.p.merge-result)
(park | new.u.p.merge-result ~ lat.u.p.merge-result)
::
++ done
|= result=(each (set path) (pair term tang))
^+ ..merge
(emit hen %give %mere result)
::
+$ merge-result [conflicts=(set path) new=yoki lat=(map lobe blob)]
++ merge-by-germ
|= [=ali=yaki bob-yaki=(unit yaki)]
^- (each (unit merge-result) [term tang])
::
:: If this is an %init merge, we set the ali's commit to be
:: bob's.
::
?: ?=(%init germ)
?> ?=(~ bob-yaki)
&+`[conflicts=~ new=|+ali-yaki lat=~]
::
=/ bob-yaki (need bob-yaki)
|^
^- (each (unit merge-result) [term tang])
?- germ
::
:: If this is a %only-this merge, we check to see if ali's and bob's
:: commits are the same, in which case we're done. Otherwise, we
:: check to see if ali's commit is in the ancestry of bob's, in
:: which case we're done. Otherwise, we create a new commit with
:: bob's data plus ali and bob as parents.
::
%only-this
?: =(r.ali-yaki r.bob-yaki)
&+~
?: (~(has in (reachable-takos:ze r.bob-yaki)) r.ali-yaki)
&+~
:* %& ~
conflicts=~
new=&+[[r.bob-yaki r.ali-yaki ~] (to-yuki q.bob-yaki)]
lat=~
==
::
:: If this is a %only-that merge, we check to see if ali's and bob's
:: commits are the same, in which case we're done. Otherwise, we
:: create a new commit with ali's data plus ali and bob as
:: parents.
::
%only-that
?: =(r.ali-yaki r.bob-yaki)
&+~
:* %& ~
conflicts=~
new=&+[[r.bob-yaki r.ali-yaki ~] (to-yuki q.ali-yaki)]
lat=~
==
::
:: Create a merge commit with exactly the contents of the
:: destination desk except take any files from the source commit
:: which are not in the destination desk.
::
%take-this
?: =(r.ali-yaki r.bob-yaki)
&+~
?: (~(has in (reachable-takos:ze r.bob-yaki)) r.ali-yaki)
&+~
=/ new-data (~(uni by q.ali-yaki) q.bob-yaki)
:* %& ~
conflicts=~
new=&+[[r.bob-yaki r.ali-yaki ~] (to-yuki new-data)]
lat=~
==
::
:: Create a merge commit with exactly the contents of the source
:: commit except preserve any files from the destination desk
:: which are not in the source commit.
::
%take-that
?: =(r.ali-yaki r.bob-yaki)
&+~
=/ new-data (~(uni by q.bob-yaki) q.ali-yaki)
:* %& ~
conflicts=~
new=&+[[r.bob-yaki r.ali-yaki ~] (to-yuki new-data)]
lat=~
==
::
:: If this is a %fine merge, we check to see if ali's and bob's
:: commits are the same, in which case we're done. Otherwise, we
:: check to see if ali's commit is in the ancestry of bob's, in
:: which case we're done. Otherwise, we check to see if bob's
:: commit is in the ancestry of ali's. If not, this is not a
:: fast-forward merge, so we error out. If it is, we add ali's
:: commit to bob's desk and checkout.
::
%fine
?: =(r.ali-yaki r.bob-yaki)
&+~
?: (~(has in (reachable-takos:ze r.bob-yaki)) r.ali-yaki)
&+~
?. (~(has in (reachable-takos:ze r.ali-yaki)) r.bob-yaki)
:~ %| %bad-fine-merge
leaf+"tried fast-forward but is not ancestor or descendant"
==
&+`[conflicts=~ new=|+ali-yaki lat=~]
::
?(%meet %mate %meld %meet-this %meet-that)
?: =(r.ali-yaki r.bob-yaki)
&+~
?: (~(has in (reachable-takos:ze r.bob-yaki)) r.ali-yaki)
&+~
?: (~(has in (reachable-takos:ze r.ali-yaki)) r.bob-yaki)
$(germ %fine)
=/ merge-points (find-merge-points ali-yaki bob-yaki)
?~ merge-points
:~ %| %merge-no-merge-base
leaf+"consider a %this or %that merge to get a mergebase"
==
=/ merge-point=yaki n.merge-points
?: ?=(?(%mate %meld) germ)
=/ ali-diffs=cane (diff-base ali-yaki bob-yaki merge-point)
=/ bob-diffs=cane (diff-base bob-yaki ali-yaki merge-point)
=/ bof=(map path (unit cage))
(merge-conflicts can.ali-diffs can.bob-diffs)
(build ali-yaki bob-yaki merge-point ali-diffs bob-diffs bof)
=/ ali-diffs=cane (calc-diffs ali-yaki merge-point)
=/ bob-diffs=cane (calc-diffs bob-yaki merge-point)
=/ both-diffs=(map path *)
%- %~ int by
%- ~(uni by `(map path *)`new.ali-diffs)
%- ~(uni by `(map path *)`cal.ali-diffs)
%- ~(uni by `(map path *)`can.ali-diffs)
`(map path *)`old.ali-diffs
%- ~(uni by `(map path *)`new.bob-diffs)
%- ~(uni by `(map path *)`cal.bob-diffs)
%- ~(uni by `(map path *)`can.bob-diffs)
`(map path *)`old.bob-diffs
?: &(?=(%meet germ) !=(~ both-diffs))
:~ %| %meet-conflict
>~(key by both-diffs)<
leaf+"consider a %mate merge"
==
=/ both-done=(map path lobe)
|^
?- germ
%meet ~
%meet-this (resolve (~(uni by new.bob-diffs) cal.bob-diffs))
%meet-that (resolve (~(uni by new.ali-diffs) cal.ali-diffs))
==
++ resolve
|= news=(map path lobe)
%- malt ^- (list [path lobe])
%+ murn ~(tap by both-diffs)
|= [=path *]
^- (unit [^path lobe])
=/ new (~(get by news) path)
?~ new
~
`[path u.new]
--
::
=/ deleted
%- ~(dif by (~(uni by old.ali-diffs) old.bob-diffs))
(~(run by both-done) |=(* ~))
=/ not-deleted=(map path lobe)
%+ roll ~(tap by deleted)
=< .(not-deleted q.merge-point)
|= [[pax=path ~] not-deleted=(map path lobe)]
(~(del by not-deleted) pax)
=/ hat=(map path lobe)
%- ~(uni by not-deleted)
%- ~(uni by new.ali-diffs)
%- ~(uni by new.bob-diffs)
%- ~(uni by cal.ali-diffs)
cal.bob-diffs
:* %& ~
conflicts=~
new=&+[[r.bob-yaki r.ali-yaki ~] (to-yuki hat)]
lat=~
==
==
::
++ to-yuki
|= m=(map path lobe)
^- (map path (each page lobe))
(~(run by m) |=(=lobe |+lobe))
::
:: The set of changes between the mergebase and one of the desks
:: being merged
::
:: -- `new` is the set of files in the new desk and not in the
:: mergebase.
:: -- `cal` is the set of changes in the new desk from the
:: mergebase except for any that are also in the other new desk.
:: -- `can` is the set of changes in the new desk from the
:: mergebase that are also in the other new desk (potential
:: conflicts).
:: -- `old` is the set of files in the mergebase and not in the
:: new desk.
::
+$ cane
$: new=(map path lobe)
cal=(map path lobe)
can=(map path cage)
old=(map path ~)
==
::
:: Calculate cane knowing there are no files changed by both
:: desks
::
++ calc-diffs
|= [hed=yaki bas=yaki]
^- cane
:* %- molt
%+ skip ~(tap by q.hed)
|= [pax=path lob=lobe]
(~(has by q.bas) pax)
::
%- molt
%+ skip ~(tap by q.hed)
|= [pax=path lob=lobe]
=+ (~(get by q.bas) pax)
|(=(~ -) =([~ lob] -))
::
~
::
%- malt ^- (list [path ~])
%+ murn ~(tap by q.bas)
|= [pax=path lob=lobe]
^- (unit (pair path ~))
?. =(~ (~(get by q.hed) pax))
~
`[pax ~]
==
::
:: Diff yak against bas where different from yuk
::
++ diff-base
|= [yak=yaki yuk=yaki bas=yaki]
^- cane
=/ new=(map path lobe)
%- malt
%+ skip ~(tap by q.yak)
|= [=path =lobe]
(~(has by q.bas) path)
::
=/ cal=(map path lobe)
%- malt ^- (list [path lobe])
%+ murn ~(tap by q.bas)
|= [pax=path lob=lobe]
^- (unit (pair path lobe))
=+ a=(~(get by q.yak) pax)
=+ b=(~(get by q.yuk) pax)
?. ?& ?=(^ a)
!=([~ lob] a)
=([~ lob] b)
==
~
`[pax +.a]
::
=/ can=(map path cage)
%- malt
%+ murn ~(tap by q.bas)
|= [=path =lobe]
^- (unit [^path cage])
=/ in-yak (~(get by q.yak) path)
?~ in-yak
~
?: =(lobe u.in-yak)
~
=/ in-yuk (~(get by q.yuk) path)
?~ in-yuk
~
?: =(lobe u.in-yuk)
~
?: =(u.in-yak u.in-yuk)
~
`[path (diff-lobes lobe u.in-yak)]
::
=/ old=(map path ~)
%- malt ^- (list [path ~])
%+ murn ~(tap by q.bas)
|= [pax=path lob=lobe]
?. =(~ (~(get by q.yak) pax))
~
(some pax ~)
::
[new cal can old]
::
:: These can/should save their caches
::
++ lobe-to-cage
|= =lobe
^- cage
=^ =page fod.dom
%- wrap:fusion
(lobe-to-page:(ford:fusion static-ford-args) lobe)
=^ =cage fod.dom
%- wrap:fusion
(page-to-cage:(ford:fusion static-ford-args) page)
cage
::
++ get-dais
|= =mark
^- dais
=^ =dais fod.dom
%- wrap:fusion
(get-mark:(ford:fusion static-ford-args) mark)
dais
::
:: Diff two files on bob-desk
::
++ diff-lobes
|= [=a=lobe =b=lobe]
^- cage
=/ a-cage (lobe-to-cage a-lobe)
=/ b-cage (lobe-to-cage b-lobe)
?> =(p.a-cage p.b-cage)
=/ =dais (get-dais p.a-cage)
[form:dais (~(diff dais q.a-cage) q.b-cage)]
::
:: Merge diffs that are on the same file.
