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authorJunio C Hamano <gitster@pobox.com>2020-05-13 22:19:18 +0300
committerJunio C Hamano <gitster@pobox.com>2020-05-13 22:19:18 +0300
commit896833b2687ce09a4965e5b4f3992daad096a65b (patch)
tree5edc5ea6874a06b4f78856339b3fab204dcaaa96
parentb994622632154fc3b17fb40a38819ad954a5fb88 (diff)
parentcac4b8e22ee39e52341d718450f8e4055c4dc16f (diff)
Merge branch 'tb/shallow-cleanup'
Code cleanup. * tb/shallow-cleanup: shallow: use struct 'shallow_lock' for additional safety shallow.h: document '{commit,rollback}_shallow_file' shallow: extract a header file for shallow-related functions commit: make 'commit_graft_pos' non-static
Diffstat
-rw-r--r--builtin/fetch.c1
-rw-r--r--builtin/pack-objects.c1
-rw-r--r--builtin/prune.c1
-rw-r--r--builtin/receive-pack.c3
-rw-r--r--builtin/repack.c1
-rw-r--r--builtin/rev-parse.c1
-rw-r--r--commit-graph.c1
-rw-r--r--commit.c16
-rw-r--r--commit.h50
-rw-r--r--environment.c1
-rw-r--r--fetch-pack.c3
-rw-r--r--git.c1
-rw-r--r--send-pack.c1
-rw-r--r--shallow.c36
-rw-r--r--shallow.h81
-rw-r--r--upload-pack.c1
16 files changed, 124 insertions, 75 deletions
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 3ae52c015d..95beed57fa 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -27,6 +27,7 @@
#include "branch.h"
#include "promisor-remote.h"
#include "commit-graph.h"
+#include "shallow.h"
#define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 03b85f5166..c5b433a23f 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -34,6 +34,7 @@
#include "dir.h"
#include "midx.h"
#include "trace2.h"
+#include "shallow.h"
#define IN_PACK(obj) oe_in_pack(&to_pack, obj)
#define SIZE(obj) oe_size(&to_pack, obj)
diff --git a/builtin/prune.c b/builtin/prune.c
index fd9acc7222..02c6ab7cba 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -8,6 +8,7 @@
#include "progress.h"
#include "prune-packed.h"
#include "object-store.h"
+#include "shallow.h"
static const char * const prune_usage[] = {
N_("git prune [-n] [-v] [--progress] [--expire <time>] [--] [<head>...]"),
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index d37ab776b3..ea3d0f01af 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -28,6 +28,7 @@
#include "protocol.h"
#include "commit-reach.h"
#include "worktree.h"
+#include "shallow.h"
static const char * const receive_pack_usage[] = {
N_("git receive-pack <git-dir>"),
@@ -876,7 +877,7 @@ static void refuse_unconfigured_deny_delete_current(void)
static int command_singleton_iterator(void *cb_data, struct object_id *oid);
static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
{
- struct lock_file shallow_lock = LOCK_INIT;
+ struct shallow_lock shallow_lock = SHALLOW_LOCK_INIT;
struct oid_array extra = OID_ARRAY_INIT;
struct check_connected_options opt = CHECK_CONNECTED_INIT;
uint32_t mask = 1 << (cmd->index % 32);
diff --git a/builtin/repack.c b/builtin/repack.c
index 1b686ee9ce..df287739d9 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -13,6 +13,7 @@
#include "prune-packed.h"
#include "object-store.h"
#include "promisor-remote.h"
+#include "shallow.h"
static int delta_base_offset = 1;
static int pack_kept_objects = -1;
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 06056434ed..669dd2fd6f 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -16,6 +16,7 @@
#include "split-index.h"
#include "submodule.h"
#include "commit-reach.h"
+#include "shallow.h"
#define DO_REVS 1
#define DO_NOREV 2
diff --git a/commit-graph.c b/commit-graph.c
index 5ea0c8e15c..e3420ddcbf 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -18,6 +18,7 @@
#include "progress.h"
#include "bloom.h"
#include "commit-slab.h"
+#include "shallow.h"
void git_test_write_commit_graph_or_die(void)
{
diff --git a/commit.c b/commit.c
index c7099daeac..87686a7055 100644
--- a/commit.c
+++ b/commit.c
@@ -20,6 +20,7 @@
#include "refs.h"
#include "commit-reach.h"
#include "run-command.h"
+#include "shallow.h"
