From: Stefan Beller <sbeller@google.com>
To: sbeller@google.com, gitster@pobox.com
Cc: git@vger.kernel.org, bmwill@google.com, novalis@novalis.org,
sandals@crustytoothpaste.net, hvoigt@hvoigt.net,
jrnieder@gmail.com, ramsay@ramsayjones.plus.com
Subject: [PATCH 16/19] unpack-trees: check if we can perform the operation for submodules
Date: Tue, 14 Mar 2017 14:46:39 -0700 [thread overview]
Message-ID: <20170314214642.7701-17-sbeller@google.com> (raw)
In-Reply-To: <20170314214642.7701-1-sbeller@google.com>
In a later patch we'll support submodule entries to be
in sync with the tree in working tree changing commands,
such as checkout or read-tree.
When a new submodule entry changes in the tree, we need to
check if there are conflicts (directory/file conflicts)
for the tree. Add this check for submodules to be
performed before the working tree is touched.
Signed-off-by: Stefan Beller <sbeller@google.com>
---
unpack-trees.c | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++----
unpack-trees.h | 1 +
2 files changed, 123 insertions(+), 9 deletions(-)
diff --git a/unpack-trees.c b/unpack-trees.c
index 616a0ae4b2..8333da2cc9 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -10,6 +10,8 @@
#include "attr.h"
#include "split-index.h"
#include "dir.h"
+#include "submodule.h"
+#include "submodule-config.h"
/*
* Error messages expected by scripts out of plumbing commands such as
@@ -45,6 +47,9 @@ 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_SUBMODULE */
+ "Submodule '%s' cannot checkout new HEAD.",
};
#define ERRORMSG(o,type) \
@@ -161,6 +166,8 @@ 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_SUBMODULE] =
+ _("Submodule '%s' cannot checkout new HEAD");
opts->show_all_errors = 1;
/* rejected paths may not have a static buffer */
@@ -240,12 +247,75 @@ static void display_error_msgs(struct unpack_trees_options *o)
fprintf(stderr, _("Aborting\n"));
}
+static int check_submodule_move_head(const struct cache_entry *ce,
+ const char *old_id,
+ const char *new_id,
+ struct unpack_trees_options *o)
+{
+ const struct submodule *sub = submodule_from_ce(ce);
+ if (!sub)
+ return 0;
+
+ switch (sub->update_strategy.type) {
+ case SM_UPDATE_UNSPECIFIED:
+ case SM_UPDATE_CHECKOUT:
+ if (submodule_move_head(ce->name, old_id, new_id, SUBMODULE_MOVE_HEAD_DRY_RUN))
+ return o->gently ? -1 :
+ add_rejected_path(o, ERROR_WOULD_LOSE_SUBMODULE, ce->name);
+ return 0;
+ case SM_UPDATE_NONE:
+ return 0;
+ case SM_UPDATE_REBASE:
+ case SM_UPDATE_MERGE:
+ case SM_UPDATE_COMMAND:
+ default:
+ warning(_("submodule update strategy not supported for submodule '%s'"), ce->name);
+ return -1;
+ }
+}
+
+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) {
+ submodule_free();
+ checkout_entry(ce, state, NULL);
+ gitmodules_config();
+ git_config(submodule_config, NULL);
+ } else
+ break;
+ }
+ }
+}
+
/*
* 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)
{
+ const struct submodule *sub = submodule_from_ce(ce);
+ if (sub) {
+ switch (sub->update_strategy.type) {
+ case SM_UPDATE_UNSPECIFIED:
+ case SM_UPDATE_CHECKOUT:
+ case SM_UPDATE_REBASE:
+ case SM_UPDATE_MERGE:
+ submodule_move_head(ce->name, "HEAD", NULL,
+ SUBMODULE_MOVE_HEAD_FORCE);
+ break;
+ case SM_UPDATE_NONE:
+ case SM_UPDATE_COMMAND:
+ return; /* Do not touch the submodule. */
+ }
+ }
if (!check_leading_path(ce->name, ce_namelen(ce)))
return;
if (remove_or_warn(ce->ce_mode, ce->name))
@@ -301,6 +371,9 @@ static int check_updates(struct unpack_trees_options *o)
