From: Elijah Newren <newren@xxxxxxxxx>
When merge conflicts occur in paths removed by a sparse-checkout, we
need to unsparsify those paths (clear the SKIP_WORKTREE bit), and write
out the conflicted file to the working copy. In the very unlikely case
that someone manually put a file into the working copy at the location
of the SKIP_WORKTREE file, we need to avoid overwriting whatever edits
they have made and move that file to a different location first.
Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
merge-ort.c | 43 +++++++++++++++++++++----------
t/t6428-merge-conflicts-sparse.sh | 4 +--
2 files changed, 32 insertions(+), 15 deletions(-)
diff --git a/merge-ort.c b/merge-ort.c
index a998f843a1da..37b69cbe0f9a 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -3235,23 +3235,27 @@ static int checkout(struct merge_options *opt,
return ret;
}
-static int record_conflicted_index_entries(struct merge_options *opt,
- struct index_state *index,
- struct strmap *paths,
- struct strmap *conflicted)
+static int record_conflicted_index_entries(struct merge_options *opt)
{
struct hashmap_iter iter;
struct strmap_entry *e;
+ struct index_state *index = opt->repo->index;
+ struct checkout state = CHECKOUT_INIT;
int errs = 0;
int original_cache_nr;
- if (strmap_empty(conflicted))
+ if (strmap_empty(&opt->priv->conflicted))
return 0;
+ /* If any entries have skip_worktree set, we'll have to check 'em out */
+ state.force = 1;
+ state.quiet = 1;
+ state.refresh_cache = 1;
+ state.istate = index;
original_cache_nr = index->cache_nr;
/* Put every entry from paths into plist, then sort */
- strmap_for_each_entry(conflicted, &iter, e) {
+ strmap_for_each_entry(&opt->priv->conflicted, &iter, e) {
const char *path = e->key;
struct conflict_info *ci = e->value;
int pos;
@@ -3292,9 +3296,23 @@ static int record_conflicted_index_entries(struct merge_options *opt,
* the higher order stages. Thus, we need override
* the CE_SKIP_WORKTREE bit and manually write those
* files to the working disk here.
- *
- * TODO: Implement this CE_SKIP_WORKTREE fixup.
*/
+ if (ce_skip_worktree(ce)) {
+ struct stat st;
+
+ if (!lstat(path, &st)) {
+ char *new_name = unique_path(&opt->priv->paths,
+ path,
+ "cruft");
+
+ path_msg(opt, path, 1,
+ _("Note: %s not up to date and in way of checking out conflicted version; old copy renamed to %s"),
+ path, new_name);
+ errs |= rename(path, new_name);
+ free(new_name);
+ }
+ errs |= checkout_entry(ce, &state, NULL, NULL);
+ }
/*
* Mark this cache entry for removal and instead add
@@ -3344,8 +3362,6 @@ void merge_switch_to_result(struct merge_options *opt,
{
assert(opt->priv == NULL);
if (result->clean >= 0 && update_worktree_and_index) {
- struct merge_options_internal *opti = result->priv;
-
trace2_region_enter("merge", "checkout", opt->repo);
if (checkout(opt, head, result->tree)) {
/* failure to function */
@@ -3355,13 +3371,14 @@ void merge_switch_to_result(struct merge_options *opt,
trace2_region_leave("merge", "checkout", opt->repo);
trace2_region_enter("merge", "record_conflicted", opt->repo);
- if (record_conflicted_index_entries(opt, opt->repo->index,
- &opti->paths,
- &opti->conflicted)) {
+ opt->priv = result->priv;
+ if (record_conflicted_index_entries(opt)) {
/* failure to function */
+ opt->priv = NULL;
result->clean = -1;
return;
}
+ opt->priv = NULL;
trace2_region_leave("merge", "record_conflicted", opt->repo);
}
diff --git a/t/t6428-merge-conflicts-sparse.sh b/t/t6428-merge-conflicts-sparse.sh
index 1bb52ff6f38c..7e8bf497f821 100755
--- a/t/t6428-merge-conflicts-sparse.sh
+++ b/t/t6428-merge-conflicts-sparse.sh
@@ -76,7 +76,7 @@ test_setup_numerals () {
)
}
-test_expect_merge_algorithm success failure 'conflicting entries written to worktree even if sparse' '
+test_expect_success 'conflicting entries written to worktree even if sparse' '
test_setup_numerals plain &&
(
cd numerals_plain &&
@@ -112,7 +112,7 @@ test_expect_merge_algorithm success failure 'conflicting entries written to work
)
'
-test_expect_merge_algorithm failure failure 'present-despite-SKIP_WORKTREE handled reasonably' '
+test_expect_merge_algorithm failure success 'present-despite-SKIP_WORKTREE handled reasonably' '
test_setup_numerals in_the_way &&
(
cd numerals_in_the_way &&
--
gitgitgadget
