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move setup_alternate_shallow and write_shallow_commits to shallow.c

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2013-08-16 16:52:02 +07:00
committed by Junio C Hamano
parent 2c2b6646c2
commit 3125fe528b
3 changed files with 58 additions and 52 deletions
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54
shallow.c
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@ -1,6 +1,7 @@
#include "cache.h"
#include "commit.h"
#include "tag.h"
#include "pkt-line.h"
static int is_shallow = -1;
static struct stat shallow_stat;
@ -141,3 +142,56 @@ void check_shallow_file_for_update(void)
)
die("shallow file was changed during fetch");
}
struct write_shallow_data {
struct strbuf *out;
int use_pack_protocol;
int count;
};
static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
{
struct write_shallow_data *data = cb_data;
const char *hex = sha1_to_hex(graft->sha1);
data->count++;
if (data->use_pack_protocol)
packet_buf_write(data->out, "shallow %s", hex);
else {
strbuf_addstr(data->out, hex);
strbuf_addch(data->out, '\n');
}
return 0;
}
int write_shallow_commits(struct strbuf *out, int use_pack_protocol)
{
struct write_shallow_data data;
data.out = out;
data.use_pack_protocol = use_pack_protocol;
data.count = 0;
for_each_commit_graft(write_one_shallow, &data);
return data.count;
}
void setup_alternate_shallow(struct lock_file *shallow_lock,
const char **alternate_shallow_file)
{
struct strbuf sb = STRBUF_INIT;
int fd;
check_shallow_file_for_update();
fd = hold_lock_file_for_update(shallow_lock, git_path("shallow"),
LOCK_DIE_ON_ERROR);
if (write_shallow_commits(&sb, 0)) {
if (write_in_full(fd, sb.buf, sb.len) != sb.len)
die_errno("failed to write to %s",
shallow_lock->filename);
*alternate_shallow_file = shallow_lock->filename;
} else
/*
* is_repository_shallow() sees empty string as "no
* shallow file".
*/
*alternate_shallow_file = "";
strbuf_release(&sb);
}