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-rw-r--r--fast-import.c66
1 files changed, 40 insertions, 26 deletions
diff --git a/fast-import.c b/fast-import.c
index 742e7da6b8..4b9c4b73a0 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -722,13 +722,8 @@ static struct branch *new_branch(const char *name)
if (b)
die("Invalid attempt to create duplicate branch: %s", name);
- switch (check_ref_format(name)) {
- case 0: break; /* its valid */
- case CHECK_REF_FORMAT_ONELEVEL:
- break; /* valid, but too few '/', allow anyway */
- default:
+ if (check_refname_format(name, REFNAME_ALLOW_ONELEVEL))
die("Branch name doesn't conform to GIT standards: %s", name);
- }
b = pool_calloc(1, sizeof(struct branch));
b->name = pool_strdup(name);
@@ -1148,17 +1143,11 @@ static int store_object(
return 0;
}
-static void truncate_pack(off_t to, git_SHA_CTX *ctx)
+static void truncate_pack(struct sha1file_checkpoint *checkpoint)
{
- if (ftruncate(pack_data->pack_fd, to)
- || lseek(pack_data->pack_fd, to, SEEK_SET) != to)
+ if (sha1file_truncate(pack_file, checkpoint))
die_errno("cannot truncate pack to skip duplicate");
- pack_size = to;
-
- /* yes this is a layering violation */
- pack_file->total = to;
- pack_file->offset = 0;
- pack_file->ctx = *ctx;
+ pack_size = checkpoint->offset;
}
static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
@@ -1171,8 +1160,8 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
unsigned long hdrlen;
off_t offset;
git_SHA_CTX c;
- git_SHA_CTX pack_file_ctx;
git_zstream s;
+ struct sha1file_checkpoint checkpoint;
int status = Z_OK;
/* Determine if we should auto-checkpoint. */
@@ -1180,11 +1169,8 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
|| (pack_size + 60 + len) < pack_size)
cycle_packfile();
- offset = pack_size;
-
- /* preserve the pack_file SHA1 ctx in case we have to truncate later */
- sha1flush(pack_file);
- pack_file_ctx = pack_file->ctx;
+ sha1file_checkpoint(pack_file, &checkpoint);
+ offset = checkpoint.offset;
hdrlen = snprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1;
if (out_sz <= hdrlen)
@@ -1250,14 +1236,14 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
if (e->idx.offset) {
duplicate_count_by_type[OBJ_BLOB]++;
- truncate_pack(offset, &pack_file_ctx);
+ truncate_pack(&checkpoint);
} else if (find_sha1_pack(sha1, packed_git)) {
e->type = OBJ_BLOB;
e->pack_id = MAX_PACK_ID;
e->idx.offset = 1; /* just not zero! */
duplicate_count_by_type[OBJ_BLOB]++;
- truncate_pack(offset, &pack_file_ctx);
+ truncate_pack(&checkpoint);
} else {
e->depth = 0;
@@ -2178,6 +2164,11 @@ static uintmax_t do_change_note_fanout(
if (tmp_hex_sha1_len == 40 && !get_sha1_hex(hex_sha1, sha1)) {
/* This is a note entry */
+ if (fanout == 0xff) {
+ /* Counting mode, no rename */
+ num_notes++;
+ continue;
+ }
construct_path_with_fanout(hex_sha1, fanout, realpath);
if (!strcmp(fullpath, realpath)) {
/* Note entry is in correct location */
@@ -2384,7 +2375,7 @@ static void file_change_cr(struct branch *b, int rename)
leaf.tree);
}
-static void note_change_n(struct branch *b, unsigned char old_fanout)
+static void note_change_n(struct branch *b, unsigned char *old_fanout)
{
const char *p = command_buf.buf + 2;
static struct strbuf uq = STRBUF_INIT;
@@ -2395,6 +2386,23 @@ static void note_change_n(struct branch *b, unsigned char old_fanout)
uint16_t inline_data = 0;
unsigned char new_fanout;
+ /*
+ * When loading a branch, we don't traverse its tree to count the real
+ * number of notes (too expensive to do this for all non-note refs).
+ * This means that recently loaded notes refs might incorrectly have
+ * b->num_notes == 0, and consequently, old_fanout might be wrong.
+ *
+ * Fix this by traversing the tree and counting the number of notes
+ * when b->num_notes == 0. If the notes tree is truly empty, the
+ * calculation should not take long.
+ */
+ if (b->num_notes == 0 && *old_fanout == 0) {
+ /* Invoke change_note_fanout() in "counting mode". */
+ b->num_notes = change_note_fanout(&b->branch_tree, 0xff);
+ *old_fanout = convert_num_notes_to_fanout(b->num_notes);
+ }
+
+ /* Now parse the notemodify command. */
/* <dataref> or 'inline' */
if (*p == ':') {
char *x;
@@ -2416,6 +2424,8 @@ static void note_change_n(struct branch *b, unsigned char old_fanout)
/* <committish> */
s = lookup_branch(p);
if (s) {
+ if (is_null_sha1(s->sha1))
+ die("Can't add a note on empty branch.");
hashcpy(commit_sha1, s->sha1);
} else if (*p == ':') {
uintmax_t commit_mark = strtoumax(p + 1, NULL, 10);
@@ -2453,7 +2463,7 @@ static void note_change_n(struct branch *b, unsigned char old_fanout)
typename(type), command_buf.buf);
}
- construct_path_with_fanout(sha1_to_hex(commit_sha1), old_fanout, path);
+ construct_path_with_fanout(sha1_to_hex(commit_sha1), *old_fanout, path);
if (tree_content_remove(&b->branch_tree, path, NULL))
b->num_notes--;
@@ -2640,7 +2650,7 @@ static void parse_new_commit(void)
else if (!prefixcmp(command_buf.buf, "C "))
file_change_cr(b, 0);
else if (!prefixcmp(command_buf.buf, "N "))
- note_change_n(b, prev_fanout);
+ note_change_n(b, &prev_fanout);
else if (!strcmp("deleteall", command_buf.buf))
file_change_deleteall(b);
else if (!prefixcmp(command_buf.buf, "ls "))
@@ -2717,6 +2727,8 @@ static void parse_new_tag(void)
from = strchr(command_buf.buf, ' ') + 1;
s = lookup_branch(from);
if (s) {
+ if (is_null_sha1(s->sha1))
+ die("Can't tag an empty branch.");
hashcpy(sha1, s->sha1);
type = OBJ_COMMIT;
} else if (*from == ':') {
@@ -3293,6 +3305,8 @@ int main(int argc, const char **argv)
git_extract_argv0_path(argv[0]);
+ git_setup_gettext();
+
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(fast_import_usage);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 12:07:22 +0000