# Copyright (c) 2007 Lars Hjemli
USAGE='[--quiet] [--cached] [add <repo> [-b branch]|status|init|update] [--] [<path>...]'
+OPTIONS_SPEC=
. git-sh-setup
require_work_tree
-add=
+command=
branch=
-init=
-update=
-status=
quiet=
cached=
) 2>/dev/null
}
+# Resolve relative url by appending to parent's url
+resolve_relative_url ()
+{
+ branch="$(git symbolic-ref HEAD 2>/dev/null)"
+ remote="$(git config branch.${branch#refs/heads/}.remote)"
+ remote="${remote:-origin}"
+ remoteurl="$(git config remote.$remote.url)" ||
+ die "remote ($remote) does not have a url in .git/config"
+ url="$1"
+ while test -n "$url"
+ do
+ case "$url" in
+ ../*)
+ url="${url#../}"
+ remoteurl="${remoteurl%/*}"
+ ;;
+ ./*)
+ url="${url#./}"
+ ;;
+ *)
+ break;;
+ esac
+ done
+ echo "$remoteurl/$url"
+}
+
#
# Map submodule path to submodule name
#
#
module_name()
{
- name=$(GIT_CONFIG=.gitmodules git-config --get-regexp '^submodule\..*\.path$' "$1" |
- sed -nre 's/^submodule\.(.+)\.path .+$/\1/p')
+ # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
+ re=$(printf '%s' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
+ name=$( GIT_CONFIG=.gitmodules \
+ git config --get-regexp '^submodule\..*\.path$' |
+ sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
test -z "$name" &&
die "No submodule mapping found in .gitmodules for path '$path'"
echo "$name"
#
# Clone a submodule
#
-# Prior to calling, modules_update checks that a possibly existing
+# Prior to calling, cmd_update checks that a possibly existing
# path is not a git repository.
-# Likewise, module_add checks that path does not exist at all,
+# Likewise, cmd_add checks that path does not exist at all,
# since it is the location of a new submodule.
#
module_clone()
#
# optional branch is stored in global branch variable
#
-module_add()
+cmd_add()
{
+ # parse $args after "submodule ... add".
+ while test $# -ne 0
+ do
+ case "$1" in
+ -b | --branch)
+ case "$2" in '') usage ;; esac
+ branch=$2
+ shift
+ ;;
+ -q|--quiet)
+ quiet=1
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
repo=$1
path=$2
usage
fi
- # Turn the source into an absolute path if
- # it is local
- if base=$(get_repo_base "$repo"); then
- repo="$base"
- fi
+ case "$repo" in
+ ./*|../*)
+ # dereference source url relative to parent's url
+ realrepo="$(resolve_relative_url $repo)" ;;
+ *)
+ # Turn the source into an absolute path if
+ # it is local
+ if base=$(get_repo_base "$repo"); then
+ repo="$base"
+ fi
+ realrepo=$repo
+ ;;
+ esac
# Guess path from repo if not specified or strip trailing slashes
if test -z "$path"; then
test -e "$path" &&
die "'$path' already exists"
- git-ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
+ git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
die "'$path' already exists in the index"
- module_clone "$path" "$repo" || exit
- (unset GIT_DIR && cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
+ module_clone "$path" "$realrepo" || exit
+ (unset GIT_DIR; cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
die "Unable to checkout submodule '$path'"
git add "$path" ||
die "Failed to add submodule '$path'"
#
# $@ = requested paths (default to all)
#
-modules_init()
+cmd_init()
{
+ # parse $args after "submodule ... init".
+ while test $# -ne 0
+ do
+ case "$1" in
+ -q|--quiet)
+ quiet=1
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
# Skip already registered paths
name=$(module_name "$path") || exit
- url=$(git-config submodule."$name".url)
+ url=$(git config submodule."$name".url)
test -z "$url" || continue
- url=$(GIT_CONFIG=.gitmodules git-config submodule."$name".url)
+ url=$(GIT_CONFIG=.gitmodules git config submodule."$name".url)
test -z "$url" &&
die "No url found for submodule path '$path' in .gitmodules"
- git-config submodule."$name".url "$url" ||
+ # Possibly a url relative to parent
+ case "$url" in
+ ./*|../*)
+ url="$(resolve_relative_url "$url")"
+ ;;
+ esac
+
+ git config submodule."$name".url "$url" ||
die "Failed to register url for submodule path '$path'"
say "Submodule '$name' ($url) registered for path '$path'"
#
# $@ = requested paths (default to all)
#
-modules_update()
+cmd_update()
{
+ # parse $args after "submodule ... update".
