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https://github.com/urbit/shrub.git
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153 lines
3.2 KiB
Plaintext
153 lines
3.2 KiB
Plaintext
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:: group-store: data store for groups of ships
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::
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/- *group-store
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|%
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+$ move [bone [%diff diff]]
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::
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+$ state
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$% [%0 state-zero]
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==
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::
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+$ state-zero
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$: =groups
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==
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::
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+$ diff
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$% [%group-update group-update]
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[%group-initial groups]
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==
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--
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::
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|_ [bol=bowl:gall state]
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::
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++ this .
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::
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++ prep
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|= old=(unit state)
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^- (quip move _this)
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?~ old
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[~ this]
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[~ this(+<+ u.old)]
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::
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++ peek-x
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|= pax=path
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^- (unit (unit [%noun (unit group)]))
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?~ pax
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[~ ~ %noun ~]
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=/ grp=(unit group) (~(get by groups) pax)
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[~ ~ %noun grp]
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::
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++ peer-all
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|= pax=path
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^- (quip move _this)
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?. =(src.bol our.bol) !!
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:: we now proxy all events to this path
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:_ this
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[ost.bol %diff %group-initial groups]~
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::
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++ peer-keys
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|= pax=path
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^- (quip move _this)
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?. =(src.bol our.bol) !!
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:: we send the list of keys then send events when they change
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:_ this
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[ost.bol %diff %group-update [%keys ~(key by groups)]]~
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::
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++ peer-group
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|= pax=path
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^- (quip move _this)
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?. =(src.bol our.bol) !!
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=/ grp=(unit group) (~(get by groups) pax)
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?~ grp !!
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:_ this
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[ost.bol %diff %group-update [%path u.grp pax]]~
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::
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++ poke-group-action
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|= action=group-action
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^- (quip move _this)
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?. =(src.bol our.bol)
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[~ this]
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?- -.action
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%add (handle-add action)
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%remove (handle-remove action)
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%bundle (handle-bundle action)
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%unbundle (handle-unbundle action)
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==
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::
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++ handle-add
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|= act=group-action
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^- (quip move _this)
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?> ?=(%add -.act)
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?~ pax.act
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[~ this]
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?. (~(has by groups) pax.act)
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[~ this]
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=/ members=group (~(got by groups) pax.act)
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=. members (~(uni in members) members.act)
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?: =(members (~(got by groups) pax.act))
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[~ this]
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:- (send-diff pax.act act)
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this(groups (~(put by groups) pax.act members))
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::
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++ handle-remove
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|= act=group-action
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^- (quip move _this)
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?> ?=(%remove -.act)
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?~ pax.act
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[~ this]
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?. (~(has by groups) pax.act)
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[~ this]
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=/ members (~(got by groups) pax.act)
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=. members (~(dif in members) members.act)
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?: =(members (~(got by groups) pax.act))
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[~ this]
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:- (send-diff pax.act act)
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this(groups (~(put by groups) pax.act members))
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::
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++ handle-bundle
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|= act=group-action
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^- (quip move _this)
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?> ?=(%bundle -.act)
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?~ pax.act
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[~ this]
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?: (~(has by groups) pax.act)
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[~ this]
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:- (send-diff pax.act act)
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this(groups (~(put by groups) pax.act *group))
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::
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++ handle-unbundle
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|= act=group-action
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^- (quip move _this)
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?> ?=(%unbundle -.act)
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?~ pax.act
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[~ this]
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?. (~(has by groups) pax.act)
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[~ this]
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:- (send-diff pax.act act)
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this(groups (~(del by groups) pax.act))
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::
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++ send-diff
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|= [pax=path action=group-action]
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^- (list move)
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;: weld
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^- (list move)
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%+ turn (prey:pubsub:userlib /all bol)
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|= [=bone *]
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[bone %diff %group-update action]
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::
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^- (list move)
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%+ turn (prey:pubsub:userlib [%group pax] bol)
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|= [=bone *]
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[bone %diff %group-update action]
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::
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^- (list move)
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?. |(=(%bundle -.action) =(%unbundle -.action))
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~
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%+ turn (prey:pubsub:userlib /keys bol)
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|= [=bone *]
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[bone %diff %group-update action]
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==
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::
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--
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