Remove show_detached() and make detached HEAD to be rolled into
regular ref_list by adding REF_DETACHED_HEAD as a kind of branch and
supporting the same in append_ref(). This eliminates the need for an
extra function and helps in easier porting of branch.c to use
ref-filter APIs.
Before show_detached() used to check if the HEAD branch satisfies the
'--contains' option, now that is taken care by append_ref().
Based-on-patch-by: Jeff King <peff@xxxxxxxx>
Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored-by: Matthieu Moy <matthieu.moy@xxxxxxxxxxxxxxx>
Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx>
---
builtin/branch.c | 68 +++++++++++++++++++++++++++++++++-----------------------
1 file changed, 40 insertions(+), 28 deletions(-)
diff --git a/builtin/branch.c b/builtin/branch.c
index 65f6d0d..81815c9 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -30,6 +30,7 @@ static const char * const builtin_branch_usage[] = {
#define REF_LOCAL_BRANCH 0x01
#define REF_REMOTE_BRANCH 0x02
+#define REF_DETACHED_HEAD 0x04
static const char *head;
static unsigned char head_sha1[20];
@@ -352,8 +353,12 @@ static int append_ref(const char *refname, const struct object_id *oid, int flag
break;
}
}
- if (ARRAY_SIZE(ref_kind) <= i)
- return 0;
+ if (ARRAY_SIZE(ref_kind) <= i) {
+ if (!strcmp(refname, "HEAD"))
+ kind = REF_DETACHED_HEAD;
+ else
+ return 0;
+ }
/* Don't add types the caller doesn't want */
if ((kind & ref_list->kinds) == 0)
@@ -535,6 +540,7 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
int color;
struct strbuf out = STRBUF_INIT, name = STRBUF_INIT;
const char *prefix = "";
+ const char *desc = item->name;
if (item->ignore)
return;
@@ -547,6 +553,10 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
color = BRANCH_COLOR_REMOTE;
prefix = remote_prefix;
break;
+ case REF_DETACHED_HEAD:
+ color = BRANCH_COLOR_CURRENT;
+ desc = get_head_description();
+ break;
default:
color = BRANCH_COLOR_PLAIN;
break;
@@ -558,7 +568,7 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
color = BRANCH_COLOR_CURRENT;
}
- strbuf_addf(&name, "%s%s", prefix, item->name);
+ strbuf_addf(&name, "%s%s", prefix, desc);
if (verbose) {
int utf8_compensation = strlen(name.buf) - utf8_strwidth(name.buf);
strbuf_addf(&out, "%c %s%-*s%s", c, branch_get_color(color),
@@ -581,6 +591,8 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
}
strbuf_release(&name);
strbuf_release(&out);
+ if (item->kind == REF_DETACHED_HEAD)
+ free((void *)desc);
}
static int calc_maxwidth(struct ref_list *refs, int remote_bonus)
@@ -600,25 +612,9 @@ static int calc_maxwidth(struct ref_list *refs, int remote_bonus)
return max;
}
-static void show_detached(struct ref_list *ref_list, int maxwidth)
-{
- struct commit *head_commit = lookup_commit_reference_gently(head_sha1, 1);
-
- if (head_commit && is_descendant_of(head_commit, ref_list->with_commit)) {
- struct ref_item item;
- item.name = get_head_description();
- item.kind = REF_LOCAL_BRANCH;
- item.dest = NULL;
- item.commit = head_commit;
- item.ignore = 0;
- print_ref_item(&item, maxwidth, ref_list->verbose, ref_list->abbrev, 1, "");
- free(item.name);
- }
-}
-
static int print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit, const char **pattern)
{
- int i;
+ int i, index;
struct append_ref_cb cb;
struct ref_list ref_list;
int maxwidth = 0;
@@ -642,7 +638,14 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru
cb.ref_list = &ref_list;
cb.pattern = pattern;
cb.ret = 0;
+ /*
+ * First we obtain all regular branch refs and then if the
+ * HEAD is detached then we insert that ref to the end of the
+ * ref_fist so that it can be printed first.
+ */
for_each_rawref(append_ref, &cb);
+ if (detached)
+ head_ref(append_ref, &cb);
/*
* The following implementation is currently duplicated in ref-filter. It
* will eventually be removed when we port branch.c to use ref-filter APIs.
@@ -678,15 +681,20 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru
if (verbose)
maxwidth = calc_maxwidth(&ref_list, strlen(remote_prefix));
- qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
+ index = ref_list.index;
+
+ /* Print detached HEAD before sorting and printing the rest */
+ if (detached && (ref_list.list[index - 1].kind == REF_DETACHED_HEAD) &&
+ !strcmp(ref_list.list[index - 1].name, head)) {
+ print_ref_item(&ref_list.list[index - 1], maxwidth, verbose, abbrev,
+ 1, remote_prefix);
+ index -= 1;
+ }
- detached = (detached && (kinds & REF_LOCAL_BRANCH));
- if (detached && match_patterns(pattern, "HEAD"))
- show_detached(&ref_list, maxwidth);
+ qsort(ref_list.list, index, sizeof(struct ref_item), ref_cmp);
- for (i = 0; i < ref_list.index; i++) {
- int current = !detached &&
- (ref_list.list[i].kind == REF_LOCAL_BRANCH) &&
+ for (i = 0; i < index; i++) {
+ int current = !detached && (ref_list.list[i].kind == REF_LOCAL_BRANCH) &&
!strcmp(ref_list.list[i].name, head);
print_ref_item(&ref_list.list[i], maxwidth, verbose,
abbrev, current, remote_prefix);
@@ -913,7 +921,11 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
die(_("branch name required"));
return delete_branches(argc, argv, delete > 1, kinds, quiet);
} else if (list) {
- int ret = print_ref_list(kinds, detached, verbose, abbrev,
+ int ret;
+ /* git branch --local also shows HEAD when it is detached */
+ if (kinds & REF_LOCAL_BRANCH)
+ kinds |= REF_DETACHED_HEAD;
+ ret = print_ref_list(kinds, detached, verbose, abbrev,
with_commit, argv);
print_columns(&output, colopts, NULL);
string_list_clear(&output, 0);
--
2.5.0
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