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-rw-r--r--fast-import.c103
1 files changed, 87 insertions, 16 deletions
diff --git a/fast-import.c b/fast-import.c
index b4e2105334..b8b65a801c 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1770,7 +1770,6 @@ static int read_next_command(void)
} else {
struct recent_command *rc;
- strbuf_detach(&command_buf, NULL);
stdin_eof = strbuf_getline_lf(&command_buf, stdin);
if (stdin_eof)
return EOF;
@@ -1791,7 +1790,7 @@ static int read_next_command(void)
free(rc->buf);
}
- rc->buf = command_buf.buf;
+ rc->buf = xstrdup(command_buf.buf);
rc->prev = cmd_tail;
rc->next = cmd_hist.prev;
rc->prev->next = rc;
@@ -1840,7 +1839,6 @@ static int parse_data(struct strbuf *sb, uintmax_t limit, uintmax_t *len_res)
char *term = xstrdup(data);
size_t term_len = command_buf.len - (data - command_buf.buf);
- strbuf_detach(&command_buf, NULL);
for (;;) {
if (strbuf_getline_lf(&command_buf, stdin) == EOF)
die("EOF in data (terminator '%s' not found)", term);
@@ -2498,18 +2496,14 @@ static void parse_from_existing(struct branch *b)
}
}
-static int parse_from(struct branch *b)
+static int parse_objectish(struct branch *b, const char *objectish)
{
- const char *from;
struct branch *s;
struct object_id oid;
- if (!skip_prefix(command_buf.buf, "from ", &from))
- return 0;
-
oidcpy(&oid, &b->branch_tree.versions[1].oid);
- s = lookup_branch(from);
+ s = lookup_branch(objectish);
if (b == s)
die("Can't create a branch from itself: %s", b->name);
else if (s) {
@@ -2517,8 +2511,8 @@ static int parse_from(struct branch *b)
oidcpy(&b->oid, &s->oid);
oidcpy(&b->branch_tree.versions[0].oid, t);
oidcpy(&b->branch_tree.versions[1].oid, t);
- } else if (*from == ':') {
- uintmax_t idnum = parse_mark_ref_eol(from);
+ } else if (*objectish == ':') {
+ uintmax_t idnum = parse_mark_ref_eol(objectish);
struct object_entry *oe = find_mark(idnum);
if (oe->type != OBJ_COMMIT)
die("Mark :%" PRIuMAX " not a commit", idnum);
@@ -2532,13 +2526,13 @@ static int parse_from(struct branch *b)
} else
parse_from_existing(b);
}
- } else if (!get_oid(from, &b->oid)) {
+ } else if (!get_oid(objectish, &b->oid)) {
parse_from_existing(b);
if (is_null_oid(&b->oid))
b->delete = 1;
}
else
- die("Invalid ref name or SHA1 expression: %s", from);
+ die("Invalid ref name or SHA1 expression: %s", objectish);
if (b->branch_tree.tree && !oideq(&oid, &b->branch_tree.versions[1].oid)) {
release_tree_content_recursive(b->branch_tree.tree);
@@ -2549,6 +2543,26 @@ static int parse_from(struct branch *b)
return 1;
}
+static int parse_from(struct branch *b)
+{
+ const char *from;
+
+ if (!skip_prefix(command_buf.buf, "from ", &from))
+ return 0;
+
+ return parse_objectish(b, from);
+}
+
+static int parse_objectish_with_prefix(struct branch *b, const char *prefix)
+{
+ const char *base;
+
+ if (!skip_prefix(command_buf.buf, prefix, &base))
+ return 0;
+
+ return parse_objectish(b, base);
+}
+
static struct hash_list *parse_merge(unsigned int *count)
{
struct hash_list *list = NULL, **tail = &list, *n;
@@ -2595,7 +2609,7 @@ static void parse_new_commit(const char *arg)
struct branch *b;
char *author = NULL;
char *committer = NULL;
- const char *encoding = NULL;
+ char *encoding = NULL;
struct hash_list *merge_list = NULL;
unsigned int merge_count;
unsigned char prev_fanout, new_fanout;
@@ -2618,8 +2632,10 @@ static void parse_new_commit(const char *arg)
}
if (!committer)
die("Expected committer but didn't get one");
- if (skip_prefix(command_buf.buf, "encoding ", &encoding))
