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Diffstat (limited to 'bundle.c')
-rw-r--r--bundle.c150
1 files changed, 88 insertions, 62 deletions
diff --git a/bundle.c b/bundle.c
index 2e2dbd50ef..24cbe40986 100644
--- a/bundle.c
+++ b/bundle.c
@@ -1,6 +1,8 @@
#include "cache.h"
#include "lockfile.h"
#include "bundle.h"
+#include "object-store.h"
+#include "repository.h"
#include "object.h"
#include "commit.h"
#include "diff.h"
@@ -12,11 +14,11 @@
static const char bundle_signature[] = "# v2 git bundle\n";
-static void add_to_ref_list(const unsigned char *sha1, const char *name,
+static void add_to_ref_list(const struct object_id *oid, const char *name,
struct ref_list *list)
{
ALLOC_GROW(list->list, list->nr + 1, list->alloc);
- hashcpy(list->list[list->nr].sha1, sha1);
+ oidcpy(&list->list[list->nr].oid, oid);
list->list[list->nr].name = xstrdup(name);
list->nr++;
}
@@ -40,8 +42,9 @@ static int parse_bundle_header(int fd, struct bundle_header *header,
/* The bundle header ends with an empty line */
while (!strbuf_getwholeline_fd(&buf, fd, '\n') &&
buf.len && buf.buf[0] != '\n') {
- unsigned char sha1[20];
+ struct object_id oid;
int is_prereq = 0;
+ const char *p;
if (*buf.buf == '-') {
is_prereq = 1;
@@ -54,9 +57,9 @@ static int parse_bundle_header(int fd, struct bundle_header *header,
* Prerequisites have object name that is optionally
* followed by SP and subject line.
*/
- if (get_sha1_hex(buf.buf, sha1) ||
- (buf.len > 40 && !isspace(buf.buf[40])) ||
- (!is_prereq && buf.len <= 40)) {
+ if (parse_oid_hex(buf.buf, &oid, &p) ||
+ (*p && !isspace(*p)) ||
+ (!is_prereq && !*p)) {
if (report_path)
error(_("unrecognized header: %s%s (%d)"),
(is_prereq ? "-" : ""), buf.buf, (int)buf.len);
@@ -64,9 +67,9 @@ static int parse_bundle_header(int fd, struct bundle_header *header,
break;
} else {
if (is_prereq)
- add_to_ref_list(sha1, "", &header->prerequisites);
+ add_to_ref_list(&oid, "", &header->prerequisites);
else
- add_to_ref_list(sha1, buf.buf + 41, &header->references);
+ add_to_ref_list(&oid, p + 1, &header->references);
}
}
@@ -115,7 +118,7 @@ static int list_refs(struct ref_list *r, int argc, const char **argv)
if (j == argc)
continue;
}
- printf("%s %s\n", sha1_to_hex(r->list[i].sha1),
+ printf("%s %s\n", oid_to_hex(&r->list[i].oid),
r->list[i].name);
}
return 0;
@@ -133,7 +136,6 @@ int verify_bundle(struct bundle_header *header, int verbose)
struct ref_list *p = &header->prerequisites;
struct rev_info revs;
const char *argv[] = {NULL, "--all", NULL};
- struct object_array refs;
struct commit *commit;
int i, ret = 0, req_nr;
const char *message = _("Repository lacks these prerequisite commits:");
@@ -141,7 +143,7 @@ int verify_bundle(struct bundle_header *header, int verbose)
init_revisions(&revs, NULL);
for (i = 0; i < p->nr; i++) {
struct ref_list_entry *e = p->list + i;
- struct object *o = parse_object(e->sha1);
+ struct object *o = parse_object(the_repository, &e->oid);
if (o) {
o->flags |= PREREQ_MARK;
add_pending_object(&revs, o, e->name);
@@ -149,16 +151,13 @@ int verify_bundle(struct bundle_header *header, int verbose)
}
if (++ret == 1)
error("%s", message);
- error("%s %s", sha1_to_hex(e->sha1), e->name);
+ error("%s %s", oid_to_hex(&e->oid), e->name);
}
if (revs.pending.nr != p->nr)
return ret;
req_nr = revs.pending.nr;
setup_revisions(2, argv, &revs, NULL);
- refs = revs.pending;
- revs.leak_pending = 1;
-
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
@@ -167,16 +166,24 @@ int verify_bundle(struct bundle_header *header, int verbose)
if (commit->object.flags & PREREQ_MARK)
i--;
- for (i = 0; i < req_nr; i++)
- if (!(refs.objects[i].item->flags & SHOWN)) {
- if (++ret == 1)
- error("%s", message);
- error("%s %s", sha1_to_hex(refs.objects[i].item->sha1),
- refs.objects[i].name);
- }
+ for (i = 0; i < p->nr; i++) {
+ struct ref_list_entry *e = p->list + i;
+ struct object *o = parse_object(the_repository, &e->oid);
+ assert(o); /* otherwise we'd have returned early */
+ if (o->flags & SHOWN)
+ continue;
+ if (++ret == 1)
+ error("%s", message);
+ error("%s %s", oid_to_hex(&e->oid), e->name);
+ }
- clear_commit_marks_for_object_array(&refs, ALL_REV_FLAGS);
- free(refs.objects);
+ /* Clean up objects used, as they will be reused. */
