#
# Copyright (c) 2007 Lars Hjemli
-USAGE='[--quiet] [--cached] [add <repo> [-b branch]|status|init|update] [--] [<path>...]'
+USAGE='[--quiet] [--cached] [add <repo> [-b branch]|status|init|update|summary [<commit>]] [--] [<path>...]'
+OPTIONS_SPEC=
. git-sh-setup
require_work_tree
-add=
+command=
branch=
-init=
-update=
-status=
quiet=
cached=
#
# 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=$2
die "'$path' already exists in the index"
module_clone "$path" "$realrepo" || exit
- (unset GIT_DIR && cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
+ (unset GIT_DIR; cd "$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
#
# $@ = 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
module_clone "$path" "$url" || exit
subsha1=
else
- subsha1=$(unset GIT_DIR && cd "$path" &&
+ 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'"
set_name_rev () {
revname=$( (
- unset GIT_DIR &&
+ unset GIT_DIR
cd "$1" && {
git describe "$2" 2>/dev/null ||
git describe --tags "$2" 2>/dev/null ||
) )
test -z "$revname" || revname=" ($revname)"
}
+#
+# Show commit summary for submodules in index or working tree
+#
+# If '--cached' is given, show summary between index and given commit,
+# or between working tree and given commit
+#
+# $@ = [commit (default 'HEAD'),] requested paths (default all)
+#
+cmd_summary() {
+ # parse $args after "submodule ... summary".
+ while test $# -ne 0
+ do
+ case "$1" in
+ --cached)
+ cached="$1"
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
+ if rev=$(git rev-parse --verify "$1^0" 2>/dev/null)
+ then
+ head=$rev
+ shift
+ else
+ head=HEAD
+ fi
+ cd_to_toplevel
+ # Get modified modules cared by user
+ modules=$(git diff-index $cached --raw $head -- "$@" |
+ grep -e '^:160000' -e '^:[0-7]* 160000' |
+ while read mod_src mod_dst sha1_src sha1_dst status name
+ do
+ # Always show modules deleted or type-changed (blob<->module)
+ test $status = D -o $status = T && echo "$name" && continue
+ # Also show added or modified modules which are checked out
+ GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
+ echo "$name"
+ done
+ )
+}
#
# 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)
- if test -z "url" || ! test -d "$path"/.git
+ if test -z "$url" || ! test -d "$path"/.git
then
say "-$sha1 $path"
continue;
else
if test -z "$cached"
then
- sha1=$(unset GIT_DIR && cd "$path" && git rev-parse --verify HEAD)
+ sha1=$(unset GIT_DIR; cd "$path" && git rev-parse --verify HEAD)
set_name_rev "$path" "$sha1"
fi
say "+$sha1 $path$revname"
done
}
-while test $# != 0
+# 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 | summary)
+ command=$1
;;
-q|--quiet)
quiet=1
branch="$2"; shift
;;
--cached)
- cached=1
+ cached="$1"
;;
--)
break
shift
done
-case "$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 "$@"
- ;;
-,,1,,)
- modules_update "$@"
- ;;
-,,,*,*)
- modules_list "$@"
- ;;
-*)
+fi
+
+# "--cached" is accepted only by "status" and "summary"
+if test -n "$cached" && test "$command" != status -a "$command" != summary
+then
usage
- ;;
-esac
+fi
+
+"cmd_$command" "$@"