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authorMaxime Devos <maximedevos@telenet.be>2021-05-31 18:36:09 +0200
committerLudovic Courtès <ludo@gnu.org>2021-06-04 22:34:26 +0200
commit5378edeab4e90f9dec6ae9bc5706a4ac790294b7 (patch)
treebaed37d75161af23a14feb08c54403c7e8fc77cb /tests
parent8b0899963faa3b04ed09192ac58db0a711c6a654 (diff)
utils: Define ‘search-input-file’ procedure.
The procedure ‘which’ from (guix build utils) is used for two different purposes: 1. for finding the absolute file name of a binary that needs to run during the build process 2. for finding the absolute file name of a binary, for the target system (as in --target=TARGET), e.g. for substituting sh->/gnu/store/.../bin/sh, python->/gnu/store/.../bin/python. When compiling natively (target=#f in Guix parlance), this is perfectly fine. However, when cross-compiling, there is a problem. "which" looks in $PATH for binaries. That's good for purpose (1), but incorrect for (2), as the $PATH contains binaries from native-inputs instead of inputs. This commit defines a ‘search-input-file’ procedure. It functions like 'which', but instead of searching in $PATH, it searches in the 'inputs' of the build phase, which must be passed to ‘search-input-file’ as an argument. Also, the file name must include "bin/" or "sbin/" as appropriate. * guix/build/utils.scm (search-input-file): New procedure. * tests/build-utils.scm ("search-input-file: exception if not found") ("search-input-file: can find if existent"): Test it. * doc/guix.texi (File Search): Document it. Partially-Fixes: <https://issues.guix.gnu.org/47869> Co-Authored-By: Ludovic Courtès <ludo@gnu.org> Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'tests')
-rw-r--r--tests/build-utils.scm25
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/build-utils.scm b/tests/build-utils.scm
index 31be7ff80f..6b131c0af8 100644
--- a/tests/build-utils.scm
+++ b/tests/build-utils.scm
@@ -2,6 +2,7 @@
;;; Copyright © 2012, 2015, 2016, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -263,4 +264,28 @@ print('hello world')"))
(lambda _
(get-string-all (current-input-port))))))))
+(test-equal "search-input-file: exception if not found"
+ `((path)
+ (file . "does-not-exist"))
+ (guard (e ((search-error? e)
+ `((path . ,(search-error-path e))
+ (file . ,(search-error-file e)))))
+ (search-input-file '() "does-not-exist")))
+
+(test-equal "search-input-file: can find if existent"
+ (which "guile")
+ (search-input-file
+ `(("guile/bin" . ,(dirname (which "guile"))))
+ "guile"))
+
+(test-equal "search-input-file: can search in multiple directories"
+ (which "guile")
+ (call-with-temporary-directory
+ (lambda (directory)
+ (search-input-file
+ `(("irrelevant" . ,directory)
+ ("guile/bin" . ,(dirname (which "guile"))))
+ "guile"))))
+
+
(test-end)