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-rwxr-xr-xgit-submodule.sh115
1 files changed, 77 insertions, 38 deletions
diff --git a/git-submodule.sh b/git-submodule.sh
index 9ebbab798d..d189a24c71 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -8,7 +8,7 @@ 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] update [--init] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
or: $dashless [--quiet] foreach [--recursive] <command>
or: $dashless [--quiet] sync [--] [<path>...]"
@@ -37,12 +37,24 @@ resolve_relative_url ()
die "remote ($remote) does not have a url defined in .git/config"
url="$1"
remoteurl=${remoteurl%/}
+ sep=/
while test -n "$url"
do
case "$url" in
../*)
url="${url#../}"
- remoteurl="${remoteurl%/*}"
+ case "$remoteurl" in
+ */*)
+ remoteurl="${remoteurl%/*}"
+ ;;
+ *:*)
+ remoteurl="${remoteurl%:*}"
+ sep=:
+ ;;
+ *)
+ die "cannot strip one component off url '$remoteurl'"
+ ;;
+ esac
;;
./*)
url="${url#./}"
@@ -51,7 +63,7 @@ resolve_relative_url ()
break;;
esac
done
- echo "$remoteurl/${url%/}"
+ echo "$remoteurl$sep${url%/}"
}
#
@@ -60,7 +72,24 @@ resolve_relative_url ()
#
module_list()
{
- git ls-files --error-unmatch --stage -- "$@" | sane_grep '^160000 '
+ git ls-files --error-unmatch --stage -- "$@" |
+ 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";
+ }
+ '
}
#
@@ -93,20 +122,6 @@ module_clone()
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
- # action) and try to remove it.
- # Note: if $path is a symlink to a directory the test will
- # succeed but the rmdir will fail. We might want to fix this.
- if test -d "$path"
- then
- rmdir "$path" 2>/dev/null ||
- die "Directory '$path' exists, but is neither empty nor a git repository"
- fi
-
- test -e "$path" &&
- die "A file already exist at path '$path'"
-
if test -n "$reference"
then
git-clone "$reference" -n "$url" "$path"
@@ -241,7 +256,7 @@ cmd_add()
# ash fails to wordsplit ${branch:+-b "$branch"...}
case "$branch" in
'') git checkout -f -q ;;
- ?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
+ ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
esac
) || die "Unable to checkout submodule '$path'"
fi
@@ -374,41 +389,38 @@ cmd_init()
cmd_update()
{
# parse $args after "submodule ... update".
- orig_args="$@"
+ orig_flags=
while test $# -ne 0
do
case "$1" in
-q|--quiet)
- shift
GIT_QUIET=1
;;
-i|--init)
init=1
- shift
;;
-N|--no-fetch)
- shift
nofetch=1
;;
+ -f|--force)
+ force=$1
+ ;;
-r|--rebase)
- shift
update="rebase"
;;
--reference)
case "$2" in '') usage ;; esac
reference="--reference=$2"
- shift 2
+ orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
+ shift
;;
--reference=*)
reference="$1"
- shift
;;
-m|--merge)
- shift
update="merge"
;;
--recursive)
- shift
recursive=1
;;
--)
@@ -422,6 +434,8 @@ cmd_update()
break
;;
esac
+ orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
+ shift
done
if test -n "$init"
@@ -429,9 +443,15 @@ cmd_update()
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."$name".update)
@@ -448,6 +468,7 @@ cmd_update()
if ! test -d "$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" &&
@@ -462,19 +483,30 @@ cmd_update()
if test "$subsha1" != "$sha1"
then
- force=
- if test -z "$subsha1"
+ subforce=$force
+ # If we don't already have a -f flag and the submodule has never been checked out
+ if test -z "$subsha1" -a -z "$force"
then
- force="-f"
+ subforce="-f"
fi
if test -z "$nofetch"
then
+ # Run fetch only if $sha1 isn't present or it
+ # is not reachable from a ref.
(clear_local_git_env; cd "$path" &&
- git-fetch) ||
+ ( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
+ test -z "$rev") || git-fetch)) ||
die "Unable to fetch in submodule path '$path'"
fi
+ # Is this something we just cloned?
+ case ";$cloned_modules;" in
+ *";$name;"*)
+ # then there is no local change to integrate
+ update_module= ;;
+ esac
+
case "$update_module" in
rebase)
command="git rebase"
@@ -487,7 +519,7 @@ cmd_update()
msg="merged in"
;;
*)
- command="git checkout $force -q"
+ command="git checkout $subforce -q"
action="checkout"
msg="checked out"
;;
@@ -500,7 +532,7 @@ cmd_update()
if test -n "$recursive"
then
- (clear_local_git_env; cd "$path" && cmd_update $orig_args) ||
+ (clear_local_git_env; cd "$path" && eval cmd_update "$orig_flags") ||
die "Failed to recurse into submodule path '$path'"
fi
done
@@ -733,7 +765,7 @@ cmd_summary() {
cmd_status()
{
# parse $args after "submodule ... status".
- orig_args="$@"
+ orig_flags=
while test $# -ne 0
do
case "$1" in
@@ -757,6 +789,7 @@ cmd_status()
break
;;
esac
+ orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
shift
done
@@ -766,6 +799,11 @@ cmd_status()
name=$(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 $displaypath"
@@ -790,7 +828,7 @@ cmd_status()
prefix="$displaypath/"
clear_local_git_env
cd "$path" &&
- cmd_status $orig_args
+ eval cmd_status "$orig_args"
) ||
die "Failed to recurse into submodule path '$path'"
fi
@@ -836,11 +874,12 @@ cmd_sync()
;;
esac
+ say "Synchronizing submodule url for '$name'"
+ git config submodule."$name".url "$url"
+
if test -e "$path"/.git
then
(
- say "Synchronizing submodule url for '$name'"
- git config submodule."$name".url "$url"
clear_local_git_env
cd "$path"
remote=$(get_default_remote)