stream ::= cmd*;
cmd ::= new_blob
- | new_branch
| new_commit
| new_tag
;
file_content;
file_content ::= data;
- new_branch ::= 'branch' sp ref_str lf
- ('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
- lf;
-
new_commit ::= 'commit' sp ref_str lf
- mark?
- ('author' sp name '<' email '>' ts tz lf)?
- 'committer' sp name '<' email '>' ts tz lf
- commit_msg
+ mark?
+ ('author' sp name '<' email '>' ts tz lf)?
+ 'committer' sp name '<' email '>' ts tz lf
+ commit_msg
+ ('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
file_change*
lf;
commit_msg ::= data;
static struct object_entry_pool *blocks;
static struct object_entry *object_table[1 << 16];
static struct mark_set *marks;
+static const char* mark_file;
/* Our last blob */
static struct last_object last_blob;
}
r = p->next_free;
+ /* round out to a pointer alignment */
+ if (len & (sizeof(void*) - 1))
+ len += sizeof(void*) - (len & (sizeof(void*) - 1));
p->next_free += len;
return r;
}
if (!avail_tree_entry) {
unsigned int n = tree_entry_alloc;
+ total_allocd += n * sizeof(struct tree_entry);
avail_tree_entry = e = xmalloc(n * sizeof(struct tree_entry));
while (n--) {
*((void**)e) = e + 1;
} else {
char type[20];
buf = read_sha1_file(root->sha1, type, &size);
- if (!buf || !strcmp(type, tree_type))
+ if (!buf || strcmp(type, tree_type))
die("Can't load tree %s", sha1_to_hex(root->sha1));
}
}
}
+static void dump_marks_helper(FILE *f,
+ unsigned long base,
+ struct mark_set *m)
+{
+ int k;
+ if (m->shift) {
+ for (k = 0; k < 1024; k++) {
+ if (m->data.sets[k])
+ dump_marks_helper(f, (base + k) << m->shift,
+ m->data.sets[k]);
+ }
+ } else {
+ for (k = 0; k < 1024; k++) {
+ if (m->data.marked[k])
+ fprintf(f, "%lu,%s\n", base + k,
+ sha1_to_hex(m->data.marked[k]->sha1));
+ }
+ }
+}
+
+static void dump_marks()
+{
+ if (mark_file)
+ {
+ FILE *f = fopen(mark_file, "w");
+ dump_marks_helper(f, 0, marks);
+ fclose(f);
+ }
+}
+
static void read_next_command()
{
read_line(&command_buf, stdin, '\n');
free(p_uq);
}
+static void cmd_from(struct branch *b)
+{
+ const char *from, *endp;
+ char *str_uq;
+ struct branch *s;
+
+ if (strncmp("from ", command_buf.buf, 5))
+ return;
+
+ if (b->last_commit)
+ die("Can't reinitailize branch %s", b->name);
+
+ from = strchr(command_buf.buf, ' ') + 1;
+ str_uq = unquote_c_style(from, &endp);
+ if (str_uq) {
+ if (*endp)
+ die("Garbage after string in: %s", command_buf.buf);
+ from = str_uq;
+ }
+
+ s = lookup_branch(from);
+ if (b == s)
+ die("Can't create a branch from itself: %s", b->name);
+ else if (s) {
+ memcpy(b->sha1, s->sha1, 20);
+ memcpy(b->branch_tree.sha1, s->branch_tree.sha1, 20);
+ } else if (*from == ':') {
+ unsigned long idnum = strtoul(from + 1, NULL, 10);
+ struct object_entry *oe = find_mark(idnum);
+ unsigned long size;
+ char *buf;
+ if (oe->type != OBJ_COMMIT)
+ die("Mark :%lu not a commit", idnum);
+ memcpy(b->sha1, oe->sha1, 20);
+ buf = unpack_entry(oe->offset, &size);
+ if (!buf || size < 46)
+ die("Not a valid commit: %s", from);
+ if (memcmp("tree ", buf, 5)
+ || get_sha1_hex(buf + 5, b->branch_tree.sha1))
+ die("The commit %s is corrupt", sha1_to_hex(b->sha1));
+ free(buf);
+ } else if (!get_sha1(from, b->sha1)) {
+ if (!memcmp(b->sha1, null_sha1, 20))
+ memcpy(b->branch_tree.sha1, null_sha1, 20);
+ else {
+ unsigned long size;
+ char *buf;
+
+ buf = read_object_with_reference(b->sha1,
+ type_names[OBJ_COMMIT], &size, b->sha1);
+ if (!buf || size < 46)
+ die("Not a valid commit: %s", from);
+ if (memcmp("tree ", buf, 5)
+ || get_sha1_hex(buf + 5, b->branch_tree.sha1))
+ die("The commit %s is corrupt", sha1_to_hex(b->sha1));
+ free(buf);
+ }
+ } else
+ die("Invalid ref name or SHA1 expression: %s", from);
+
+ read_next_command();
+}
+
static void cmd_new_commit()
{
struct branch *b;
}
b = lookup_branch(sp);
if (!b)
- die("Branch not declared: %s", sp);
