#!/bin/sh
dashless=$(basename "$0" | sed -e 's/-/ /')
USAGE="[--quiet] add [-b branch] [-f|--force] [--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: $dashless [--quiet] sync [--] [<path>...]"
OPTIONS_SPEC=
. git-sh-setup
. git-parse-remote
require_work_tree
command=
branch=
force=
reference=
cached=
recursive=
init=
files=
nofetch=
update=
prefix=
resolve_relative_url ()
{
remote=$(get_default_remote)
remoteurl=$(git config "remote.$remote.url") ||
die "remote ($remote) does not have a url defined in .git/config"
url="$1"
remoteurl=${remoteurl%/}
sep=/
while test -n "$url"
do
case "$url" in
../*)
url="${url#../}"
case "$remoteurl" in
*/*)
remoteurl="${remoteurl%/*}"
;;
*:*)
remoteurl="${remoteurl%:*}"
sep=:
;;
*)
die "cannot strip one component off url '$remoteurl'"
;;
esac
;;
./*)
url="${url#./}"
;;
*)
break;;
esac
done
echo "$remoteurl$sep${url%/}"
}
module_list()
{
git ls-files --error-unmatch --stage -- "$@" |
perl -e '
my %unmerged = ();
my ($null_sha1) = ("0" x 40);
while (<STDIN>) {
chomp;
my ($mode, $sha1, $stage, $path) =
/^([0-7]+) ([0-9a-f]{40}) ([0-3])\t(.*)$/;
next unless $mode eq "160000";
if ($stage ne "0") {
if (!$unmerged{$path}++) {
print "$mode $null_sha1 U\t$path\n";
}
next;
}
print "$_\n";
}
'
}
module_name()
{
re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
test -z "$name" &&
die "No submodule mapping found in .gitmodules for path '$path'"
echo "$name"
}
module_clone()
{
path=$1
url=$2
reference="$3"
if test -n "$reference"
then
git-clone "$reference" -n "$url" "$path"
else
git-clone -n "$url" "$path"
fi ||
die "Clone of '$url' into submodule path '$path' failed"
}
cmd_add()
{
while test $ do
case "$1" in
-b | --branch)
case "$2" in '') usage ;; esac
branch=$2
shift
;;
-f | --force)
force=$1
;;
-q|--quiet)
GIT_QUIET=1
;;
--reference)
case "$2" in '') usage ;; esac
reference="--reference=$2"
shift
;;
--reference=*)
reference="$1"
shift
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
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
case "$repo" in
./*|../*)
realrepo=$(resolve_relative_url "$repo") || exit
;;
*:*|/*)
realrepo=$repo
;;
*)
die "repo URL: '$repo' must be absolute or begin with ./|../"
;;
esac
path=$(printf '%s/\n' "$path" |
sed -e '
s|//*|/|g
s|^\(\./\)*||
s|/\./|/|g
:start
s|\([^/]*\)/\.\./||
tstart
s|/*$||
')
git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
die "'$path' already exists in the index"
if test -z "$force" && ! git add --dry-run --ignore-missing "$path" > /dev/null 2>&1
then
echo >&2 "The following path is ignored by one of your .gitignore files:" &&
echo >&2 $path &&
echo >&2 "Use -f if you really want to add it."