+ for (i = 0; i < p->nr; i++) {
+ struct ref_list_entry *e = p->list + i;
+ commit = lookup_commit_reference_gently(the_repository, &e->oid, 1);
+ if (commit)
+ clear_commit_marks(commit, ALL_REV_FLAGS);
+ }
if (verbose) {
struct ref_list *r;
@@ -211,13 +218,13 @@ static int is_tag_in_date_range(struct object *tag, struct rev_info *revs)
unsigned long size;
enum object_type type;
char *buf = NULL, *line, *lineend;
- unsigned long date;
+ timestamp_t date;
int result = 1;
if (revs->max_age == -1 && revs->min_age == -1)
goto out;
- buf = read_sha1_file(tag->sha1, &type, &size);
+ buf = read_object_file(&tag->oid, &type, &size);
if (!buf)
goto out;
line = memmem(buf, size, "\ntagger ", 8);
@@ -227,7 +234,7 @@ static int is_tag_in_date_range(struct object *tag, struct rev_info *revs)
line = memchr(line, '>', lineend ? lineend - line : buf + size - line);
if (!line++)
goto out;
- date = strtoul(line, NULL, 10);
+ date = parse_timestamp(line, NULL, 10);
result = (revs->max_age == -1 || revs->max_age < date) &&
(revs->min_age == -1 || revs->min_age > date);
out:
@@ -235,7 +242,9 @@ out:
return result;
}
-static int write_pack_data(int bundle_fd, struct lock_file *lock, struct rev_info *revs)
+
+/* Write the pack data to bundle_fd, then close it if it is > 1. */
+static int write_pack_data(int bundle_fd, struct rev_info *revs)
{
struct child_process pack_objects = CHILD_PROCESS_INIT;
int i;
@@ -250,18 +259,11 @@ static int write_pack_data(int bundle_fd, struct lock_file *lock, struct rev_inf
if (start_command(&pack_objects))
return error(_("Could not spawn pack-objects"));
- /*
- * start_command closed bundle_fd if it was > 1
- * so set the lock fd to -1 so commit_lock_file()
- * won't fail trying to close it.
- */
- lock->fd = -1;
-
for (i = 0; i < revs->pending.nr; i++) {
struct object *object = revs->pending.objects[i].item;
if (object->flags & UNINTERESTING)
write_or_die(pack_objects.in, "^", 1);
- write_or_die(pack_objects.in, sha1_to_hex(object->sha1), 40);
+ write_or_die(pack_objects.in, oid_to_hex(&object->oid), GIT_SHA1_HEXSZ);
write_or_die(pack_objects.in, "\n", 1);
}
close(pack_objects.in);
@@ -290,16 +292,18 @@ static int compute_and_write_prerequisites(int bundle_fd,
return -1;
rls_fout = xfdopen(rls.out, "r");
while (strbuf_getwholeline(&buf, rls_fout, '\n') != EOF) {
- unsigned char sha1[20];
+ struct object_id oid;
if (buf.len > 0 && buf.buf[0] == '-') {
write_or_die(bundle_fd, buf.buf, buf.len);
- if (!get_sha1_hex(buf.buf + 1, sha1)) {
- struct object *object = parse_object_or_die(sha1, buf.buf);
+ if (!get_oid_hex(buf.buf + 1, &oid)) {
+ struct object *object = parse_object_or_die(&oid,
+ buf.buf);
object->flags |= UNINTERESTING;
add_pending_object(revs, object, buf.buf);
}
- } else if (!get_sha1_hex(buf.buf, sha1)) {
- struct object *object = parse_object_or_die(sha1, buf.buf);
+ } else if (!get_oid_hex(buf.buf, &oid)) {
+ struct object *object = parse_object_or_die(&oid,
+ buf.buf);
object->flags |= SHOWN;
}
}
@@ -326,23 +330,23 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
for (i = 0; i < revs->pending.nr; i++) {
struct object_array_entry *e = revs->pending.objects + i;
- unsigned char sha1[20];
+ struct object_id oid;
char *ref;
const char *display_ref;
int flag;
if (e->item->flags & UNINTERESTING)
continue;
- if (dwim_ref(e->name, strlen(e->name), sha1, &ref) != 1)
- continue;
- if (read_ref_full(e->name, RESOLVE_REF_READING, sha1, &flag))
+ if (dwim_ref(e->name, strlen(e->name), &oid, &ref) != 1)
+ goto skip_write_ref;
+ if (read_ref_full(e->name, RESOLVE_REF_READING, &oid, &flag))
flag = 0;
display_ref = (flag & REF_ISSYMREF) ? e->name : ref;
if (e->item->type == OBJ_TAG &&
!is_tag_in_date_range(e->item, revs)) {
e->item->flags |= UNINTERESTING;
- continue;
+ goto skip_write_ref;
}
/*
@@ -357,8 +361,7 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
if (!(e->item->flags & SHOWN) && e->item->type == OBJ_COMMIT) {
warning(_("ref '%s' is excluded by the rev-list options"),
e->name);
- free(ref);
- continue;
+ goto skip_write_ref;
}
/*
* If you run "git bundle create bndl v1.0..v2.0", the
@@ -366,13 +369,14 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
* commit that is referenced by the tag, and not the tag
* itself.
