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libcamera: skip auto version generation when building for Chromium OS

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Commit b817bcec6b ("libcamera: Auto generate version information")
causes the build to fail in the Chromium OS build environment, because
git update-index tries to take a lock (ie. write) in the git repo that
is outside of the build directory.

The solution is to simply skip git update-index if we are building in
the Chromium OS build environment, and this decision is made if the
build directory is not a subdirectory of the source directory.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Paul Elder 2019-07-10 20:29:44 +09:00
parent 6a27bd3387
commit 10ec09025d
3 changed files with 9 additions and 8 deletions
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13
utils/gen-version.sh
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@ -3,13 +3,11 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# Generate a version string using git describe
if [ -n "$1" ]
then
cd "$1" 2>/dev/null || exit 1
fi
build_dir="$1"
# Bail out if the directory isn't under git control
git rev-parse --git-dir >/dev/null 2>&1 || exit 1
src_dir=$(git rev-parse --git-dir 2>&1) || exit 1
src_dir=$(readlink -f "$src_dir/..")
# Get a short description from the tree.
version=$(git describe --abbrev=8 --match "v[0-9]*" 2>/dev/null)
@ -24,7 +22,10 @@ fi
# Append a '-dirty' suffix if the working tree is dirty. Prevent false
# positives due to changed timestamps by running git update-index.
git update-index --refresh > /dev/null 2>&1
if [ -z "$build_dir" ] || (echo "$build_dir" | grep -q "$src_dir")
then
git update-index --refresh > /dev/null 2>&1
fi
git diff-index --quiet HEAD || version="$version-dirty"
# Replace first '-' with a '+' to denote build metadata, strip the 'g' in from