::
++ merge-conflicts
|= [ali-conflicts=(map path cage) bob-conflicts=(map path cage)]
^- (map path (unit cage))
%- ~(urn by (~(int by ali-conflicts) bob-conflicts))
|= [=path *]
^- (unit cage)
=/ cal=cage (~(got by ali-conflicts) path)
=/ cob=cage (~(got by bob-conflicts) path)
=/ =mark
=+ (slag (dec (lent path)) path)
?~(- %$ i.-)
=/ =dais (get-dais mark)
=/ res=(unit (unit vase)) (~(join dais bunt:dais) q.cal q.cob)
?~ res
`[form:dais q.cob]
?~ u.res
~
`[form:dais u.u.res]
::
:: Apply the patches in bof to get the new merged content.
::
:: Gather all the changes between ali's and bob's commits and the
:: mergebase. This is similar to the %meet of ++merge, except
:: where they touch the same file, we use the merged versions.
::
++ build
|= $: ali=yaki
bob=yaki
bas=yaki
dal=cane
dob=cane
bof=(map path (unit cage))
==
^- (each (unit merge-result) [term tang])
=/ both-patched=(map path cage)
%- malt
%+ murn ~(tap by bof)
|= [=path cay=(unit cage)]
^- (unit [^path cage])
?~ cay
~
:+ ~ path
=+ (~(get by q.bas) path)
?~ -
~| %mate-strange-diff-no-base
!!
=/ =cage (lobe-to-cage u.-)
=/ =dais (get-dais p.cage)
?> =(p.u.cay form.dais)
:- p.cage
(~(pact dais q.cage) q.u.cay)
=/ con=(map path *) :: 2-change conflict
%- molt
%+ skim ~(tap by bof)
|=([pax=path cay=(unit cage)] ?=(~ cay))
=/ cab=(map path lobe) :: conflict base
%- ~(urn by con)
|= [pax=path *]
(~(got by q.bas) pax)
=. con :: change+del conflict
%- ~(uni by con)
%- malt ^- (list [path *])
%+ skim ~(tap by old.dal)
|= [pax=path ~]
?: (~(has by new.dob) pax)
~| %strange-add-and-del
!!
(~(has by can.dob) pax)
=. con :: change+del conflict
%- ~(uni by con)
%- malt ^- (list [path *])
%+ skim ~(tap by old.dob)
|= [pax=path ~]
?: (~(has by new.dal) pax)
~| %strange-del-and-add
!!
(~(has by can.dal) pax)
=. con :: add+add conflict
%- ~(uni by con)
%- malt ^- (list [path *])
%+ skip ~(tap by (~(int by new.dal) new.dob))
|= [pax=path *]
=((~(got by new.dal) pax) (~(got by new.dob) pax))
?: &(?=(%mate germ) ?=(^ con))
=+ (turn ~(tap by `(map path *)`con) |=([path *] >[+<-]<))
[%| %mate-conflict -]
=/ old=(map path lobe) :: oldies but goodies
%+ roll ~(tap by (~(uni by old.dal) old.dob))
=< .(old q.bob)
|= [[pax=path ~] old=(map path lobe)]
(~(del by old) pax)
=/ [hot=(map path lobe) lat=(map lobe blob)] :: new content
%+ roll ~(tap by both-patched)
|= [[pax=path cay=cage] hat=(map path lobe) lat=(map lobe blob)]
=/ =blob [%direct (page-to-lobe [p q.q]:cay) [p q.q]:cay]
:- (~(put by hat) pax p.blob)
?: (~(has by lat) p.blob)
lat
(~(put by lat) p.blob blob)
=/ hat=(map path lobe) :: all the content
%- ~(uni by old)
%- ~(uni by new.dal)
%- ~(uni by new.dob)
%- ~(uni by cal.dal)
%- ~(uni by cal.dob)
%- ~(uni by hot)
cab
=/ del=(map path ?)
(~(run by (~(uni by old.dal) old.dob)) |=(~ %|))
=/ new &+[[r.bob r.ali ~] (~(run by hat) |=(=lobe |+lobe))]
:* %& ~
(silt (turn ~(tap by con) head))
new
lat
==
--
--
::
:: Find the most recent common ancestor(s).
::
:: For performance, this depends on +reachable-takos being
:: memoized.
::
++ find-merge-points
|= [=ali=yaki =bob=yaki]
^- (set yaki)
:: Loop through ancestors breadth-first, lazily generating ancestry
::
=/ ali-takos (reachable-takos:ze r.ali-yaki)
:: Tako worklist
::
=/ takos=(qeu tako) [r.bob-yaki ~ ~]
:: Mergebase candidates. Have proven they're common ancestors, but
:: not that they're a most recent
::
=| bases=(set tako)
:: Takos we've already checked or are in our worklist
::
=| done=(set tako)
|- ^- (set yaki)
=* outer-loop $
:: If we've finished our worklist, convert to yakis and return
::
?: =(~ takos)
(silt (turn ~(tap in bases) ~(got by hut.ran)))
=^ =tako takos ~(get to takos)
=. done (~(put in done) tako)
:: If this is a common ancestor, stop recursing through our
:: parentage. Check if it's comparable to any existing candidate.
::
?: (~(has in ali-takos) tako)
=/ base-list ~(tap in bases)
|- ^- (set yaki)
=* bases-loop $
?~ base-list
:: Proven it's not an ancestor of any previous candidate.
:: Remove all ancestors of new candidate and add it to the
:: candidate list.
::
=. bases
=/ new-reachable (reachable-takos:ze tako)
(~(put in (~(dif in bases) new-reachable)) tako)
outer-loop
:: If it's an ancestor of another candidate, this is not most
:: recent, so skip and try next in worklist.
::
=/ base-reachable (reachable-takos:ze i.base-list)
?: (~(has in base-reachable) tako)
outer-loop
bases-loop(base-list t.base-list)
:: Append parents to list and recurse
::
=/ bob-yaki (~(got by hut.ran) tako)
=/ new-candidates (skip p.bob-yaki ~(has in done))
%_ outer-loop
done (~(gas in done) new-candidates)
takos (~(gas to takos) new-candidates)
==
::
:: Update mime cache
::
++ checkout-mime
|= $: =ford=args:ford:fusion
deletes=(set path)
changes=(set path)
==
^- [(map path (unit mime)) ford-cache]
=/ mim=(map path (unit mime))
=/ dels=(list path) ~(tap by deletes)
|- ^- (map path (unit mime))
?~ dels
~
(~(put by $(dels t.dels)) i.dels ~)
=/ cans=(list path) ~(tap by changes)
|- ^- [(map path (unit mime)) ford-cache]
?~ cans
[mim ford-cache.ford-args]
=^ cage ford-cache.ford-args
~| mime-cast-fail+i.cans
(wrap:fusion (cast-path:(ford:fusion ford-args) i.cans %mime))
=^ mim ford-cache.ford-args $(cans t.cans)
[(~(put by mim) i.cans `!<(mime q.cage)) ford-cache.ford-args]
::
:: Add or remove entries to the mime cache
::
++ apply-changes-to-mim
|= [mim=(map path mime) changes=(map path (unit mime))]
^- (map path mime)
=/ changes-l=(list [pax=path change=(unit mime)])
~(tap by changes)
|- ^- (map path mime)
?~ changes-l
mim
?~ change.i.changes-l
$(changes-l t.changes-l, mim (~(del by mim) pax.i.changes-l))
$(changes-l t.changes-l, mim (~(put by mim) [pax u.change]:i.changes-l))
::
:: Emit update to unix sync
::
++ ergo
|= mim=(map path (unit mime))
^+ ..park
=/ must (must-ergo her syd mon (turn ~(tap by mim) head))
%- emil
%+ turn ~(tap by must)
|= [pot=term len=@ud pak=(set path)]
:* (need hez) %give %ergo pot
%+ turn ~(tap in pak)
|= pax=path
[(slag len pax) (~(got by mim) pax)]
==
::
:: Output is a map of mount points to {length-of-mounted-path set-of-paths}.
::
++ must-ergo
|= [our=ship syd=desk mon=(map term beam) can=(list path)]
^- (map term (pair @ud (set path)))
%- malt ^- (list (trel term @ud (set path)))
%+ murn ~(tap by mon)
|= [nam=term bem=beam]
^- (unit (trel term @ud (set path)))
=- ?~(- ~ `[nam (lent s.bem) (silt `(list path)`-)])
%+ skim can
|= pax=path
&(=(p.bem our) =(q.bem syd) =(s.bem (scag (lent s.bem) pax)))
::
:: Mount a beam to unix
::
++ mount
|= [pot=term =case =spur]
^+ ..mount
=/ old-mon (~(get by mon) pot)
?^ old-mon
%- (slog >%already-mounted< >u.old-mon< ~)
..mount
=. mon (~(put by mon) pot [her syd case] spur)
=/ =yaki (~(got by hut.ran) (~(got by hit.dom) let.dom))
=/ changes (~(run by q.yaki) |=(=lobe |+lobe))
=/ =args:ford:fusion
[zuse:(need fer.dom) ank.dom ~ changes lat.ran fod.dom]
=^ mim ford-cache.args
(checkout-mime args ~ ~(key by changes))
=. mim.dom (apply-changes-to-mim mim.dom mim)
=. fod.dom ford-cache.args
(ergo mim)
::
:: Set permissions for a node.
