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-rw-r--r--submodule.c377
1 files changed, 313 insertions, 64 deletions
diff --git a/submodule.c b/submodule.c
index 37d29bb252..50ee9ab747 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "repository.h"
@@ -25,7 +24,6 @@
#include "commit-reach.h"
static int config_update_recurse_submodules = RECURSE_SUBMODULES_OFF;
-static struct string_list changed_submodule_names = STRING_LIST_INIT_DUP;
static int initialized_fetch_ref_tips;
static struct oid_array ref_tips_before_fetch;
static struct oid_array ref_tips_after_fetch;
@@ -457,7 +455,7 @@ static int prepare_submodule_summary(struct rev_info *rev, const char *path,
return prepare_revision_walk(rev);
}
-static void print_submodule_summary(struct rev_info *rev, struct diff_options *o)
+static void print_submodule_summary(struct repository *r, struct rev_info *rev, struct diff_options *o)
{
static const char format[] = " %m %s";
struct strbuf sb = STRBUF_INIT;
@@ -468,7 +466,8 @@ static void print_submodule_summary(struct rev_info *rev, struct diff_options *o
ctx.date_mode = rev->date_mode;
ctx.output_encoding = get_log_output_encoding();
strbuf_setlen(&sb, 0);
- format_commit_message(commit, format, &sb, &ctx);
+ repo_format_commit_message(r, commit, format, &sb,
+ &ctx);
strbuf_addch(&sb, '\n');
if (commit->object.flags & SYMMETRIC_LEFT)
diff_emit_submodule_del(o, sb.buf);
@@ -495,14 +494,52 @@ void prepare_submodule_repo_env(struct argv_array *out)
DEFAULT_GIT_DIR_ENVIRONMENT);
}
-/* Helper function to display the submodule header line prior to the full
- * summary output. If it can locate the submodule objects directory it will
- * attempt to lookup both the left and right commits and put them into the
- * left and right pointers.
+static void prepare_submodule_repo_env_in_gitdir(struct argv_array *out)
+{
+ prepare_submodule_repo_env_no_git_dir(out);
+ argv_array_pushf(out, "%s=.", GIT_DIR_ENVIRONMENT);
+}
+
+/*
+ * Initialize a repository struct for a submodule based on the provided 'path'.
+ *
+ * Unlike repo_submodule_init, this tolerates submodules not present
+ * in .gitmodules. This function exists only to preserve historical behavior,
+ *
+ * Returns the repository struct on success,
+ * NULL when the submodule is not present.
*/
-static void show_submodule_header(struct diff_options *o, const char *path,
+static struct repository *open_submodule(const char *path)
+{
+ struct strbuf sb = STRBUF_INIT;
+ struct repository *out = xmalloc(sizeof(*out));
+
+ if (submodule_to_gitdir(&sb, path) || repo_init(out, sb.buf, NULL)) {
+ strbuf_release(&sb);
+ free(out);
+ return NULL;
+ }
+
+ /* Mark it as a submodule */
+ out->submodule_prefix = xstrdup(path);
+
+ strbuf_release(&sb);
+ return out;
+}
+
+/*
+ * Helper function to display the submodule header line prior to the full
+ * summary output.
+ *
+ * If it can locate the submodule git directory it will create a repository
+ * handle for the submodule and lookup both the left and right commits and
+ * put them into the left and right pointers.
+ */
+static void show_submodule_header(struct diff_options *o,
+ const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule,
+ struct repository *sub,
struct commit **left, struct commit **right,
struct commit_list **merge_bases)
{
@@ -521,7 +558,7 @@ static void show_submodule_header(struct diff_options *o, const char *path,
else if (is_null_oid(two))
message = "(submodule deleted)";
- if (add_submodule_odb(path)) {
+ if (!sub) {
if (!message)
message = "(commits not present)";
goto output_header;
@@ -531,8 +568,8 @@ static void show_submodule_header(struct diff_options *o, const char *path,
* Attempt to lookup the commit references, and determine if this is
* a fast forward or fast backwards update.