*/
- if (hashcmp(sha1, e->item->sha1)) {
+ if (oidcmp(&oid, &e->item->oid)) {
/*
* Is this the positive end of a range expressed
* in terms of a tag (e.g. v2.0 from the range
* "v1.0..v2.0")?
*/
- struct commit *one = lookup_commit_reference(sha1);
+ struct commit *one = lookup_commit_reference(the_repository,
+ &oid);
struct object *obj;
if (e->item == &(one->object)) {
@@ -384,19 +388,19 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
* end up triggering "empty bundle"
* error.
*/
- obj = parse_object_or_die(sha1, e->name);
+ obj = parse_object_or_die(&oid, e->name);
obj->flags |= SHOWN;
add_pending_object(revs, obj, e->name);
}
- free(ref);
- continue;
+ goto skip_write_ref;
}
ref_count++;
- write_or_die(bundle_fd, sha1_to_hex(e->item->sha1), 40);
+ write_or_die(bundle_fd, oid_to_hex(&e->item->oid), 40);
write_or_die(bundle_fd, " ", 1);
write_or_die(bundle_fd, display_ref, strlen(display_ref));
write_or_die(bundle_fd, "\n", 1);
+ skip_write_ref:
free(ref);
}
@@ -408,7 +412,7 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
int create_bundle(struct bundle_header *header, const char *path,
int argc, const char **argv)
{
- static struct lock_file lock;
+ struct lock_file lock = LOCK_INIT;
int bundle_fd = -1;
int bundle_to_stdout;
int ref_count = 0;
@@ -417,10 +421,21 @@ int create_bundle(struct bundle_header *header, const char *path,
bundle_to_stdout = !strcmp(path, "-");
if (bundle_to_stdout)
bundle_fd = 1;
- else
+ else {
bundle_fd = hold_lock_file_for_update(&lock, path,
LOCK_DIE_ON_ERROR);
+ /*
+ * write_pack_data() will close the fd passed to it,
+ * but commit_lock_file() will also try to close the
+ * lockfile's fd. So make a copy of the file
+ * descriptor to avoid trying to close it twice.
+ */
+ bundle_fd = dup(bundle_fd);
+ if (bundle_fd < 0)
+ die_errno("unable to dup file descriptor");
+ }
+
/* write signature */
write_or_die(bundle_fd, bundle_signature, strlen(bundle_signature));
@@ -430,12 +445,14 @@ int create_bundle(struct bundle_header *header, const char *path,
/* write prerequisites */
if (compute_and_write_prerequisites(bundle_fd, &revs, argc, argv))
- return -1;
+ goto err;
argc = setup_revisions(argc, argv, &revs, NULL);
- if (argc > 1)
- return error(_("unrecognized argument: %s"), argv[1]);
+ if (argc > 1) {
+ error(_("unrecognized argument: %s"), argv[1]);
+ goto err;
+ }
object_array_remove_duplicates(&revs.pending);
@@ -443,17 +460,26 @@ int create_bundle(struct bundle_header *header, const char *path,
if (!ref_count)
die(_("Refusing to create empty bundle."));
else if (ref_count < 0)
- return -1;
+ goto err;
/* write pack */
- if (write_pack_data(bundle_fd, &lock, &revs))
- return -1;
+ if (write_pack_data(bundle_fd, &revs)) {
+ bundle_fd = -1; /* already closed by the above call */
+ goto err;
+ }
if (!bundle_to_stdout) {
if (commit_lock_file(&lock))
die_errno(_("cannot create '%s'"), path);
}
return 0;
+err:
+ if (!bundle_to_stdout) {
+ if (0 <= bundle_fd)
+ close(bundle_fd);
+ rollback_lock_file(&lock);
+ }
+ return -1;
}
int unbundle(struct bundle_header *header, int bundle_fd, int flags)
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-13 00:51:06 +0000