Signed-off-by: Stefan Beller <sbel...@google.com>
---
unpack-trees.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++------
unpack-trees.h | 1 +
2 files changed, 90 insertions(+), 9 deletions(-)
diff --git a/unpack-trees.c b/unpack-trees.c
index 616a0ae4b2..6805cb9549 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -10,6 +10,7 @@
#include "attr.h"
#include "split-index.h"
#include "dir.h"
+#include "submodule.h"
/*
* Error messages expected by scripts out of plumbing commands such as
@@ -45,6 +46,9 @@ static const char
*unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = {
/* ERROR_WOULD_LOSE_ORPHANED_REMOVED */
"Working tree file '%s' would be removed by sparse checkout update.",
+
+ /* ERROR_WOULD_LOSE_UNTRACKED_SUBMODULE */
+ "Submodule '%s' cannot be deleted as it contains untracked files.",
};
#define ERRORMSG(o,type) \
@@ -161,6 +165,8 @@ void setup_unpack_trees_porcelain(struct
unpack_trees_options *opts,
_("The following working tree files would be overwritten by
sparse checkout update:\n%s");
msgs[ERROR_WOULD_LOSE_ORPHANED_REMOVED] =
_("The following working tree files would be removed by sparse
checkout update:\n%s");
+ msgs[ERROR_WOULD_LOSE_UNTRACKED_SUBMODULE] =
+ _("Submodule '%s' cannot be deleted as it contains untracked
files.");
opts->show_all_errors = 1;
/* rejected paths may not have a static buffer */
@@ -240,12 +246,44 @@ static void display_error_msgs(struct
unpack_trees_options *o)
fprintf(stderr, _("Aborting\n"));
}
+static int submodule_check_from_to(const struct cache_entry *ce, const char
*old_id, const char *new_id, struct unpack_trees_options *o)
+{
+ if (submodule_go_from_to(ce->name, old_id,
+ new_id, 1, o->reset))
+ return o->gently ? -1 :
+ add_rejected_path(o,
ERROR_WOULD_LOSE_UNTRACKED_SUBMODULE, ce->name);
+ return 0;
+}
+
+static void reload_gitmodules_file(struct index_state *index,
+ struct checkout *state)
+{
+ int i;
+ for (i = 0; i < index->cache_nr; i++) {
+ struct cache_entry *ce = index->cache[i];
+ if (ce->ce_flags & CE_UPDATE) {
+
+ int r = strcmp(ce->name, ".gitmodules");
+ if (r < 0)
+ continue;
+ else if (r == 0) {
+ checkout_entry(ce, state, NULL);
+ } else
+ break;
+ }
+ }
+ gitmodules_config();
+ git_config(submodule_config, NULL);
+}
+
/*
* Unlink the last component and schedule the leading directories for
* removal, such that empty directories get removed.
*/
static void unlink_entry(const struct cache_entry *ce)
{
+ if (is_interesting_submodule(ce))
+ submodule_go_from_to(ce->name, "HEAD", NULL, 0, 1);
if (!check_leading_path(ce->name, ce_namelen(ce)))
return;
if (remove_or_warn(ce->ce_mode, ce->name))
@@ -301,6 +339,9 @@ static int check_updates(struct unpack_trees_options *o)
remove_marked_cache_entries(index);
remove_scheduled_dirs();
+ if (submodules_interesting_for_update() && o->update && !o->dry_run)
+ reload_gitmodules_file(index, &state);
+
for (i = 0; i < index->cache_nr; i++) {
struct cache_entry *ce = index->cache[i];
@@ -1358,17 +1399,27 @@ static int verify_uptodate_1(const struct cache_entry
*ce,
if (!lstat(ce->name, &st)) {
int flags = CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE;
unsigned changed = ie_match_stat(o->src_index, ce, &st, flags);
+
+ if (is_interesting_submodule(ce)) {
+ int r;
+ r = submodule_check_from_to(ce,
+ "HEAD", oid_to_hex(&ce->oid), o);
+ if (r)
+ return o->gently ? -1 :
+ add_rejected_path(o, error_type,
ce->name);
+ return 0;
+ }
+
if (!changed)
return 0;
/*
- * NEEDSWORK: the current default policy is to allow
- * submodule to be out of sync wrt the superproject
- * index. This needs to be tightened later for
- * submodules that are marked to be automatically
- * checked out.