+ if (skip_prefix(command_buf.buf, "encoding ", &v)) {
+ encoding = xstrdup(v);
read_next_command();
+ }
parse_data(&msg, 0, NULL);
read_next_command();
parse_from(b);
@@ -2693,6 +2709,7 @@ static void parse_new_commit(const char *arg)
strbuf_addbuf(&new_data, &msg);
free(author);
free(committer);
+ free(encoding);
if (!store_object(OBJ_COMMIT, &new_data, NULL, &b->oid, next_mark))
b->pack_id = pack_id;
@@ -2720,6 +2737,7 @@ static void parse_new_tag(const char *arg)
first_tag = t;
last_tag = t;
read_next_command();
+ parse_mark();
/* from ... */
if (!skip_prefix(command_buf.buf, "from ", &from))
@@ -2776,7 +2794,7 @@ static void parse_new_tag(const char *arg)
strbuf_addbuf(&new_data, &msg);
free(tagger);
- if (store_object(OBJ_TAG, &new_data, NULL, &t->oid, 0))
+ if (store_object(OBJ_TAG, &new_data, NULL, &t->oid, next_mark))
t->pack_id = MAX_PACK_ID;
else
t->pack_id = pack_id;
@@ -2785,6 +2803,7 @@ static void parse_new_tag(const char *arg)
static void parse_reset_branch(const char *arg)
{
struct branch *b;
+ const char *tag_name;
b = lookup_branch(arg);
if (b) {
@@ -2800,6 +2819,32 @@ static void parse_reset_branch(const char *arg)
b = new_branch(arg);
read_next_command();
parse_from(b);
+ if (b->delete && skip_prefix(b->name, "refs/tags/", &tag_name)) {
+ /*
+ * Elsewhere, we call dump_branches() before dump_tags(),
+ * and dump_branches() will handle ref deletions first, so
+ * in order to make sure the deletion actually takes effect,
+ * we need to remove the tag from our list of tags to update.
+ *
+ * NEEDSWORK: replace list of tags with hashmap for faster
+ * deletion?
+ */
+ struct tag *t, *prev = NULL;
+ for (t = first_tag; t; t = t->next_tag) {
+ if (!strcmp(t->name, tag_name))
+ break;
+ prev = t;
+ }
+ if (t) {
+ if (prev)
+ prev->next_tag = t->next_tag;
+ else
+ first_tag = t->next_tag;
+ if (!t->next_tag)
+ last_tag = prev;
+ /* There is no mem_pool_free(t) function to call. */
+ }
+ }
if (command_buf.len > 0)
unread_command_buf = 1;
}
@@ -3066,6 +3111,28 @@ static void parse_progress(void)
skip_optional_lf();
}
+static void parse_alias(void)
+{
+ struct object_entry *e;
+ struct branch b;
+
+ skip_optional_lf();
+ read_next_command();
+
+ /* mark ... */
+ parse_mark();
+ if (!next_mark)
+ die(_("Expected 'mark' command, got %s"), command_buf.buf);
+
+ /* to ... */
+ memset(&b, 0, sizeof(b));
+ if (!parse_objectish_with_prefix(&b, "to "))
+ die(_("Expected 'to' command, got %s"), command_buf.buf);
+ e = find_object(&b.oid);
+ assert(e);
+ insert_mark(next_mark, e);
+}
+
static char* make_fast_import_path(const char *path)
{
if (!relative_marks_paths || is_absolute_path(path))
@@ -3203,6 +3270,8 @@ static int parse_one_feature(const char *feature, int from_stream)
} else if (skip_prefix(feature, "export-marks=", &arg)) {
check_unsafe_feature(feature, from_stream);
option_export_marks(arg);
+ } else if (!strcmp(feature, "alias")) {
+ ; /* Don't die - this feature is supported */
} else if (!strcmp(feature, "get-mark")) {
; /* Don't die - this feature is supported */
} else if (!strcmp(feature, "cat-blob")) {
@@ -3373,6 +3442,8 @@ int cmd_main(int argc, const char **argv)
parse_checkpoint();
else if (!strcmp("done", command_buf.buf))
break;
+ else if (!strcmp("alias", command_buf.buf))
+ parse_alias();
else if (starts_with(command_buf.buf, "progress "))
parse_progress();
else if (skip_prefix(command_buf.buf, "feature ", &v))
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 02:38:19 +0000