exit 1
fi
if test -e "$path"
then
if test -d "$path"/.git -o -f "$path"/.git
then
echo "Adding existing repo at '$path' to the index"
else
die "'$path' already exists and is not a valid git repo"
fi
case "$repo" in
./*|../*)
url=$(resolve_relative_url "$repo") || exit
;;
*)
url="$repo"
;;
esac
git config submodule."$path".url "$url"
else
module_clone "$path" "$realrepo" "$reference" || exit
(
clear_local_git_env
cd "$path" &&
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 $force "$path" ||
die "Failed to add submodule '$path'"
git config -f .gitmodules submodule."$path".path "$path" &&
git config -f .gitmodules submodule."$path".url "$repo" &&
git add --force .gitmodules ||
die "Failed to register submodule '$path'"
}
cmd_foreach()
{
while test $ do
case "$1" in
-q|--quiet)
GIT_QUIET=1
;;
--recursive)
recursive=1
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
toplevel=$(pwd)
module_list |
while read mode sha1 stage path
do
if test -e "$path"/.git
then
say "Entering '$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
}
cmd_init()
{
while test $ do
case "$1" in
-q|--quiet)
GIT_QUIET=1
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
module_list "$@" |
while read mode sha1 stage path
do
name=$(module_name "$path") || exit
url=$(git config submodule."$name".url)
test -z "$url" || continue
url=$(git config -f .gitmodules submodule."$name".url)
test -z "$url" &&
die "No url found for submodule path '$path' in .gitmodules"
case "$url" in
./*|../*)
url=$(resolve_relative_url "$url") || exit
;;
esac
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
}
cmd_update()
{
orig_flags=
while test $ do
case "$1" in
-q|--quiet)
GIT_QUIET=1
;;
-i|--init)
init=1
;;
-N|--no-fetch)
nofetch=1
;;
-r|--rebase)
update="rebase"
;;
--reference)
case "$2" in '') usage ;; esac
reference="--reference=$2"
orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
shift
;;
--reference=*)
reference="$1"
;;
-m|--merge)
update="merge"
;;
--recursive)
recursive=1
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
shift
done
if test -n "$init"
then
cmd_init "--" "$@" || return
fi
cloned_modules=
module_list "$@" |
while read mode sha1 stage path
do
if test "$stage" = U
then
echo >&2 "Skipping unmerged submodule $path"
continue
fi
name=$(module_name "$path") || exit
url=$(git config submodule."$name".url)
update_module=$(git config submodule."$name".update)
if test -z "$url"
then
test "$#" != "0" &&
say "Submodule path '$path' not initialized" &&
say "Maybe you want to use 'update --init'?"
continue
fi
if ! test -d "$path"/.git -o -f "$path"/.git
then
module_clone "$path" "$url" "$reference"|| exit
cloned_modules="$cloned_modules;$name"
subsha1=
else
subsha1=$(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=
if test -z "$subsha1"
then
force="-f"
fi
if test -z "$nofetch"
then
(clear_local_git_env; cd "$path" &&
( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
test -z "$rev") || git-fetch)) ||
die "Unable to fetch in submodule path '$path'"
fi
case ";$cloned_modules;" in
*";$name;"*)
update_module= ;;
esac
case "$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
if test -n "$recursive"
then
(clear_local_git_env; cd "$path" && eval cmd_update "$orig_flags") ||
die "Failed to recurse into submodule path '$path'"
fi
done
}
set_name_rev () {
revname=$( (
clear_local_git_env
cd "$1" && {
git describe "$2" 2>/dev/null ||
git describe --tags "$2" 2>/dev/null ||
git describe --contains "$2" 2>/dev/null ||
git describe --all --always "$2"
}
) )
test -z "$revname" || revname=" ($revname)"
}
cmd_summary() {
summary_limit=-1
for_status=
diff_cmd=diff-index
while test $ do
case "$1" in
--cached)
cached="$1"
;;
--files)
files="$1"
;;
--for-status)
for_status="$1"
;;
-n|--summary-limit)
if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
then
:
else
usage
fi
shift
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
test $summary_limit = 0 && return
if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
then
head=$rev
test $ elif test -z "$1" -o "$1" = "HEAD"
then
head=$(git hash-object -w -t tree --stdin </dev/null)
test -z "$1" || shift
else
head="HEAD"
fi
if [ -n "$files" ]
then
test -n "$cached" &&
die "--cached cannot be used with --files"
diff_cmd=diff-files
head=
fi
cd_to_toplevel
modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
sane_egrep '^:([0-7]* )?160000' |
while read mod_src mod_dst sha1_src sha1_dst status name
do
