bisect: introduce support for --no-checkout option.

diff --git a/git-submodule.sh b/git-submodule.sh
index cfd5aa60491a88534aeacb7fe70141aa391675a9..bc1d3fa663a5eb39dd96f6ad2ca17437073ceb0a 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -35,7 +35,7 @@ resolve_relative_url ()
 {
        remote=$(get_default_remote)
        remoteurl=$(git config "remote.$remote.url") ||
-               die "$(eval_gettext "remote (\$remote) does not have a url defined in .git/config")"
+               remoteurl=$(pwd) # the repository is its own authoritative upstream
        url="$1"
        remoteurl=${remoteurl%/}
        sep=/
@@ -242,15 +242,6 @@ Use -f if you really want to add it." &&
                        die "$(eval_gettext "'\$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" "$reference" || exit
@@ -264,6 +255,7 @@ Use -f if you really want to add it." &&
                        esac
                ) || die "$(eval_gettext "Unable to checkout submodule '\$path'")"
        fi
+       git config submodule."$path".url "$realrepo"
 
        git add $force "$path" ||
        die "$(eval_gettext "Failed to add submodule '\$path'")"
@@ -304,6 +296,10 @@ cmd_foreach()
 
        toplevel=$(pwd)
 
+       # dup stdin so that it can be restored when running the external
+       # command in the subshell (and a recursive call to this function)
+       exec 3<&0
+
        module_list |
        while read mode sha1 stage path
        do
@@ -320,7 +316,7 @@ cmd_foreach()
                                then
                                        cmd_foreach "--recursive" "$@"
                                fi
-                       ) ||
+                       ) <&3 3<&- ||
                        die "$(eval_gettext "Stopping at '\$path'; script returned non-zero status.")"
                fi
        done
@@ -359,25 +355,26 @@ cmd_init()
        do
                # Skip already registered paths
                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 "$(eval_gettext "No url found for submodule path '\$path' in .gitmodules")"
-
-               # Possibly a url relative to parent
-               case "$url" in
-               ./*|../*)
-                       url=$(resolve_relative_url "$url") || exit
-                       ;;
-               esac
-
-               git config submodule."$name".url "$url" ||
-               die "$(eval_gettext "Failed to register url for submodule path '\$path'")"
+               if test -z "$(git config "submodule.$name.url")"
+               then
+                       url=$(git config -f .gitmodules submodule."$name".url)
+                       test -z "$url" &&
+                       die "$(eval_gettext "No url found for submodule path '\$path' in .gitmodules")"
+
+                       # Possibly a url relative to parent
+                       case "$url" in
+                       ./*|../*)
+                               url=$(resolve_relative_url "$url") || exit
+                               ;;
+                       esac
+                       git config submodule."$name".url "$url" ||
+                       die "$(eval_gettext "Failed to register url for submodule path '\$path'")"
+               fi
 
+               # Copy "update" setting when it is not set yet
                upd="$(git config -f .gitmodules submodule."$name".update)"
                test -z "$upd" ||
+               test -n "$(git config submodule."$name".update)" ||
                git config submodule."$name".update "$upd" ||
                die "$(eval_gettext "Failed to register update mode for submodule path '\$path'")"
 
@@ -921,17 +918,20 @@ cmd_sync()
                        ;;
                esac
 
-               say "$(eval_gettext "Synchronizing submodule url for '\$name'")"
-               git config submodule."$name".url "$url"
-
-               if test -e "$path"/.git
+               if git config "submodule.$name.url" >/dev/null 2>/dev/null
                then
-               (
-                       clear_local_git_env
-                       cd "$path"
-                       remote=$(get_default_remote)
-                       git config remote."$remote".url "$url"
-               )
+                       say "$(eval_gettext "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
                fi
        done
 }