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mpv/version.sh
wm4 314a07e787 version.sh: fix git rev. generation (.git is not always a directory)
It appears git submodule handling recently changed, changing the .git
directory to a regular file containing submodule specific information.
This means that version.sh would generate "#define VERSION "git-UNKNOWN""
if the checkout is a submodule, because it explicitly checks for a .git
directory using test -d. Change it to -e so that this case is handled
correctly.
2013-02-06 23:03:37 +01:00

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#!/bin/sh
export LC_ALL=C
test "$1" && extra="-$1"
# Extract revision number from file used by daily tarball snapshots
# or from "git describe" output
git_revision=$(cat snapshot_version 2> /dev/null)
test $git_revision || test ! -e .git || git_revision=`git rev-parse --short HEAD`
git_revision=$(expr "$git_revision" : v*'\(.*\)')
test $git_revision || git_revision=UNKNOWN
# releases extract the version number from the VERSION file
version=$(cat VERSION 2> /dev/null)
test $version || version=git-$git_revision
NEW_REVISION="#define VERSION \"${version}${extra}\""
OLD_REVISION=$(head -n 1 version.h 2> /dev/null)
BUILDDATE="#define BUILDDATE \"$(date)\""
# Update version.h only on revision changes to avoid spurious rebuilds
if test "$NEW_REVISION" != "$OLD_REVISION"; then
cat <<EOF > version.h
$NEW_REVISION
$BUILDDATE
EOF
fi