::
++ perm
|= [pax=path rit=rite]
^+ +>
=/ mis=(set @ta)
%+ roll
=- ~(tap in -)
?- -.rit
%r who:(fall red.rit *rule)
%w who:(fall wit.rit *rule)
%rw (~(uni in who:(fall red.rit *rule)) who:(fall wit.rit *rule))
==
|= [w=whom s=(set @ta)]
?: |(?=(%& -.w) (~(has by cez) p.w)) s
(~(put in s) p.w)
?^ mis
:: TODO remove this nasty hack
::
?. ?=([[%a *] *] hen)
+>.$
=- (emit hen %give %done `[%perm-fail [%leaf "No such group(s): {-}"]~])
%+ roll ~(tap in `(set @ta)`mis)
|= [g=@ta t=tape]
?~ t (trip g)
:(weld t ", " (trip g))
:: TODO remove this nasty hack
::
=< ?. ?=([[%a *] *] hen)
.
(emit hen %give %done ~)
::
?- -.rit
%r wake(per (put-perm per pax red.rit))
%w wake(pew (put-perm pew pax wit.rit))
%rw wake(per (put-perm per pax red.rit), pew (put-perm pew pax wit.rit))
==
::
++ put-perm
|= [pes=regs pax=path new=(unit rule)]
?~ new (~(del by pes) pax)
(~(put by pes) pax u.new)
::
:: Remove a group from all rules.
::
++ forget-crew
|= nom=@ta
%= +>
per (forget-crew-in nom per)
pew (forget-crew-in nom pew)
==
::
++ forget-crew-in
|= [nom=@ta pes=regs]
%- ~(run by pes)
|= r=rule
r(who (~(del in who.r) |+nom))
::
:: Cancel a request.
::
:: For local requests, we just remove it from `qyx`. For foreign requests,
:: we remove it from `ref` and tell the foreign ship to cancel as well.
::
++ cancel-request :: release request
^+ ..cancel-request
=^ wos=(list wove) qyx
:_ (~(run by qyx) |=(a=(set duct) (~(del in a) hen)))
%- ~(rep by qyx)
|= [[a=wove b=(set duct)] c=(list wove)]
?.((~(has in b) hen) c [a c])
::
?~ ref
=> .(ref `(unit rind)`ref) :: XX TMI
?: =(~ wos) ..cancel-request :: XX handle?
|- ^+ ..cancel-request
?~ wos ..cancel-request
=. ..cancel-request (run-if-future rove.i.wos |=(@da (best hen +<)))
$(wos t.wos)
::
?~ nux=(~(get by fod.u.ref) hen)
..cancel-request(ref `(unit rind)`ref) :: XX TMI
=: fod.u.ref (~(del by fod.u.ref) hen)
bom.u.ref (~(del by bom.u.ref) u.nux)
==
%. [hen her u.nux [syd ~]]
send-over-ames(ref `(unit rind)`ref) :: XX TMI
::
:: Handles a request.
::
:: `%sing` requests are handled by ++aver. `%next` requests are handled by
:: running ++aver at the given case, and then subsequent cases until we find
:: a case where the two results aren't equivalent. If it hasn't happened
:: yet, we wait. `%many` requests are handled by producing as much as we can
:: and then waiting if the subscription range extends into the future.
::
++ start-request
|= [for=(unit [ship @ud]) rav=rave]
^+ ..start-request
=^ [new-sub=(unit rove) sub-results=(list sub-result)] fod.dom
(try-fill-sub for (rave-to-rove rav))
=. ..start-request (send-sub-results sub-results [hen ~ ~])
?~ new-sub
..start-request
(duce for u.new-sub)
::
:: Called when a foreign ship answers one of our requests.
::
:: If it's a `%many` request, process in +take-foreign-update
::
:: After updating ref (our request manager), we handle %x, %w, and %y
:: responses. For %x, we call ++validate-x to validate the type of
:: the response. For %y, we coerce the result to an arch.
::
++ take-foreign-answer :: external change
|= [inx=@ud rut=(unit rand)]
^+ +>
?> ?=(^ ref)
=+ ruv=(~(get by bom.u.ref) inx)
?~ ruv +>.$
=/ rav=rave rave.u.ruv
?: ?=(%many -.rav)
abet:(apex:(foreign-update inx) rut)
?~ rut
:: nothing here, so cache that
::
%_ wake
haw.u.ref
?. ?=(%sing -.rav) haw.u.ref
(~(put by haw.u.ref) mood.rav ~)
==
|^
=/ result=(unit cage) (validate u.rut)
=/ =mood [p.p q.p q]:u.rut
=: haw.u.ref (~(put by haw.u.ref) mood result)
bom.u.ref (~(del by bom.u.ref) inx)
fod.u.ref (~(del by fod.u.ref) hen)
==
wake
:: something here, so validate
::
++ validate
|= =rand
^- (unit cage)
?- p.p.rand
%a ~| %no-big-ford-builds-across-network-for-now !!
%b ~| %i-guess-you-ought-to-build-your-own-marks !!
%c ~| %casts-should-be-compiled-on-your-own-ship !!
%d ~| %totally-temporary-error-please-replace-me !!
%p ~| %requesting-foreign-permissions-is-invalid !!
%r ~| %no-cages-please-they-are-just-way-too-big !!
%s ~| %please-dont-get-your-takos-over-a-network !!
%t ~| %requesting-foreign-directory-is-vaporware !!
%u ~| %prolly-poor-idea-to-get-rang-over-network !!
%v ~| %weird-shouldnt-get-v-request-from-network !!
%z `(validate-z r.rand)
%w `(validate-w r.rand)
%x (validate-x [p.p q.p q r]:rand)
%y `[p.r.rand !>(;;(arch q.r.rand))]
==
::
:: Make sure the incoming data is a %w response
::
++ validate-w
|= =page
^- cage
:- p.page
?+ p.page ~| %strange-w-over-nextwork !!
%cass !>(;;(cass q.page))
%null [[%atom %n ~] ~]
%nako !>(~|([%molding [&1 &2 &3]:q.page] ;;(nako q.page)))
==
::
:: Make sure that incoming data is of the mark it claims to be.
::
++ validate-x
|= [car=care cas=case pax=path peg=page]
^- (unit cage)
=/ vale-result
%- mule |.
%- wrap:fusion
(page-to-cage:(ford:fusion static-ford-args) peg)
?: ?=(%| -.vale-result)
%- (slog >%validate-x-failed< p.vale-result)
~
`-.p.vale-result
::
:: Make sure the incoming data is a %z response
::
++ validate-z
|= =page
^- cage
?> ?=(%uvi p.page)
:- p.page
!>(;;(@uvI q.page))
--
::
:: Respond to backfill request
::
:: Maybe should verify the requester is allowed to access this blob?
::
++ give-backfill
|= =lobe
^+ ..give-backfill
(emit hen %give %boon (~(got by lat.ran) lobe))
::
:: Ingest foreign update, requesting missing blobs if necessary
::
++ foreign-update
|= inx=@ud
?> ?=(^ ref)
=/ [sat=update-state lost=?]
=/ ruv (~(get by bom.u.ref) inx)
?~ ruv
~& [%clay-foreign-update-lost her syd inx]
[*update-state &]
[u.ruv |]
=/ done=? |
=. hen duct.sat
|%
++ abet
^+ ..foreign-update
?: lost
..foreign-update
?: done
=: bom.u.ref (~(del by bom.u.ref) inx)
fod.u.ref (~(del by fod.u.ref) hen)
==
=<(?>(?=(^ ref) .) wake)
=. bom.u.ref (~(put by bom.u.ref) inx sat)
..foreign-update
::
++ apex
|= rut=(unit rand)
^+ ..abet
?: lost ..abet
?~ rut
=. nako.sat (~(put to nako.sat) ~)
work
?> ?=(%nako p.r.u.rut)
=/ nako ;;(nako q.r.u.rut)
=/ missing (missing-blobs nako)
=. need.sat `(list lobe)`(welp need.sat ~(tap in missing))
=. nako.sat (~(put to nako.sat) ~ nako)
work
::
++ missing-blobs
|= =nako
^- (set lobe)
=/ yakis ~(tap in lar.nako)
|- ^- (set lobe)
=* yaki-loop $
?~ yakis
~
=/ lobes=(list [=path =lobe]) ~(tap by q.i.yakis)
|- ^- (set lobe)
=* blob-loop $
?~ lobes
yaki-loop(yakis t.yakis)
?: (~(has by lat.ran) lobe.i.lobes)
blob-loop(lobes t.lobes)
(~(put in blob-loop(lobes t.lobes)) lobe.i.lobes)
::
:: Receive backfill response
::
++ take-backfill
|= =blob
^+ ..abet
?: lost ..abet
=? need.sat
?& ?=(%delta -.blob)
!(~(has by lat.ran) q.q.blob)
!(~(has by have.sat) q.q.blob)
==
[q.q.blob need.sat]
:: We can't put a blob in lat.ran if its parent isn't already
:: there. Unions are in reverse order so we don't overwrite
:: existing blobs.
::
=. ..abet
?: &(?=(%delta -.blob) !(~(has by lat.ran) q.q.blob))
..abet(have.sat (~(uni by (malt [p.blob `^blob`blob] ~)) have.sat))
..abet(lat.ran (~(uni by (malt [p.blob blob] ~)) lat.ran))
work(busy.sat |)
::
:: Fetch next blob
::
++ work
^+ ..abet
?: busy.sat
..abet
|- ^+ ..abet
?: =(~ need.sat)
:: NB: if you change to release nakos as we get enough blobs
:: for them instead of all at the end, you *must* store the
:: `lim` that should be applied after the nako is complete and
:: not use the one in the rave, since that will apply to the
:: end of subscription.
