slackbuilds/libraries/libnsgif/git2tarxz.sh

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#!/bin/sh
### Containg libnsgif specific stuff, do not use as-is for a template!
# Create source tarball from git repo, with generated version
# number.
# Note that this script doesn't need to be run as root. It does
# need to be able to write to the current directory it's run from.
# Takes one optional argument, which is the commit or tag to create
# a tarball of. With no arg, HEAD is used.
PRGNAM=libnsgif
CLONE_URL=https://github.com/jcupitt/libnsgif-autotools
# The version of libnsgif from the netsurf project, that this autotools
# version was forked from. Have to keep track of this manually unless
# upstream starts using git tags.
MAINVER=0.2.1
set -e
GITDIR=$( mktemp -dt $PRGNAM.git.XXXXXX )
rm -rf $GITDIR
git clone $CLONE_URL $GITDIR
CWD="$( pwd )"
cd $GITDIR
if [ "$1" != "" ]; then
git reset --hard "$1" || exit 1
fi
GIT_SHA=$( git rev-parse --short HEAD )
DATE=$( git log --date=format:%Y%m%d --format=%cd | head -1 )
VERSION=${MAINVER}+${DATE}_${GIT_SHA}
rm -rf .git
find . -name .gitignore -print0 | xargs -0 rm -f
cd "$CWD"
rm -rf $PRGNAM-$VERSION $PRGNAM-$VERSION.tar.xz
mv $GITDIR $PRGNAM-$VERSION
tar cvfJ $PRGNAM-$VERSION.tar.xz $PRGNAM-$VERSION
echo
echo "Created tarball: $PRGNAM-$VERSION.tar.xz"
echo "VERSION=$VERSION"