[PATCH v12 01/26] sha1-name.c: add `get_oidf()` which acts like `get_oid()`

From

Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>

Date

Dec 20, 2018, 19:44 UTC

Message-ID

<6b3308038a727e27930f95b208dd3f2c94085375.1545331726.git.ungureanupaulsebastian@gmail.com>

In-Reply-To

<cover.1545331726.git.ungureanupaulsebastian@gmail.com>

Original-idea-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
---
 cache.h     |  1 +
 sha1-name.c | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/cache.h b/cache.h
index b7acd81d2e..28ccc97e10 100644
--- a/cache.h
+++ b/cache.h
@@ -1335,6 +1335,7 @@ struct object_context {
 	GET_OID_BLOB)
 
 extern int get_oid(const char *str, struct object_id *oid);
+extern int get_oidf(struct object_id *oid, const char *fmt, ...);
 extern int get_oid_commit(const char *str, struct object_id *oid);
 extern int get_oid_committish(const char *str, struct object_id *oid);
 extern int get_oid_tree(const char *str, struct object_id *oid);
diff --git a/sha1-name.c b/sha1-name.c
index b24502811b..9524a09525 100644
--- a/sha1-name.c
+++ b/sha1-name.c
@@ -1516,6 +1516,25 @@ int get_oid(const char *name, struct object_id *oid)
 	return get_oid_with_context(name, 0, oid, &unused);
 }
 
+/*
+ * This returns a non-zero value if the string (built using printf
+ * format and the given arguments) is not a valid object.
+ */
+int get_oidf(struct object_id *oid, const char *fmt, ...)
+{
+	va_list ap;
+	int ret;
+	struct strbuf sb = STRBUF_INIT;
+
+	va_start(ap, fmt);
+	strbuf_vaddf(&sb, fmt, ap);
+	va_end(ap);
+
+	ret = get_oid(sb.buf, oid);
+	strbuf_release(&sb);
+
+	return ret;
+}
 
 /*
  * Many callers know that the user meant to name a commit-ish by

-- 
2.20.1.441.g764a526393