gitbp

#!/bin/bash

# resolve $0 in case it's a symlink, then grab directory.
REALDIR="$(dirname $(realpath $0))"

# if unset, assume pbuilder-hooks is in same directory as this script.
PBUILDERHOOKSDIR="${PBUILDERHOOKSDIR:-$REALDIR/pbuilder-hooks}"

PKG=$(dpkg-parsechangelog | grep ^Source: | cut -d' ' -f2)
VER=$(dpkg-parsechangelog | grep ^Version: | cut -d' ' -f2 | cut -d- -f1)

# assume branches are specified in debian/gbp.conf if it exists.
if [ ! -e debian/gbp.conf ]; then

DEBIANBRANCH="master"
UPSTREAMBRANCH="upstream"
CURRENTBRANCH=$(git rev-parse --abbrev-ref HEAD)
DISTRIBUTION=$(dpkg-parsechangelog -S Distribution )
PRISTINETAR=""

# allow symlinks to this script for convenience to set up environment
# variables for local archive and experimental archive access.
if [ "$(basename $0)" = "gitbpl" ]; then
	export ENABLE_LOCAL="1"
elif [ "$(basename $0)" = "gitbpel" ]; then
	export ENABLE_LOCAL="1"
	export ENABLE_EXP="1"
elif [ "$(basename $0)" = "gitbpe" ]; then
	export ENABLE_EXP="1"
fi

# if current branch contains "experimental", assume it's the debian
# branch and try to find an upstream branch with the same pattern,
# just replacing debian with upstream.
if [ "$CURRENTBRANCH" != "${CURRENTBRANCH/experimental/}" ]; then
	DEBIANBRANCH=$CURRENTBRANCH

	if [ "$DISTRIBUTION" = "UNRELEASED" ]; then
		DISTRIBUTION="experimental"
	fi

	UPSTREAMBRANCH=${DEBIANBRANCH/debian/upstream}

	if [ "$(git show-ref refs/heads/$UPSTREAMBRANCH)" = "" ]; then
		echo "Error: upstream branch $UPSTREAMBRANCH matching current (Debian?) branch $DEBIANBRANCH could not be found." >&2
		exit 1
	fi

# .. next, if branch contains "debian-" (ie. debian-wheezy), try
# to find a matching upstream branch name.
elif [ "$CURRENTBRANCH" != "${CURRENTBRANCH/debian-/}" ]; then
	DEBIANBRANCH=$CURRENTBRANCH
	UPSTREAMBRANCH=${DEBIANBRANCH/debian/upstream}

	if [ "$(git show-ref refs/heads/$UPSTREAMBRANCH)" = "" ]; then
		echo "Error: upstream branch $UPSTREAMBRANCH matching current (Debian?) branch $DEBIANBRANCH could not be found." >&2
		exit 1
	fi

# .. next, if branch contains "master-" (ie. master-wheezy) assume
# it's the debian branch and try to find a matching upstream branch.
elif [ "$CURRENTBRANCH" != "${CURRENTBRANCH/master-/}" ]; then
	DEBIANBRANCH=$CURRENTBRANCH
	UPSTREAMBRANCH=${DEBIANBRANCH/master/upstream}

	if [ "$(git show-ref refs/heads/$UPSTREAMBRANCH)" = "" ]; then
		echo "Error: upstream branch $UPSTREAMBRANCH matching current (Debian?) branch $DEBIANBRANCH could not be found." >&2
		exit 1
	fi

fi

GITUPSTREAMBRANCH="--git-upstream-branch=$UPSTREAMBRANCH"
GITDEBIANBRANCH="--git-debian-branch=$DEBIANBRANCH"

else

GITUPSTREAMBRANCH=""
GITDEBIANBRANCH=""

fi # ! -e debian/gbp.conf

if [ "$DISABLE_PRISTINE_TAR" = "" ]; then

# if a pristine-tar branch exists, add git-buildpackage argument to use it.
# (precondition: only if pristine-tar is not explicitly configured in gbp.conf)
if [ ! -e debian/gbp.conf ] || ! grep -q pristine-tar debian/gbp.conf ; then
if [ "$(git show-ref refs/heads/pristine-tar)" != "" ]; then
	PRISTINETAR="--git-pristine-tar"
# otherwise, check if origin has a pristine-tar branch and if we just
# forgot to create the local branch, create and use it.
elif [ "$(git show-ref origin/pristine-tar)" != "" ]; then
	echo "INFO: Creating local pristine-tar tracking origin...."
	git branch pristine-tar origin/pristine-tar
	PRISTINETAR="--git-pristine-tar"
fi
fi

else
	PRISTINETAR="--git-no-pristine-tar"
fi

# if upload is targeted at experimental, enable pbuilder to fetch
# build-dependencies from debian experimental.
if [ "$DISTRIBUTION" = "experimental" ] || [ "$ENABLE_EXP" != "" ]; then
	echo "INFO: Enabling experimental repository access for pbuilder"
	export ENABLE_EXP=1
fi

# if specified via environment that we should include local package archive
# (/var/cache/pbuilder/mirror, as specified in pbuilder hooks),
# print out the info message to make it more visible.....
if [ "$ENABLE_LOCAL" != "" ]; then
	echo "INFO: Enabling local repository access for pbuilder"
	export ENABLE_LOCAL=1
	LOCALBIND="--bindmounts /var/cache/pbuilder/mirror"
fi

if [ -d "../build-logs" ]; then
	LOGFILE="../build-logs/$PKG-$VER.log"
else
	echo "INFO: ../build-logs doesn't exist, no logging to file."
	LOGFILE=""
fi

# check if we need to give pbuilder network access
if [ -n "$ENABLE_LOCAL" ] || [ -n "$ENABLE_EXP" ] || \
		[ -n "$ENABLE_UNSTABLE" ] || [ -n "$ENABLE_INCOMING" ] || \
		[ -n "$ENABLE_TESTING" ] || \
		[ -n "$ENABLE_NETWORK" ]
then
	USENETWORK="--use-network yes"
else
	USENETWORK=""
fi

# show command used triggering build
set -x

if [ "$LOGFILE" != "" ]; then
gbp buildpackage \
	--git-no-create-orig \
	$PRISTINETAR $GITUPSTREAMBRANCH $GITDEBIANBRANCH \
	--git-builder="pdebuild --debbuildopts '-i -I -j5' --pbuilder pbuilder -- $PBUILDEROPTIONS $USENETWORK --source-only-changes --hookdir $PBUILDERHOOKSDIR $LOCALBIND" \
	"$@" | tee $LOGFILE
else
gbp buildpackage \
	--git-no-create-orig \
	$PRISTINETAR $GITUPSTREAMBRANCH $GITDEBIANBRANCH \
	--git-builder="pdebuild --debbuildopts '-i -I -j5' --pbuilder pbuilder -- $PBUILDEROPTIONS $USENETWORK --source-only-changes --hookdir $PBUILDERHOOKSDIR $LOCALBIND" \
	"$@"
fi