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-rw-r--r--commit.c185
1 files changed, 95 insertions, 90 deletions
diff --git a/commit.c b/commit.c
index 856fd4aeef..906298052d 100644
--- a/commit.c
+++ b/commit.c
@@ -11,6 +11,7 @@
#include "commit-slab.h"
#include "prio-queue.h"
#include "sha1-lookup.h"
+#include "wt-status.h"
static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
@@ -18,38 +19,38 @@ int save_commit_buffer = 1;
const char *commit_type = "commit";
-struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
+struct commit *lookup_commit_reference_gently(const struct object_id *oid,
int quiet)
{
- struct object *obj = deref_tag(parse_object(sha1), NULL, 0);
+ struct object *obj = deref_tag(parse_object(oid), NULL, 0);
if (!obj)
return NULL;
return object_as_type(obj, OBJ_COMMIT, quiet);
}
-struct commit *lookup_commit_reference(const unsigned char *sha1)
+struct commit *lookup_commit_reference(const struct object_id *oid)
{
- return lookup_commit_reference_gently(sha1, 0);
+ return lookup_commit_reference_gently(oid, 0);
}
-struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name)
+struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref_name)
{
- struct commit *c = lookup_commit_reference(sha1);
+ struct commit *c = lookup_commit_reference(oid);
if (!c)
die(_("could not parse %s"), ref_name);
- if (hashcmp(sha1, c->object.oid.hash)) {
+ if (oidcmp(oid, &c->object.oid)) {
warning(_("%s %s is not a commit!"),
- ref_name, sha1_to_hex(sha1));
+ ref_name, oid_to_hex(oid));
}
return c;
}
-struct commit *lookup_commit(const unsigned char *sha1)
+struct commit *lookup_commit(const struct object_id *oid)
{
- struct object *obj = lookup_object(sha1);
+ struct object *obj = lookup_object(oid->hash);
if (!obj)
- return create_object(sha1, alloc_commit_node());
+ return create_object(oid->hash, alloc_commit_node());
return object_as_type(obj, OBJ_COMMIT, 0);
}
@@ -58,15 +59,15 @@ struct commit *lookup_commit_reference_by_name(const char *name)
struct object_id oid;
struct commit *commit;
- if (get_sha1_committish(name, oid.hash))
+ if (get_oid_committish(name, &oid))
return NULL;
- commit = lookup_commit_reference(oid.hash);
+ commit = lookup_commit_reference(&oid);
if (parse_commit(commit))
return NULL;
return commit;
}
-static unsigned long parse_commit_date(const char *buf, const char *tail)
+static timestamp_t parse_commit_date(const char *buf, const char *tail)
{
const char *dateptr;
@@ -89,8 +90,8 @@ static unsigned long parse_commit_date(const char *buf, const char *tail)
/* nada */;
if (buf >= tail)
return 0;
- /* dateptr < buf && buf[-1] == '\n', so strtoul will stop at buf-1 */
- return strtoul(dateptr, NULL, 10);
+ /* dateptr < buf && buf[-1] == '\n', so parsing will stop at buf-1 */
+ return parse_timestamp(dateptr, NULL, 10);
}
static struct commit_graft **commit_graft;
@@ -133,47 +134,53 @@ int register_commit_graft(struct commit_graft *graft, int ignore_dups)
return 0;
}
-struct commit_graft *read_graft_line(char *buf, int len)
+struct commit_graft *read_graft_line(struct strbuf *line)
{
/* The format is just "Commit Parent1 Parent2 ...\n" */
- int i;
+ int i, phase;
+ const char *tail = NULL;
struct commit_graft *graft = NULL;
- const int entry_size = GIT_SHA1_HEXSZ + 1;
+ struct object_id dummy_oid, *oid;
- while (len && isspace(buf[len-1]))
- buf[--len] = '\0';
- if (buf[0] == '#' || buf[0] == '\0')
+ strbuf_rtrim(line);
+ if (!line->len || line->buf[0] == '#')
return NULL;
- if ((len + 1) % entry_size)
- goto bad_graft_data;
- i = (len + 1) / entry_size - 1;