::
=. lat.ran (~(uni by have.sat) lat.ran)
|- ^+ ..abet
?: =(~ nako.sat)
..abet
=^ next=(unit nako) nako.sat ~(get to nako.sat)
?~ next
..abet(done &)
=. ..abet (apply-foreign-update u.next)
=. ..foreign-update =<(?>(?=(^ ref) .) wake)
$
?> ?=(^ need.sat)
:: This is what removes an item from `need`. This happens every
:: time we take a backfill response, but it could happen more than
:: once if we somehow got this data in the meantime (maybe from
:: another desk updating concurrently, or a previous update on this
:: same desk).
::
?: ?| (~(has by lat.ran) i.need.sat)
(~(has by have.sat) i.need.sat)
==
$(need.sat t.need.sat)
:: Otherwise, fetch the next blob
::
=/ =fill [%0 syd i.need.sat]
=/ =wire /back-index/(scot %p her)/[syd]/(scot %ud inx)
=/ =path [%backfill syd (scot %ud inx) ~]
=. ..foreign-update
=< ?>(?=(^ ref) .)
(emit hen %pass wire %a %plea her %c path fill)
..abet(busy.sat &)
::
:: When we get a %w foreign update, store this in our state.
::
:: We get the commits and blobs from the nako and add them to our
:: object store, then we update the map of aeons to commits and the
:: latest aeon.
::
++ apply-foreign-update
|= =nako
^+ ..abet
:: hit: updated commit-hashes by @ud case
:: nut: new commit-hash/commit pairs
:: hut: updated commits by hash
:: nat: new blob-hash/blob pairs
:: lat: updated blobs by hash
::
=/ hit (~(uni by hit.dom) gar.nako)
=/ nut (turn ~(tap in lar.nako) |=(=yaki [r.yaki yaki]))
=/ hut (~(uni by (malt nut)) hut.ran)
=/ nat (turn ~(tap in bar.nako) |=(=blob [p.blob blob]))
=/ lat (~(uni by (malt nat)) lat.ran)
:: traverse updated state and sanity check
::
=+ ~| :* %bad-foreign-update
[gar=gar.nako let=let.nako nut=(turn nut head) nat=(turn nat head)]
[hitdom=hit.dom letdom=let.dom]
==
?: =(0 let.nako)
~
=/ =aeon 1
|- ^- ~
=/ =tako
~| [%missing-aeon aeon] (~(got by hit) aeon)
=/ =yaki
~| [%missing-tako tako] (~(got by hut) tako)
=+ %+ turn
~(tap by q.yaki)
|= [=path =lobe]
~| [%missing-blob path lobe]
?> (~(has by lat) lobe)
~
?: =(let.nako aeon)
~
$(aeon +(aeon))
:: produce updated state
::
=/ =rave rave:(~(got by bom.u.ref) inx)
?> ?=(%many -.rave)
=: let.dom (max let.nako let.dom)
hit.dom hit
hut.ran hut
lat.ran lat
:: Is this correct? Seeems like it should only go to `to` if
:: we've gotten all the way to the end. Leaving this
:: behavior unchanged for now, but I believe it's wrong.
::
lim ?.(?=(%da -.to.moat.rave) lim p.to.moat.rave)
==
..abet
--
::
:: fire function if request is in future
::
++ run-if-future
|= [rov=rove fun=$-(@da _.)]
^+ +>.$
%+ fall
%+ bind
^- (unit @da)
?- -.rov
%sing
?. ?=(%da -.case.mood.rov) ~
`p.case.mood.rov
::
%next ~
%mult ~
%many
%^ hunt lth
?. ?=(%da -.from.moat.rov) ~
?. (lth now p.from.moat.rov) ~
[~ p.from.moat.rov]
?. ?=(%da -.to.moat.rov) ~
`(max now p.to.moat.rov)
==
fun
+>.$
::
++ rave-to-rove
|= rav=rave
^- rove
?- -.rav
%sing rav
%next [- mood ~ ~]:rav
%mult [- mool ~ ~ ~]:rav
%many [- track moat ~]:rav
==
::
++ rove-to-rave
|= rov=rove
^- rave
?- -.rov
%sing rov
%next [- mood]:rov
%mult [- mool]:rov
%many [- track moat]:rov
==
::
++ send-sub-results
|= [sub-results=(list sub-result) ducts=(set duct)]
^+ ..wake
?~ sub-results
..wake
=. ..wake
?- -.i.sub-results
%blab (blab-all ducts +.i.sub-results)
%bleb (bleb-all ducts +.i.sub-results)
%balk (balk-all ducts +.i.sub-results)
%blas (blas-all ducts +.i.sub-results)
%blub (blub-all ducts +.i.sub-results)
==
$(sub-results t.sub-results)
::
:: Loop through open subscriptions and check if we can fill any of
:: them.
::
++ wake
^+ .
=/ old-subs=(list [=wove ducts=(set duct)]) ~(tap by qyx)
=| new-subs=(list [=wove ducts=(set duct)])
|- ^+ ..wake
?~ old-subs
:: install new subs
::
..wake(qyx (~(gas by *cult) new-subs))
?: =(~ ducts.i.old-subs)
:: drop forgotten roves
::
$(old-subs t.old-subs)
=^ [new-sub=(unit rove) sub-results=(list sub-result)] fod.dom
(try-fill-sub wove.i.old-subs)
=. ..wake (send-sub-results sub-results ducts.i.old-subs)
=. new-subs
?~ new-sub
new-subs
[[[for.wove.i.old-subs u.new-sub] ducts.i.old-subs] new-subs]
$(old-subs t.old-subs)
::
:: Try to fill a subscription
::
++ try-fill-sub
|= [far=(unit [=ship ver=@ud]) rov=rove]
^- [[new-sub=(unit rove) (list sub-result)] ford-cache]
=/ for=(unit ship) ?~(far ~ `ship.u.far)
?- -.rov
%sing
=/ cache-value=(unit (unit cage))
?~(ref ~ (~(get by haw.u.ref) mood.rov))
?^ cache-value
:: if we have a result in our cache, produce it
::
:_ fod.dom
:- ~
?~ u.cache-value
[%blub ~]~
[%blab mood.rov %& u.u.cache-value]~
:: else, check to see if rove is for an aeon we know
::
=/ aeon=(unit aeon) (case-to-aeon case.mood.rov)
?~ aeon
[[`rov ~] fod.dom]
:: we have the appropriate aeon, so read in the data
::
=^ value=(unit (unit (each cage lobe))) fod.dom
(read-at-aeon:ze for u.aeon mood.rov)
?~ value
:: We don't have the data directly, which is potentially
:: problematical. How can we fetch the data?
::
?: =(0 u.aeon)
~& [%clay-sing-indirect-data-0 `path`[syd '0' path.mood.rov]]
[[~ ~] fod.dom]
~& [%clay-sing-indirect-data desk=syd mood=mood.rov aeon=u.aeon]
[[`rov ~] fod.dom]
:: we have the data, so we produce the results
::
[[~ [%balk u.value mood.rov]~] fod.dom]
::
:: %next is just %mult with one path, so we pretend %next = %mult here.
::
?(%next %mult)
:: because %mult requests need to wait on multiple files for each
:: revision that needs to be checked for changes, we keep two
:: cache maps. {old} is the revision at {(dec aeon)}, {new} is
:: the revision at {aeon}. if we have no {aeon} yet, that means
:: it was still unknown last time we checked.
::
=* vor rov
|^
=/ rov=rove
?: ?=(%mult -.vor) vor
:* %mult
[case [[care path] ~ ~]]:mood.vor
aeon.vor
[[[care.mood.vor path.mood.vor] cach.vor] ~ ~]
~
==
?> ?=(%mult -.rov)
:: we will either respond or store the maybe updated request.
::
=; [res=(each (map mood (unit (each cage lobe))) rove) fod=ford-cache]
:_ fod
?: ?=(%& -.res)
(respond p.res)
(store p.res)
:: recurse here on next aeon if possible/needed.
::
|- ^- [(each (map mood (unit (each cage lobe))) rove) ford-cache]
:: if we don't have an aeon yet, see if we have one now.
::
?~ aeon.rov
=/ aeon=(unit aeon) (case-to-aeon case.mool.rov)
:: if we still don't, wait.
::
?~ aeon [|+rov fod.dom]
:: if we do, update the request and retry.
::
$(aeon.rov `+(u.aeon), old-cach.rov ~, new-cach.rov ~)
:: if old isn't complete, try filling in the gaps.
::
=^ o fod.dom
?: (complete old-cach.rov)
[old-cach.rov fod.dom]
(read-unknown mool.rov(case [%ud (dec u.aeon.rov)]) old-cach.rov)
=. old-cach.rov o
:: if the next aeon we want to compare is in the future, wait again.
::
=/ next-aeon=(unit aeon) (case-to-aeon [%ud u.aeon.rov])
?~ next-aeon [|+rov fod.dom]
:: if new isn't complete, try filling in the gaps.
::
=^ n fod.dom
?: (complete new-cach.rov)
[new-cach.rov fod.dom]
(read-unknown mool.rov(case [%ud u.aeon.rov]) new-cach.rov)
=. new-cach.rov n
:: if they're still not both complete, wait again.
::
?. ?& (complete old-cach.rov)
(complete new-cach.rov)
==
[|+rov fod.dom]
:: both complete, so check if anything has changed
::
=/ changes=(map mood (unit (each cage lobe)))
%+ roll ~(tap by old-cach.rov)
|= $: [[car=care pax=path] old-cach-value=cach]
changes=(map mood (unit (each cage lobe)))
==
=/ new-cach-value=cach (~(got by new-cach.rov) car pax)
?< |(?=(~ old-cach-value) ?=(~ new-cach-value))
=/ new-entry=(unit (pair mood (unit (each cage lobe))))
=/ =mood [car [%ud u.aeon.rov] pax]
?~ u.old-cach-value
?~ u.new-cach-value
:: not added
::
~
:: added
::
`[mood `u.u.new-cach-value]
?~ u.new-cach-value
:: deleted
::
`[mood ~]
?: (equivalent-data:ze u.u.new-cach-value u.u.old-cach-value)
:: unchanged
::
~
:: changed
::
`[mood `u.u.new-cach-value]
:: if changed, save the change
::
?~ new-entry
changes
(~(put by changes) u.new-entry)
:: if there are any changes, send response. if none, move on to
:: next aeon.
