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| author | Ludovic Courtès <ludo@gnu.org> | 2014-02-21 23:03:19 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2014-02-21 23:49:52 +0100 |
| commit | 36bbbbd150f75c2a6dab2473643c3723e606e41d (patch) | |
| tree | 3824cacfcc1762e8ca9cc3c1ccda5e81d722ae79 /doc/guix.texi | |
| parent | 3140f2df423d1235c3766e3478a429ac89d882ed (diff) | |
| download | guix-36bbbbd150f75c2a6dab2473643c3723e606e41d.tar.gz | |
derivations: Add support for recursive fixed-output derivations.
* guix/derivations.scm (<derivation-output>): Add 'recursive?' field.
Adjust 'make-derivation-output' callers.
(%read-derivation) <fixed-output>: When HASH-ALGO starts with 'r:',
set the 'recursive?' field and drop 'r:' from the hash algo name.
(write-derivation)[write-output]: Write the algo as 'r:HASH-ALGO' when
the RECURSIVE? field is set.
(derivation-hash) <fixed-output>: Prepend "r:" when RECURSIVE? is set.
(fixed-output-path): New procedure.
(derivation): Add #:recursive? parameter. Use 'fixed-output-path' to
compute the output file name of a fixed output derivation.
(build-expression->derivation): Add #:recursive? parameter. Pass it
to 'derivation'.
* tests/derivations.scm ("fixed-output derivation, recursive",
"build-expression->derivation produces recursive fixed-output",
"build-expression->derivation uses recursive fixed-output"): New
tests.
* doc/guix.texi (Derivations): Document #:recursive? for 'derivation'.
Add #:recursive? for 'build-expression->derivation'.
Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index ce011959ad..b2733fbec9 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -1478,7 +1478,7 @@ a derivation is the @code{derivation} procedure: @deffn {Scheme Procedure} derivation @var{store} @var{name} @var{builder} @ @var{args} [#:outputs '("out")] [#:hash #f] [#:hash-algo #f] @ - [#:hash-mode #f] [#:inputs '()] [#:env-vars '()] @ + [#:recursive? #f] [#:hash-mode #f] [#:inputs '()] [#:env-vars '()] @ [#:system (%current-system)] [#:references-graphs #f] @ [#:local-build? #f] Build a derivation with the given arguments, and return the resulting @@ -1486,7 +1486,10 @@ Build a derivation with the given arguments, and return the resulting When @var{hash}, @var{hash-algo}, and @var{hash-mode} are given, a @dfn{fixed-output derivation} is created---i.e., one whose result is -known in advance, such as a file download. +known in advance, such as a file download. If, in addition, +@var{recursive?} is true, then that fixed output may be an executable +file or a directory and @var{hash} must be the hash of an archive +containing this output. When @var{references-graphs} is true, it must be a list of file name/store path pairs. In that case, the reference graph of each store @@ -1526,7 +1529,7 @@ the caller to directly pass a Guile expression as the build script: @var{name} @var{exp} @ [#:system (%current-system)] [#:inputs '()] @ [#:outputs '("out")] [#:hash #f] [#:hash-algo #f] @ - [#:env-vars '()] [#:modules '()] @ + [#:recursive? #f] [#:env-vars '()] [#:modules '()] @ [#:references-graphs #f] [#:local-build? #f] [#:guile-for-build #f] Return a derivation that executes Scheme expression @var{exp} as a builder for derivation @var{name}. @var{inputs} must be a list of |