*/
- *left = lookup_commit_reference(the_repository, one);
- *right = lookup_commit_reference(the_repository, two);
+ *left = lookup_commit_reference(sub, one);
+ *right = lookup_commit_reference(sub, two);
/*
* Warn about missing commits in the submodule project, but only if
@@ -542,7 +579,7 @@ static void show_submodule_header(struct diff_options *o, const char *path,
(!is_null_oid(two) && !*right))
message = "(commits not present)";
- *merge_bases = get_merge_bases(*left, *right);
+ *merge_bases = repo_get_merge_bases(sub, *left, *right);
if (*merge_bases) {
if ((*merge_bases)->item == *left)
fast_forward = 1;
@@ -576,16 +613,18 @@ void show_submodule_summary(struct diff_options *o, const char *path,
struct rev_info rev;
struct commit *left = NULL, *right = NULL;
struct commit_list *merge_bases = NULL;
+ struct repository *sub;
+ sub = open_submodule(path);
show_submodule_header(o, path, one, two, dirty_submodule,
- &left, &right, &merge_bases);
+ sub, &left, &right, &merge_bases);
/*
* If we don't have both a left and a right pointer, there is no
* reason to try and display a summary. The header line should contain
* all the information the user needs.
*/
- if (!left || !right)
+ if (!left || !right || !sub)
goto out;
/* Treat revision walker failure the same as missing commits */
@@ -594,13 +633,17 @@ void show_submodule_summary(struct diff_options *o, const char *path,
goto out;
}
- print_submodule_summary(&rev, o);
+ print_submodule_summary(sub, &rev, o);
out:
if (merge_bases)
free_commit_list(merge_bases);
clear_commit_marks(left, ~0);
clear_commit_marks(right, ~0);
+ if (sub) {
+ repo_clear(sub);
+ free(sub);
+ }
}
void show_submodule_inline_diff(struct diff_options *o, const char *path,
@@ -612,9 +655,11 @@ void show_submodule_inline_diff(struct diff_options *o, const char *path,
struct commit_list *merge_bases = NULL;
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf sb = STRBUF_INIT;
+ struct repository *sub;
+ sub = open_submodule(path);
show_submodule_header(o, path, one, two, dirty_submodule,
- &left, &right, &merge_bases);
+ sub, &left, &right, &merge_bases);
/* We need a valid left and right commit to display a difference */
if (!(left || is_null_oid(one)) ||
@@ -675,6 +720,10 @@ done:
clear_commit_marks(left, ~0);
if (right)
clear_commit_marks(right, ~0);
+ if (sub) {
+ repo_clear(sub);
+ free(sub);
+ }
}
int should_update_submodules(void)
@@ -999,9 +1048,6 @@ static int push_submodule(const char *path,
const struct string_list *push_options,
int dry_run)
{
- if (add_submodule_odb(path))
- return 1;
-
if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) {
struct child_process cp = CHILD_PROCESS_INIT;
argv_array_push(&cp.args, "push");
@@ -1136,11 +1182,11 @@ void check_for_new_submodule_commits(struct object_id *oid)
oid_array_append(&ref_tips_after_fetch, oid);
}
-static void calculate_changed_submodule_paths(struct repository *r)
+static void calculate_changed_submodule_paths(struct repository *r,
+ struct string_list *changed_submodule_names)
{
struct argv_array argv = ARGV_ARRAY_INIT;
- struct string_list changed_submodules = STRING_LIST_INIT_DUP;
- const struct string_list_item *name;
+ struct string_list_item *name;
/* No need to check if there are no submodules configured */
if (!submodule_from_path(r, NULL, NULL))
@@ -1157,9 +1203,9 @@ static void calculate_changed_submodule_paths(struct repository *r)
* Collect all submodules (whether checked out or not) for which new
* commits have been recorded upstream in "changed_submodule_names".