static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
@@ -110,7 +111,7 @@ static const unsigned char *commit_graft_sha1_access(size_t index, void *table)
return commit_graft_table[index]->oid.hash;
}
-static int commit_graft_pos(struct repository *r, const unsigned char *sha1)
+int commit_graft_pos(struct repository *r, const unsigned char *sha1)
{
return sha1_pos(sha1, r->parsed_objects->grafts,
r->parsed_objects->grafts_nr,
@@ -245,19 +246,6 @@ int for_each_commit_graft(each_commit_graft_fn fn, void *cb_data)
return ret;
}
-int unregister_shallow(const struct object_id *oid)
-{
- int pos = commit_graft_pos(the_repository, oid->hash);
- if (pos < 0)
- return -1;
- if (pos + 1 < the_repository->parsed_objects->grafts_nr)
- MOVE_ARRAY(the_repository->parsed_objects->grafts + pos,
- the_repository->parsed_objects->grafts + pos + 1,
- the_repository->parsed_objects->grafts_nr - pos - 1);
- the_repository->parsed_objects->grafts_nr--;
- return 0;
-}
-
struct commit_buffer {
void *buffer;
unsigned long size;
diff --git a/commit.h b/commit.h
index ab91d21131..1b2dea5d85 100644
--- a/commit.h
+++ b/commit.h
@@ -236,6 +236,8 @@ struct commit_graft {
typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
struct commit_graft *read_graft_line(struct strbuf *line);
+/* commit_graft_pos returns an index into r->parsed_objects->grafts. */
+int commit_graft_pos(struct repository *r, const unsigned char *sha1);
int register_commit_graft(struct repository *r, struct commit_graft *, int);
void prepare_commit_graft(struct repository *r);
struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid);
@@ -247,55 +249,7 @@ struct commit *get_fork_point(const char *refname, struct commit *commit);
struct oid_array;
struct ref;
-int register_shallow(struct repository *r, const struct object_id *oid);
-int unregister_shallow(const struct object_id *oid);
-int commit_shallow_file(struct repository *r, struct lock_file *lk);
-void rollback_shallow_file(struct repository *r, struct lock_file *lk);
int for_each_commit_graft(each_commit_graft_fn, void *);
-int is_repository_shallow(struct repository *r);
-struct commit_list *get_shallow_commits(struct object_array *heads,
- int depth, int shallow_flag, int not_shallow_flag);
-struct commit_list *get_shallow_commits_by_rev_list(
- int ac, const char **av, int shallow_flag, int not_shallow_flag);
-void set_alternate_shallow_file(struct repository *r, const char *path, int override);
-int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
- const struct oid_array *extra);
-void setup_alternate_shallow(struct lock_file *shallow_lock,
- const char **alternate_shallow_file,
- const struct oid_array *extra);
-const char *setup_temporary_shallow(const struct oid_array *extra);
-void advertise_shallow_grafts(int);
-
-/*
- * Initialize with prepare_shallow_info() or zero-initialize (equivalent to
- * prepare_shallow_info with a NULL oid_array).
- */
-struct shallow_info {
- struct oid_array *shallow;
- int *ours, nr_ours;
- int *theirs, nr_theirs;
- struct oid_array *ref;
-
- /* for receive-pack */
- uint32_t **used_shallow;
- int *need_reachability_test;
- int *reachable;
- int *shallow_ref;
- struct commit **commits;
- int nr_commits;
-};
-
-void prepare_shallow_info(struct shallow_info *, struct oid_array *);
-void clear_shallow_info(struct shallow_info *);
-void remove_nonexistent_theirs_shallow(struct shallow_info *);
-void assign_shallow_commits_to_refs(struct shallow_info *info,
- uint32_t **used,
- int *ref_status);
-int delayed_reachability_test(struct shallow_info *si, int c);
-#define PRUNE_SHOW_ONLY 1
-#define PRUNE_QUICK 2
-void prune_shallow(unsigned options);
-extern struct trace_key trace_shallow;
int interactive_add(int argc, const char **argv, const char *prefix, int patch);
int run_add_interactive(const char *revision, const char *patch_mode,
diff --git a/environment.c b/environment.c
index 10c9061c43..aaca0e91ac 100644
--- a/environment.c
+++ b/environment.c
