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refs: add ref_type function 

Add a function ref_type, which categorizes refs as per-worktree,
pseudoref, or normal ref.

Later, we will use this in refs.c to treat pseudorefs specially.
Alternate ref backends may use it to treat both pseudorefs and
per-worktree refs differently.

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Turner 2015-07-31 02:06:18 -04:00 committed by Junio C Hamano
parent 2036cb98d0
commit 266b18273a
2 changed files with 34 additions and 0 deletions
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26
refs.c
View File

@ -2821,6 +2821,32 @@ static int delete_ref_loose(struct ref_lock *lock, int flag, struct strbuf *err)
return 0;
}
static int is_per_worktree_ref(const char *refname)
{
return !strcmp(refname, "HEAD");
}
static int is_pseudoref_syntax(const char *refname)
{
const char *c;
for (c = refname; *c; c++) {
if (!isupper(*c) && *c != '-' && *c != '_')
return 0;
}
return 1;
}
enum ref_type ref_type(const char *refname)
{
if (is_per_worktree_ref(refname))
return REF_TYPE_PER_WORKTREE;
if (is_pseudoref_syntax(refname))
return REF_TYPE_PSEUDOREF;
return REF_TYPE_NORMAL;
}
int delete_ref(const char *refname, const unsigned char *sha1, unsigned int flags)
{
struct ref_transaction *transaction;

8
refs.h
View File

@ -380,6 +380,14 @@ int update_ref(const char *msg, const char *refname,
extern int parse_hide_refs_config(const char *var, const char *value, const char *);
extern int ref_is_hidden(const char *);
enum ref_type {
REF_TYPE_PER_WORKTREE,
REF_TYPE_PSEUDOREF,
REF_TYPE_NORMAL,
};
enum ref_type ref_type(const char *refname);
enum expire_reflog_flags {
EXPIRE_REFLOGS_DRY_RUN = 1 << 0,
EXPIRE_REFLOGS_UPDATE_REF = 1 << 1,