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authorLudovic Courtès <ludovic.courtes@inria.fr>2023-08-11 17:20:06 +0200
committerLudovic Courtès <ludo@gnu.org>2023-08-17 17:33:53 +0200
commit3363ff1867bb02c4aa4955db917ef1d67f2c47e6 (patch)
tree493d236ccf664a6562007f3c973afbca5b61aea4 /tests
parent9896b37ac53e9b0504de55dd5ba4bfa2c241a7ed (diff)
downloadguix-3363ff1867bb02c4aa4955db917ef1d67f2c47e6.tar.gz
ui: 'load*' accepts /dev/fd/N files pointing to a pipe.
This allows users to write Bash commands like:

  guix time-machine -C <(echo %default-channels) -- ...

or:

  guix build -m <(echo '(specifications->manifest (list "guile"))')

Previously, on GNU/Linux, they would fail with:

  error: failed to load '/dev/fd/63': No such file or directory

* guix/ui.scm (try-canonicalize-path): New procedure.
(load*): Use it.
* tests/guix-build.sh: Test 'guix build -m' with a /dev/fd/N file.
Diffstat (limited to 'tests')
-rw-r--r--tests/guix-build.sh9
1 files changed, 8 insertions, 1 deletions
diff --git a/tests/guix-build.sh b/tests/guix-build.sh
index 317c58ac42..4eab0e38b6 100644
--- a/tests/guix-build.sh
+++ b/tests/guix-build.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012-2014, 2016-2022 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012-2014, 2016-2023 Ludovic Courtès <ludo@gnu.org>
 # Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
 # Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
 #
@@ -397,6 +397,13 @@ guix build -d -m "$module_dir/manifest.scm" \
 
 rm "$module_dir"/*.scm
 
+if [ -n "$BASH_VERSION" ]
+then
+    # Check whether we can load from a /dev/fd/N denoting a pipe, using this
+    # handy Bash-specific construct.
+    guix build -m <(echo '(specifications->manifest (list "guile"))') -n
+fi
+
 # Using 'GUIX_BUILD_OPTIONS'.
 GUIX_BUILD_OPTIONS="--dry-run --no-grafts"
 export GUIX_BUILD_OPTIONS