@@ -17,6 +17,7 @@
#include "argv-array.h"
#include "object-store.h"
#include "chdir-notify.h"
+#include "shallow.h"
int trust_executable_bit = 1;
int trust_ctime = 1;
diff --git a/fetch-pack.c b/fetch-pack.c
index f73a2ce6cb..7eaa19d7c1 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -22,6 +22,7 @@
#include "connected.h"
#include "fetch-negotiator.h"
#include "fsck.h"
+#include "shallow.h"
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
@@ -34,7 +35,7 @@ static int fetch_fsck_objects = -1;
static int transfer_fsck_objects = -1;
static int agent_supported;
static int server_supports_filtering;
-static struct lock_file shallow_lock;
+static struct shallow_lock shallow_lock;
static const char *alternate_shallow_file;
static struct strbuf fsck_msg_types = STRBUF_INIT;
diff --git a/git.c b/git.c
index 2e4efb4ff0..a2d337eed7 100644
--- a/git.c
+++ b/git.c
@@ -4,6 +4,7 @@
#include "help.h"
#include "run-command.h"
#include "alias.h"
+#include "shallow.h"
#define RUN_SETUP (1<<0)
#define RUN_SETUP_GENTLY (1<<1)
diff --git a/send-pack.c b/send-pack.c
index d1b7edc995..0abee22283 100644
--- a/send-pack.c
+++ b/send-pack.c
@@ -15,6 +15,7 @@
#include "oid-array.h"
#include "gpg-interface.h"
#include "cache.h"
+#include "shallow.h"
int option_parse_push_signed(const struct option *opt,
const char *arg, int unset)
diff --git a/shallow.c b/shallow.c
index 321a27670f..b826de9b67 100644
--- a/shallow.c
+++ b/shallow.c
@@ -14,6 +14,7 @@
#include "commit-slab.h"
#include "list-objects.h"
#include "commit-reach.h"
+#include "shallow.h"
void set_alternate_shallow_file(struct repository *r, const char *path, int override)
{
@@ -38,6 +39,19 @@ int register_shallow(struct repository *r, const struct object_id *oid)
return register_commit_graft(r, graft, 0);
}
+int unregister_shallow(const struct object_id *oid)
+{
+ int pos = commit_graft_pos(the_repository, oid->hash);
+ if (pos < 0)
+ return -1;
+ if (pos + 1 < the_repository->parsed_objects->grafts_nr)
+ MOVE_ARRAY(the_repository->parsed_objects->grafts + pos,
+ the_repository->parsed_objects->grafts + pos + 1,
+ the_repository->parsed_objects->grafts_nr - pos - 1);
+ the_repository->parsed_objects->grafts_nr--;
+ return 0;
+}
+
int is_repository_shallow(struct repository *r)
{
FILE *fp;
@@ -78,16 +92,16 @@ static void reset_repository_shallow(struct repository *r)
stat_validity_clear(r->parsed_objects->shallow_stat);
}
-int commit_shallow_file(struct repository *r, struct lock_file *lk)
+int commit_shallow_file(struct repository *r, struct shallow_lock *lk)
{
- int res = commit_lock_file(lk);
+ int res = commit_lock_file(&lk->lock);
reset_repository_shallow(r);
return res;
}
-void rollback_shallow_file(struct repository *r, struct lock_file *lk)
+void rollback_shallow_file(struct repository *r, struct shallow_lock *lk)
{
- rollback_lock_file(lk);
+ rollback_lock_file(&lk->lock);
reset_repository_shallow(r);
}
@@ -352,22 +366,22 @@ const char *setup_temporary_shallow(const struct oid_array *extra)
return "";
}
-void setup_alternate_shallow(struct lock_file *shallow_lock,
+void setup_alternate_shallow(struct shallow_lock *shallow_lock,
const char **alternate_shallow_file,
const struct oid_array *extra)
{
struct strbuf sb = STRBUF_INIT;
int fd;
- fd = hold_lock_file_for_update(shallow_lock,
+ fd = hold_lock_file_for_update(&shallow_lock->lock,
git_path_shallow(the_repository),
LOCK_DIE_ON_ERROR);
check_shallow_file_for_update(the_repository);
if (write_shallow_commits(&sb, 0, extra)) {
if (write_in_full(fd, sb.buf, sb.len) < 0)
die_errno("failed to write to %s",
- get_lock_file_path(shallow_lock));
- *alternate_shallow_file = get_lock_file_path(shallow_lock);
+ get_lock_file_path(&shallow_lock->lock));
+ *alternate_shallow_file = get_lock_file_path(&shallow_lock->lock);
} else
/*
* is_repository_shallow() sees empty string as "no
@@ -400,7 +414,7 @@ void advertise_shallow_grafts(int fd)
*/
void prune_shallow(unsigned options)
{