::
?^ changes [&+changes fod.dom]
$(u.aeon.rov +(u.aeon.rov), new-cach.rov ~)
::
:: check again later
::
++ store
|= rov=rove
^- [new-sub=(unit rove) (list sub-result)]
=/ new-rove=rove
?> ?=(%mult -.rov)
?: ?=(%mult -.vor) rov
?> ?=([* ~ ~] old-cach.rov)
=* one n.old-cach.rov
[%next [care.p.one case.mool.rov path.p.one] aeon.rov q.one]
[`new-rove ~]
::
:: send changes
::
++ respond
|= res=(map mood (unit (each cage lobe)))
^- [new-sub=(unit rove) (list sub-result)]
:- ~
?: ?=(%mult -.vor)
[%blas ~(key by res)]~
?> ?=([* ~ ~] res)
?~ q.n.res
[%blub ~]~
[%blab [p u.q]:n.res]~
::
:: no unknowns
::
++ complete
|= hav=(map (pair care path) cach)
?& ?=(^ hav)
(levy ~(tap by `(map (pair care path) cach)`hav) know)
==
::
:: know about file in cach
::
++ know |=([(pair care path) c=cach] ?=(^ c))
::
:: fill in the blanks
::
++ read-unknown
|= [=mool hav=(map (pair care path) cach)]
^- [_hav ford-cache]
=? hav ?=(~ hav)
%- malt ^- (list (pair (pair care path) cach))
%+ turn
~(tap in paths.mool)
|= [c=care p=path]
^- [[care path] cach]
[[c p] ~]
|- ^+ [hav fod.dom]
?~ hav [hav fod.dom]
=^ lef fod.dom $(hav l.hav)
=. l.hav lef
=^ rig fod.dom $(hav r.hav)
=. r.hav rig
=/ [[=care =path] =cach] n.hav
?^ cach
[hav fod.dom]
=^ q fod.dom (aver for care case.mool path)
=. q.n.hav q
[hav fod.dom]
--
::
%many
:_ fod.dom
=/ from-aeon (case-to-aeon from.moat.rov)
?~ from-aeon
:: haven't entered the relevant range, so do nothing
::
[`rov ~]
=/ to-aeon (case-to-aeon to.moat.rov)
=/ ver ?~(far %1 ver.u.far)
?~ to-aeon
:: we're in the middle of the range, so produce what we can,
:: but don't end the subscription
::
:: update "from" case to the aeon after now
::
=. from.moat.rov
[%ud +(let.dom)]
:- `rov
=/ new-lobes=(map path lobe)
(lobes-at-path:ze for let.dom path.moat.rov)
?: =(lobes.rov new-lobes)
:: if no changes, don't produce results
::
~
:: else changes, so produce them
::
[%bleb ver let.dom ?:(track.rov ~ `[u.from-aeon let.dom])]~
:: we're past the end of the range, so end subscription
::
:- ~
=/ new-lobes=(map path lobe)
(lobes-at-path:ze for u.to-aeon path.moat.rov)
:: if changed, give subscription result
::
=/ bleb=(list sub-result)
?: =(lobes.rov new-lobes)
~
[%bleb ver +(u.from-aeon) ?:(track.rov ~ `[u.from-aeon u.to-aeon])]~
:: end subscription
::
=/ blub=(list sub-result)
[%blub ~]~
(weld bleb blub)
==
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: This core has no additional state, and the distinction exists purely for
:: documentation. The overarching theme is that `++de` directly contains
:: logic for metadata about the desk, while `++ze` is composed primarily
:: of helper functions for manipulating the desk state (`++dome`) itself.
:: Functions include:
::
:: -- converting between cases, commit hashes, commits, content hashes,
:: and content
:: -- creating commits and content and adding them to the tree
:: -- finding which data needs to be sent over the network to keep the
:: other urbit up-to-date
:: -- reading from the file tree through different `++care` options
:: -- the `++me` core for merging.
::
:: The dome is composed of the following:
::
:: -- `ank` is the ankh, which is the file data itself. An ankh is both
:: a possible file and a possible directory. An ankh has both:
:: -- `fil`, a possible file, stored as both a cage and its hash
:: -- `dir`, a map of @ta to more ankhs.
:: -- `let` is the number of the most recent revision.
:: -- `hit` is a map of revision numbers to commit hashes.
:: -- `lab` is a map of labels to revision numbers.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::
::
:: Other utility functions
::
++ ze
|%
:: These convert between aeon (version number), tako (commit hash), yaki
:: (commit data structure), lobe (content hash), and blob (content).
::
:: XX the following are duplicated from the +state core
::
++ aeon-to-tako ~(got by hit.dom)
++ aeon-to-yaki |=(=aeon (tako-to-yaki (aeon-to-tako aeon)))
++ lobe-to-blob ~(got by lat.ran)
++ tako-to-yaki ~(got by hut.ran)
++ lobe-to-mark
|= a=lobe
=> (lobe-to-blob a)
?- -
%delta p.q
%direct p.q
==
::
:: Checks whether two pieces of data (either cages or lobes) are the same.
::
++ equivalent-data
|= [one=(each cage lobe) two=(each cage lobe)]
^- ?
?: ?=(%& -.one)
?: ?=(%& -.two)
=([p q.q]:p.one [p q.q]:p.two)
=(p.two (page-to-lobe [p q.q]:p.one))
?: ?=(%& -.two)
=(p.one (page-to-lobe [p q.q]:p.two))
=(p.one p.two)
::
:: Gets a map of the data at the given path and all children of it.
::
++ lobes-at-path
|= [for=(unit ship) yon=aeon pax=path]
^- (map path lobe)
?: =(0 yon) ~
:: we use %z for the check because it looks at all child paths.
?. |(?=(~ for) (may-read u.for %z yon pax)) ~
%- malt
%+ skim
%~ tap by
=< q
%- aeon-to-yaki
yon
|= [p=path q=lobe]
?| ?=(~ pax)
?& !?=(~ p)
=(-.pax -.p)
$(p +.p, pax +.pax)
== ==
::
:: Creates a nako of all the changes between a and b.
::
++ make-nako
|= [ver=@ud a=aeon b=aeon]
^- nako
:+ ?> (lte b let.dom)
|-
?: =(b let.dom)
hit.dom
$(hit.dom (~(del by hit.dom) let.dom), let.dom (dec let.dom))
b
?: =(0 b)
[~ ~]
(data-twixt-takos =(0 ver) (~(get by hit.dom) a) (aeon-to-tako b))
::
:: Traverse parentage and find all ancestor hashes
::
++ reachable-takos :: reachable
|= p=tako
^- (set tako)
~+
=| s=(set tako)
|- ^- (set tako)
=. s (~(put in s) p)
=+ y=(tako-to-yaki p)
|- ^- (set tako)
?~ p.y
s
?: (~(has in s) i.p.y)
$(p.y t.p.y)
=. s ^$(p i.p.y)
$(p.y t.p.y)
::
:: Gets the data between two commit hashes, assuming the first is an
:: ancestor of the second.
::
:: Get all the takos before `a`, then get all takos before `b` except the
:: ones we found before `a`. Then convert the takos to yakis and also get
:: all the data in all the yakis.
::
:: What happens if you run an %init merge on a desk that already
:: had a commit?
::
++ data-twixt-takos
|= [plops=? a=(unit tako) b=tako]
^- [(set yaki) (set plop)]
=+ old=?~(a ~ (reachable-takos u.a))
=/ yal=(set tako)
%- silt
%+ skip
~(tap in (reachable-takos b))
|=(tak=tako (~(has in old) tak))
:- (silt (turn ~(tap in yal) tako-to-yaki))
?. plops
~
(silt (turn ~(tap in (new-lobes (new-lobes ~ old) yal)) lobe-to-blob))
::
:: Get all the lobes that are referenced in `a` except those that are
:: already in `b`.
::
++ new-lobes :: object hash set
|= [b=(set lobe) a=(set tako)] :: that aren't in b
^- (set lobe)
%+ roll ~(tap in a)
|= [tak=tako bar=(set lobe)]
^- (set lobe)
=+ yak=(tako-to-yaki tak)
%+ roll ~(tap by q.yak)
=< .(far bar)
|= [[path lob=lobe] far=(set lobe)]
^- (set lobe)
?~ (~(has in b) lob) :: don't need
far
=+ gar=(lobe-to-blob lob)
?- -.gar
%direct (~(put in far) lob)
%delta (~(put in $(lob q.q.gar)) lob)
==
::
:: Probably can get rid of the cache checks because they happen in
:: ford
::
++ read-a
!.
|= [=aeon =path]
^- [(unit (unit (each cage lobe))) ford-cache]
?. =(aeon let.dom)
[~ fod.dom]
=/ cached=(unit [=vase *]) (~(get by vases.fod.dom) path)
?^ cached
:_(fod.dom [~ ~ %& %vase !>(vase.u.cached)])
=/ x (read-x aeon path)
?~ x
[~ fod.dom]
?~ u.x
[[~ ~] fod.dom]
:: should never happen at current aeon
?: ?=(%| -.u.u.x)
[~ fod.dom]
=^ =vase fod.dom
%- wrap:fusion
(build-file:(ford:fusion static-ford-args) path)
:_(fod.dom [~ ~ %& %vase !>(vase)])
::
++ read-b
!.
|= [=aeon =path]
^- [(unit (unit (each cage lobe))) ford-cache]
?. =(aeon let.dom)
[~ fod.dom]
?. ?=([@ ~] path)
[[~ ~] fod.dom]
=/ cached=(unit [=dais *]) (~(get by marks.fod.dom) i.path)
?^ cached
:_(fod.dom [~ ~ %& %dais !>(dais.u.cached)])
=^ =dais fod.dom
%- wrap:fusion
(get-mark:(ford:fusion static-ford-args) i.path)
:_(fod.dom [~ ~ %& %dais !>(dais)])
::
++ read-c
!.
|= [=aeon =path]
^- [(unit (unit (each cage lobe))) ford-cache]
?. =(aeon let.dom)
[~ fod.dom]
?. ?=([@ @ ~] path)
[[~ ~] fod.dom]
=/ cached=(unit [=tube *]) (~(get by casts.fod.dom) [i i.t]:path)
?^ cached
:_(fod.dom [~ ~ %& %tube !>(tube.u.cached)])
=^ =tube fod.dom
%- wrap:fusion
(get-cast:(ford:fusion static-ford-args) [i i.t]:path)
:_(fod.dom [~ ~ %& %tube !>(tube)])
::
:: Gets the permissions that apply to a particular node.
