add boolean diff.suppress-blank-empty config option

diff --git a/git-submodule.sh b/git-submodule.sh
index 3eb78cc724187998aa9ecf71509325631b8668c9..b40f876a2ca9fe985cedc622ab28a9f461edc5ab 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -5,7 +5,7 @@
 # Copyright (c) 2007 Lars Hjemli
 
 USAGE="[--quiet] [--cached] \
-[add <repo> [-b branch]|status|init|update [-i|--init]|summary [-n|--summary-limit <n>] [<commit>]] \
+[add <repo> [-b branch] <path>]|[status|init|update [-i|--init]|summary [-n|--summary-limit <n>] [<commit>]] \
 [--] [<path>...]"
 OPTIONS_SPEC=
 . git-sh-setup
@@ -27,18 +27,6 @@ say()
        fi
 }
 
-# NEEDSWORK: identical function exists in get_repo_base in clone.sh
-get_repo_base() {
-       (
-               cd "`/bin/pwd`" &&
-               cd "$1" || cd "$1.git" &&
-               {
-                       cd .git
-                       pwd
-               }
-       ) 2>/dev/null
-}
-
 # Resolve relative url by appending to parent's url
 resolve_relative_url ()
 {
@@ -115,7 +103,7 @@ module_clone()
 #
 # Add a new submodule to the working tree, .gitmodules and the index
 #
-# $@ = repo [path]
+# $@ = repo path
 #
 # optional branch is stored in global branch variable
 #
@@ -150,16 +138,27 @@ cmd_add()
        repo=$1
        path=$2
 
-       if test -z "$repo"; then
+       if test -z "$repo" -o -z "$path"; then
                usage
        fi
 
-       # Guess path from repo if not specified or strip trailing slashes
-       if test -z "$path"; then
-               path=$(echo "$repo" | sed -e 's|/*$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
-       else
-               path=$(echo "$path" | sed -e 's|/*$||')
-       fi
+       # assure repo is absolute or relative to parent
+       case "$repo" in
+       ./*|../*)
+               # dereference source url relative to parent's url
+               realrepo=$(resolve_relative_url "$repo") || exit
+               ;;
+       *:*|/*)
+               # absolute url
+               realrepo=$repo
+               ;;
+       *)
+               die "repo URL: '$repo' must be absolute or begin with ./|../"
+       ;;
+       esac
+
+       # strip trailing slashes from path
+       path=$(echo "$path" | sed -e 's|/*$||')
 
        git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
        die "'$path' already exists in the index"
@@ -167,28 +166,23 @@ cmd_add()
        # perhaps the path exists and is already a git repo, else clone it
        if test -e "$path"
        then
-               if test -d "$path/.git" &&
-               test "$(unset GIT_DIR; cd $path; git rev-parse --git-dir)" = ".git"
+               if test -d "$path"/.git -o -f "$path"/.git
                then
                        echo "Adding existing repo at '$path' to the index"
                else
                        die "'$path' already exists and is not a valid git repo"
                fi
-       else
+
                case "$repo" in
                ./*|../*)
-                       # dereference source url relative to parent's url
-                       realrepo=$(resolve_relative_url "$repo") || exit
-                       ;;
+                       url=$(resolve_relative_url "$repo") || exit
+                   ;;
                *)
-                       # Turn the source into an absolute path if
-                       # it is local
-                       if base=$(get_repo_base "$repo"); then
-                               repo="$base"
-                       fi
-                       realrepo=$repo
+                       url="$repo"
                        ;;
                esac
+               git config submodule."$path".url "$url"
+       else
 
                module_clone "$path" "$realrepo" || exit
                (unset GIT_DIR; cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
@@ -270,6 +264,7 @@ cmd_update()
        do
                case "$1" in
                -q|--quiet)
+                       shift
                        quiet=1
                        ;;
                -i|--init)
@@ -287,7 +282,6 @@ cmd_update()
                        break
                        ;;
                esac
-               shift
        done
 
        git ls-files --stage -- "$@" | grep '^160000 ' |