urbit/pkg/arvo/ted/diff.hoon
fang 27d6fc7597
zuse, clay, various: unflop the spur in beams
Unflops the spur in +en-beam, +de-beam, and everything that calls either
of those, or works with the consequences of their output.

This includes clay's interface for mounting and unmounting, which now
no longer expects the arguments to contain an old-style spur.
2020-11-24 15:44:25 +01:00

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/- spider
/+ strandio
=, strand=strand:spider
^- thread:spider
|= arg=vase
=/ m (strand ,vase)
^- form:m
|^
=+ !<([=a=path =b=path ~] arg)
=/ a-mark=mark -:(flop a-path)
=/ b-mark=mark -:(flop b-path)
?. =(a-mark b-mark)
(strand-fail:strandio %files-not-same-type ~)
=/ a-beam (need (de-beam:format a-path))
;< =a=cage bind:m (get-file a-path)
;< =b=cage bind:m (get-file b-path)
;< =dais:clay bind:m (build-mark:strandio -.a-beam a-mark)
(pure:m (~(diff dais q.a-cage) q.b-cage))
::
++ get-file
|= =path
=/ m (strand ,cage)
^- form:m
=/ beam (need (de-beam:format path))
;< =riot:clay bind:m
(warp:strandio p.beam q.beam ~ %sing %x r.beam s.beam)
?~ riot
(strand-fail:strandio %file-not-found >path< ~)
(pure:m r.u.riot)
--