Teach --recursive to submodule sync

diff --git a/git-submodule.sh b/git-submodule.sh
index aac575e74f833c9bce28b779733b28a7611246b2..0ca3af2151d4cf73305aa80c84ef05083c4408ee 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -11,7 +11,7 @@ USAGE="[--quiet] add [-b branch] [-f|--force] [--reference <repository>] [--] <r
    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>...]"
+   or: $dashless [--quiet] sync [--recursive] [--] [<path>...]"
 OPTIONS_SPEC=
 . git-sh-setup
 . git-sh-i18n
@@ -109,26 +109,48 @@ resolve_relative_url ()
 #
 module_list()
 {
-       git ls-files --error-unmatch --stage -- "$@" |
+       (
+               git ls-files --error-unmatch --stage -- "$@" ||
+               echo "unmatched pathspec exists"
+       ) |
        perl -e '
        my %unmerged = ();
        my ($null_sha1) = ("0" x 40);
+       my @out = ();
+       my $unmatched = 0;
        while (<STDIN>) {
+               if (/^unmatched pathspec/) {
+                       $unmatched = 1;
+                       next;
+               }
                chomp;
                my ($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";
+                               push @out, "$mode $null_sha1 U\t$path\n";
                        }
                        next;
                }
-               print "$_\n";
+               push @out, "$_\n";
+       }
+       if ($unmatched) {
+               print "#unmatched\n";
+       } else {
+               print for (@out);
        }
        '
 }
 
+die_if_unmatched ()
+{
+       if test "$1" = "#unmatched"
+       then
+               exit 1
+       fi
+}
+
 #
 # Map submodule path to submodule name
 #
@@ -385,6 +407,7 @@ cmd_foreach()
        module_list |
        while read mode sha1 stage sm_path
        do
+               die_if_unmatched "$mode"
                if test -e "$sm_path"/.git
                then
                        say "$(eval_gettext "Entering '\$prefix\$sm_path'")"
@@ -437,6 +460,7 @@ cmd_init()
        module_list "$@" |
        while read mode sha1 stage sm_path
        do
+               die_if_unmatched "$mode"
                name=$(module_name "$sm_path") || exit
 
                # Copy url setting when it is not set yet
@@ -537,6 +561,7 @@ cmd_update()
        err=
        while read mode sha1 stage sm_path
        do
+               die_if_unmatched "$mode"
                if test "$stage" = U
                then
                        echo >&2 "Skipping unmerged submodule $sm_path"
@@ -578,7 +603,7 @@ Maybe you want to use 'update --init'?")"
                        die "$(eval_gettext "Unable to find current revision in submodule path '\$sm_path'")"
                fi
 
-               if test "$subsha1" != "$sha1"
+               if test "$subsha1" != "$sha1" -o -n "$force"
                then
                        subforce=$force
                        # If we don't already have a -f flag and the submodule has never been checked out
@@ -932,6 +957,7 @@ cmd_status()
        module_list "$@" |
        while read mode sha1 stage sm_path
        do
+               die_if_unmatched "$mode"
                name=$(module_name "$sm_path") || exit
                url=$(git config submodule."$name".url)
                displaypath="$prefix$sm_path"
@@ -984,6 +1010,10 @@ cmd_sync()
                        GIT_QUIET=1
                        shift
                        ;;
+               --recursive)
+                       recursive=1
+                       shift
+                       ;;
                --)
                        shift
                        break
@@ -1000,6 +1030,7 @@ cmd_sync()
        module_list "$@" |
        while read mode sha1 stage sm_path
        do
+               die_if_unmatched "$mode"
                name=$(module_name "$sm_path")
                url=$(git config -f .gitmodules --get submodule."$name".url)
 
@@ -1024,7 +1055,7 @@ cmd_sync()
 
                if git config "submodule.$name.url" >/dev/null 2>/dev/null
                then
-                       say "$(eval_gettext "Synchronizing submodule url for '\$name'")"
+                       say "$(eval_gettext "Synchronizing submodule url for '\$prefix\$sm_path'")"
                        git config submodule."$name".url "$super_config_url"
 
                        if test -e "$sm_path"/.git
@@ -1034,6 +1065,12 @@ cmd_sync()
                                cd "$sm_path"
                                remote=$(get_default_remote)
                                git config remote."$remote".url "$sub_origin_url"
+
+                               if test -n "$recursive"
+                               then
+                                       prefix="$prefix$sm_path/"
+                                       eval cmd_sync
+                               fi
                        )
                        fi
                fi
@@ -1080,7 +1117,15 @@ do
 done
 
 # No command word defaults to "status"
-test -n "$command" || command=status
+if test -z "$command"
+then
+    if test $# = 0
+    then
+       command=status
+    else
+       usage
+    fi
+fi
 
 # "-b branch" is accepted only by "add"
 if test -n "$branch" && test "$command" != add