+ * Historic default policy was to allow submodule to be out
+ * of sync wrt the superproject index. If the submodule was
+ * not considered interesting above, we don't care here.
*/
if (S_ISGITLINK(ce->ce_mode))
return 0;
+
errno = 0;
}
if (errno == ENOENT)
@@ -1412,7 +1463,12 @@ static int verify_clean_submodule(const char *old_sha1,
enum unpack_trees_error_types error_type,
struct unpack_trees_options *o)
{
- return 0;
+ if (!is_interesting_submodule(ce))
+ return 0;
+
+ return submodule_check_from_to(ce,
+ old_sha1,
+ oid_to_hex(&ce->oid), o);
}
static int verify_clean_subdirectory(const struct cache_entry *ce,
@@ -1578,9 +1634,15 @@ static int verify_absent_1(const struct cache_entry *ce,
path = xmemdupz(ce->name, len);
if (lstat(path, &st))
ret = error_errno("cannot stat '%s'", path);
- else
- ret = check_ok_to_remove(path, len, DT_UNKNOWN, NULL,
- &st, error_type, o);
+ else {
+ if (is_interesting_submodule(ce))
+ ret = submodule_check_from_to(ce,
+ oid_to_hex(&ce->oid),
+ NULL, o);
+ else
+ ret = check_ok_to_remove(path, len, DT_UNKNOWN,
NULL,
+ &st, error_type, o);
+ }
free(path);
return ret;
} else if (lstat(ce->name, &st)) {
@@ -1588,6 +1650,10 @@ static int verify_absent_1(const struct cache_entry *ce,
return error_errno("cannot stat '%s'", ce->name);
return 0;
} else {
+ if (is_interesting_submodule(ce))
+ return submodule_check_from_to(ce, oid_to_hex(&ce->oid),
+ NULL, o);
+
return check_ok_to_remove(ce->name, ce_namelen(ce),
ce_to_dtype(ce), ce, &st,
error_type, o);
@@ -1643,6 +1709,16 @@ static int merged_entry(const struct cache_entry *ce,
return -1;
}
invalidate_ce_path(merge, o);
+
+ if (is_interesting_submodule(ce)) {
+ int ret = submodule_check_from_to(ce,
+ oid_to_hex(&old->oid),
+ oid_to_hex(&ce->oid),
+ o);
+ if (ret)
+ return ret;
+ }
+
} else if (!(old->ce_flags & CE_CONFLICTED)) {
/*
* See if we can re-use the old CE directly?
@@ -1663,6 +1739,10 @@ static int merged_entry(const struct cache_entry *ce,
update |= old->ce_flags & (CE_SKIP_WORKTREE |
CE_NEW_SKIP_WORKTREE);
invalidate_ce_path(old, o);
}
+ if (is_interesting_submodule(ce)) {
+ if (submodule_check_from_to(ce, oid_to_hex(&old->oid),
oid_to_hex(&ce->oid), o))
+ return -1;
+ }
} else {
/*
* Previously unmerged entry left as an existence
diff --git a/unpack-trees.h b/unpack-trees.h
index 36a73a6d00..c0427ce082 100644
--- a/unpack-trees.h
+++ b/unpack-trees.h
@@ -21,6 +21,7 @@ enum unpack_trees_error_types {
ERROR_SPARSE_NOT_UPTODATE_FILE,
ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN,
ERROR_WOULD_LOSE_ORPHANED_REMOVED,
+ ERROR_WOULD_LOSE_UNTRACKED_SUBMODULE,
NB_UNPACK_TREES_ERROR_TYPES
};
--
2.12.0.rc0.16.gd1691994b4.dirty
