Merge branch 'mg/maint-submodule-normalize-path'

* mg/maint-submodule-normalize-path:
git submodule: Fix adding of submodules at paths with ./, .. and //
git submodule: Add test cases for git submodule add

diff --git a/git-submodule.sh b/git-submodule.sh
index 204aab671ef78edc24acff4019a2f40a71a59020..0a27232b90456b5471ee64d5dcf9965ad73f28af 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -167,9 +167,18 @@ cmd_add()
        ;;
        esac
 
-       # strip trailing slashes from path
-       path=$(echo "$path" | sed -e 's|/*$||')
-
+       # normalize path:
+       # multiple //; leading ./; /./; /../; trailing /
+       path=$(printf '%s/\n' "$path" |
+               sed -e '
+                       s|//*|/|g
+                       s|^\(\./\)*||
+                       s|/\./|/|g
+                       :start
+                       s|\([^/]*\)/\.\./||
+                       tstart
+                       s|/*$||
+               ')
        git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
        die "'$path' already exists in the index"
 

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index b8cb2df6670a18ebf54fecbb97a48d0c07a06e2b..af690ec6c1f36871dbd0044d22ab78ab95103541 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -47,6 +47,55 @@ test_expect_success 'Prepare submodule testing' '
        GIT_CONFIG=.gitmodules git config submodule.example.url git://example.com/init.git
 '
 
+test_expect_success 'Prepare submodule add testing' '
+       submodurl=$(pwd)
+       (
+               mkdir addtest &&
+               cd addtest &&
+               git init
+       )
+'
+
+test_expect_success 'submodule add' '
+       (
+               cd addtest &&
+               git submodule add "$submodurl" submod &&
+               git submodule init
+       )
+'
+
+test_expect_success 'submodule add with ./ in path' '
+       (
+               cd addtest &&
+               git submodule add "$submodurl" ././dotsubmod/./frotz/./ &&
+               git submodule init
+       )
+'
+
+test_expect_success 'submodule add with // in path' '
+       (
+               cd addtest &&
+               git submodule add "$submodurl" slashslashsubmod///frotz// &&
+               git submodule init
+       )
+'
+
+test_expect_success 'submodule add with /.. in path' '
+       (
+               cd addtest &&
+               git submodule add "$submodurl" dotdotsubmod/../realsubmod/frotz/.. &&
+               git submodule init
+       )
+'
+
+test_expect_success 'submodule add with ./, /.. and // in path' '
+       (
+               cd addtest &&
+               git submodule add "$submodurl" dot/dotslashsubmod/./../..////realsubmod2/a/b/c/d/../../../../frotz//.. &&
+               git submodule init
+       )
+'
+
 test_expect_success 'status should fail for unmapped paths' '
        if git submodule status
        then