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6 commits

Author SHA1 Message Date
Ludovic Courtès
6c9e7b2bea build: Better reject systems where the shebang would be too long. 
* tests/gexp.scm (shebang): Add "#!".
 2014-07-25 00:26:29 +02:00
Ludovic Courtès
2cf0ea0dbb gexp: Gracefully handle printing of gexps with spliced references. 
* guix/gexp.scm (write-gexp): Wrap 'write' call in
  'false-if-exception'.
* tests/gexp.scm ("printer", "printer vs. ungexp-splicing"): New tests.
 2014-07-17 15:40:06 +02:00
Ludovic Courtès
5d0984595c gexp: Resolve the default system at '>>=' time. 
Partly fixes <http://bugs.gnu.org/18002>.
Reported by David Thompson <dthompson2@worcester.edu>.

* guix/gexp.scm (gexp->derivation): Change #:system to default #f.
  Use (%current-system) from within the 'mlet*'.
* tests/gexp.scm ("gexp->derivation, default system"): New test.
 2014-07-12 23:17:53 +02:00
Ludovic Courtès
c17b5ab4db tests: Skip tests that would hit the shebang length limitation. 
* tests/gexp.scm (shebang): New variable.
  Skip "gexp->script" when SHEBANG is longer than 127 chars.
* guix/gexp.scm (gexp->script): Add comment on the issue.
 2014-06-04 18:15:50 +02:00
Ludovic Courtès
79c0c8cdf7 gexp: Add support for 'origin?' objects in 'ungexp' forms. 
* guix/gexp.scm (lower-inputs, gexp-inputs, gexp->sexp,
  canonicalize-reference): Add 'origin?' case.
* guix/monads.scm (origin->derivation): New procedure.
* tests/gexp.scm ("one input origin"): New test.
 2014-05-01 22:31:36 +02:00
Ludovic Courtès
21b679f694 Add (guix gexp). 
* guix/gexp.scm: New file.
* tests/gexp.scm: New file.
* Makefile.am (MODULES): Add guix/gexp.scm.
  (SCM_TESTS): Add tests/gexp.scm.
* doc/guix.texi (Derivations): Add #:inputs in 'derivation' example.
  Mark 'build-expression->derivation' as deprecated, refer to
  "G-Expressions".  Remove paragraph about code strata.
  (G-Expressions): New node.
 2014-04-28 23:24:17 +02:00