::
:: If the node has no permissions of its own, we use its parent's.
:: If no permissions have been set for the entire tree above the node,
:: we default to fully private (empty whitelist).
::
++ read-p
|= pax=path
^- (unit (unit (each cage lobe)))
=- [~ ~ %& %noun !>(-)]
:- (read-p-in pax per.red)
(read-p-in pax pew.red)
::
++ read-p-in
|= [pax=path pes=regs]
^- dict
=/ rul=(unit rule) (~(get by pes) pax)
?^ rul
:+ pax mod.u.rul
%- ~(rep in who.u.rul)
|= [w=whom out=(pair (set ship) (map @ta crew))]
?: ?=([%& @p] w)
[(~(put in p.out) +.w) q.out]
=/ cru=(unit crew) (~(get by cez.ruf) +.w)
?~ cru out
[p.out (~(put by q.out) +.w u.cru)]
?~ pax [/ %white ~ ~]
$(pax (scag (dec (lent pax)) `path`pax))
::
++ may-read
|= [who=ship car=care yon=aeon pax=path]
^- ?
?+ car
(allowed-by who pax per.red)
::
%p
=(who our)
::
?(%y %z)
=+ tak=(~(get by hit.dom) yon)
?~ tak |
=+ yak=(tako-to-yaki u.tak)
=+ len=(lent pax)
=- (levy ~(tap in -) |=(p=path (allowed-by who p per.red)))
%+ roll ~(tap in (~(del in ~(key by q.yak)) pax))
|= [p=path s=(set path)]
?. =(pax (scag len p)) s
%- ~(put in s)
?: ?=(%z car) p
(scag +(len) p)
==
::
++ may-write
|= [w=ship p=path]
(allowed-by w p pew.red)
::
++ allowed-by
|= [who=ship pax=path pes=regs]
^- ?
=/ rul=real rul:(read-p-in pax pes)
=/ in-list/?
?| (~(has in p.who.rul) who)
::
%- ~(rep by q.who.rul)
|= [[@ta cru=crew] out=_|]
?: out &
(~(has in cru) who)
==
?: =(%black mod.rul)
!in-list
in-list
:: +content-hash: get hash of contents (%cz hash)
::
++ content-hash
|= [=yaki pax=path]
^- @uvI
=+ len=(lent pax)
=/ descendants=(list (pair path lobe))
%+ turn
%+ skim ~(tap by (~(del by q.yaki) pax))
|= [paf=path lob=lobe]
=(pax (scag len paf))
|= [paf=path lob=lobe]
[(slag len paf) lob]
=+ us=(~(get by q.yaki) pax)
?: &(?=(~ descendants) ?=(~ us))
*@uvI
%+ roll
^- (list (pair path lobe))
[[~ ?~(us *lobe u.us)] descendants]
|=([[path lobe] @uvI] (shax (jam +<)))
:: +read-r: %x wrapped in a vase
::
++ read-r
|= [yon=aeon pax=path]
^- (unit (unit cage))
=/ x (read-x yon pax)
?~ x ~
?~ u.x [~ ~]
?> ?=(%& -.u.u.x)
``[p.p.u.u.x !>(q.p.u.u.x)]
:: +read-s: produce yaki or blob for given tako or lobe
::
++ read-s
|= [yon=aeon pax=path]
^- (unit (unit cage))
?. ?=([?(%yaki %blob %hash %cage %open %late %base) * *] pax)
`~
?- i.pax
%yaki
=/ yak=(unit yaki) (~(get by hut.ran) (slav %uv i.t.pax))
?~ yak
~
``yaki+[-:!>(*yaki) u.yak]
::
%blob
=/ bol=(unit blob) (~(get by lat.ran) (slav %uv i.t.pax))
?~ bol
~
``blob+[-:!>(*blob) u.bol]
::
%hash
=/ yak=(unit yaki) (~(get by hut.ran) (slav %uv i.t.pax))
?~ yak
~
``uvi+[-:!>(*@uvI) (content-hash u.yak /)]
::
%cage
:: should save ford cache
::
=/ =lobe (slav %uv i.t.pax)
=^ =page fod.dom
%- wrap:fusion
(lobe-to-page:(ford:fusion static-ford-args) lobe)
=^ =cage fod.dom
%- wrap:fusion
(page-to-cage:(ford:fusion static-ford-args) page)
``cage+[-:!>(*^cage) cage]
::
%open
``open+!>(prelude:(ford:fusion static-ford-args))
::
%late !! :: handled in +aver
%base
?> ?=(^ t.t.pax)
:^ ~ ~ %uvs !>
^- (list @uv)
=/ him (slav %p i.t.pax)
=/ other dom:((de our now ski hen ruf) him i.t.t.pax)
?: =(0 let.other)
~
=/ our-yaki (~(got by hut.ran) (~(got by hit.dom) yon))
=/ other-yaki (~(got by hut.ran) (~(got by hit.other) let.other))
%+ turn ~(tap in (find-merge-points other-yaki our-yaki))
|= =yaki
r.yaki
==
:: +read-t: produce the list of paths within a yaki with :pax as prefix
::
++ read-t
|= [yon=aeon pax=path]
^- (unit (unit [%file-list (hypo (list path))]))
:: if asked for version 0, produce an empty list of files
::
?: =(0 yon)
``[%file-list -:!>(*(list path)) *(list path)]
:: if asked for a future version, we don't have an answer
::
?~ tak=(~(get by hit.dom) yon)
~
:: look up the yaki snapshot based on the version
::
=/ yak=yaki (tako-to-yaki u.tak)
:: calculate the path length once outside the loop
::
=/ path-length (lent pax)
::
:^ ~ ~ %file-list
:- -:!>(*(list path))
^- (list path)
:: sort the matching paths alphabetically
::
=- (sort - aor)
:: traverse the filesystem, filtering for paths with :pax as prefix
::
%+ skim ~(tap in ~(key by q.yak))
|=(paf=path =(pax (scag path-length paf)))
::
:: Checks for existence of a node at an aeon.
::
:: This checks for existence of content at the node, and does *not* look
:: at any of its children.
::
++ read-u
|= [yon=aeon pax=path]
^- (unit (unit (each [%flag (hypo ?)] lobe)))
:: if asked for a future version, we don't have an answer
::
?~ tak=(~(get by hit.dom) yon)
~
:: look up the yaki snapshot based on the version
::
=/ yak=yaki (tako-to-yaki u.tak)
:: produce the result based on whether or not there's a file at :pax
::
``[%& %flag -:!>(*?) (~(has by q.yak) pax)]
::
:: Gets the dome (desk state) at a particular aeon.
::
:: For past aeons, we don't give an actual ankh in the dome, but the rest
:: of the data is legit. We also never send the mime cache over the wire.
::
++ read-v
|= [yon=aeon pax=path]
^- (unit (unit [%dome (hypo dome:clay)]))
?: (lth yon let.dom)
:* ~ ~ %dome -:!>(*dome:clay)
^- dome:clay
:* ank=`[[%ank-in-old-v-not-implemented *ankh] ~ ~]
let=yon
hit=(molt (skim ~(tap by hit.dom) |=([p=@ud *] (lte p yon))))
lab=(molt (skim ~(tap by lab.dom) |=([* p=@ud] (lte p yon))))
== ==
?: (gth yon let.dom)
~
``[%dome -:!>(*dome:clay) [ank let hit lab]:dom]
::
:: Gets all cases refering to the same revision as the given case.
::
:: For the %da case, we give just the canonical timestamp of the revision.
::
++ read-w
|= cas=case
^- (unit (unit (each cage lobe)))
=+ aey=(case-to-aeon cas)
?~ aey ~
=- [~ ~ %& %cass !>(-)]
^- cass
:- u.aey
?: =(0 u.aey) `@da`0
t:(aeon-to-yaki u.aey)
::
:: Get the data at a node.
::
:: If it's in our ankh (current state cache), we can just produce
:: the result. Otherwise, we've got to look up the node at the
:: aeon to get the content hash, use that to find the blob, and use
:: the blob to get the data. We also special-case the hoon mark
:: for bootstrapping purposes.
::
++ read-x
|= [yon=aeon pax=path]
^- (unit (unit (each cage lobe)))
?: =(0 yon)
[~ ~]
=+ tak=(~(get by hit.dom) yon)
?~ tak
~
?: &(?=(~ ref) =(yon let.dom))
:- ~
%+ bind
fil.ank:(descend-path:(zu ank.dom) pax)
|=(a=[p=lobe q=cage] [%& q.a])
=+ yak=(tako-to-yaki u.tak)
=+ lob=(~(get by q.yak) pax)
?~ lob
[~ ~]
=+ mar=(lobe-to-mark u.lob)
:: should convert any lobe to cage
::
?. ?=(%hoon mar)
[~ ~ %| u.lob]
:^ ~ ~ %&
:+ mar [%atom %t ~]
|- ^- @t :: (urge cord) would be faster
=+ bol=(lobe-to-blob u.lob)
?: ?=(%direct -.bol)
;;(@t q.q.bol)
?> ?=(%delta -.bol)
=+ txt=$(u.lob q.q.bol)
?> ?=(%txt-diff p.r.bol)
=+ dif=;;((urge cord) q.r.bol)
=, format
=+ pac=(of-wain (lurk:differ (to-wain (cat 3 txt '\0a')) dif))
?~ pac
''
(end 3 (dec (met 3 pac)) pac)
::
:: Gets an arch (directory listing) at a node.
