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merge-recursive.c: remove implicit dependency on the_index

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
tags/v2.21.0-rc0
Nguyễn Thái Ngọc Duy Junio C Hamano 9 months ago
parent
commit
0d6caa2d08
7 changed files with 91 additions and 75 deletions
  1. 1
    1
      builtin/am.c
  2. 1
    1
      builtin/checkout.c
  3. 1
    1
      builtin/merge-recursive.c
  4. 1
    1
      builtin/merge.c
  5. 80
    68
      merge-recursive.c
  6. 5
    1
      merge-recursive.h
  7. 2
    2
      sequencer.c

+ 1
- 1
builtin/am.c View File

@@ -1545,7 +1545,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
* changes.
*/

init_merge_options(&o);
init_merge_options(&o, the_repository);

o.branch1 = "HEAD";
their_tree_name = xstrfmt("%.*s", linelen(state->msg), state->msg);

+ 1
- 1
builtin/checkout.c View File

@@ -670,7 +670,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
* a pain; plumb in an option to set
* o.renormalize?
*/
init_merge_options(&o);
init_merge_options(&o, the_repository);
o.verbosity = 0;
work = write_tree_from_memory(&o);


+ 1
- 1
builtin/merge-recursive.c View File

@@ -28,7 +28,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
struct merge_options o;
struct commit *result;

init_merge_options(&o);
init_merge_options(&o, the_repository);
if (argv[0] && ends_with(argv[0], "-subtree"))
o.subtree_shift = "";


+ 1
- 1
builtin/merge.c View File

@@ -702,7 +702,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
return 2;
}

init_merge_options(&o);
init_merge_options(&o, the_repository);
if (!strcmp(strategy, "subtree"))
o.subtree_shift = "";


+ 80
- 68
merge-recursive.c View File

@@ -343,22 +343,24 @@ static int add_cacheinfo(struct merge_options *o,
unsigned int mode, const struct object_id *oid,
const char *path, int stage, int refresh, int options)
{
struct index_state *istate = o->repo->index;
struct cache_entry *ce;
int ret;

ce = make_cache_entry(&the_index, mode, oid ? oid : &null_oid, path, stage, 0);
ce = make_cache_entry(istate, mode, oid ? oid : &null_oid, path, stage, 0);
if (!ce)
return err(o, _("add_cacheinfo failed for path '%s'; merge aborting."), path);

ret = add_cache_entry(ce, options);
ret = add_index_entry(istate, ce, options);
if (refresh) {
struct cache_entry *nce;

nce = refresh_cache_entry(&the_index, ce, CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING);
nce = refresh_cache_entry(istate, ce,
CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING);
if (!nce)
return err(o, _("add_cacheinfo failed to refresh for path '%s'; merge aborting."), path);
if (nce != ce)
ret = add_cache_entry(nce, options);
ret = add_index_entry(istate, nce, options);
}
return ret;
}
@@ -386,7 +388,7 @@ static int unpack_trees_start(struct merge_options *o,
o->unpack_opts.merge = 1;
o->unpack_opts.head_idx = 2;
o->unpack_opts.fn = threeway_merge;
o->unpack_opts.src_index = &the_index;
o->unpack_opts.src_index = o->repo->index;
o->unpack_opts.dst_index = &tmp_index;
o->unpack_opts.aggressive = !merge_detect_rename(o);
setup_unpack_trees_porcelain(&o->unpack_opts, "merge");
@@ -396,16 +398,16 @@ static int unpack_trees_start(struct merge_options *o,
init_tree_desc_from_tree(t+2, merge);

rc = unpack_trees(3, t, &o->unpack_opts);
cache_tree_free(&active_cache_tree);
cache_tree_free(&o->repo->index->cache_tree);

