FilesExpand file tree

 master

/

update-ref.c

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

58 lines (52 loc) · 1.65 KB

 master

/

update-ref.c

Copy path

Top

File metadata and controls

• Code
• Blame

58 lines (52 loc) · 1.65 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

#include "cache.h"

#include "refs.h"

#include "builtin.h"

#include "parse-options.h"

static const char * const git_update_ref_usage[] = {

"git update-ref [options] -d <refname> [<oldval>]",

"git update-ref [options] <refname> <newval> [<oldval>]",

NULL

};

int cmd_update_ref(int argc, const char **argv, const char *prefix)

{

const char *refname, *oldval, *msg=NULL;

unsigned char sha1[20], oldsha1[20];

int delete = 0, no_deref = 0, flags = 0;

struct option options[] = {

OPT_STRING( 'm', NULL, &msg, "reason", "reason of the update"),

OPT_BOOLEAN('d', NULL, &delete, "deletes the reference"),

OPT_BOOLEAN( 0 , "no-deref", &no_deref,

"update <refname> not the one it points to"),

OPT_END(),

};

git_config(git_default_config, NULL);

argc = parse_options(argc, argv, prefix, options, git_update_ref_usage,

0);

if (msg && !*msg)

die("Refusing to perform update with empty message.");

if (delete) {

if (argc < 1 || argc > 2)

usage_with_options(git_update_ref_usage, options);

refname = argv[0];

oldval = argv[1];

} else {

const char *value;

if (argc < 2 || argc > 3)

usage_with_options(git_update_ref_usage, options);

refname = argv[0];

value = argv[1];

oldval = argv[2];

if (get_sha1(value, sha1))

die("%s: not a valid SHA1", value);

}

hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */

if (oldval && *oldval && get_sha1(oldval, oldsha1))

die("%s: not a valid old SHA1", oldval);

if (no_deref)

flags = REF_NODEREF;

if (delete)

return delete_ref(refname, oldval ? oldsha1 : NULL, flags);

else

return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,

flags, DIE_ON_ERR);

}