remote: refactor some logic into get_stale_heads()

diff --git a/git-submodule.sh b/git-submodule.sh
index ebed711da41a7ac3c4caa7ae9b7f73e0c75f4fe7..0462e529d934750fb63a5a897f135d60ac674b5e 100755 (executable)
--- 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] [--rebase|--merge]|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
@@ -16,8 +21,10 @@ command=
 branch=
 reference=
 cached=
+files=
 nofetch=
 update=
+prefix=
 
 # Resolve relative url by appending to parent's url
 resolve_relative_url ()
@@ -91,7 +98,7 @@ 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" &&
@@ -237,13 +244,43 @@ 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$path/"
+                               unset GIT_DIR
+                               cd "$path" &&
+                               eval "$@" &&
+                               if test -n "$recursive"
+                               then
+                                       cmd_foreach "--recursive" "$@"
+                               fi
+                       ) ||
                        die "Stopping at '$path'; script returned non-zero status."
                fi
        done
@@ -316,6 +353,7 @@ cmd_init()
 cmd_update()
 {
        # parse $args after "submodule ... update".
+       orig_args="$@"
        while test $# -ne 0
        do
                case "$1" in
@@ -348,6 +386,10 @@ cmd_update()
                        shift
                        update="merge"
                        ;;
+               --recursive)
+                       shift
+                       recursive=1
+                       ;;
                --)
                        shift
                        break
@@ -434,6 +476,12 @@ cmd_update()
                        die "Unable to $action '$sha1' in submodule path '$path'"
                        say "Submodule path '$path': $msg '$sha1'"
                fi
+
+               if test -n "$recursive"
+               then
+                       (unset GIT_DIR; cd "$path" && cmd_update $orig_args) ||
+                       die "Failed to recurse into submodule path '$path'"
+               fi
        done
 }
 
@@ -460,6 +508,7 @@ set_name_rev () {
 cmd_summary() {
        summary_limit=-1
        for_status=
+       diff_cmd=diff-index
 
        # parse $args after "submodule ... summary".
        while test $# -ne 0
@@ -468,6 +517,9 @@ cmd_summary() {
                --cached)
                        cached="$1"
                        ;;
+               --files)
+                       files="$1"
+                       ;;
                --for-status)
                        for_status="$1"
                        ;;
@@ -504,9 +556,17 @@ 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 $head -- "$@" |
+       modules=$(git $diff_cmd $cached --raw $head -- "$@" |
                egrep '^:([0-7]* )?160000' |
                while read mod_src mod_dst sha1_src sha1_dst status name
                do
@@ -520,7 +580,7 @@ cmd_summary() {
 
        test -z "$modules" && return
 
-       git diff-index $cached --raw $head -- $modules |
+       git $diff_cmd $cached --raw $head -- $modules |
        egrep '^:([0-7]* )?160000' |
        cut -c2- |
        while read mod_src mod_dst sha1_src sha1_dst status name
@@ -643,6 +703,7 @@ cmd_summary() {
 cmd_status()
 {
        # parse $args after "submodule ... status".
+       orig_args="$@"
        while test $# -ne 0
        do
                case "$1" in
@@ -652,6 +713,9 @@ cmd_status()
                --cached)
                        cached=1
                        ;;
+               --recursive)
+                       recursive=1
+                       ;;
                --)
                        shift
                        break
@@ -671,22 +735,34 @@ cmd_status()
        do
                name=$(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 "$path" && git rev-parse --verify HEAD)
                                set_name_rev "$path" "$sha1"
                        fi
-                       say "+$sha1 $path$revname"
+                       say "+$sha1 $displaypath$revname"
+               fi
+
+               if test -n "$recursive"
+               then
+                       (
+                               prefix="$displaypath/"
+                               unset GIT_DIR
+                               cd "$path" &&
+                               cmd_status $orig_args
+                       ) ||
+                       die "Failed to recurse into submodule path '$path'"
                fi
        done
 }