+ while test $# -ne 0
+ do
+ case "$1" in
+ -q|--quiet)
+ quiet=1
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
name=$(module_name "$path") || exit
- url=$(git-config submodule."$name".url)
+ url=$(git config submodule."$name".url)
if test -z "$url"
then
# Only mention uninitialized submodules when its
module_clone "$path" "$url" || exit
subsha1=
else
- subsha1=$(unset GIT_DIR && cd "$path" &&
- git-rev-parse --verify HEAD) ||
+ subsha1=$(unset GIT_DIR; cd "$path" &&
+ git rev-parse --verify HEAD) ||
die "Unable to find current revision in submodule path '$path'"
fi
if test "$subsha1" != "$sha1"
then
- (unset GIT_DIR && cd "$path" && git-fetch &&
+ (unset GIT_DIR; cd "$path" && git-fetch &&
git-checkout -q "$sha1") ||
die "Unable to checkout '$sha1' in submodule path '$path'"
done
}
+set_name_rev () {
+ revname=$( (
+ unset GIT_DIR
+ cd "$1" && {
+ git describe "$2" 2>/dev/null ||
+ git describe --tags "$2" 2>/dev/null ||
+ git describe --contains --tags "$2"
+ }
+ ) )
+ test -z "$revname" || revname=" ($revname)"
+}
+
#
# List all submodules, prefixed with:
# - submodule not initialized
#
# $@ = requested paths (default to all)
#
-modules_list()
+cmd_status()
{
+ # parse $args after "submodule ... status".
+ while test $# -ne 0
+ do
+ case "$1" in
+ -q|--quiet)
+ quiet=1
+ ;;
+ --cached)
+ cached=1
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
name=$(module_name "$path") || exit
- url=$(git-config submodule."$name".url)
+ url=$(git config submodule."$name".url)
if test -z "url" || ! test -d "$path"/.git
then
say "-$sha1 $path"
continue;
fi
- revname=$(unset GIT_DIR && cd "$path" && git-describe $sha1)
+ set_name_rev "$path" "$sha1"
if git diff-files --quiet -- "$path"
then
- say " $sha1 $path ($revname)"
+ say " $sha1 $path$revname"
else
if test -z "$cached"
then
- sha1=$(unset GIT_DIR && cd "$path" && git-rev-parse --verify HEAD)
- revname=$(unset GIT_DIR && cd "$path" && git-describe $sha1)
+ sha1=$(unset GIT_DIR; cd "$path" && git rev-parse --verify HEAD)
+ set_name_rev "$path" "$sha1"
fi
- say "+$sha1 $path ($revname)"
+ say "+$sha1 $path$revname"
fi
done
}
-while case "$#" in 0) break ;; esac
+# This loop parses the command line arguments to find the
+# subcommand name to dispatch. Parsing of the subcommand specific
+# options are primarily done by the subcommand implementations.
+# Subcommand specific options such as --branch and --cached are
+# parsed here as well, for backward compatibility.
+
+while test $# != 0 && test -z "$command"
do
case "$1" in
- add)
- add=1
- ;;
- init)
- init=1
- ;;
- update)
- update=1
- ;;
- status)
- status=1
+ add | init | update | status)
+ command=$1
;;
-q|--quiet)
quiet=1
shift
done
-case "$add,$branch" in
-1,*)
- ;;
-,)
- ;;
-,*)
+# No command word defaults to "status"
+test -n "$command" || command=status
+
+# "-b branch" is accepted only by "add"
+if test -n "$branch" && test "$command" != add
+then
usage
- ;;
-esac
-
-case "$add,$init,$update,$status,$cached" in
-1,,,,)
- module_add "$@"
- ;;
-,1,,,)
- modules_init "$@"
- ;;
-,,1,,)
- modules_update "$@"
- ;;
-,,,1,*)
- modules_list "$@"
- ;;
-*)
+fi
+
+# "--cached" is accepted only by "status"
+if test -n "$cached" && test "$command" != status
+then
usage
- ;;
-esac
+fi
+
+"cmd_$command" "$@"