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-rwxr-xr-xgit-submodule.sh242
1 files changed, 194 insertions, 48 deletions
diff --git a/git-submodule.sh b/git-submodule.sh
index 7c2e060ae7..e2082fd149 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -4,9 +4,14 @@
#
# Copyright (c) 2007 Lars Hjemli
-USAGE="[--quiet] [--cached] \
-[add [-b branch] <repo> <path>]|[status|init|update [-i|--init] [-N|--no-fetch]|summary [-n|--summary-limit <n>] [<commit>]] \
-[--] [<path>...]|[foreach <command>]|[sync [--] [<path>...]]"
+dashless=$(basename "$0" | sed -e 's/-/ /')
+USAGE="[--quiet] add [-b branch] [--reference <repository>] [--] <repository> [<path>]
+ or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
+ or: $dashless [--quiet] init [--] [<path>...]
+ or: $dashless [--quiet] update [--init] [-N|--no-fetch] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
+ or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
+ or: $dashless [--quiet] foreach [--recursive] <command>
+ or: $dashless [--quiet] sync [--] [<path>...]"
OPTIONS_SPEC=
. git-sh-setup
. git-parse-remote
@@ -14,20 +19,12 @@ require_work_tree
command=
branch=
-quiet=
+reference=
cached=
+files=
nofetch=
-
-#
-# print stuff on stdout unless -q was specified
-#
-say()
-{
- if test -z "$quiet"
- then
- echo "$@"
- fi
-}
+update=
+prefix=
# Resolve relative url by appending to parent's url
resolve_relative_url ()
@@ -60,7 +57,7 @@ resolve_relative_url ()
#
module_list()
{
- git ls-files --error-unmatch --stage -- "$@" | grep '^160000 '
+ git ls-files --error-unmatch --stage -- "$@" | sane_grep '^160000 '
}
#
@@ -91,6 +88,7 @@ module_clone()
{
path=$1
url=$2
+ reference="$3"
# If there already is a directory at the submodule path,
# expect it to be empty (since that is the default checkout
@@ -100,13 +98,18 @@ module_clone()
if test -d "$path"
then
rmdir "$path" 2>/dev/null ||
- die "Directory '$path' exist, but is neither empty nor a git repository"
+ die "Directory '$path' exists, but is neither empty nor a git repository"
fi
test -e "$path" &&
die "A file already exist at path '$path'"
- git-clone -n "$url" "$path" ||
+ if test -n "$reference"
+ then
+ git-clone "$reference" -n "$url" "$path"
+ else
+ git-clone -n "$url" "$path"
+ fi ||
die "Clone of '$url' into submodule path '$path' failed"
}
@@ -129,7 +132,16 @@ cmd_add()
shift
;;
-q|--quiet)
- quiet=1
+ GIT_QUIET=1
+ ;;
+ --reference)
+ case "$2" in '') usage ;; esac
+ reference="--reference=$2"
+ shift
+ ;;
+ --reference=*)
+ reference="$1"
+ shift
;;
--)
shift
@@ -148,6 +160,11 @@ cmd_add()
repo=$1
path=$2
+ if test -z "$path"; then
+ path=$(echo "$repo" |
+ sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
+ fi
+
if test -z "$repo" -o -z "$path"; then
usage
fi
@@ -203,9 +220,16 @@ cmd_add()
git config submodule."$path".url "$url"
else
- module_clone "$path" "$realrepo" || exit
- (unset GIT_DIR; cd "$path" && git checkout -f -q ${branch:+-b "$branch" "origin/$branch"}) ||
- die "Unable to checkout submodule '$path'"
+ module_clone "$path" "$realrepo" "$reference" || exit
+ (
+ clear_local_git_env
+ cd "$path" &&
+ # ash fails to wordsplit ${branch:+-b "$branch"...}
+ case "$branch" in
+ '') git checkout -f -q ;;
+ ?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
+ esac
+ ) || die "Unable to checkout submodule '$path'"
fi
git add "$path" ||
@@ -225,13 +249,43 @@ cmd_add()
#
cmd_foreach()
{
+ # parse $args after "submodule ... foreach".