::
++ read-y
|= [yon=aeon pax=path]
^- (unit (unit [%arch (hypo arch)]))
?: =(0 yon)
``[%arch -:!>(*arch) *arch]
=+ tak=(~(get by hit.dom) yon)
?~ tak
~
=+ yak=(tako-to-yaki u.tak)
=+ len=(lent pax)
:^ ~ ~ %arch
:: ~& cy+pax
:- -:!>(*arch)
^- arch
:- (~(get by q.yak) pax)
^- (map knot ~)
%- molt ^- (list (pair knot ~))
%+ turn
^- (list (pair path lobe))
%+ skim ~(tap by (~(del by q.yak) pax))
|= [paf=path lob=lobe]
=(pax (scag len paf))
|= [paf=path lob=lobe]
=+ pat=(slag len paf)
[?>(?=(^ pat) i.pat) ~]
::
:: Gets a recursive hash of a node and all its children.
::
++ read-z
|= [yon=aeon pax=path]
^- (unit (unit [%uvi (hypo @uvI)]))
?: =(0 yon)
``uvi+[-:!>(*@uvI) *@uvI]
=+ tak=(~(get by hit.dom) yon)
?~ tak
~
[~ ~ %uvi -:!>(*@uvI) (content-hash (tako-to-yaki u.tak) pax)]
::
:: Get a value at an aeon.
::
:: Value can be either null, meaning we don't have it yet, [null null],
:: meaning we know it doesn't exist, or [null null (each cage lobe)],
:: meaning we either have the value directly or a content hash of the
:: value.
::
++ read-at-aeon :: read-at-aeon:ze
|= [for=(unit ship) yon=aeon mun=mood] :: seek and read
^- [(unit (unit (each cage lobe))) ford-cache]
=* fod fod.dom
?. |(?=(~ for) (may-read u.for care.mun yon path.mun))
[~ fod]
:: virtualize to catch and produce deterministic failures
::
!.
=- ?:(?=(%& -<) p.- ((slog p.-) [[~ ~] fod]))
%- mule |.
?- care.mun
%d
:_ fod
:: XX this should only allow reads at the current date
::
?: !=(our her)
[~ ~]
?^ path.mun
~&(%no-cd-path [~ ~])
[~ ~ %& %noun !>(~(key by dos.rom.ruf))]
::
%a (read-a yon path.mun)
%b (read-b yon path.mun)
%c (read-c yon path.mun)
%p :_(fod (read-p path.mun))
%r :_(fod (bind (read-r yon path.mun) (lift |=(a=cage [%& a]))))
%s :_(fod (bind (read-s yon path.mun) (lift |=(a=cage [%& a]))))
%t :_(fod (bind (read-t yon path.mun) (lift |=(a=cage [%& a]))))
%u :_(fod (read-u yon path.mun))
%v :_(fod (bind (read-v yon path.mun) (lift |=(a=cage [%& a]))))
%w :_(fod (read-w case.mun))
%x :_(fod (read-x yon path.mun))
%y :_(fod (bind (read-y yon path.mun) (lift |=(a=cage [%& a]))))
%z :_(fod (bind (read-z yon path.mun) (lift |=(a=cage [%& a]))))
==
:: Traverse an ankh.
::
++ zu :: filesystem
|= ank=ankh :: filesystem state
=| ram=path :: reverse path into
|%
++ descend :: descend
|= lol=@ta
^+ +>
=+ you=(~(get by dir.ank) lol)
+>.$(ram [lol ram], ank ?~(you [~ ~] u.you))
::
++ descend-path :: descend recursively
|= way=path
^+ +>
?~(way +> $(way t.way, +> (descend i.way)))
--
--
--
--
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: section 4cA, filesystem vane
::
:: This is the arvo interface vane. Our formal state is a `++raft`, which
:: has five components:
::
:: -- `rom` is the state for all local desks.
:: -- `hoy` is the state for all foreign desks.
:: -- `ran` is the global, hash-addressed object store.
:: -- `mon` is the set of mount points in unix.
:: -- `hez` is the duct to the unix sync.
::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
=| :: instrument state
$: ver=%6 :: vane version
ruf=raft :: revision tree
== ::
|= [our=ship now=@da eny=@uvJ rof=roof] :: current invocation
=* ski (en-sley rof)
|% ::
++ call :: handle request
|= $: hen=duct
dud=(unit goof)
type=*
wrapped-task=(hobo task:able)
==
^- [(list move) _..^$]
::
=/ req=task:able ((harden task:able) wrapped-task)
::
:: error notifications "downcast" to %crud
::
=? req ?=(^ dud)
~| %crud-in-crud
?< ?=(%crud -.req)
[%crud -.req tang.u.dud]
::
?- -.req
%boat
:_ ..^$
[hen %give %hill (turn ~(tap by mon.ruf) head)]~
::
%cred
=. cez.ruf
?~ cew.req (~(del by cez.ruf) nom.req)
(~(put by cez.ruf) nom.req cew.req)
:: wake all desks, a request may have been affected.
=| mos=(list move)
=/ des ~(tap in ~(key by dos.rom.ruf))
|-
?~ des [[[hen %give %done ~] mos] ..^^$]
=/ den ((de our now ski hen ruf) our i.des)
=^ mor ruf
=< abet:wake
?: ?=(^ cew.req) den
(forget-crew:den nom.req)
$(des t.des, mos (weld mos mor))
::
%crew
[[hen %give %cruz cez.ruf]~ ..^$]
::
%crow
=/ des ~(tap by dos.rom.ruf)
=| rus=(map desk [r=regs w=regs])
|^
?~ des [[hen %give %croz rus]~ ..^^$]
=+ per=(filter-rules per.q.i.des)
=+ pew=(filter-rules pew.q.i.des)
=? rus |(?=(^ per) ?=(^ pew))
(~(put by rus) p.i.des per pew)
$(des t.des)
::
++ filter-rules
|= pes=regs
^+ pes
=- (~(gas in *regs) -)
%+ skim ~(tap by pes)
|= [p=path r=rule]
(~(has in who.r) |+nom.req)
--
::
%crud
[[[hen %slip %d %flog req] ~] ..^$]
::
%drop
~& %clay-idle
[~ ..^$]
::
%info
?: ?=(%| -.dit.req)
~| %labelling-not-implemented
!!
=/ [deletes=(set path) changes=(map path cage)]
=/ =soba p.dit.req
=| deletes=(set path)
=| changes=(map path cage)
|- ^+ [deletes changes]
?~ soba
[deletes changes]
?- -.q.i.soba
%del $(soba t.soba, deletes (~(put in deletes) p.i.soba))
%ins $(soba t.soba, changes (~(put by changes) [p p.q]:i.soba))
%mut $(soba t.soba, changes (~(put by changes) [p p.q]:i.soba))
%dif ~|(%dif-not-implemented !!)
==
=^ mos ruf
=/ den ((de our now ski hen ruf) our des.req)
abet:(info:den deletes changes)
[mos ..^$]
::
%init
[~ ..^$(hun.rom.ruf hen)]
::
%into
=. hez.ruf `hen
=+ bem=(~(get by mon.ruf) des.req)
?: &(?=(~ bem) !=(%$ des.req))
~|([%bad-mount-point-from-unix des.req] !!)
=/ bem=beam
?^ bem
u.bem
[[our %home %ud 1] ~]
=/ dos (~(get by dos.rom.ruf) q.bem)
?~ dos
!! :: fire next in queue
=^ mos ruf
=/ den ((de our now ski hen ruf) our q.bem)
abet:(into:den s.bem all.req fis.req)
[mos ..^$]
::
%merg :: direct state up
?: =(%$ des.req)
~&(%merg-no-desk !!)