/*
* Update the_index to match the new results, AFTER saving a copy
* Update o->repo->index to match the new results, AFTER saving a copy
* in o->orig_index. Update src_index to point to the saved copy.
* (verify_uptodate() checks src_index, and the original index is
* the one that had the necessary modification timestamps.)
*/
o->orig_index = the_index;
the_index = tmp_index;
o->orig_index = *o->repo->index;
*o->repo->index = tmp_index;
o->unpack_opts.src_index = &o->orig_index;

return rc;
@@ -420,12 +422,13 @@ static void unpack_trees_finish(struct merge_options *o)
struct tree *write_tree_from_memory(struct merge_options *o)
{
struct tree *result = NULL;
struct index_state *istate = o->repo->index;

if (unmerged_cache()) {
if (unmerged_index(istate)) {
int i;
fprintf(stderr, "BUG: There are unmerged index entries:\n");
for (i = 0; i < active_nr; i++) {
const struct cache_entry *ce = active_cache[i];
for (i = 0; i < istate->cache_nr; i++) {
const struct cache_entry *ce = istate->cache[i];
if (ce_stage(ce))
fprintf(stderr, "BUG: %d %.*s\n", ce_stage(ce),
(int)ce_namelen(ce), ce->name);
@@ -433,16 +436,16 @@ struct tree *write_tree_from_memory(struct merge_options *o)
BUG("unmerged index entries in merge-recursive.c");
}

if (!active_cache_tree)
active_cache_tree = cache_tree();
if (!istate->cache_tree)
istate->cache_tree = cache_tree();

if (!cache_tree_fully_valid(active_cache_tree) &&
cache_tree_update(&the_index, 0) < 0) {
if (!cache_tree_fully_valid(istate->cache_tree) &&
cache_tree_update(istate, 0) < 0) {
err(o, _("error building trees"));
return NULL;
}

result = lookup_tree(the_repository, &active_cache_tree->oid);
result = lookup_tree(the_repository, &istate->cache_tree->oid);

return result;
}
@@ -512,17 +515,17 @@ static struct stage_data *insert_stage_data(const char *path,
* Create a dictionary mapping file names to stage_data objects. The
* dictionary contains one entry for every path with a non-zero stage entry.
*/
static struct string_list *get_unmerged(void)
static struct string_list *get_unmerged(struct index_state *istate)
{
struct string_list *unmerged = xcalloc(1, sizeof(struct string_list));
int i;

unmerged->strdup_strings = 1;

for (i = 0; i < active_nr; i++) {
for (i = 0; i < istate->cache_nr; i++) {
struct string_list_item *item;
struct stage_data *e;
const struct cache_entry *ce = active_cache[i];
const struct cache_entry *ce = istate->cache[i];
if (!ce_stage(ce))
continue;

@@ -682,7 +685,7 @@ static int update_stages(struct merge_options *opt, const char *path,
int clear = 1;
int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
if (clear)
if (remove_file_from_cache(path))
if (remove_file_from_index(opt->repo->index, path))
return -1;
if (o)
if (add_cacheinfo(opt, o->mode, &o->oid, path, 1, 0, options))
@@ -717,13 +720,14 @@ static int remove_file(struct merge_options *o, int clean,
int update_working_directory = !o->call_depth && !no_wd;

if (update_cache) {
if (remove_file_from_cache(path))
if (remove_file_from_index(o->repo->index, path))
return -1;
}
if (update_working_directory) {
if (ignore_case) {
struct cache_entry *ce;
ce = cache_file_exists(path, strlen(path), ignore_case);
ce = index_file_exists(o->repo->index, path, strlen(path),
ignore_case);
if (ce && ce_stage(ce) == 0 && strcmp(path, ce->name))
return 0;
}
@@ -773,7 +777,8 @@ static char *unique_path(struct merge_options *o, const char *path, const char *
* check the working directory. If empty_ok is non-zero, also return
* 0 in the case where the working-tree dir exists but is empty.
*/
static int dir_in_way(const char *path, int check_working_copy, int empty_ok)
static int dir_in_way(struct index_state *istate, const char *path,
int check_working_copy, int empty_ok)
{
int pos;
struct strbuf dirpath = STRBUF_INIT;
@@ -782,12 +787,12 @@ static int dir_in_way(const char *path, int check_working_copy, int empty_ok)
strbuf_addstr(&dirpath, path);
strbuf_addch(&dirpath, '/');