+ while test $# -ne 0
+ do
+ case "$1" in
+ -q|--quiet)
+ GIT_QUIET=1
+ ;;
+ --recursive)
+ recursive=1
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
module_list |
while read mode sha1 stage path
do
if test -e "$path"/.git
then
- say "Entering '$path'"
- (cd "$path" && eval "$@") ||
+ say "Entering '$prefix$path'"
+ name=$(module_name "$path")
+ (
+ prefix="$prefix$path/"
+ clear_local_git_env
+ cd "$path" &&
+ eval "$@" &&
+ if test -n "$recursive"
+ then
+ cmd_foreach "--recursive" "$@"
+ fi
+ ) ||
die "Stopping at '$path'; script returned non-zero status."
fi
done
@@ -249,7 +303,7 @@ cmd_init()
do
case "$1" in
-q|--quiet)
- quiet=1
+ GIT_QUIET=1
;;
--)
shift
@@ -287,6 +341,11 @@ cmd_init()
git config submodule."$name".url "$url" ||
die "Failed to register url for submodule path '$path'"
+ upd="$(git config -f .gitmodules submodule."$name".update)"
+ test -z "$upd" ||
+ git config submodule."$name".update "$upd" ||
+ die "Failed to register update mode for submodule path '$path'"
+
say "Submodule '$name' ($url) registered for path '$path'"
done
}
@@ -299,21 +358,43 @@ cmd_init()
cmd_update()
{
# parse $args after "submodule ... update".
+ orig_args="$@"
while test $# -ne 0
do
case "$1" in
-q|--quiet)
shift
- quiet=1
+ GIT_QUIET=1
;;
-i|--init)
+ init=1
shift
- cmd_init "$@" || return
;;
-N|--no-fetch)
shift
nofetch=1
;;
+ -r|--rebase)
+ shift
+ update="rebase"
+ ;;
+ --reference)
+ case "$2" in '') usage ;; esac
+ reference="--reference=$2"
+ shift 2
+ ;;
+ --reference=*)
+ reference="$1"
+ shift
+ ;;
+ -m|--merge)
+ shift
+ update="merge"
+ ;;
+ --recursive)
+ shift
+ recursive=1
+ ;;
--)
shift
break
@@ -327,11 +408,17 @@ cmd_update()
esac
done
+ if test -n "$init"
+ then
+ cmd_init "--" "$@" || return
+ fi
+
module_list "$@" |
while read mode sha1 stage path
do
name=$(module_name "$path") || exit
url=$(git config submodule."$name".url)
+ update_module=$(git config submodule."$name".update)
if test -z "$url"
then
# Only mention uninitialized submodules when its
@@ -344,14 +431,19 @@ cmd_update()
if ! test -d "$path"/.git -o -f "$path"/.git
then
- module_clone "$path" "$url" || exit
+ module_clone "$path" "$url" "$reference"|| exit
subsha1=
else
- subsha1=$(unset GIT_DIR; cd "$path" &&
+ subsha1=$(clear_local_git_env; cd "$path" &&
git rev-parse --verify HEAD) ||
die "Unable to find current revision in submodule path '$path'"
fi
+ if ! test -z "$update"
+ then
+ update_module=$update
+ fi
+
if test "$subsha1" != "$sha1"
then
force=
@@ -362,23 +454,45 @@ cmd_update()
if test -z "$nofetch"
then
- (unset GIT_DIR; cd "$path" &&
+ (clear_local_git_env; cd "$path" &&
git-fetch) ||
die "Unable to fetch in submodule path '$path'"
fi
- (unset GIT_DIR; cd "$path" &&
- git-checkout $force -q "$sha1") ||
- die "Unable to checkout '$sha1' in submodule path '$path'"
+ case "$update_module" in
+ rebase)
+ command="git rebase"
+ action="rebase"
+ msg="rebased onto"
+ ;;
+ merge)
+ command="git merge"
+ action="merge"
+ msg="merged in"
+ ;;
+ *)
+ command="git checkout $force -q"
+ action="checkout"
+ msg="checked out"
+ ;;
+ esac
+
+ (clear_local_git_env; cd "$path" && $command "$sha1") ||
+ die "Unable to $action '$sha1' in submodule path '$path'"
+ say "Submodule path '$path': $msg '$sha1'"
+ fi
- say "Submodule path '$path': checked out '$sha1'"
+ if test -n "$recursive"
+ then
+ (clear_local_git_env; cd "$path" && cmd_update $orig_args) ||
+ die "Failed to recurse into submodule path '$path'"
