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submodule: check for unmerged .gitmodules outside of config parsing 

Add 'is_gitmodules_unmerged()' function which can be used to determine
in the '.gitmodules' file is unmerged based on the passed in index
instead of relying on a global variable which is set during the
submodule-config parsing.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Williams 2017-08-02 12:49:21 -07:00 committed by Junio C Hamano
parent 91b834807b
commit 34e2ba04be
2 changed files with 24 additions and 24 deletions
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47
submodule.c
View File

@ -27,14 +27,25 @@ static struct oid_array ref_tips_before_fetch;
static struct oid_array ref_tips_after_fetch;
/*
* The following flag is set if the .gitmodules file is unmerged. We then
* disable recursion for all submodules where .git/config doesn't have a
* matching config entry because we can't guess what might be configured in
* .gitmodules unless the user resolves the conflict. When a command line
* option is given (which always overrides configuration) this flag will be
* ignored.
* Check if the .gitmodules file is unmerged. Parsing of the .gitmodules file
* will be disabled because we can't guess what might be configured in
* .gitmodules unless the user resolves the conflict.
*/
static int gitmodules_is_unmerged;
int is_gitmodules_unmerged(const struct index_state *istate)
{
int pos = index_name_pos(istate, GITMODULES_FILE, strlen(GITMODULES_FILE));
if (pos < 0) { /* .gitmodules not found or isn't merged */
pos = -1 - pos;
if (istate->cache_nr > pos) { /* there is a .gitmodules */
const struct cache_entry *ce = istate->cache[pos];
if (ce_namelen(ce) == strlen(GITMODULES_FILE) &&
!strcmp(ce->name, GITMODULES_FILE))
return 1;
}
}
return 0;
}
/*
* Check if the .gitmodules file has unstaged modifications. This must be
@ -71,7 +82,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath)
if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */
return -1;
if (gitmodules_is_unmerged)
if (is_gitmodules_unmerged(&the_index))
die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
submodule = submodule_from_path(null_sha1, oldpath);
@ -105,7 +116,7 @@ int remove_path_from_gitmodules(const char *path)
if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */
return -1;
if (gitmodules_is_unmerged)
if (is_gitmodules_unmerged(&the_index))
die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
submodule = submodule_from_path(null_sha1, path);
@ -156,7 +167,7 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
if (submodule) {
if (submodule->ignore)
handle_ignore_submodules_arg(diffopt, submodule->ignore);
else if (gitmodules_is_unmerged)
else if (is_gitmodules_unmerged(&the_index))
DIFF_OPT_SET(diffopt, IGNORE_SUBMODULES);
}
}
@ -224,23 +235,12 @@ void gitmodules_config(void)
const char *work_tree = get_git_work_tree();
if (work_tree) {
struct strbuf gitmodules_path = STRBUF_INIT;
int pos;
strbuf_addstr(&gitmodules_path, work_tree);
strbuf_addstr(&gitmodules_path, "/" GITMODULES_FILE);
if (read_cache() < 0)
die("index file corrupt");
pos = cache_name_pos(GITMODULES_FILE, 11);
if (pos < 0) { /* .gitmodules not found or isn't merged */
pos = -1 - pos;
if (active_nr > pos) { /* there is a .gitmodules */
const struct cache_entry *ce = active_cache[pos];
if (ce_namelen(ce) == 11 &&
!memcmp(ce->name, GITMODULES_FILE, 11))
gitmodules_is_unmerged = 1;
}
}
if (!gitmodules_is_unmerged)
if (!is_gitmodules_unmerged(&the_index))
git_config_from_file(git_modules_config,
gitmodules_path.buf, NULL);
strbuf_release(&gitmodules_path);
@ -1198,8 +1198,7 @@ static int get_next_submodule(struct child_process *cp,
default_argv = "on-demand";
}
} else {
if ((spf->default_option == RECURSE_SUBMODULES_OFF) ||
gitmodules_is_unmerged)
if (spf->default_option == RECURSE_SUBMODULES_OFF)
continue;
if (spf->default_option == RECURSE_SUBMODULES_ON_DEMAND) {
if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name))

1
submodule.h
View File

@ -33,6 +33,7 @@ struct submodule_update_strategy {
};
#define SUBMODULE_UPDATE_STRATEGY_INIT {SM_UPDATE_UNSPECIFIED, NULL}
extern int is_gitmodules_unmerged(const struct index_state *istate);
extern int is_staging_gitmodules_ok(const struct index_state *istate);
extern int update_path_in_gitmodules(const char *oldpath, const char *newpath);
extern int remove_path_from_gitmodules(const char *path);