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derivations: Restore UTF-8 encoding of build scripts.

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Reported by Mark H Weaver <mhw@netris.org>
at <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00457.html>.

* guix/derivations.scm (build-expression->derivation): Use a string
output port for the expression.  This reverts part of
2dce88d5bb.
* tests/derivations.scm ("build-expression->derivation and builder
encoding"): New test.
This commit is contained in:
Ludovic Courtès 2017-04-21 22:43:28 +02:00
parent 0a3bed8819
commit 9231ef12f2
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GPG key ID: 090B11993D9AEBB5
2 changed files with 17 additions and 6 deletions
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10
guix/derivations.scm
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@ -1238,16 +1238,15 @@ ALLOWED-REFERENCES, DISALLOWED-REFERENCES, LOCAL-BUILD?, and SUBSTITUTABLE?."
;; Guile sets it, but remove it to avoid conflicts when
;; building Guile-using packages.
(unsetenv "LD_LIBRARY_PATH")))
(builder (add-data-to-store store
(builder (add-text-to-store store
(string-append name "-guile-builder")
;; Explicitly use UTF-8 for determinism,
;; and also because UTF-8 output is faster.
(with-fluids ((%default-port-encoding
"UTF-8"))
(call-with-values
open-bytevector-output-port
(lambda (port get-bv)
(call-with-output-string
(lambda (port)
(write prologue port)
(write
`(exit
@ -1255,8 +1254,7 @@ ALLOWED-REFERENCES, DISALLOWED-REFERENCES, LOCAL-BUILD?, and SUBSTITUTABLE?."
((_ ...)
(remove module-form? exp))
(_ `(,exp))))
port)
(get-bv))))
port))))
;; The references don't really matter
;; since the builder is always used in

13
tests/derivations.scm
View file

@ -701,6 +701,19 @@
#:modules '((guix module that
does not exist)))))
(test-equal "build-expression->derivation and builder encoding"
'("UTF-8" #t)
(let* ((exp '(λ (α) (+ α 1)))
(drv (build-expression->derivation %store "foo" exp)))
(match (derivation-builder-arguments drv)
((... builder)
(call-with-input-file builder
(lambda (port)
(list (port-encoding port)
(->bool
(string-contains (get-string-all port)
"(λ (α) (+ α 1))")))))))))
(test-assert "build-expression->derivation and derivation-prerequisites"
(let ((drv (build-expression->derivation %store "fail" #f)))
(any (match-lambda