+ b = new_branch(sp);
if (str_uq)
free(str_uq);
if (!committer)
die("Expected committer but didn't get one");
msg = cmd_data(&msglen);
+ read_next_command();
+ cmd_from(b);
/* ensure the branch is active/loaded */
if (!b->branch_tree.tree || !max_active_branches) {
/* file_change* */
for (;;) {
- read_next_command();
if (1 == command_buf.len)
break;
else if (!strncmp("M ", command_buf.buf, 2))
file_change_d(b);
else
die("Unsupported file_change: %s", command_buf.buf);
+ read_next_command();
}
/* build the tree and the commit */
b->last_commit = object_count_by_type[OBJ_COMMIT];
}
-static void cmd_new_branch()
-{
- struct branch *b;
- char *str_uq;
- const char *endp;
- char *sp;
-
- /* Obtain the new branch name from the rest of our command */
- sp = strchr(command_buf.buf, ' ') + 1;
- str_uq = unquote_c_style(sp, &endp);
- if (str_uq) {
- if (*endp)
- die("Garbage after ref in: %s", command_buf.buf);
- sp = str_uq;
- }
- b = new_branch(sp);
- if (str_uq)
- free(str_uq);
- read_next_command();
-
- /* from ... */
- if (!strncmp("from ", command_buf.buf, 5)) {
- const char *from;
- struct branch *s;
-
- from = strchr(command_buf.buf, ' ') + 1;
- str_uq = unquote_c_style(from, &endp);
- if (str_uq) {
- if (*endp)
- die("Garbage after string in: %s", command_buf.buf);
- from = str_uq;
- }
-
- s = lookup_branch(from);
- if (b == s)
- die("Can't create a branch from itself: %s", b->name);
- else if (s) {
- memcpy(b->sha1, s->sha1, 20);
- memcpy(b->branch_tree.sha1, s->branch_tree.sha1, 20);
- } else if (*from == ':') {
- unsigned long idnum = strtoul(from + 1, NULL, 10);
- struct object_entry *oe = find_mark(idnum);
- unsigned long size;
- char *buf;
- if (oe->type != OBJ_COMMIT)
- die("Mark :%lu not a commit", idnum);
- memcpy(b->sha1, oe->sha1, 20);
- buf = unpack_entry(oe->offset, &size);
- if (!buf || size < 46)
- die("Not a valid commit: %s", from);
- if (memcmp("tree ", buf, 5)
- || get_sha1_hex(buf + 5, b->branch_tree.sha1))
- die("The commit %s is corrupt", sha1_to_hex(b->sha1));
- free(buf);
- } else if (!get_sha1(from, b->sha1)) {
- if (!memcmp(b->sha1, null_sha1, 20))
- memcpy(b->branch_tree.sha1, null_sha1, 20);
- else {
- unsigned long size;
- char *buf;
-
- buf = read_object_with_reference(b->sha1,
- type_names[OBJ_COMMIT], &size, b->sha1);
- if (!buf || size < 46)
- die("Not a valid commit: %s", from);
- if (memcmp("tree ", buf, 5)
- || get_sha1_hex(buf + 5, b->branch_tree.sha1))
- die("The commit %s is corrupt", sha1_to_hex(b->sha1));
- free(buf);
- }
- } else
- die("Invalid ref name or SHA1 expression: %s", from);
-
- if (str_uq)
- free(str_uq);
- read_next_command();
- } else {
- memcpy(b->sha1, null_sha1, 20);
- memcpy(b->branch_tree.sha1, null_sha1, 20);
- }
-
- if (command_buf.eof || command_buf.len > 1)
- die("An lf did not terminate the branch command as expected.");
-}
-
static void cmd_new_tag()
{
char *str_uq;
}
static const char fast_import_usage[] =
-"git-fast-import [--objects=n] [--depth=n] [--active-branches=n] temp.pack";
+"git-fast-import [--objects=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file] temp.pack";
int main(int argc, const char **argv)
{
max_depth = strtoul(a + 8, NULL, 0);
else if (!strncmp(a, "--active-branches=", 18))
max_active_branches = strtoul(a + 18, NULL, 0);
+ else if (!strncmp(a, "--export-marks=", 15))
+ mark_file = a + 15;
else
die("unknown option %s", a);
}
break;
else if (!strcmp("blob", command_buf.buf))
cmd_new_blob();
- else if (!strncmp("branch ", command_buf.buf, 7))
- cmd_new_branch();
else if (!strncmp("commit ", command_buf.buf, 7))
cmd_new_commit();
else if (!strncmp("tag ", command_buf.buf, 4))
write_index(idx_name);
dump_branches();
dump_tags();
+ dump_marks();
fprintf(stderr, "%s statistics:\n", argv[0]);
fprintf(stderr, "---------------------------------------------------\n");