*/
- collect_changed_submodules(r, &changed_submodules, &argv);
+ collect_changed_submodules(r, changed_submodule_names, &argv);
- for_each_string_list_item(name, &changed_submodules) {
+ for_each_string_list_item(name, changed_submodule_names) {
struct oid_array *commits = name->util;
const struct submodule *submodule;
const char *path = NULL;
@@ -1173,11 +1219,14 @@ static void calculate_changed_submodule_paths(struct repository *r)
if (!path)
continue;
- if (!submodule_has_commits(r, path, commits))
- string_list_append(&changed_submodule_names, name->string);
+ if (submodule_has_commits(r, path, commits)) {
+ oid_array_clear(commits);
+ *name->string = '\0';
+ }
}
- free_submodules_oids(&changed_submodules);
+ string_list_remove_empty_items(changed_submodule_names, 1);
+
argv_array_clear(&argv);
oid_array_clear(&ref_tips_before_fetch);
oid_array_clear(&ref_tips_after_fetch);
@@ -1221,8 +1270,16 @@ struct submodule_parallel_fetch {
int default_option;
int quiet;
int result;
+
+ struct string_list changed_submodule_names;
+
+ /* Pending fetches by OIDs */
+ struct fetch_task **oid_fetch_tasks;
+ int oid_fetch_tasks_nr, oid_fetch_tasks_alloc;
};
-#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0}
+#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0, \
+ STRING_LIST_INIT_DUP, \
+ NULL, 0, 0}
static int get_fetch_recurse_config(const struct submodule *submodule,
struct submodule_parallel_fetch *spf)
@@ -1249,40 +1306,126 @@ static int get_fetch_recurse_config(const struct submodule *submodule,
return spf->default_option;
}
+/*
+ * Fetch in progress (if callback data) or
+ * pending (if in oid_fetch_tasks in struct submodule_parallel_fetch)
+ */
+struct fetch_task {
+ struct repository *repo;
+ const struct submodule *sub;
+ unsigned free_sub : 1; /* Do we need to free the submodule? */
+
+ struct oid_array *commits; /* Ensure these commits are fetched */
+};
+
+/**
+ * When a submodule is not defined in .gitmodules, we cannot access it
+ * via the regular submodule-config. Create a fake submodule, which we can
+ * work on.
+ */
+static const struct submodule *get_non_gitmodules_submodule(const char *path)
+{
+ struct submodule *ret = NULL;
+ const char *name = default_name_or_path(path);
+
+ if (!name)
+ return NULL;
+
+ ret = xmalloc(sizeof(*ret));
+ memset(ret, 0, sizeof(*ret));
+ ret->path = name;
+ ret->name = name;
+
+ return (const struct submodule *) ret;
+}
+
+static struct fetch_task *fetch_task_create(struct repository *r,
+ const char *path)
+{
+ struct fetch_task *task = xmalloc(sizeof(*task));
+ memset(task, 0, sizeof(*task));
+
+ task->sub = submodule_from_path(r, &null_oid, path);
+ if (!task->sub) {
+ /*
+ * No entry in .gitmodules? Technically not a submodule,
+ * but historically we supported repositories that happen to be
+ * in-place where a gitlink is. Keep supporting them.
+ */
+ task->sub = get_non_gitmodules_submodule(path);
+ if (!task->sub) {
+ free(task);
+ return NULL;
+ }
+
+ task->free_sub = 1;
+ }
+
+ return task;
+}
+
+static void fetch_task_release(struct fetch_task *p)
+{
+ if (p->free_sub)
+ free((void*)p->sub);
+ p->free_sub = 0;
+ p->sub = NULL;
+
+ if (p->repo)
+ repo_clear(p->repo);
+ FREE_AND_NULL(p->repo);
+}
+
+static struct repository *get_submodule_repo_for(struct repository *r,
+ const struct submodule *sub)
+{
+ struct repository *ret = xmalloc(sizeof(*ret));
+
+ if (repo_submodule_init(ret, r, sub)) {
+ /*
+ * No entry in .gitmodules? Technically not a submodule,
+ * but historically we supported repositories that happen to be
+ * in-place where a gitlink is. Keep supporting them.
