[pacman-dev] [PATCH 1/2] makepkg: Bazaar VCS support.

[Gary van der Merwe]

This patch adds Bazaar VCS support to makepkg. 

Fragments can be any bzr revision spec. eg:

http://example.com/project/#revno:62

or just 

http://example.com/project/#62

For more info, see `bzr help revisionspec`.

Writing a pkgver func is easy with `bzr version-info`, eg:

pkgver() {
  cd $srcdir/$pkgname
  bzr version-info --custom --template="{revno}\n"
}

---
 doc/PKGBUILD.5.txt    |  5 ++++-
 scripts/makepkg.sh.in | 60 ++++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 61 insertions(+), 4 deletions(-)

diff --git a/doc/PKGBUILD.5.txt b/doc/PKGBUILD.5.txt
index 47f9e88..c0f96c2 100644
--- a/doc/PKGBUILD.5.txt
+++ b/doc/PKGBUILD.5.txt
@@ -405,7 +405,7 @@ Using VCS Sources[[VCS]]
 ------------------------
 Building a developmental version of a package using sources from a version control
 system (VCS) is enabled by specifying the source in the form
-`source=('folder::url#fragment')`. Currently makepkg supports the `git`, `hg` and
+`source=('folder::url#fragment')`. Currently makepkg supports the `git`, `hg`, `bzr` and
 `svn` protocols.
 
 The source URL is divided into three components:
@@ -433,6 +433,9 @@ The source URL is divided into three components:
 	*hg*;;
 		branch, revision, tag
 
+	*bzr*;;
+		revisionspec (see `bzr help revisionspec` for details)
+
 	*svn*;;
 		revision
 
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index dd4066b..3460824 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -200,7 +200,7 @@ get_filepath() {
 	local proto="$(get_protocol "$1")"
 
 	case $proto in
-		git*|hg*|svn*)
+		git*|hg*|svn*|bzr*)
 			if [[ -d "$startdir/$file" ]]; then
 				file="$startdir/$file"
 			elif [[ -d "$SRCDEST/$file" ]]; then
@@ -236,7 +236,7 @@ get_filename() {
 	local proto=$(get_protocol "$netfile")
 
 	case $proto in
-		git*|hg*|svn*)
+		git*|hg*|svn*|bzr*)
 			filename=${netfile##*/}
 			filename=${filename%%#*}
 			# fall-through
@@ -572,6 +572,57 @@ download_svn() {
 	popd &>/dev/null
 }
 
+download_bzr() {
+	local netfile=$1
+
+	local url=$(get_url "$netfile")
+	url=${url##*bzr+}
+	url=${url%%#*}
+
+	local fragment=${netfile##*#}
+	if [[ $fragment = "$netfile" ]]; then
+		unset fragment
+		local revisionspec="-r-1"
+		local displaylocation="$url"
+	else
+		local revisionspec="-r$fragment"
+		local displaylocation="$url -r $fragment"
+	fi
+
+	local dir=$(get_filepath "$netfile")
+	[[ -z "$dir" ]] && dir="$SRCDEST/$(get_filename "$netfile")"
+
+	if [[ ! -d "$dir" ]]; then
+		msg2 "$(gettext "Branching %s ...")" "${displaylocation}"
+		if ! bzr branch "$url" "$dir" $revisionspec --no-tree; then
+			error "$(gettext "Failure while branching %s")" "${displaylocation}"
+			plain "$(gettext "Aborting...")"
+			exit 1
+		fi
+	elif (( ! HOLDVER )); then
+		msg2 "$(gettext "Pulling %s ...")" "${displaylocation}"
+		cd_safe "$dir"
+		if ! bzr pull "$url" $revisionspec --overwrite; then
+			# only warn on failure to allow offline builds
+			warning "$(gettext "Failure while pulling %s")" "${displaylocation}"
+		fi
+	fi
+
+	msg2 "$(gettext "Creating working copy of %s %s repo...")" "${dir}" "bzr"
+	pushd "$srcdir" &>/dev/null
+	rm -rf "${dir##*/}"
+
+	if ! bzr checkout "$dir" --lightweight; then
+		error "$(gettext "Failure while creating working copy of %s %s repo")" "${dir}" "bzr"
+		plain "$(gettext "Aborting...")"
+		exit 1
+	fi
+
+	cd_safe "${dir##*/}"
+
+	popd &>/dev/null
+}
+
 download_sources() {
 	msg "$(gettext "Retrieving Sources...")"
 
@@ -602,6 +653,9 @@ download_sources() {
 			svn*)
 				(( GET_VCS )) && download_svn "$netfile"
 				;;
+			bzr*)
+				(( GET_VCS )) && download_bzr "$netfile"
+				;;
 			*)
 				error "$(gettext "Unknown download protocol: %s")" "$proto"
 				plain "$(gettext "Aborting...")"
@@ -974,7 +1028,7 @@ generate_checksums() {
 			proto="$(get_protocol "$netfile")"
 
 			case $proto in
-				git*|hg*|svn*)
+				git*|hg*|svn*|bzr*)
 					sum="SKIP"
 					;;
 				*)
-- 
1.7.11.4