fi
done
}
set_name_rev () {
revname=$( (
- unset GIT_DIR
+ clear_local_git_env
cd "$1" && {
git describe "$2" 2>/dev/null ||
git describe --tags "$2" 2>/dev/null ||
@@ -399,6 +513,7 @@ set_name_rev () {
cmd_summary() {
summary_limit=-1
for_status=
+ diff_cmd=diff-index
# parse $args after "submodule ... summary".
while test $# -ne 0
@@ -407,6 +522,9 @@ cmd_summary() {
--cached)
cached="$1"
;;
+ --files)
+ files="$1"
+ ;;
--for-status)
for_status="$1"
;;
@@ -443,10 +561,18 @@ cmd_summary() {
head=HEAD
fi
+ if [ -n "$files" ]
+ then
+ test -n "$cached" &&
+ die "--cached cannot be used with --files"
+ diff_cmd=diff-files
+ head=
+ fi
+
cd_to_toplevel
# Get modified modules cared by user
- modules=$(git diff-index $cached --raw $head -- "$@" |
- egrep '^:([0-7]* )?160000' |
+ modules=$(git $diff_cmd $cached --raw $head -- "$@" |
+ sane_egrep '^:([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)
@@ -459,8 +585,8 @@ cmd_summary() {
test -z "$modules" && return
- git diff-index $cached --raw $head -- $modules |
- egrep '^:([0-7]* )?160000' |
+ git $diff_cmd $cached --raw $head -- $modules |
+ sane_egrep '^:([0-7]* )?160000' |
cut -c2- |
while read mod_src mod_dst sha1_src sha1_dst status name
do
@@ -562,7 +688,11 @@ cmd_summary() {
echo
done |
if test -n "$for_status"; then
- echo "# Modified submodules:"
+ if [ -n "$files" ]; then
+ echo "# Submodules changed but not updated:"
+ else
+ echo "# Submodule changes to be committed:"
+ fi
echo "#"
sed -e 's|^|# |' -e 's|^# $|#|'
else
@@ -582,15 +712,19 @@ cmd_summary() {
cmd_status()
{
# parse $args after "submodule ... status".
+ orig_args="$@"
while test $# -ne 0
do
case "$1" in
-q|--quiet)
- quiet=1
+ GIT_QUIET=1
;;
--cached)
cached=1
;;
+ --recursive)
+ recursive=1
+ ;;
--)
shift
break
@@ -610,22 +744,34 @@ cmd_status()
do
name=$(module_name "$path") || exit
url=$(git config submodule."$name".url)
+ displaypath="$prefix$path"
if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
then
- say "-$sha1 $path"
+ say "-$sha1 $displaypath"
continue;
fi
set_name_rev "$path" "$sha1"
if git diff-files --quiet -- "$path"
then
- say " $sha1 $path$revname"
+ say " $sha1 $displaypath$revname"
else
if test -z "$cached"
then
- sha1=$(unset GIT_DIR; cd "$path" && git rev-parse --verify HEAD)
+ sha1=$(clear_local_git_env; cd "$path" && git rev-parse --verify HEAD)
set_name_rev "$path" "$sha1"
fi
- say "+$sha1 $path$revname"
+ say "+$sha1 $displaypath$revname"
+ fi
+
+ if test -n "$recursive"
+ then
+ (
+ prefix="$displaypath/"
+ clear_local_git_env
+ cd "$path" &&
+ cmd_status $orig_args
+ ) ||
+ die "Failed to recurse into submodule path '$path'"
fi
done
}
@@ -640,7 +786,7 @@ cmd_sync()
do
case "$1" in
-q|--quiet)
- quiet=1
+ GIT_QUIET=1
shift
;;
--)
@@ -672,7 +818,7 @@ cmd_sync()
if test -e "$path"/.git
then
(
- unset GIT_DIR
+ clear_local_git_env
cd "$path"
remote=$(get_default_remote)
say "Synchronizing submodule url for '$name'"
@@ -695,7 +841,7 @@ do
command=$1
;;
-q|--quiet)
- quiet=1
+ GIT_QUIET=1
;;
-b|--branch)
case "$2" in