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Merge branch 'jc/fake-ancestor-with-non-blobs' into maint

Rebasing the history of superproject with change in the submodule
has been broken since v1.7.12.

* jc/fake-ancestor-with-non-blobs:
  apply: diagnose incomplete submodule object name better
  apply: simplify build_fake_ancestor()
  git-am: record full index line in the patch used while rebasing
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2 parents 45bb6cb + e28efb1 commit 427c6d0caf0caee5ad2c4925910a6b8ebcf95408 @gitster committed Feb 7, 2013
Showing with 45 additions and 17 deletions.
  1. +16 −14 builtin/apply.c
  2. +1 −1 git-am.sh
  3. +28 −2 t/t7402-submodule-rebase.sh
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@@ -3609,28 +3609,30 @@ static void build_fake_ancestor(struct patch *list, const char *filename)
* worth showing the new sha1 prefix, but until then...
*/
for (patch = list; patch; patch = patch->next) {
- const unsigned char *sha1_ptr;
unsigned char sha1[20];
struct cache_entry *ce;
const char *name;
name = patch->old_name ? patch->old_name : patch->new_name;
if (0 < patch->is_new)
continue;
- else if (get_sha1_blob(patch->old_sha1_prefix, sha1))
- /* git diff has no index line for mode/type changes */
- if (!patch->lines_added && !patch->lines_deleted) {
- if (get_current_sha1(patch->old_name, sha1))
- die("mode change for %s, which is not "
- "in current HEAD", name);
- sha1_ptr = sha1;
- } else
- die("sha1 information is lacking or useless "
- "(%s).", name);
- else
- sha1_ptr = sha1;
- ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0);
+ if (S_ISGITLINK(patch->old_mode)) {
+ if (get_sha1_hex(patch->old_sha1_prefix, sha1))
+ die("submoule change for %s without full index name",
+ name);
+ } else if (!get_sha1_blob(patch->old_sha1_prefix, sha1)) {
+ ; /* ok */
+ } else if (!patch->lines_added && !patch->lines_deleted) {
+ /* mode-only change: update the current */
+ if (get_current_sha1(patch->old_name, sha1))
+ die("mode change for %s, which is not "
+ "in current HEAD", name);
+ } else
+ die("sha1 information is lacking or useless "
+ "(%s).", name);
+
+ ce = make_cache_entry(patch->old_mode, sha1, name, 0, 0);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), name);
if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))
View
@@ -664,7 +664,7 @@ do
sed -e '1,/^$/d' >"$dotest/msg-clean"
echo "$commit" >"$dotest/original-commit"
get_author_ident_from_commit "$commit" >"$dotest/author-script"
- git diff-tree --root --binary "$commit" >"$dotest/patch"
+ git diff-tree --root --binary --full-index "$commit" >"$dotest/patch"
else
git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
<"$dotest/$msgnum" >"$dotest/info" ||
@@ -3,7 +3,7 @@
# Copyright (c) 2008 Johannes Schindelin
#
-test_description='Test rebasing and stashing with dirty submodules'
+test_description='Test rebasing, stashing, etc. with submodules'
. ./test-lib.sh
@@ -20,7 +20,8 @@ test_expect_success setup '
echo second line >> file &&
(cd submodule && git pull) &&
test_tick &&
- git commit -m file-and-submodule -a
+ git commit -m file-and-submodule -a &&
+ git branch added-submodule
'
@@ -89,4 +90,29 @@ test_expect_success 'stash with a dirty submodule' '
'
+test_expect_success 'rebasing submodule that should conflict' '
+ git reset --hard &&
+ git checkout added-submodule &&
+ git add submodule &&
+ test_tick &&
+ git commit -m third &&
+ (
+ cd submodule &&
+ git commit --allow-empty -m extra
+ ) &&
+ git add submodule &&
+ test_tick &&
+ git commit -m fourth &&
+
+ test_must_fail git rebase --onto HEAD^^ HEAD^ HEAD^0 &&
+ git ls-files -s submodule >actual &&
+ (
+ cd submodule &&
+ echo "160000 $(git rev-parse HEAD^) 1 submodule" &&
+ echo "160000 $(git rev-parse HEAD^^) 2 submodule" &&
+ echo "160000 $(git rev-parse HEAD) 3 submodule"
+ ) >expect &&
+ test_cmp expect actual
+'
+
test_done

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