remove_marked_cache_entries(index);
remove_scheduled_dirs();
+ if (should_update_submodules() && 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 +1431,26 @@ 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 (submodule_from_ce(ce)) {
+ int r = check_submodule_move_head(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 +1494,11 @@ static int verify_clean_submodule(const char *old_sha1,
enum unpack_trees_error_types error_type,
struct unpack_trees_options *o)
{
- return 0;
+ if (!submodule_from_ce(ce))
+ return 0;
+
+ return check_submodule_move_head(ce, old_sha1,
+ oid_to_hex(&ce->oid), o);
}
static int verify_clean_subdirectory(const struct cache_entry *ce,
@@ -1578,9 +1664,15 @@ 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 (submodule_from_ce(ce))
+ ret = check_submodule_move_head(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 +1680,10 @@ static int verify_absent_1(const struct cache_entry *ce,
return error_errno("cannot stat '%s'", ce->name);
return 0;
} else {
+ if (submodule_from_ce(ce))
+ return check_submodule_move_head(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 +1739,15 @@ static int merged_entry(const struct cache_entry *ce,
return -1;
}
invalidate_ce_path(merge, o);
+
+ if (submodule_from_ce(ce)) {
+ int ret = check_submodule_move_head(ce, NULL,
+ 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 +1768,14 @@ 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 (submodule_from_ce(ce)) {
+ int ret = check_submodule_move_head(ce, oid_to_hex(&old->oid),
+ oid_to_hex(&ce->oid),
+ o);
+ if (ret)
+ return ret;
+ }
} else {
/*
* Previously unmerged entry left as an existence
diff --git a/unpack-trees.h b/unpack-trees.h
index 36a73a6d00..6c48117b84 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_SUBMODULE,
NB_UNPACK_TREES_ERROR_TYPES
};
--
2.12.0.rc1.49.g0cfd38c5f6.dirty
next prev parent reply other threads:[~2017-03-14 21:47 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170223225735.10994-1-sbeller@google.com/>
2017-03-02 0:47 ` [RFCv6 PATCH 00/18] Checkout aware of Submodules! Stefan Beller
2017-03-02 0:47 ` [PATCH 01/18] lib-submodule-update.sh: reorder create_lib_submodule_repo Stefan Beller
2017-03-02 0:47 ` [PATCH 02/18] lib-submodule-update.sh: do not use ./. as submodule remote Stefan Beller
2017-03-02 0:47 ` [PATCH 03/18] lib-submodule-update: teach test_submodule_content the -C <dir> flag Stefan Beller
2017-03-02 2:11 ` Eric Wong
2017-03-06 20:30 ` Stefan Beller
2017-03-06 20:35 ` Stefan Beller
2017-03-02 0:47 ` [PATCH 04/18] lib-submodule-update.sh: replace sha1 by hash Stefan Beller
2017-03-02 0:47 ` [PATCH 05/18] lib-submodule-update.sh: define tests for recursing into submodules Stefan Beller
2017-03-02 0:47 ` [PATCH 06/18] make is_submodule_populated gently Stefan Beller
2017-03-02 0:47 ` [PATCH 07/18] connect_work_tree_and_git_dir: safely create leading directories Stefan Beller
2017-03-02 0:47 ` [PATCH 08/18] update submodules: add submodule config parsing Stefan Beller
2017-03-02 0:47 ` [PATCH 09/18] update submodules: add a config option to determine if submodules are updated Stefan Beller
2017-03-02 0:47 ` [PATCH 10/18] submodules: introduce check to see whether to touch a submodule Stefan Beller
2017-03-02 0:47 ` [PATCH 11/18] update submodules: move up prepare_submodule_repo_env Stefan Beller
2017-03-02 0:47 ` [PATCH 12/18] update submodules: add submodule_move_head Stefan Beller
2017-03-02 0:47 ` [PATCH 13/18] unpack-trees: pass old oid to verify_clean_submodule Stefan Beller