- struct lock_file shallow_lock = LOCK_INIT;
+ struct shallow_lock shallow_lock = SHALLOW_LOCK_INIT;
struct strbuf sb = STRBUF_INIT;
unsigned flags = SEEN_ONLY;
int fd;
@@ -414,14 +428,14 @@ void prune_shallow(unsigned options)
strbuf_release(&sb);
return;
}
- fd = hold_lock_file_for_update(&shallow_lock,
+ fd = hold_lock_file_for_update(&shallow_lock.lock,
git_path_shallow(the_repository),
LOCK_DIE_ON_ERROR);
check_shallow_file_for_update(the_repository);
if (write_shallow_commits_1(&sb, 0, NULL, flags)) {
if (write_in_full(fd, sb.buf, sb.len) < 0)
die_errno("failed to write to %s",
- get_lock_file_path(&shallow_lock));
+ get_lock_file_path(&shallow_lock.lock));
commit_shallow_file(the_repository, &shallow_lock);
} else {
unlink(git_path_shallow(the_repository));
diff --git a/shallow.h b/shallow.h
new file mode 100644
index 0000000000..5b4a96dcd6
--- /dev/null
+++ b/shallow.h
@@ -0,0 +1,81 @@
+#ifndef SHALLOW_H
+#define SHALLOW_H
+
+#include "lockfile.h"
+#include "object.h"
+#include "repository.h"
+#include "strbuf.h"
+
+void set_alternate_shallow_file(struct repository *r, const char *path, int override);
+int register_shallow(struct repository *r, const struct object_id *oid);
+int unregister_shallow(const struct object_id *oid);
+int is_repository_shallow(struct repository *r);
+
+/*
+ * Lock for updating the $GIT_DIR/shallow file.
+ *
+ * Use `commit_shallow_file()` to commit an update, or
+ * `rollback_shallow_file()` to roll it back. In either case, any
+ * in-memory cached information about which commits are shallow will be
+ * appropriately invalidated so that future operations reflect the new
+ * state.
+ */
+struct shallow_lock {
+ struct lock_file lock;
+};
+#define SHALLOW_LOCK_INIT { LOCK_INIT }
+
+/* commit $GIT_DIR/shallow and reset stat-validity checks */
+int commit_shallow_file(struct repository *r, struct shallow_lock *lk);
+/* rollback $GIT_DIR/shallow and reset stat-validity checks */
+void rollback_shallow_file(struct repository *r, struct shallow_lock *lk);
+
+struct commit_list *get_shallow_commits(struct object_array *heads,
+ int depth, int shallow_flag, int not_shallow_flag);
+struct commit_list *get_shallow_commits_by_rev_list(
+ int ac, const char **av, int shallow_flag, int not_shallow_flag);
+int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
+ const struct oid_array *extra);
+
+void setup_alternate_shallow(struct shallow_lock *shallow_lock,
+ const char **alternate_shallow_file,
+ const struct oid_array *extra);
+
+const char *setup_temporary_shallow(const struct oid_array *extra);
+
+void advertise_shallow_grafts(int);
+
+#define PRUNE_SHOW_ONLY 1
+#define PRUNE_QUICK 2
+void prune_shallow(unsigned options);
+
+/*
+ * Initialize with prepare_shallow_info() or zero-initialize (equivalent to
+ * prepare_shallow_info with a NULL oid_array).
+ */
+struct shallow_info {
+ struct oid_array *shallow;
+ int *ours, nr_ours;
+ int *theirs, nr_theirs;
+ struct oid_array *ref;
+
+ /* for receive-pack */
+ uint32_t **used_shallow;
+ int *need_reachability_test;
+ int *reachable;
+ int *shallow_ref;
+ struct commit **commits;
+ int nr_commits;
+};
+
+void prepare_shallow_info(struct shallow_info *, struct oid_array *);
+void clear_shallow_info(struct shallow_info *);
+void remove_nonexistent_theirs_shallow(struct shallow_info *);
+void assign_shallow_commits_to_refs(struct shallow_info *info,
+ uint32_t **used,
+ int *ref_status);
+int delayed_reachability_test(struct shallow_info *si, int c);
+
+extern struct trace_key trace_shallow;
+
+#endif /* SHALLOW_H */
diff --git a/upload-pack.c b/upload-pack.c
index 902d0ad5e1..613a960624 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -26,6 +26,7 @@
#include "serve.h"
#include "commit-graph.h"
#include "commit-reach.h"
+#include "shallow.h"
/* Remember to update object flag allocation in object.h */
#define THEY_HAVE (1u << 11)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-30 05:04:13 +0300