test $status = D -o $status = T && echo "$name" && continue
GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
echo "$name"
done
)
test -z "$modules" && return
git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
sane_egrep '^:([0-7]* )?160000' |
cut -c2- |
while read mod_src mod_dst sha1_src sha1_dst status name
do
if test -z "$cached" &&
test $sha1_dst = 0000000000000000000000000000000000000000
then
case "$mod_dst" in
160000)
sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
;;
100644 | 100755 | 120000)
sha1_dst=$(git hash-object $name)
;;
000000)
;; *)
echo >&2 "unexpected mode $mod_dst"
continue ;;
esac
fi
missing_src=
missing_dst=
test $mod_src = 160000 &&
! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
missing_src=t
test $mod_dst = 160000 &&
! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
missing_dst=t
total_commits=
case "$missing_src,$missing_dst" in
t,)
errmsg=" Warn: $name doesn't contain commit $sha1_src"
;;
,t)
errmsg=" Warn: $name doesn't contain commit $sha1_dst"
;;
t,t)
errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst"
;;
*)
errmsg=
total_commits=$(
if test $mod_src = 160000 -a $mod_dst = 160000
then
range="$sha1_src...$sha1_dst"
elif test $mod_src = 160000
then
range=$sha1_src
else
range=$sha1_dst
fi
GIT_DIR="$name/.git" \
git rev-list --first-parent $range -- | wc -l
)
total_commits=" ($(($total_commits + 0)))"
;;
esac
sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
if test $status = T
then
if test $mod_dst = 160000
then
echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:"
else
echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:"
fi
else
echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
fi
if test -n "$errmsg"
then
test $mod_dst = 160000 && echo "$errmsg"
else
if test $mod_src = 160000 -a $mod_dst = 160000
then
limit=
test $summary_limit -gt 0 && limit="-$summary_limit"
GIT_DIR="$name/.git" \
git log $limit --pretty='format: %m %s' \
--first-parent $sha1_src...$sha1_dst
elif test $mod_dst = 160000
then
GIT_DIR="$name/.git" \
git log --pretty='format: > %s' -1 $sha1_dst
else
GIT_DIR="$name/.git" \
git log --pretty='format: < %s' -1 $sha1_src
fi
echo
fi
echo
done |
if test -n "$for_status"; then
if [ -n "$files" ]; then
echo "# Submodules changed but not updated:"
else
echo "# Submodule changes to be committed:"
fi
echo "#"
sed -e 's|^| else
cat
fi
}
cmd_status()
{
orig_flags=
while test $ do
case "$1" in
-q|--quiet)
GIT_QUIET=1
;;
--cached)
cached=1
;;
--recursive)
recursive=1
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
shift
done
module_list "$@" |
while read mode sha1 stage path
do
name=$(module_name "$path") || exit
url=$(git config submodule."$name".url)
displaypath="$prefix$path"
if test "$stage" = U
then
say "U$sha1 $displaypath"
continue
fi
if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
then
say "-$sha1 $displaypath"
continue;
fi
set_name_rev "$path" "$sha1"
if git diff-files --ignore-submodules=dirty --quiet -- "$path"
then
say " $sha1 $displaypath$revname"
else
if test -z "$cached"
then
sha1=$(clear_local_git_env; cd "$path" && git rev-parse --verify HEAD)
set_name_rev "$path" "$sha1"
fi
say "+$sha1 $displaypath$revname"
fi
if test -n "$recursive"
then
(
prefix="$displaypath/"
clear_local_git_env
cd "$path" &&
eval cmd_status "$orig_args"
) ||
die "Failed to recurse into submodule path '$path'"
fi
done
}
cmd_sync()
{
while test $ do
case "$1" in
-q|--quiet)
GIT_QUIET=1
shift
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
done
cd_to_toplevel
module_list "$@" |
while read mode sha1 stage path
do
name=$(module_name "$path")
url=$(git config -f .gitmodules --get submodule."$name".url)
case "$url" in
./*|../*)
url=$(resolve_relative_url "$url") || exit
;;
esac
say "Synchronizing submodule url for '$name'"
git config submodule."$name".url "$url"
if test -e "$path"/.git
then
(
clear_local_git_env
cd "$path"
remote=$(get_default_remote)
git config remote."$remote".url "$url"
)
fi
done
}
while test $do
case "$1" in
add | foreach | init | update | status | summary | sync)
command=$1
;;
-q|--quiet)
GIT_QUIET=1
;;
-b|--branch)
case "$2" in
'')
usage
;;
esac
branch="$2"; shift
;;
--cached)
cached="$1"
;;
--)
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
test -n "$command" || command=status
if test -n "$branch" && test "$command" != add
then
usage
fi
if test -n "$cached" && test "$command" != status -a "$command" != summary
then
usage
fi
"cmd_$command" "$@"