2017-03-02 0:47 ` [PATCH 14/18] unpack-trees: check if we can perform the operation for submodules Stefan Beller
2017-03-02 0:47 ` [PATCH 15/18] read-cache, remove_marked_cache_entries: wipe selected submodules Stefan Beller
2017-03-02 0:47 ` [PATCH 16/18] entry.c: update submodules when interesting Stefan Beller
2017-03-02 0:47 ` [PATCH 17/18] builtin/checkout: add --recurse-submodules switch Stefan Beller
2017-03-02 0:47 ` [PATCH 18/18] builtin/read-tree: " Stefan Beller
2017-03-06 20:59 ` [RFCv7 PATCH 00/18] Checkout aware of Submodules! Stefan Beller
2017-03-06 20:59 ` [PATCH 01/18] lib-submodule-update.sh: reorder create_lib_submodule_repo Stefan Beller
2017-03-06 20:59 ` [PATCH 02/18] lib-submodule-update.sh: do not use ./. as submodule remote Stefan Beller
2017-03-06 20:59 ` [PATCH 03/18] lib-submodule-update: teach test_submodule_content the -C <dir> flag Stefan Beller
2017-03-06 22:21 ` Junio C Hamano
2017-03-06 20:59 ` [PATCH 04/18] lib-submodule-update.sh: replace sha1 by hash Stefan Beller
2017-03-06 20:59 ` [PATCH 05/18] lib-submodule-update.sh: define tests for recursing into submodules Stefan Beller
2017-03-07 22:26 ` Junio C Hamano
2017-03-06 20:59 ` [PATCH 06/18] make is_submodule_populated gently Stefan Beller
2017-03-06 20:59 ` [PATCH 07/18] connect_work_tree_and_git_dir: safely create leading directories Stefan Beller
2017-03-06 20:59 ` [PATCH 08/18] update submodules: add submodule config parsing Stefan Beller
2017-03-06 20:59 ` [PATCH 09/18] update submodules: add a config option to determine if submodules are updated Stefan Beller
2017-03-06 20:59 ` [PATCH 10/18] submodules: introduce check to see whether to touch a submodule Stefan Beller
2017-03-06 20:59 ` [PATCH 11/18] update submodules: move up prepare_submodule_repo_env Stefan Beller
2017-03-06 20:59 ` [PATCH 12/18] update submodules: add submodule_move_head Stefan Beller
2017-03-06 20:59 ` [PATCH 13/18] unpack-trees: pass old oid to verify_clean_submodule Stefan Beller
2017-03-06 20:59 ` [PATCH 14/18] unpack-trees: check if we can perform the operation for submodules Stefan Beller
2017-03-06 20:59 ` [PATCH 15/18] read-cache, remove_marked_cache_entries: wipe selected submodules Stefan Beller
2017-03-07 22:42 ` Junio C Hamano
2017-03-07 23:37 ` Stefan Beller
2017-03-08 1:14 ` Junio C Hamano
2017-03-08 22:39 ` Stefan Beller
2017-03-08 23:37 ` Junio C Hamano
2017-03-06 20:59 ` [PATCH 16/18] entry.c: update submodules when interesting Stefan Beller
2017-03-07 22:42 ` Junio C Hamano
2017-03-07 23:04 ` Junio C Hamano
2017-03-07 23:08 ` Stefan Beller
2017-03-08 1:08 ` Junio C Hamano
2017-03-06 20:59 ` [PATCH 17/18] builtin/checkout: add --recurse-submodules switch Stefan Beller
2017-03-06 20:59 ` [PATCH 18/18] builtin/read-tree: " Stefan Beller
2017-03-07 22:42 ` Junio C Hamano
2017-03-09 22:15 ` [RFCv8 PATCH 00/17] Checkout aware of Submodules! Stefan Beller
2017-03-09 22:15 ` [PATCH 01/17] lib-submodule-update.sh: reorder create_lib_submodule_repo Stefan Beller
2017-03-09 22:15 ` [PATCH 02/17] lib-submodule-update.sh: do not use ./. as submodule remote Stefan Beller
2017-03-09 22:15 ` [PATCH 03/17] lib-submodule-update: teach test_submodule_content the -C <dir> flag Stefan Beller
2017-03-09 22:15 ` [PATCH 04/17] lib-submodule-update.sh: replace sha1 by hash Stefan Beller
2017-03-09 22:15 ` [PATCH 05/17] lib-submodule-update.sh: define tests for recursing into submodules Stefan Beller