- graft = xmalloc(st_add(sizeof(*graft), st_mult(GIT_SHA1_RAWSZ, i)));
- graft->nr_parent = i;
- if (get_oid_hex(buf, &graft->oid))
- goto bad_graft_data;
- for (i = GIT_SHA1_HEXSZ; i < len; i += entry_size) {
- if (buf[i] != ' ')
- goto bad_graft_data;
- if (get_sha1_hex(buf + i + 1, graft->parent[i/entry_size].hash))
+ /*
+ * phase 0 verifies line, counts hashes in line and allocates graft
+ * phase 1 fills graft
+ */
+ for (phase = 0; phase < 2; phase++) {
+ oid = graft ? &graft->oid : &dummy_oid;
+ if (parse_oid_hex(line->buf, oid, &tail))
goto bad_graft_data;
+ for (i = 0; *tail != '\0'; i++) {
+ oid = graft ? &graft->parent[i] : &dummy_oid;
+ if (!isspace(*tail++) || parse_oid_hex(tail, oid, &tail))
+ goto bad_graft_data;
+ }
+ if (!graft) {
+ graft = xmalloc(st_add(sizeof(*graft),
+ st_mult(sizeof(struct object_id), i)));
+ graft->nr_parent = i;
+ }
}
return graft;
bad_graft_data:
- error("bad graft data: %s", buf);
- free(graft);
+ error("bad graft data: %s", line->buf);
+ assert(!graft);
return NULL;
}
static int read_graft_file(const char *graft_file)
{
- FILE *fp = fopen(graft_file, "r");
+ FILE *fp = fopen_or_warn(graft_file, "r");
struct strbuf buf = STRBUF_INIT;
if (!fp)
return -1;
while (!strbuf_getwholeline(&buf, fp, '\n')) {
/* The format is just "Commit Parent1 Parent2 ...\n" */
- struct commit_graft *graft = read_graft_line(buf.buf, buf.len);
+ struct commit_graft *graft = read_graft_line(&buf);
if (!graft)
continue;
if (register_commit_graft(graft, 1))
@@ -198,11 +205,11 @@ static void prepare_commit_graft(void)
commit_graft_prepared = 1;
}
-struct commit_graft *lookup_commit_graft(const unsigned char *sha1)
+struct commit_graft *lookup_commit_graft(const struct object_id *oid)
{
int pos;
prepare_commit_graft();
- pos = commit_graft_pos(sha1);
+ pos = commit_graft_pos(oid->hash);
if (pos < 0)
return NULL;
return commit_graft[pos];
@@ -216,15 +223,14 @@ int for_each_commit_graft(each_commit_graft_fn fn, void *cb_data)
return ret;
}
-int unregister_shallow(const unsigned char *sha1)
+int unregister_shallow(const struct object_id *oid)
{
- int pos = commit_graft_pos(sha1);
+ int pos = commit_graft_pos(oid->hash);
if (pos < 0)
return -1;
if (pos + 1 < commit_graft_nr)
- memmove(commit_graft + pos, commit_graft + pos + 1,
- sizeof(struct commit_graft *)
- * (commit_graft_nr - pos - 1));
+ MOVE_ARRAY(commit_graft + pos, commit_graft + pos + 1,
+ commit_graft_nr - pos - 1);
commit_graft_nr--;
return 0;
}
@@ -286,8 +292,7 @@ void free_commit_buffer(struct commit *commit)
{
struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
if (v) {
- free(v->buffer);
- v->buffer = NULL;
+ FREE_AND_NULL(v->buffer);
v->size = 0;
}
}
@@ -331,11 +336,11 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
if (get_sha1_hex(bufptr + 5, parent.hash) < 0)
return error("bad tree pointer in commit %s",
oid_to_hex(&item->object.oid));
- item->tree = lookup_tree(parent.hash);
+ item->tree = lookup_tree(&parent);
bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */
pptr = &item->parents;
- graft = lookup_commit_graft(item->object.oid.hash);
+ graft = lookup_commit_graft(&item->object.oid);
while (bufptr + parent_entry_len < tail && !memcmp(bufptr, "parent ", 7)) {
struct commit *new_parent;
@@ -350,7 +355,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
*/
if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
continue;
- new_parent = lookup_commit(parent.hash);
+ new_parent = lookup_commit(&parent);
if (new_parent)
pptr = &commit_list_insert(new_parent, pptr)->next;
}
