Finish removing die() calls from ref-filter formatting logic,
so that it could be used by other commands.
Change the signature of get_ref_atom_value() and underlying functions
by adding return value and strbuf parameter for error message.
Return value equals 0 upon success and -1 upon failure.
Upon failure, error message is appended to the strbuf.
Signed-off-by: Olga Telezhnaia <olyatelezhn...@gmail.com>
---
ref-filter.c | 54 ++++++++++++++++++++++++++++++------------------------
1 file changed, 30 insertions(+), 24 deletions(-)
diff --git a/ref-filter.c b/ref-filter.c
index 3f85ef64267d9..3bc65e49358ee 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1427,28 +1427,30 @@ static const char *get_refname(struct used_atom *atom,
struct ref_array_item *re
return show_ref(&atom->u.refname, ref->refname);
}
-static void get_object(struct ref_array_item *ref, const struct object_id *oid,
- int deref, struct object **obj)
+static int get_object(struct ref_array_item *ref, const struct object_id *oid,
+ int deref, struct object **obj, struct strbuf *err)
{
int eaten;
+ int ret = 0;
unsigned long size;
void *buf = get_obj(oid, obj, &size, &eaten);
if (!buf)
- die(_("missing object %s for %s"),
- oid_to_hex(oid), ref->refname);
- if (!*obj)
- die(_("parse_object_buffer failed on %s for %s"),
- oid_to_hex(oid), ref->refname);
-
- grab_values(ref->value, deref, *obj, buf, size);
+ ret = strbuf_addf_ret(err, -1, _("missing object %s for %s"),
+ oid_to_hex(oid), ref->refname);
+ else if (!*obj)
+ ret = strbuf_addf_ret(err, -1, _("parse_object_buffer failed on
%s for %s"),
+ oid_to_hex(oid), ref->refname);
+ else
+ grab_values(ref->value, deref, *obj, buf, size);
if (!eaten)
free(buf);
+ return ret;
}
/*
* Parse the object referred by ref, and grab needed value.
*/
-static void populate_value(struct ref_array_item *ref)
+static int populate_value(struct ref_array_item *ref, struct strbuf *err)
{
struct object *obj;
int i;
@@ -1570,16 +1572,17 @@ static void populate_value(struct ref_array_item *ref)
break;
}
if (used_atom_cnt <= i)
- return;
+ return 0;
- get_object(ref, &ref->objectname, 0, &obj);
+ if (get_object(ref, &ref->objectname, 0, &obj, err))
+ return -1;
/*
* If there is no atom that wants to know about tagged
* object, we are done.
*/
if (!need_tagged || (obj->type != OBJ_TAG))
- return;
+ return 0;
/*
* If it is a tag object, see if we use a value that derefs
@@ -1593,20 +1596,23 @@ static void populate_value(struct ref_array_item *ref)
* is not consistent with what deref_tag() does
* which peels the onion to the core.
*/
- get_object(ref, tagged, 1, &obj);
+ return get_object(ref, tagged, 1, &obj, err);
}
/*
* Given a ref, return the value for the atom. This lazily gets value
* out of the object by calling populate value.
*/
-static void get_ref_atom_value(struct ref_array_item *ref, int atom, struct
atom_value **v)
+static int get_ref_atom_value(struct ref_array_item *ref, int atom,
+ struct atom_value **v, struct strbuf *err)
{
if (!ref->value) {
- populate_value(ref);
+ if (populate_value(ref, err))
+ return -1;
fill_missing_values(ref->value);
}
*v = &ref->value[atom];
+ return 0;
}
/*
@@ -2130,9 +2136,13 @@ static int cmp_ref_sorting(struct ref_sorting *s, struct
ref_array_item *a, stru
int cmp;
cmp_type cmp_type = used_atom[s->atom].type;
int (*cmp_fn)(const char *, const char *);
+ struct strbuf err = STRBUF_INIT;
- get_ref_atom_value(a, s->atom, &va);
- get_ref_atom_value(b, s->atom, &vb);
+ if (get_ref_atom_value(a, s->atom, &va, &err))
+ die("%s", err.buf);
+ if (get_ref_atom_value(b, s->atom, &vb, &err))
+ die("%s", err.buf);
+ strbuf_release(&err);
cmp_fn = s->ignore_case ? strcasecmp : strcmp;
if (s->version)
cmp = versioncmp(va->s, vb->s);
@@ -2210,12 +2220,8 @@ int format_ref_array_item(struct ref_array_item *info,
if (cp < sp)
append_literal(cp, sp, &state);
pos = parse_ref_filter_atom(format, sp + 2, ep, error_buf);
- if (pos < 0) {
- pop_stack_element(&state.stack);
- return -1;
- }
- get_ref_atom_value(info, pos, &atomv);
- if (atomv->handler(atomv, &state, error_buf)) {
+ if (pos < 0 || get_ref_atom_value(info, pos, &atomv, error_buf)
||
+ atomv->handler(atomv, &state, error_buf)) {
pop_stack_element(&state.stack);
return -1;
}
--
https://github.com/git/git/pull/466
