mv: allow moving nested submodules

When directories are moved using `git mv` all files in the directory
have been just moved, but no further action was taken on them. This
was done by assigning the mode = WORKING_DIRECTORY to the files
inside a moved directory.

submodules however need to update their link to the git directory as
well as updates to the .gitmodules file. By removing the condition of
`mode != INDEX` (the remaining modes are BOTH and WORKING_DIRECTORY) for
the required submodule actions, we perform these for submodules in a
moved directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/mv.c b/builtin/mv.c
index d1d43168ae79d0157f8adf9dc36a4d2683afe91b..c789501706ba96303e15492b7b95facd2e59c21e 100644 (file)
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -251,15 +251,18 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                int pos;
                if (show_only || verbose)
                        printf(_("Renaming %s to %s\n"), src, dst);
-               if (!show_only && mode != INDEX) {
-                       if (rename(src, dst) < 0 && !ignore_errors)
-                               die_errno(_("renaming '%s' failed"), src);
-                       if (submodule_gitfile[i]) {
-                               if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
-                                       connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
-                               if (!update_path_in_gitmodules(src, dst))
-                                       gitmodules_modified = 1;
-                       }
+               if (show_only)
+                       continue;
+               if (mode != INDEX && rename(src, dst) < 0) {
+                       if (ignore_errors)
+                               continue;
+                       die_errno(_("renaming '%s' failed"), src);
+               }
+               if (submodule_gitfile[i]) {
+                       if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
+                               connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
+                       if (!update_path_in_gitmodules(src, dst))
+                               gitmodules_modified = 1;
                }
 
                if (mode == WORKING_DIRECTORY)

diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index 7b56081137396680df58c887ffe7919d98f6480c..fcfc953f3de795dc6e6d3e48a38808940aeb52b7 100755 (executable)
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -292,6 +292,9 @@ test_expect_success 'setup submodule' '
        echo content >file &&
        git add file &&
        git commit -m "added sub and file" &&
+       mkdir -p deep/directory/hierachy &&
+       git submodule add ./. deep/directory/hierachy/sub &&
+       git commit -m "added another submodule" &&
        git branch submodule
 '
 
@@ -475,4 +478,17 @@ test_expect_success 'mv -k does not accidentally destroy submodules' '
        git checkout .
 '
 
+test_expect_success 'moving a submodule in nested directories' '
+       (
+               cd deep &&
+               git mv directory ../ &&
+               # git status would fail if the update of linking git dir to
+               # work dir of the submodule failed.
+               git status &&
+               git config -f ../.gitmodules submodule.deep/directory/hierachy/sub.path >../actual &&
+               echo "directory/hierachy/sub" >../expect
+       ) &&
+       test_cmp actual expect
+'
+
 test_done