From: Karthik Nayak <karthik....@gmail.com>
Using refname_atom_parser_internal(), introduce refname_atom_parser()
which will parse the %(symref) and %(refname) atoms. Store the parsed
information into the 'used_atom' structure based on the modifiers used
along with the atoms.
Now the '%(symref)' atom supports the ':strip' atom modifier. Update the
Documentation and tests to reflect this.
Helped-by: Jeff King <p...@peff.net>
Signed-off-by: Karthik Nayak <karthik....@gmail.com>
---
Documentation/git-for-each-ref.txt | 5 +++
ref-filter.c | 73 +++++++++++++++++++++-----------------
t/t6300-for-each-ref.sh | 9 +++++
3 files changed, 54 insertions(+), 33 deletions(-)
diff --git a/Documentation/git-for-each-ref.txt
b/Documentation/git-for-each-ref.txt
index 14240b407..5de22cf64 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -170,6 +170,11 @@ if::
the value between the %(if:...) and %(then) atoms with the
given string.
+symref::
+ The ref which the given symbolic ref refers to. If not a
+ symbolic ref, nothing is printed. Respects the `:short` and
+ `:strip` options in the same way as `refname` above.
+
In addition to the above, for commit and tag objects, the header
field names (`tree`, `parent`, `object`, `type`, and `tag`) can
be used to specify the value in the header field.
diff --git a/ref-filter.c b/ref-filter.c
index c1ebc406c..7bfd65633 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -187,6 +187,11 @@ static void objectname_atom_parser(struct used_atom *atom,
const char *arg)
die(_("unrecognized %%(objectname) argument: %s"), arg);
}
+static void refname_atom_parser(struct used_atom *atom, const char *arg)
+{
+ return refname_atom_parser_internal(&atom->u.refname, arg, atom->name);
+}
+
static align_type parse_align_position(const char *s)
{
if (!strcmp(s, "right"))
@@ -257,7 +262,7 @@ static struct {
cmp_type cmp_type;
void (*parser)(struct used_atom *atom, const char *arg);
} valid_atom[] = {
- { "refname" },
+ { "refname" , FIELD_STR, refname_atom_parser },
{ "objecttype" },
{ "objectsize", FIELD_ULONG },
{ "objectname", FIELD_STR, objectname_atom_parser },
@@ -287,7 +292,7 @@ static struct {
{ "contents", FIELD_STR, contents_atom_parser },
{ "upstream", FIELD_STR, remote_ref_atom_parser },
{ "push", FIELD_STR, remote_ref_atom_parser },
- { "symref" },
+ { "symref", FIELD_STR, refname_atom_parser },
{ "flag" },
{ "HEAD" },
{ "color", FIELD_STR, color_atom_parser },
@@ -1082,21 +1087,16 @@ static inline char *copy_advance(char *dst, const char
*src)
return dst;
}
-static const char *strip_ref_components(const char *refname, const char
*nr_arg)
+static const char *strip_ref_components(const char *refname, unsigned int len)
{
- char *end;
- long nr = strtol(nr_arg, &end, 10);
- long remaining = nr;
+ long remaining = len;
const char *start = refname;
- if (nr < 1 || *end != '\0')
- die(_(":strip= requires a positive integer argument"));
-
while (remaining) {
switch (*start++) {
case '\0':
- die(_("ref '%s' does not have %ld components to
:strip"),
- refname, nr);
+ die(_("ref '%s' does not have %ud components to
:strip"),
+ refname, len);
case '/':
remaining--;
break;
@@ -1105,6 +1105,16 @@ static const char *strip_ref_components(const char
*refname, const char *nr_arg)
return start;
}
+static const char *show_ref(struct refname_atom *atom, const char *refname)
+{
+ if (atom->option == R_SHORT)
+ return shorten_unambiguous_ref(refname, warn_ambiguous_refs);
+ else if (atom->option == R_STRIP)
+ return strip_ref_components(refname, atom->strip);
+ else
+ return refname;
+}
+
static void fill_remote_ref_details(struct used_atom *atom, const char
*refname,
struct branch *branch, const char **s)
{
@@ -1177,6 +1187,21 @@ char *get_head_description(void)
return strbuf_detach(&desc, NULL);
}
+static const char *get_symref(struct used_atom *atom, struct ref_array_item
*ref)
+{
+ if (!ref->symref)
+ return "";
+ else
+ return show_ref(&atom->u.refname, ref->symref);
+}
+
+static const char *get_refname(struct used_atom *atom, struct ref_array_item
*ref)
+{
+ if (ref->kind & FILTER_REFS_DETACHED_HEAD)
+ return get_head_description();
+ return show_ref(&atom->u.refname, ref->refname);
+}
+
/*
* Parse the object referred by ref, and grab needed value.
*/
@@ -1205,7 +1230,6 @@ static void populate_value(struct ref_array_item *ref)
struct atom_value *v = &ref->value[i];
int deref = 0;
const char *refname;
- const char *formatp;
struct branch *branch = NULL;
v->handler = append_atom;
@@ -1216,12 +1240,10 @@ static void populate_value(struct ref_array_item *ref)
name++;
}
- if (starts_with(name, "refname")) {
- refname = ref->refname;
- if (ref->kind & FILTER_REFS_DETACHED_HEAD)
- refname = get_head_description();
- } else if (starts_with(name, "symref"))
- refname = ref->symref ? ref->symref : "";
+ if (starts_with(name, "refname"))
+ refname = get_refname(atom, ref);
+ else if (starts_with(name, "symref"))
+ refname = get_symref(atom, ref);
else if (starts_with(name, "upstream")) {
const char *branch_name;
/* only local branches may have an upstream */
@@ -1297,21 +1319,6 @@ static void populate_value(struct ref_array_item *ref)
} else
continue;
- formatp = strchr(name, ':');
- if (formatp) {
- const char *arg;
-
- formatp++;
- if (!strcmp(formatp, "short"))
- refname = shorten_unambiguous_ref(refname,
- warn_ambiguous_refs);
- else if (skip_prefix(formatp, "strip=", &arg))
- refname = strip_ref_components(refname, arg);
- else
- die(_("unknown %.*s format %s"),
- (int)(formatp - name), name, formatp);
- }
-
if (!deref)
v->s = refname;
else
diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index 7663a3661..18a9e2565 100755
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -624,4 +624,13 @@ test_expect_success 'Verify usage of %(symref:short) atom'
'
test_cmp expected actual
'
+cat >expected <<EOF
+master
+EOF
+
+test_expect_success 'Verify usage of %(symref:strip) atom' '
+ git for-each-ref --format="%(symref:strip=2)" refs/heads/sym > actual &&
+ test_cmp expected actual
+'
+
test_done
--
2.11.0