+ */
+ struct strbuf gitdir = STRBUF_INIT;
+ strbuf_repo_worktree_path(&gitdir, r, "%s/.git", sub->path);
+ if (repo_init(ret, gitdir.buf, NULL)) {
+ strbuf_release(&gitdir);
+ free(ret);
+ return NULL;
+ }
+ strbuf_release(&gitdir);
+ }
+
+ return ret;
+}
+
static int get_next_submodule(struct child_process *cp,
struct strbuf *err, void *data, void **task_cb)
{
- int ret = 0;
struct submodule_parallel_fetch *spf = data;
for (; spf->count < spf->r->index->cache_nr; spf->count++) {
- struct strbuf submodule_path = STRBUF_INIT;
- struct strbuf submodule_git_dir = STRBUF_INIT;
- struct strbuf submodule_prefix = STRBUF_INIT;
const struct cache_entry *ce = spf->r->index->cache[spf->count];
- const char *git_dir, *default_argv;
- const struct submodule *submodule;
- struct submodule default_submodule = SUBMODULE_INIT;
+ const char *default_argv;
+ struct fetch_task *task;
if (!S_ISGITLINK(ce->ce_mode))
continue;
- submodule = submodule_from_path(spf->r, &null_oid, ce->name);
- if (!submodule) {
- const char *name = default_name_or_path(ce->name);
- if (name) {
- default_submodule.path = default_submodule.name = name;
- submodule = &default_submodule;
- }
- }
+ task = fetch_task_create(spf->r, ce->name);
+ if (!task)
+ continue;
- switch (get_fetch_recurse_config(submodule, spf))
+ switch (get_fetch_recurse_config(task->sub, spf))
{
default:
case RECURSE_SUBMODULES_DEFAULT:
case RECURSE_SUBMODULES_ON_DEMAND:
- if (!submodule || !unsorted_string_list_lookup(&changed_submodule_names,
- submodule->name))
+ if (!task->sub ||
+ !string_list_lookup(
+ &spf->changed_submodule_names,
+ task->sub->name))
continue;
default_argv = "on-demand";
break;
@@ -1293,16 +1436,12 @@ static int get_next_submodule(struct child_process *cp,
continue;
}
- strbuf_repo_worktree_path(&submodule_path, spf->r, "%s", ce->name);
- strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf);
- strbuf_addf(&submodule_prefix, "%s%s/", spf->prefix, ce->name);
- git_dir = read_gitfile(submodule_git_dir.buf);
- if (!git_dir)
- git_dir = submodule_git_dir.buf;
- if (is_directory(git_dir)) {
+ task->repo = get_submodule_repo_for(spf->r, task->sub);
+ if (task->repo) {
+ struct strbuf submodule_prefix = STRBUF_INIT;
child_process_init(cp);
- cp->dir = strbuf_detach(&submodule_path, NULL);
- prepare_submodule_repo_env(&cp->env_array);
+ cp->dir = task->repo->gitdir;
+ prepare_submodule_repo_env_in_gitdir(&cp->env_array);
cp->git_cmd = 1;
if (!spf->quiet)
strbuf_addf(err, "Fetching submodule %s%s\n",
@@ -1311,17 +1450,66 @@ static int get_next_submodule(struct child_process *cp,
argv_array_pushv(&cp->args, spf->args.argv);
argv_array_push(&cp->args, default_argv);
argv_array_push(&cp->args, "--submodule-prefix");
+
+ strbuf_addf(&submodule_prefix, "%s%s/",
+ spf->prefix,
+ task->sub->path);
argv_array_push(&cp->args, submodule_prefix.buf);
- ret = 1;
- }
- strbuf_release(&submodule_path);
- strbuf_release(&submodule_git_dir);
- strbuf_release(&submodule_prefix);
- if (ret) {
+
spf->count++;
+ *task_cb = task;
+
+ strbuf_release(&submodule_prefix);
return 1;
+ } else {
+
+ fetch_task_release(task);
+ free(task);
+
+ /*
+ * An empty directory is normal,
+ * the submodule is not initialized
+ */
+ if (S_ISGITLINK(ce->ce_mode) &&
+ !is_empty_dir(ce->name)) {
+ spf->result = 1;
+ strbuf_addf(err,
+ _("Could not access submodule '%s'"),
+ ce->name);
+ }
}
}
+
+ if (spf->oid_fetch_tasks_nr) {
+ struct fetch_task *task =
+ spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr - 1];
+ struct strbuf submodule_prefix = STRBUF_INIT;
+ spf->oid_fetch_tasks_nr--;
+