pos = cache_name_pos(dirpath.buf, dirpath.len);
pos = index_name_pos(istate, dirpath.buf, dirpath.len);

if (pos < 0)
pos = -1 - pos;
if (pos < active_nr &&
!strncmp(dirpath.buf, active_cache[pos]->name, dirpath.len)) {
if (pos < istate->cache_nr &&
!strncmp(dirpath.buf, istate->cache[pos]->name, dirpath.len)) {
strbuf_release(&dirpath);
return 1;
}
@@ -830,8 +835,10 @@ static int was_tracked(struct merge_options *o, const char *path)
return 0;
}

static int would_lose_untracked(const char *path)
static int would_lose_untracked(struct merge_options *o, const char *path)
{
struct index_state *istate = o->repo->index;

/*
* This may look like it can be simplified to:
* return !was_tracked(o, path) && file_exists(path)
@@ -849,19 +856,19 @@ static int would_lose_untracked(const char *path)
* update_file()/would_lose_untracked(); see every comment in this
* file which mentions "update_stages".
*/
int pos = cache_name_pos(path, strlen(path));
int pos = index_name_pos(istate, path, strlen(path));

if (pos < 0)
pos = -1 - pos;
while (pos < active_nr &&
!strcmp(path, active_cache[pos]->name)) {
while (pos < istate->cache_nr &&
!strcmp(path, istate->cache[pos]->name)) {
/*
* If stage #0, it is definitely tracked.
* If it has stage #2 then it was tracked
* before this merge started. All other
* cases the path was not tracked.
*/
switch (ce_stage(active_cache[pos])) {
switch (ce_stage(istate->cache[pos])) {
case 0:
case 2:
return 0;
@@ -921,7 +928,7 @@ static int make_room_for_path(struct merge_options *o, const char *path)
* Do not unlink a file in the work tree if we are not
* tracking it.
*/
if (would_lose_untracked(path))
if (would_lose_untracked(o, path))
return err(o, _("refusing to lose untracked file at '%s'"),
path);

@@ -971,7 +978,7 @@ static int update_file_flags(struct merge_options *o,
}
if (S_ISREG(mode)) {
struct strbuf strbuf = STRBUF_INIT;
if (convert_to_working_tree(&the_index, path, buf, size, &strbuf)) {
if (convert_to_working_tree(o->repo->index, path, buf, size, &strbuf)) {
free(buf);
size = strbuf.len;
buf = strbuf_detach(&strbuf, NULL);
@@ -1091,7 +1098,7 @@ static int merge_3way(struct merge_options *o,

merge_status = ll_merge(result_buf, a->path, &orig, base_name,
&src1, name1, &src2, name2,
&the_index, &ll_opts);
o->repo->index, &ll_opts);

free(base_name);
free(name1);
@@ -1102,7 +1109,8 @@ static int merge_3way(struct merge_options *o,
return merge_status;
}

static int find_first_merges(struct object_array *result, const char *path,
static int find_first_merges(struct repository *repo,
struct object_array *result, const char *path,
struct commit *a, struct commit *b)
{
int i, j;
@@ -1122,7 +1130,7 @@ static int find_first_merges(struct object_array *result, const char *path,
/* get all revisions that merge commit a */
xsnprintf(merged_revision, sizeof(merged_revision), "^%s",
oid_to_hex(&a->object.oid));
repo_init_revisions(the_repository, &revs, NULL);
repo_init_revisions(repo, &revs, NULL);
rev_opts.submodule = path;
/* FIXME: can't handle linked worktrees in submodules yet */
revs.single_worktree = path != NULL;
@@ -1252,7 +1260,8 @@ static int merge_submodule(struct merge_options *o,
return 0;

