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Add derivation-prerequisites' and derivation-prerequisites-to-build'.

* guix/derivations.scm (derivation-prerequisites,
  derivation-prerequisites-to-build): New procedures.

* tests/derivations.scm ("build-expression->derivation and
  derivation-prerequisites", "build-expression->derivation and
  derivation-prerequisites-to-build"): New tests.
This commit is contained in:
Ludovic Courtès
2012-07-01 00:37:03 +02:00
parent 31ef99a8a5
commit 9a20830e57
2 changed files with 60 additions and 2 deletions

View File

@@ -172,7 +172,16 @@
(and (valid-path? %store p)
(file-exists? (string-append p "/good")))))))
(test-skip (if (%guile-for-build) 0 4))
(test-skip (if (%guile-for-build) 0 6))
(test-assert "build-expression->derivation and derivation-prerequisites"
(let-values (((drv-path drv)
(build-expression->derivation %store "fail" (%current-system)
#f '())))
(any (match-lambda
(($ <derivation-input> path)
(string=? path (%guile-for-build))))
(derivation-prerequisites drv))))
(test-assert "build-expression->derivation without inputs"
(let* ((builder '(begin
@@ -188,6 +197,14 @@
(equal? '(hello guix)
(call-with-input-file (string-append p "/test") read))))))
(test-assert "build-expression->derivation and derivation-prerequisites-to-build"
(let-values (((drv-path drv)
(build-expression->derivation %store "fail" (%current-system)
#f '())))
;; The only direct dependency is (%guile-for-build) and it's already
;; built.
(null? (derivation-prerequisites-to-build %store drv))))
(test-assert "build-expression->derivation with expression returning #f"
(let* ((builder '(begin
(mkdir %output)