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gexp: Add 'local-file'.

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* guix/gexp.scm (<local-file>): New record type.
  (local-file): New procedure.
  (local-file-compiler): New compiler.
  (gexp->sexp) <struct? thing>: Handle the case where 'lower' returns a
  file name.
  (text-file*): Update docstring.local-file doc
* tests/gexp.scm ("one local file", "gexp->derivation, local-file"): New
  tests.
* doc/guix.texi (G-Expressions): Mention local files early.  Document
  'local-file'.  Update 'text-file*' documentation.
This commit is contained in:
Ludovic Courtès
2015-03-28 21:26:33 +01:00
parent b39fc6f7bc
commit d9ae938f2c
3 changed files with 90 additions and 7 deletions
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tests/gexp.scm
+26
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@@ -97,6 +97,18 @@
%store (package-source coreutils))))
(gexp->sexp* exp)))))
(test-assert "one local file"
(let* ((file (search-path %load-path "guix.scm"))
(local (local-file file))
(exp (gexp (display (ungexp local))))
(intd (add-to-store %store (basename file) #t
"sha256" file)))
(and (gexp? exp)
(match (gexp-inputs exp)
(((x "out"))
(eq? x local)))
(equal? `(display ,intd) (gexp->sexp* exp)))))
(test-assert "same input twice"
(let ((exp (gexp (begin
(display (ungexp coreutils))
@@ -336,6 +348,20 @@
(mlet %store-monad ((drv mdrv))
(return (string=? system (derivation-system drv))))))
(test-assertm "gexp->derivation, local-file"
(mlet* %store-monad ((file -> (search-path %load-path "guix.scm"))
(intd (interned-file file))
(local -> (local-file file))
(exp -> (gexp (begin
(stat (ungexp local))
(symlink (ungexp local)
(ungexp output)))))
(drv (gexp->derivation "local-file" exp)))
(mbegin %store-monad
(built-derivations (list drv))
(return (string=? (readlink (derivation->output-path drv))
intd)))))
(test-assertm "gexp->derivation, cross-compilation"
(mlet* %store-monad ((target -> "mips64el-linux")
(exp -> (gexp (list (ungexp coreutils)