/* find commit which merges them */
parent_count = find_first_merges(&merges, path, commit_a, commit_b);
parent_count = find_first_merges(o->repo, &merges, path,
commit_a, commit_b);
switch (parent_count) {
case 0:
output(o, 1, _("Failed to merge submodule %s (merge following commits not found)"), path);
@@ -1400,7 +1409,7 @@ static int handle_rename_via_dir(struct merge_options *o,
*/
const struct diff_filespec *dest = pair->two;

if (!o->call_depth && would_lose_untracked(dest->path)) {
if (!o->call_depth && would_lose_untracked(o, dest->path)) {
char *alt_path = unique_path(o, dest->path, rename_branch);

output(o, 1, _("Error: Refusing to lose untracked file at %s; "
@@ -1438,8 +1447,8 @@ static int handle_change_delete(struct merge_options *o,
const char *update_path = path;
int ret = 0;

if (dir_in_way(path, !o->call_depth, 0) ||
(!o->call_depth && would_lose_untracked(path))) {
if (dir_in_way(o->repo->index, path, !o->call_depth, 0) ||
(!o->call_depth && would_lose_untracked(o, path))) {
update_path = alt_path = unique_path(o, path, change_branch);
}

@@ -1449,7 +1458,7 @@ static int handle_change_delete(struct merge_options *o,
* correct; since there is no true "middle point" between
* them, simply reuse the base version for virtual merge base.
*/
ret = remove_file_from_cache(path);
ret = remove_file_from_index(o->repo->index, path);
if (!ret)
ret = update_file(o, 0, o_oid, o_mode, update_path);
} else {
@@ -1525,7 +1534,7 @@ static int handle_rename_delete(struct merge_options *o,
return -1;

if (o->call_depth)
return remove_file_from_cache(dest->path);
return remove_file_from_index(o->repo->index, dest->path);
else
return update_stages(o, dest->path, NULL,
rename_branch == o->branch1 ? dest : NULL,
@@ -1606,10 +1615,10 @@ static int handle_file_collision(struct merge_options *o,
/* Remove rename sources if rename/add or rename/rename(2to1) */
if (prev_path1)
remove_file(o, 1, prev_path1,
o->call_depth || would_lose_untracked(prev_path1));
o->call_depth || would_lose_untracked(o, prev_path1));
if (prev_path2)
remove_file(o, 1, prev_path2,
o->call_depth || would_lose_untracked(prev_path2));
o->call_depth || would_lose_untracked(o, prev_path2));

/*
* Remove the collision path, if it wouldn't cause dirty contents
@@ -1620,7 +1629,7 @@ static int handle_file_collision(struct merge_options *o,
output(o, 1, _("Refusing to lose dirty file at %s"),
collide_path);
update_path = alt_path = unique_path(o, collide_path, "merged");
} else if (would_lose_untracked(collide_path)) {
} else if (would_lose_untracked(o, collide_path)) {
/*
* Only way we get here is if both renames were from
* a directory rename AND user had an untracked file
@@ -1716,12 +1725,12 @@ static char *find_path_for_conflict(struct merge_options *o,
const char *branch2)
{
char *new_path = NULL;
if (dir_in_way(path, !o->call_depth, 0)) {
if (dir_in_way(o->repo->index, path, !o->call_depth, 0)) {
new_path = unique_path(o, path, branch1);
output(o, 1, _("%s is a directory in %s adding "
"as %s instead"),
path, branch2, new_path);
} else if (would_lose_untracked(path)) {
} else if (would_lose_untracked(o, path)) {
new_path = unique_path(o, path, branch1);
output(o, 1, _("Refusing to lose untracked file"
" at %s; adding as %s instead"),
@@ -1782,14 +1791,14 @@ static int handle_rename_rename_1to2(struct merge_options *o,
return -1;
}
else
remove_file_from_cache(a->path);
remove_file_from_index(o->repo->index, a->path);
add = filespec_from_entry(&other, ci->dst_entry2, 3 ^ 1);
if (add) {
if (update_file(o, 0, &add->oid, add->mode, b->path))
return -1;
}
else
remove_file_from_cache(b->path);
remove_file_from_index(o->repo->index, b->path);
} else {
/*
* For each destination path, we need to see if there is a
@@ -1886,7 +1895,7 @@ static struct diff_queue_struct *get_diffpairs(struct merge_options *o,
struct diff_queue_struct *ret;
struct diff_options opts;

