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builtin/describe.c: factor out describe_commit 

Factor out describing commits into its own function `describe_commit`,
which will put any output to stdout into a strbuf, to be printed
afterwards.

As the next patch will teach Git to describe blobs using a commit and path,
this refactor will make it easy to reuse the code describing commits.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller 2017-11-15 18:00:38 -08:00 коммит произвёл Junio C Hamano
Родитель cdaed0cf02
Коммит 4dbc59a4cc
1 изменённых файлов: 37 добавлений и 26 удалений
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63
builtin/describe.c
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@ -256,7 +256,7 @@ static unsigned long finish_depth_computation(
return seen_commits;
}
static void display_name(struct commit_name *n)
static void append_name(struct commit_name *n, struct strbuf *dst)
{
if (n->prio == 2 && !n->tag) {
n->tag = lookup_tag(&n->oid);
@ -272,19 +272,18 @@ static void display_name(struct commit_name *n)
}
if (n->tag)
printf("%s", n->tag->tag);
strbuf_addstr(dst, n->tag->tag);
else
printf("%s", n->path);
strbuf_addstr(dst, n->path);
}
static void show_suffix(int depth, const struct object_id *oid)
static void append_suffix(int depth, const struct object_id *oid, struct strbuf *dst)
{
printf("-%d-g%s", depth, find_unique_abbrev(oid->hash, abbrev));
strbuf_addf(dst, "-%d-g%s", depth, find_unique_abbrev(oid->hash, abbrev));
}
static void describe(const char *arg, int last_one)
static void describe_commit(struct object_id *oid, struct strbuf *dst)
{
struct object_id oid;
struct commit *cmit, *gave_up_on = NULL;
struct commit_list *list;
struct commit_name *n;
@ -293,26 +292,18 @@ static void describe(const char *arg, int last_one)
unsigned long seen_commits = 0;
unsigned int unannotated_cnt = 0;
if (debug)
fprintf(stderr, _("describe %s\n"), arg);
if (get_oid(arg, &oid))
die(_("Not a valid object name %s"), arg);
cmit = lookup_commit_reference(&oid);
if (!cmit)
die(_("%s is not a valid '%s' object"), arg, commit_type);
cmit = lookup_commit_reference(oid);
n = find_commit_name(&cmit->object.oid);
if (n && (tags || all || n->prio == 2)) {
/*
* Exact match to an existing ref.
*/
display_name(n);
append_name(n, dst);
if (longformat)
show_suffix(0, n->tag ? &n->tag->tagged->oid : &oid);
append_suffix(0, n->tag ? &n->tag->tagged->oid : oid, dst);
if (suffix)
printf("%s", suffix);
printf("\n");
strbuf_addstr(dst, suffix);
return;
}
@ -386,10 +377,9 @@ static void describe(const char *arg, int last_one)
if (!match_cnt) {
struct object_id *cmit_oid = &cmit->object.oid;
if (always) {
printf("%s", find_unique_abbrev(cmit_oid->hash, abbrev));
strbuf_addstr(dst, find_unique_abbrev(cmit_oid->hash, abbrev));
if (suffix)
printf("%s", suffix);
printf("\n");
strbuf_addstr(dst, suffix);
return;
}
if (unannotated_cnt)
@ -437,15 +427,36 @@ static void describe(const char *arg, int last_one)
}
}
display_name(all_matches[0].name);
append_name(all_matches[0].name, dst);
if (abbrev)
show_suffix(all_matches[0].depth, &cmit->object.oid);
append_suffix(all_matches[0].depth, &cmit->object.oid, dst);
if (suffix)
printf("%s", suffix);
printf("\n");
strbuf_addstr(dst, suffix);
}
static void describe(const char *arg, int last_one)
{
struct object_id oid;
struct commit *cmit;
struct strbuf sb = STRBUF_INIT;
if (debug)
fprintf(stderr, _("describe %s\n"), arg);
if (get_oid(arg, &oid))
die(_("Not a valid object name %s"), arg);
cmit = lookup_commit_reference(&oid);
if (!cmit)
die(_("%s is not a valid '%s' object"), arg, commit_type);
describe_commit(&oid, &sb);
puts(sb.buf);
if (!last_one)
clear_commit_marks(cmit, -1);
strbuf_release(&sb);
}
int cmd_describe(int argc, const char **argv, const char *prefix)