@@ -358,7 +363,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
int i;
struct commit *new_parent;
for (i = 0; i < graft->nr_parent; i++) {
- new_parent = lookup_commit(graft->parent[i].hash);
+ new_parent = lookup_commit(&graft->parent[i]);
if (!new_parent)
continue;
pptr = &commit_list_insert(new_parent, pptr)->next;
@@ -415,8 +420,7 @@ int find_commit_subject(const char *commit_buffer, const char **subject)
p++;
if (*p) {
p = skip_blank_lines(p + 2);
- for (eol = p; *eol && *eol != '\n'; eol++)
- ; /* do nothing */
+ eol = strchrnul(p, '\n');
} else
eol = p;
@@ -474,8 +478,8 @@ struct commit_list * commit_list_insert_by_date(struct commit *item, struct comm
static int commit_list_compare_by_date(const void *a, const void *b)
{
- unsigned long a_date = ((const struct commit_list *)a)->item->date;
- unsigned long b_date = ((const struct commit_list *)b)->item->date;
+ timestamp_t a_date = ((const struct commit_list *)a)->item->date;
+ timestamp_t b_date = ((const struct commit_list *)b)->item->date;
if (a_date < b_date)
return 1;
if (a_date > b_date)
@@ -563,7 +567,7 @@ void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark)
for (i = 0; i < a->nr; i++) {
object = a->objects[i].item;
- commit = lookup_commit_reference_gently(object->oid.hash, 1);
+ commit = lookup_commit_reference_gently(&object->oid, 1);
if (commit)
clear_commit_marks(commit, mark);
}
@@ -599,7 +603,7 @@ static void record_author_date(struct author_date_slab *author_date,
const char *ident_line;
size_t ident_len;
char *date_end;
- unsigned long date;
+ timestamp_t date;
ident_line = find_commit_header(buffer, "author", &ident_len);
if (!ident_line)
@@ -608,7 +612,7 @@ static void record_author_date(struct author_date_slab *author_date,
!ident.date_begin || !ident.date_end)
goto fail_exit; /* malformed "author" line */
- date = strtoul(ident.date_begin, &date_end, 10);
+ date = parse_timestamp(ident.date_begin, &date_end, 10);
if (date_end != ident.date_end)
goto fail_exit; /* malformed date */
*(author_date_slab_at(author_date, commit)) = date;
@@ -622,8 +626,8 @@ static int compare_commits_by_author_date(const void *a_, const void *b_,
{
const struct commit *a = a_, *b = b_;
struct author_date_slab *author_date = cb_data;
- unsigned long a_date = *(author_date_slab_at(author_date, a));
- unsigned long b_date = *(author_date_slab_at(author_date, b));
+ timestamp_t a_date = *(author_date_slab_at(author_date, a));
+ timestamp_t b_date = *(author_date_slab_at(author_date, b));
/* newer commits with larger date first */
if (a_date < b_date)
@@ -1308,11 +1312,11 @@ void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data)
static inline int standard_header_field(const char *field, size_t len)
{
- return ((len == 4 && !memcmp(field, "tree ", 5)) ||
- (len == 6 && !memcmp(field, "parent ", 7)) ||
- (len == 6 && !memcmp(field, "author ", 7)) ||
- (len == 9 && !memcmp(field, "committer ", 10)) ||
- (len == 8 && !memcmp(field, "encoding ", 9)));
+ return ((len == 4 && !memcmp(field, "tree", 4)) ||
+ (len == 6 && !memcmp(field, "parent", 6)) ||
+ (len == 6 && !memcmp(field, "author", 6)) ||
+ (len == 9 && !memcmp(field, "committer", 9)) ||
+ (len == 8 && !memcmp(field, "encoding", 8)));
}
static int excluded_header_field(const char *field, size_t len, const char **exclude)
@@ -1322,8 +1326,7 @@ static int excluded_header_field(const char *field, size_t len, const char **exc
while (*exclude) {
size_t xlen = strlen(*exclude);
- if (len == xlen &&
- !memcmp(field, *exclude, xlen) && field[xlen] == ' ')
+ if (len == xlen && !memcmp(field, *exclude, xlen))
return 1;