2017-03-09 22:15 ` [PATCH 06/17] make is_submodule_populated gently Stefan Beller
2017-03-09 22:15 ` [PATCH 07/17] connect_work_tree_and_git_dir: safely create leading directories Stefan Beller
2017-03-09 23:29 ` Brandon Williams
2017-03-12 7:06 ` Junio C Hamano
2017-03-09 22:15 ` [PATCH 08/17] update submodules: add submodule config parsing Stefan Beller
2017-03-09 22:15 ` [PATCH 09/17] update submodules: add a config option to determine if submodules are updated Stefan Beller
2017-03-09 22:15 ` [PATCH 10/17] submodules: introduce check to see whether to touch a submodule Stefan Beller
2017-03-09 22:15 ` [PATCH 11/17] update submodules: move up prepare_submodule_repo_env Stefan Beller
2017-03-09 22:15 ` [PATCH 12/17] update submodules: add submodule_move_head Stefan Beller
2017-03-09 23:37 ` Brandon Williams
2017-03-12 7:09 ` Junio C Hamano
2017-03-13 17:24 ` Brandon Williams
2017-03-13 20:50 ` Stefan Beller
2017-03-09 23:40 ` Brandon Williams
2017-03-09 23:43 ` Brandon Williams
2017-03-09 22:15 ` [PATCH 13/17] unpack-trees: pass old oid to verify_clean_submodule Stefan Beller
2017-03-09 22:15 ` [PATCH 14/17] unpack-trees: check if we can perform the operation for submodules Stefan Beller
2017-03-09 22:15 ` [PATCH 15/17] entry.c: create submodules when interesting Stefan Beller
2017-03-09 22:15 ` [PATCH 16/17] builtin/checkout: add --recurse-submodules switch Stefan Beller
2017-03-09 22:15 ` [PATCH 17/17] builtin/read-tree: " Stefan Beller
2017-03-14 21:46 ` [PATCHv9 00/19] Checkout aware of Submodules! Stefan Beller
2017-03-14 21:46 ` [PATCH 01/19] connect_work_tree_and_git_dir: safely create leading directories Stefan Beller
2017-03-14 21:46 ` [PATCH 02/19] submodule--helper.c: remove duplicate code Stefan Beller
2017-03-14 21:46 ` [PATCH 03/19] lib-submodule-update.sh: reorder create_lib_submodule_repo Stefan Beller
2017-03-14 21:46 ` [PATCH 04/19] lib-submodule-update.sh: do not use ./. as submodule remote Stefan Beller
2017-03-14 21:46 ` [PATCH 05/19] lib-submodule-update: teach test_submodule_content the -C <dir> flag Stefan Beller
2017-03-14 21:46 ` [PATCH 06/19] lib-submodule-update.sh: replace sha1 by hash Stefan Beller
2017-03-14 21:46 ` [PATCH 07/19] lib-submodule-update.sh: define tests for recursing into submodules Stefan Beller
2017-03-14 21:46 ` [PATCH 08/19] make is_submodule_populated gently Stefan Beller
2017-03-14 21:46 ` [PATCH 09/19] update submodules: add submodule config parsing Stefan Beller
2017-03-14 21:46 ` [PATCH 10/19] update submodules: add a config option to determine if submodules are updated Stefan Beller
2017-03-14 21:46 ` [PATCH 11/19] submodules: introduce check to see whether to touch a submodule Stefan Beller
2017-03-14 21:46 ` [PATCH 12/19] update submodules: move up prepare_submodule_repo_env Stefan Beller
2017-03-14 21:46 ` [PATCH 13/19] submodule.c: get_super_prefix_or_empty Stefan Beller
2017-03-14 21:46 ` [PATCH 14/19] update submodules: add submodule_move_head Stefan Beller
2017-03-14 21:46 ` [PATCH 15/19] unpack-trees: pass old oid to verify_clean_submodule Stefan Beller
2017-03-14 21:46 ` Stefan Beller [this message]
2017-03-14 21:46 ` [PATCH 17/19] entry.c: create submodules when interesting Stefan Beller
2017-03-14 21:46 ` [PATCH 18/19] builtin/checkout: add --recurse-submodules switch Stefan Beller
2017-03-14 21:46 ` [PATCH 19/19] builtin/read-tree: " Stefan Beller
2017-03-15 0:41 ` [PATCHv9 00/19] Checkout aware of Submodules! Brandon Williams
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