#include "refs.h"
static const char show_branch_usage[] =
-"git-show-branch [--all] [--heads] [--tags] [--more=count] [<refs>...]";
+"git-show-branch [--all] [--heads] [--tags] [--more=count | --list | --independent | --merge-base ] [<refs>...]";
#define UNINTERESTING 01
nth++;
if (p->object.util)
continue;
- sprintf(newname, "%s^%d", n->head_name, nth);
+ switch (n->generation) {
+ case 0:
+ sprintf(newname, "%s^%d",
+ n->head_name, nth);
+ break;
+ case 1:
+ sprintf(newname, "%s^^%d",
+ n->head_name, nth);
+ break;
+ default:
+ sprintf(newname, "%s~%d^%d",
+ n->head_name, n->generation,
+ nth);
+ }
name_commit(p, strdup(newname), 0);
i++;
name_first_parent_chain(p);
{
char pretty[128], *cp;
struct commit_name *name = commit->object.util;
- pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0,
- pretty, sizeof(pretty));
+ if (commit->object.parsed)
+ pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0,
+ pretty, sizeof(pretty));
+ else
+ strcpy(pretty, "(unavailable)");
if (!strncmp(pretty, "[PATCH] ", 8))
cp = pretty + 8;
else
{
int all_mask = ((1u << (REV_SHIFT + num_rev)) - 1);
int all_revs = all_mask & ~((1u << REV_SHIFT) - 1);
+ int exit_status = 1;
while (seen) {
struct commit *commit = pop_one_commit(&seen);
if (!(flags & UNINTERESTING) &&
((flags & all_revs) == all_revs)) {
puts(sha1_to_hex(commit->object.sha1));
- return 0;
+ exit_status = 0;
+ commit->object.flags |= UNINTERESTING;
}
}
- return 1;
+ return exit_status;
+}
+
+static int show_independent(struct commit **rev,
+ int num_rev,
+ char **ref_name,
+ unsigned int *rev_mask)
+{
+ int i;
+
+ for (i = 0; i < num_rev; i++) {
+ struct commit *commit = rev[i];
+ unsigned int flag = rev_mask[i];
+
+ if (commit->object.flags == flag)
+ puts(sha1_to_hex(commit->object.sha1));
+ commit->object.flags |= UNINTERESTING;
+ }
+ return 0;
}
int main(int ac, char **av)
{
struct commit *rev[MAX_REVS], *commit;
struct commit_list *list = NULL, *seen = NULL;
+ unsigned int rev_mask[MAX_REVS];
int num_rev, i, extra = 0;
int all_heads = 0, all_tags = 0;
int all_mask, all_revs, shown_merge_point;
char head_path[128];
+ const char *head_path_p;
int head_path_len;
unsigned char head_sha1[20];
int merge_base = 0;
+ int independent = 0;
char **label;
+ setup_git_directory();
+
while (1 < ac && av[1][0] == '-') {
char *arg = av[1];
if (!strcmp(arg, "--all"))
all_tags = 1;
else if (!strcmp(arg, "--more"))
extra = 1;
- else if (!strncmp(arg, "--more=", 7)) {
+ else if (!strcmp(arg, "--list"))
+ extra = -1;
+ else if (!strncmp(arg, "--more=", 7))
extra = atoi(arg + 7);
- if (extra < 0)
- usage(show_branch_usage);
- }
else if (!strcmp(arg, "--merge-base"))
merge_base = 1;
+ else if (!strcmp(arg, "--independent"))
+ independent = 1;
else
usage(show_branch_usage);
ac--; av++;
}
ac--; av++;
+ /* Only one of these is allowed */
+ if (1 < independent + merge_base + (extra != 0))
+ usage(show_branch_usage);
+
if (all_heads + all_tags)
snarf_refs(all_heads, all_tags);
for (num_rev = 0; ref_name[num_rev]; num_rev++) {
unsigned char revkey[20];
+ unsigned int flag = 1u << (num_rev + REV_SHIFT);
if (MAX_REVS <= num_rev)
die("cannot handle more than %d revs.", MAX_REVS);
* and so on. REV_SHIFT bits from bit 0 are used for
* internal bookkeeping.
*/
- commit->object.flags |= 1u << (num_rev + REV_SHIFT);
- insert_by_date(commit, &list);
+ commit->object.flags |= flag;
+ if (commit->object.flags == flag)
+ insert_by_date(commit, &list);
rev[num_rev] = commit;
}
- join_revs(&list, &seen, num_rev, extra);
+ for (i = 0; i < num_rev; i++)
+ rev_mask[i] = rev[i]->object.flags;
+
+ if (0 <= extra)
+ join_revs(&list, &seen, num_rev, extra);
- head_path_len = readlink(".git/HEAD", head_path, sizeof(head_path)-1);
- if ((head_path_len < 0) || get_sha1("HEAD", head_sha1))
+ head_path_p = resolve_ref(git_path("HEAD"), head_sha1, 1);
+ if (head_path_p) {
+ head_path_len = strlen(head_path_p);
+ memcpy(head_path, head_path_p, head_path_len + 1);
+ }
+ else {
+ head_path_len = 0;
head_path[0] = 0;
- else
- head_path[head_path_len] = 0;
+ }
if (merge_base)
return show_merge_base(seen, num_rev);
- /* Show list */
- if (1 < num_rev) {
+ if (independent)
+ return show_independent(rev, num_rev, ref_name, rev_mask);
+
+ /* Show list; --more=-1 means list-only */
+ if (1 < num_rev || extra < 0) {
for (i = 0; i < num_rev; i++) {
int j;
int is_head = rev_is_head(head_path,
ref_name[i],
head_sha1,
rev[i]->object.sha1);
- for (j = 0; j < i; j++)
- putchar(' ');
- printf("%c [%s] ", is_head ? '*' : '!', ref_name[i]);
+ if (extra < 0)
+ printf("%c [%s] ",
+ is_head ? '*' : ' ', ref_name[i]);
+ else {
+ for (j = 0; j < i; j++)
+ putchar(' ');
+ printf("%c [%s] ",
+ is_head ? '*' : '!', ref_name[i]);
+ }
show_one_commit(rev[i]);
}
- for (i = 0; i < num_rev; i++)
- putchar('-');
- putchar('\n');
+ if (0 <= extra) {
+ for (i = 0; i < num_rev; i++)
+ putchar('-');
+ putchar('\n');
+ }
}
+ if (extra < 0)
+ exit(0);
/* Sort topologically */
sort_in_topological_order(&seen);