exclude++;
}
@@ -1354,12 +1357,11 @@ static struct commit_extra_header *read_commit_extra_header_lines(
strbuf_reset(&buf);
it = NULL;
- eof = strchr(line, ' ');
- if (next <= eof)
+ eof = memchr(line, ' ', next - line);
+ if (!eof)
eof = next;
-
- if (standard_header_field(line, eof - line) ||
- excluded_header_field(line, eof - line, exclude))
+ else if (standard_header_field(line, eof - line) ||
+ excluded_header_field(line, eof - line, exclude))
continue;
it = xcalloc(1, sizeof(*it));
@@ -1568,10 +1570,13 @@ int commit_tree_extended(const char *msg, size_t msg_len,
if (encoding_is_utf8 && !verify_utf8(&buffer))
fprintf(stderr, _(commit_utf8_warn));
- if (sign_commit && do_sign_commit(&buffer, sign_commit))
- return -1;
+ if (sign_commit && do_sign_commit(&buffer, sign_commit)) {
+ result = -1;
+ goto out;
+ }
result = write_sha1_file(buffer.buf, buffer.len, commit_type, ret);
+out:
strbuf_release(&buffer);
return result;
}
@@ -1590,9 +1595,9 @@ struct commit *get_merge_parent(const char *name)
struct object *obj;
struct commit *commit;
struct object_id oid;
- if (get_sha1(name, oid.hash))
+ if (get_oid(name, &oid))
return NULL;
- obj = parse_object(oid.hash);
+ obj = parse_object(&oid);
commit = (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT);
if (commit && !commit->util)
set_merge_remote_desc(commit, name, obj);
@@ -1649,47 +1654,47 @@ const char *find_commit_header(const char *msg, const char *key, size_t *out_len
}
/*
- * Inspect sb and determine the true "end" of the log message, in
+ * Inspect the given string and determine the true "end" of the log message, in
* order to find where to put a new Signed-off-by: line. Ignored are
- * trailing comment lines and blank lines, and also the traditional
- * "Conflicts:" block that is not commented out, so that we can use
- * "git commit -s --amend" on an existing commit that forgot to remove
- * it.
+ * trailing comment lines and blank lines. To support "git commit -s
+ * --amend" on an existing commit, we also ignore "Conflicts:". To
+ * support "git commit -v", we truncate at cut lines.
*
* Returns the number of bytes from the tail to ignore, to be fed as
* the second parameter to append_signoff().
*/
-int ignore_non_trailer(struct strbuf *sb)
+int ignore_non_trailer(const char *buf, size_t len)
{
int boc = 0;
int bol = 0;
int in_old_conflicts_block = 0;
+ size_t cutoff = wt_status_locate_end(buf, len);
- while (bol < sb->len) {
- char *next_line;
+ while (bol < cutoff) {
+ const char *next_line = memchr(buf + bol, '\n', len - bol);
- if (!(next_line = memchr(sb->buf + bol, '\n', sb->len - bol)))
- next_line = sb->buf + sb->len;
+ if (!next_line)
+ next_line = buf + len;
else
next_line++;
- if (sb->buf[bol] == comment_line_char || sb->buf[bol] == '\n') {
+ if (buf[bol] == comment_line_char || buf[bol] == '\n') {
/* is this the first of the run of comments? */
if (!boc)
boc = bol;
/* otherwise, it is just continuing */
- } else if (starts_with(sb->buf + bol, "Conflicts:\n")) {
+ } else if (starts_with(buf + bol, "Conflicts:\n")) {
in_old_conflicts_block = 1;
if (!boc)
boc = bol;
- } else if (in_old_conflicts_block && sb->buf[bol] == '\t') {
+ } else if (in_old_conflicts_block && buf[bol] == '\t') {
; /* a pathname in the conflicts block */
} else if (boc) {
/* the previous was not trailing comment */
boc = 0;
in_old_conflicts_block = 0;
}
- bol = next_line - sb->buf;
+ bol = next_line - buf;
}
- return boc ? sb->len - boc : 0;
+ return boc ? len - boc : len - cutoff;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 02:50:20 +0000