slackbuilds/games/jfsw/git2tarxz.sh

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#!/bin/sh
# Create source tarball from git repo, with generated version number.
# Takes one optional argument, which is the commit or tag to create a
# tarball of. With no arg, HEAD is used.
# Version number example: 0.0.1+20200227_ad7ec17
# Notes:
# Do not use this if you're packaging a release.
# 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.
# Running this script twice for the same commit will NOT give identical
# tarballs, even if the contents are identical. This is because tar
# includes the current time in a newly-created tarball (plus there may
# be other git-related reasons).
# Once you've generated a tarball, you'll still need a place to host it.
# Ask on the mailing list, if you don't have your own web server to
# play with.
## Config:
# Name of SBo build:
PRGNAM=jfsw
# Github project and user names:
PROJECT=${PRGNAM}
GITUSER=jonof
# For github projects, you can use this unmodified:
CLONE_URL=https://github.com/$GITUSER/$PROJECT.git
# For non-github projects, you might not need GITUSER, in which case
# just omit it from the script.
## End of config.
set -e
GITDIR=$( mktemp -dt $PRGNAM.git.XXXXXX )
rm -rf $GITDIR
git clone $CLONE_URL $GITDIR
CWD="$( pwd )"
cd $GITDIR
git submodule update --init
if [ "$1" != "" ]; then
git reset --hard "$1" || exit 1
fi
GIT_SHA=$( git rev-parse --short HEAD )
DATE=$( git log --date=format:%Y%m%d --format=%cd | head -1 )
VERSION=${DATE}_${GIT_SHA}
find . -name .git\* -print0 | xargs -0 rm -rf
cd "$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=\"$VERSION\""
echo "MD5SUM=\"$( md5sum $PRGNAM-$VERSION.tar.xz | cut -d' ' -f1 )\""