repo_diff_setup(the_repository, &opts);
repo_diff_setup(o->repo, &opts);
opts.flags.recursive = 1;
opts.flags.rename_empty = 0;
opts.detect_rename = merge_detect_rename(o);
@@ -3041,8 +3050,8 @@ static int blob_unchanged(struct merge_options *opt,
* performed. Comparison can be skipped if both files are
* unchanged since their sha1s have already been compared.
*/
if (renormalize_buffer(&the_index, path, o.buf, o.len, &o) |
renormalize_buffer(&the_index, path, a.buf, a.len, &a))
if (renormalize_buffer(opt->repo->index, path, o.buf, o.len, &o) |
renormalize_buffer(opt->repo->index, path, a.buf, a.len, &a))
ret = (o.len == a.len && !memcmp(o.buf, a.buf, o.len));

error_return:
@@ -3123,7 +3132,7 @@ static int handle_content_merge(struct merge_options *o,
a.path = (char *)path1;
b.path = (char *)path2;

if (dir_in_way(path, !o->call_depth,
if (dir_in_way(o->repo->index, path, !o->call_depth,
S_ISGITLINK(pair1->two->mode)))
df_conflict_remains = 1;
}
@@ -3157,8 +3166,8 @@ static int handle_content_merge(struct merge_options *o,
pos = index_name_pos(&o->orig_index, path, strlen(path));
ce = o->orig_index.cache[pos];
if (ce_skip_worktree(ce)) {
pos = index_name_pos(&the_index, path, strlen(path));
ce = the_index.cache[pos];
pos = index_name_pos(o->repo->index, path, strlen(path));
ce = o->repo->index->cache[pos];
ce->ce_flags |= CE_SKIP_WORKTREE;
}
return mfi.clean;
@@ -3177,7 +3186,7 @@ static int handle_content_merge(struct merge_options *o,
if (df_conflict_remains || is_dirty) {
char *new_path;
if (o->call_depth) {
remove_file_from_cache(path);
remove_file_from_index(o->repo->index, path);
} else {
if (!mfi.clean) {
if (update_stages(o, path, &one, &a, &b))
@@ -3337,7 +3346,7 @@ static int process_entry(struct merge_options *o,
oid = b_oid;
conf = _("directory/file");
}
if (dir_in_way(path,
if (dir_in_way(o->repo->index, path,
!o->call_depth && !S_ISGITLINK(a_mode),
0)) {
char *new_path = unique_path(o, path, add_branch);
@@ -3348,7 +3357,7 @@ static int process_entry(struct merge_options *o,
if (update_file(o, 0, oid, mode, new_path))
clean_merge = -1;
else if (o->call_depth)
remove_file_from_cache(path);
remove_file_from_index(o->repo->index, path);
free(new_path);
} else {
output(o, 2, _("Adding %s"), path);
@@ -3396,10 +3405,11 @@ int merge_trees(struct merge_options *o,
struct tree *common,
struct tree **result)
{
struct index_state *istate = o->repo->index;
int code, clean;
struct strbuf sb = STRBUF_INIT;

if (!o->call_depth && index_has_changes(&the_index, head, &sb)) {
if (!o->call_depth && index_has_changes(istate, head, &sb)) {
err(o, _("Your local changes to the following files would be overwritten by merge:\n %s"),
sb.buf);
return -1;
@@ -3427,7 +3437,7 @@ int merge_trees(struct merge_options *o,
return -1;
}