=^ mos ruf
=/ den ((de our now ski hen ruf) our des.req)
abet:(start-merge:den her.req dem.req cas.req how.req)
[mos ..^$]
::
%mont
=. hez.ruf ?^(hez.ruf hez.ruf `[[%$ %sync ~] ~])
=^ mos ruf
=/ den ((de our now ski hen ruf) p.bem.req q.bem.req)
abet:(mount:den pot.req r.bem.req s.bem.req)
[mos ..^$]
::
%dirk
?~ hez.ruf
~& %no-sync-duct
[~ ..^$]
?. (~(has by mon.ruf) des.req)
~& [%not-mounted des.req]
[~ ..^$]
[~[[u.hez.ruf %give %dirk des.req]] ..^$]
::
%ogre
?~ hez.ruf
~& %no-sync-duct
[~ ..^$]
=* pot pot.req
?@ pot
?. (~(has by mon.ruf) pot)
~& [%not-mounted pot]
[~ ..^$]
:_ ..^$(mon.ruf (~(del by mon.ruf) pot))
[u.hez.ruf %give %ogre pot]~
:_ %_ ..^$
mon.ruf
%- molt
%+ skip ~(tap by mon.ruf)
(corl (cury test pot) tail)
==
%+ turn
(skim ~(tap by mon.ruf) (corl (cury test pot) tail))
|= [pon=term bem=beam]
[u.hez.ruf %give %ogre pon]
::
%park
=^ mos ruf
=/ den ((de our now ski hen ruf) our des.req)
abet:(park:den | [yok ran]:req)
[mos ..^$]
::
%pork
=/ [syd=desk =yoki] (need pud.ruf)
=. pud.ruf ~
=^ mos ruf
=/ den ((de our now ski hen ruf) our syd)
abet:(park:den & yoki *rang)
[mos ..^$]
::
%perm
=^ mos ruf
=/ den ((de our now ski hen ruf) our des.req)
abet:(perm:den pax.req rit.req)
[mos ..^$]
::
%trim [~ ..^$]
::
%vega
:: wake all desks, then send pending notifications
::
=^ wake-moves ..^$
=/ desks=(list [=ship =desk])
%+ welp
(turn ~(tap by dos.rom.ruf) |=([=desk *] [our desk]))
%- zing
%+ turn ~(tap by hoy.ruf)
|= [=ship =rung]
%+ turn ~(tap by rus.rung)
|= [=desk *]
[ship desk]
|- ^+ [*(list move) ..^^$]
?~ desks
[~ ..^^$]
=^ moves-1 ..^^$ $(desks t.desks)
=^ moves-2 ruf abet:wake:((de our now ski hen ruf) [ship desk]:i.desks)
[(weld moves-1 moves-2) ..^^$]
[wake-moves ..^$]
::
?(%warp %werp)
:: capture whether this read is on behalf of another ship
:: for permissions enforcement
::
=^ for req
?: ?=(%warp -.req)
[~ req]
:: ?: =(our who.req)
:: [~ [%warp wer.req rif.req]]
:- ?:(=(our who.req) ~ `[who.req -.rif.req])
[%warp wer.req riff.rif.req]
::
?> ?=(%warp -.req)
=* rif rif.req
=^ mos ruf
=/ den ((de our now ski hen ruf) wer.req p.rif)
=< abet
?~ q.rif
cancel-request:den
(start-request:den for u.q.rif)
[mos ..^$]
::
%plea
=* her ship.req
=* pax path.plea.req
=* res payload.plea.req
::
?: ?=([%backfill *] pax)
=+ ;;(=fill res)
=^ mos ruf
=/ den ((de our now ski hen ruf) our desk.fill)
abet:(give-backfill:den lobe.fill)
[[[hen %give %done ~] mos] ..^$]
?> ?=([%question *] pax)
=+ ryf=;;(riff-any res)
:_ ..^$
:~ [hen %give %done ~]
=/ =wire
[%foreign-warp (scot %p her) t.pax]
[hen %pass wire %c %werp her our ryf]
==
==
::
++ load
|= old=[%6 raft]
..^$(ruf +.old)
::
++ scry :: inspect
|= [lyc=gang cyr=term bem=beam]
^- (unit (unit cage))
=* ren cyr
=/ why=shop &/p.bem
=* syd q.bem
=/ lot=coin $/r.bem
=* tyl s.bem
::
?. ?=(%& -.why) ~
=* his p.why
?: &(=(ren %$) =(tyl /whey))
``mass+!>(whey)
:: ~& scry+[ren `path`[(scot %p his) syd ~(rent co lot) tyl]]
:: =- ~& %scry-done -
=+ luk=?.(?=(%$ -.lot) ~ ((soft case) p.lot))
?~ luk [~ ~]
?: =(%$ ren)
[~ ~]
=+ run=((soft care) ren)
?~ run [~ ~]
::TODO if it ever gets filled properly, pass in the full fur.
::
=/ for=(unit ship) ?~(lyc ~ ?~(u.lyc ~ `n.u.lyc))
=/ den ((de our now ski [/scryduct ~] ruf) his syd)
=/ result (mule |.(-:(aver:den for u.run u.luk tyl)))
?: ?=(%| -.result)
%- (slog >%clay-scry-fail< p.result)
~
?~ p.result ~
?~ u.p.result [~ ~]
:: should convert %| case to cage
::
?: ?=(%& -.u.u.p.result) ``p.u.u.p.result
~
::
:: We clear the ford cache by replacing it with its bunt as a literal.
:: This nests within +ford-cache without reference to +type, +hoon, or
:: anything else in the sample of cache objects. Otherwise we would be
:: contravariant in the those types, which makes them harder to change.
::
++ stay
:- ver
%= ruf
dos.rom
%- ~(run by dos.rom.ruf)
|= =dojo
dojo(fod.dom [~ ~ ~])
::
hoy
%- ~(run by hoy.ruf)
|= =rung
%= rung
rus
%- ~(run by rus.rung)
|= =rede
rede(fod.dom [~ ~ ~])
==
==
::
++ take :: accept response
|= [tea=wire hen=duct dud=(unit goof) hin=(hypo sign)]
^+ [*(list move) ..^$]
?^ dud
~|(%clay-take-dud (mean tang.u.dud))
::
?: ?=([%merge @ @ @ @ ~] tea)
?> ?=(%writ +<.q.hin)
=* syd i.t.tea
=/ ali-ship (slav %p i.t.t.tea)
=* ali-desk i.t.t.t.tea
=/ germ (germ i.t.t.t.t.tea)
=^ mos ruf
=/ den ((de our now ski hen ruf) our i.t.tea)
abet:(merge:den ali-ship ali-desk germ p.q.hin)
[mos ..^$]
::
?: ?=([%foreign-warp *] tea)
?> ?=(%writ +<.q.hin)
:_ ..^$
[hen %give %boon `(unit rand)`(bind `riot`p.q.hin rant-to-rand)]~
::
?: ?=([%warp-index @ @ @ ~] tea)
?+ +<.q.hin ~| %clay-warp-index-strange !!
%done
?~ error.q.hin
[~ ..^$]
:: TODO better error handling
::
~& %clay-take-warp-index-error^our^tea^tag.u.error.q.hin
%- (slog tang.u.error.q.hin)
[~ ..^$]
::
%lost
~| %clay-take-lost^our
:: TODO better error handling
!!
::
%boon
=+ ;; res=(unit rand) payload.q.hin
::
=/ her=ship (slav %p i.t.tea)
=/ =desk (slav %tas i.t.t.tea)
=/ index=@ud (slav %ud i.t.t.t.tea)
::
=^ mos ruf
=/ den ((de our now ski hen ruf) her desk)
abet:(take-foreign-answer:den index res)
[mos ..^$]
==
::
?: ?=([%back-index @ @ @ ~] tea)
?+ +<.q.hin ~| %clay-backfill-index-strange !!
%done
?~ error.q.hin
[~ ..^$]
:: TODO better error handling
::
~& %clay-take-backfill-index-error^our^tea^tag.u.error.q.hin
%- (slog tang.u.error.q.hin)
[~ ..^$]
::
%lost
~| %clay-take-backfill-lost^our
:: TODO better error handling
!!
::
%boon
=+ ;; =blob payload.q.hin
::
=/ her=ship (slav %p i.t.tea)
=/ =desk (slav %tas i.t.t.tea)
=/ index=@ud (slav %ud i.t.t.t.tea)
::
=^ mos ruf
=/ den ((de our now ski hen ruf) her desk)
abet:abet:(take-backfill:(foreign-update:den index) blob)
[mos ..^$]
==
::
?: ?=([%sinks ~] tea)
?> ?=(%public-keys +<.q.hin)
?. ?=(%breach -.public-keys-result.q.hin)
[~ ..^$]
=/ who who.public-keys-result.q.hin
?: =(our who)
[~ ..^$]
:: Cancel subscriptions
::
=/ foreign-desk=(unit rung)
(~(get by hoy.ruf) who)
?~ foreign-desk
[~ ..^$]
=/ cancel-ducts=(list duct)
%- zing ^- (list (list duct))
%+ turn ~(tap by rus.u.foreign-desk)
|= [=desk =rede]
^- (list duct) %- zing ^- (list (list duct))
%+ turn ~(tap by qyx.rede)
|= [=wove ducts=(set duct)]
:: ~& [%sunk-wove desk (print-wove wove) ducts]
~(tap in ducts)
=/ cancel-moves=(list move)
%+ turn cancel-ducts
|=(=duct [duct %slip %b %drip !>([%writ ~])])
:: delete local state of foreign desk
::
=. hoy.ruf (~(del by hoy.ruf) who)
[cancel-moves ..^$]
::
?- -.+.q.hin
%public-keys ~|([%public-keys-raw tea] !!)
%crud
[[[hen %slip %d %flog +.q.hin] ~] ..^$]
::
%mere
?: ?=(%& -.p.+.q.hin)
~& 'initial merge succeeded'
[~ ..^$]
~> %slog.
:^ 0 %rose [" " "[" "]"]
:^ leaf+"initial merge failed"
leaf+"my most sincere apologies"
>p.p.p.+.q.hin<
q.p.p.+.q.hin
[~ ..^$]
::
%note [[hen %give +.q.hin]~ ..^$]
%wake
:: TODO: handle behn errors
::
?^ error.q.hin
[[hen %slip %d %flog %crud %wake u.error.q.hin]~ ..^$]
::
?. ?=([%tyme @ @ ~] tea)
~& [%clay-strange-timer tea]
[~ ..^$]
=/ her (slav %p i.t.tea)
=/ syd (slav %tas i.t.t.tea)
=^ mos ruf
=/ den ((de our now ski hen ruf) her syd)
abet:wake:den
[mos ..^$]
::
:: handled in the wire dispatcher
::
%boon !!
%lost !!
%writ
%- (slog leaf+"clay: strange writ (expected on upgrade to Fusion)" ~)
[~ ..^$]
::
%done
?~ error=error.q.hin
[~ ..^$]
%- (slog >%clay-lost< >tag.u.error< tang.u.error)
[~ ..^$]
==
::
++ rant-to-rand
|= rant
^- rand
[p q [p q.q]:r]
:: +whey: produce memory usage report
::
++ whey
^- (list mass)
=/ domestic
%+ turn (sort ~(tap by dos.rom.ruf) aor)
|= [=desk =dojo]
:+ desk %|
:~ ankh+&+ank.dom.dojo
mime+&+mim.dom.dojo
ford-vases+&+vases.fod.dom.dojo
ford-marks+&+marks.fod.dom.dojo
ford-casts+&+casts.fod.dom.dojo
==
:~ domestic+|+domestic
foreign+&+hoy.ruf
:+ %object-store %|
:~ commits+&+hut.ran.ruf
blobs+&+lat.ran.ruf
==
==
--
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