+ strbuf_addf(&submodule_prefix, "%s%s/",
+ spf->prefix, task->sub->path);
+
+ child_process_init(cp);
+ prepare_submodule_repo_env_in_gitdir(&cp->env_array);
+ cp->git_cmd = 1;
+ cp->dir = task->repo->gitdir;
+
+ argv_array_init(&cp->args);
+ argv_array_pushv(&cp->args, spf->args.argv);
+ argv_array_push(&cp->args, "on-demand");
+ argv_array_push(&cp->args, "--submodule-prefix");
+ argv_array_push(&cp->args, submodule_prefix.buf);
+
+ /* NEEDSWORK: have get_default_remote from submodule--helper */
+ argv_array_push(&cp->args, "origin");
+ oid_array_for_each_unique(task->commits,
+ append_oid_to_argv, &cp->args);
+
+ *task_cb = task;
+ strbuf_release(&submodule_prefix);
+ return 1;
+ }
+
return 0;
}
@@ -1329,20 +1517,66 @@ static int fetch_start_failure(struct strbuf *err,
void *cb, void *task_cb)
{
struct submodule_parallel_fetch *spf = cb;
+ struct fetch_task *task = task_cb;
spf->result = 1;
+ fetch_task_release(task);
return 0;
}
+static int commit_missing_in_sub(const struct object_id *oid, void *data)
+{
+ struct repository *subrepo = data;
+
+ enum object_type type = oid_object_info(subrepo, oid, NULL);
+
+ return type != OBJ_COMMIT;
+}
+
static int fetch_finish(int retvalue, struct strbuf *err,
void *cb, void *task_cb)
{
struct submodule_parallel_fetch *spf = cb;
+ struct fetch_task *task = task_cb;
+
+ struct string_list_item *it;
+ struct oid_array *commits;
if (retvalue)
spf->result = 1;
+ if (!task || !task->sub)
+ BUG("callback cookie bogus");
+
+ /* Is this the second time we process this submodule? */
+ if (task->commits)
+ goto out;
+
+ it = string_list_lookup(&spf->changed_submodule_names, task->sub->name);
+ if (!it)
+ /* Could be an unchanged submodule, not contained in the list */
+ goto out;
+
+ commits = it->util;
+ oid_array_filter(commits,
+ commit_missing_in_sub,
+ task->repo);
+
+ /* Are there commits we want, but do not exist? */
+ if (commits->nr) {
+ task->commits = commits;
+ ALLOC_GROW(spf->oid_fetch_tasks,
+ spf->oid_fetch_tasks_nr + 1,
+ spf->oid_fetch_tasks_alloc);
+ spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr] = task;
+ spf->oid_fetch_tasks_nr++;
+ return 0;
+ }
+
+out:
+ fetch_task_release(task);
+
return 0;
}
@@ -1373,7 +1607,8 @@ int fetch_populated_submodules(struct repository *r,
argv_array_push(&spf.args, "--recurse-submodules-default");
/* default value, "--submodule-prefix" and its value are added later */
- calculate_changed_submodule_paths(r);
+ calculate_changed_submodule_paths(r, &spf.changed_submodule_names);
+ string_list_sort(&spf.changed_submodule_names);
run_processes_parallel(max_parallel_jobs,
get_next_submodule,
fetch_start_failure,
@@ -1382,7 +1617,7 @@ int fetch_populated_submodules(struct repository *r,
argv_array_clear(&spf.args);
out:
- string_list_clear(&changed_submodule_names, 1);
+ free_submodules_oids(&spf.changed_submodule_names);
return spf.result;
}
@@ -1561,6 +1796,18 @@ out:
return ret;
}
+void submodule_unset_core_worktree(const struct submodule *sub)
+{
+ char *config_path = xstrfmt("%s/modules/%s/config",
+ get_git_common_dir(), sub->name);
+
+ if (git_config_set_in_file_gently(config_path, "core.worktree", NULL))
+ warning(_("Could not unset core.worktree setting in submodule '%s'"),
+ sub->path);
+
+ free(config_path);
+}
+
static const char *get_super_prefix_or_empty(void)
{
const char *s = get_super_prefix();
@@ -1726,6 +1973,8 @@ int submodule_move_head(const char *path,
if (is_empty_dir(path))
rmdir_or_warn(path);
+
+ submodule_unset_core_worktree(sub);
}
}
out:
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 15:37:44 +0000