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for-each-ref: refactor refname handling

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This code handles some special magic like *-deref and the
:short formatting specifier. The next patch will add another
field which outputs a ref and wants to use the same code.

This patch splits the "which ref are we outputting" from the
actual formatting. There should be no behavioral change.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2009-04-07 03:06:51 -04:00 committed by Junio C Hamano
parent 3d4ecc0e23
commit 8db9a4b85d
1 changed files with 25 additions and 20 deletions
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45
builtin-for-each-ref.c
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@ -672,32 +672,37 @@ static void populate_value(struct refinfo *ref)
const char *name = used_atom[i];
struct atom_value *v = &ref->value[i];
int deref = 0;
const char *refname;
const char *formatp;
if (*name == '*') {
deref = 1;
name++;
}
if (!prefixcmp(name, "refname")) {
const char *formatp = strchr(name, ':');
const char *refname = ref->refname;
/* look for "short" refname format */
if (formatp) {
formatp++;
if (!strcmp(formatp, "short"))
refname = get_short_ref(ref->refname);
else
die("unknown refname format %s",
formatp);
}
if (!prefixcmp(name, "refname"))
refname = ref->refname;
else
continue;
if (!deref)
v->s = refname;
else {
int len = strlen(refname);
char *s = xmalloc(len + 4);
sprintf(s, "%s^{}", refname);
v->s = s;
}
formatp = strchr(name, ':');
/* look for "short" refname format */
if (formatp) {
formatp++;
if (!strcmp(formatp, "short"))
refname = get_short_ref(refname);
else
die("unknown %.*s format %s",
(int)(formatp - name), name, formatp);
}
if (!deref)
v->s = refname;
else {
int len = strlen(refname);
char *s = xmalloc(len + 4);
sprintf(s, "%s^{}", refname);
v->s = s;
}
}