if (unmerged_cache()) {
if (unmerged_index(istate)) {
struct string_list *entries;
struct rename_info re_info;
int i;
@@ -3442,7 +3452,7 @@ int merge_trees(struct merge_options *o,
get_files_dirs(o, head);
get_files_dirs(o, merge);

entries = get_unmerged();
entries = get_unmerged(o->repo->index);
clean = detect_and_process_renames(o, common, head, merge,
entries, &re_info);
record_df_conflict_files(o, entries);
@@ -3558,7 +3568,7 @@ int merge_recursive(struct merge_options *o,
* overwritten it: the committed "conflicts" were
* already resolved.
*/
discard_cache();
discard_index(o->repo->index);
saved_b1 = o->branch1;
saved_b2 = o->branch2;
o->branch1 = "Temporary merge branch 1";
@@ -3574,9 +3584,9 @@ int merge_recursive(struct merge_options *o,
return err(o, _("merge returned no commit"));
}

discard_cache();
discard_index(o->repo->index);
if (!o->call_depth)
repo_read_index(the_repository);
repo_read_index(o->repo);

o->ancestor = "merged common ancestors";
clean = merge_trees(o, get_commit_tree(h1), get_commit_tree(h2),
@@ -3643,7 +3653,7 @@ int merge_recursive_generic(struct merge_options *o,
}
}

repo_hold_locked_index(the_repository, &lock, LOCK_DIE_ON_ERROR);
repo_hold_locked_index(o->repo, &lock, LOCK_DIE_ON_ERROR);
clean = merge_recursive(o, head_commit, next_commit, ca,
result);
if (clean < 0) {
@@ -3651,7 +3661,7 @@ int merge_recursive_generic(struct merge_options *o,
return clean;
}

if (write_locked_index(&the_index, &lock,
if (write_locked_index(o->repo->index, &lock,
COMMIT_LOCK | SKIP_IF_UNCHANGED))
return err(o, _("Unable to write index."));

@@ -3675,10 +3685,12 @@ static void merge_recursive_config(struct merge_options *o)
git_config(git_xmerge_config, NULL);
}

void init_merge_options(struct merge_options *o)
void init_merge_options(struct merge_options *o,
struct repository *repo)
{
const char *merge_verbosity;
memset(o, 0, sizeof(struct merge_options));
o->repo = repo;
o->verbosity = 2;
o->buffer_output = 1;
o->diff_rename_limit = -1;

+ 5
- 1
merge-recursive.h View File

@@ -6,6 +6,8 @@

struct commit;

struct repository;

struct merge_options {
const char *ancestor;
const char *branch1;
@@ -34,6 +36,7 @@ struct merge_options {
struct string_list df_conflict_file_set;
struct unpack_trees_options unpack_opts;
struct index_state orig_index;
struct repository *repo;
};

/*
@@ -92,7 +95,8 @@ int merge_recursive_generic(struct merge_options *o,
const struct object_id **ca,
struct commit **result);

void init_merge_options(struct merge_options *o);
void init_merge_options(struct merge_options *o,
struct repository *repo);
struct tree *write_tree_from_memory(struct merge_options *o);

int parse_merge_opt(struct merge_options *out, const char *s);

+ 2
- 2
sequencer.c View File

@@ -545,7 +545,7 @@ static int do_recursive_merge(struct repository *r,

repo_read_index(r);

init_merge_options(&o);
init_merge_options(&o, r);
o.ancestor = base ? base_label : "(empty tree)";
o.branch1 = "HEAD";
o.branch2 = next ? next_label : "(empty tree)";
@@ -3300,7 +3300,7 @@ static int do_merge(struct repository *r,
free_commit_list(bases);

repo_read_index(r);
init_merge_options(&o);
init_merge_options(&o, r);
o.branch1 = "HEAD";
o.branch2 = ref_name.buf;
o.buffer_output = 2;

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