Method: Rugged::TagCollection#[]

Defined in:
ext/rugged/rugged_tag_collection.c

#[](name) ⇒ Object

Lookup a tag in repo, with the given name.

name can be a short or canonical tag name (e.g. v0.1.0 or refs/tags/v0.1.0).

Returns the looked up tag, or nil if the tag doesn’t exist.


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# File 'ext/rugged/rugged_tag_collection.c', line 37

static VALUE rb_git_tag_collection_aref(VALUE self, VALUE rb_name)
{
	git_reference *tag;
	git_repository *repo;
	int error;
	VALUE rb_repo = rugged_owner(self);

	rugged_check_repo(rb_repo);
	Data_Get_Struct(rb_repo, git_repository, repo);

	Check_Type(rb_name, T_STRING);

	error = git_reference_lookup(&tag, repo, StringValueCStr(rb_name));
	if (error == GIT_ENOTFOUND || error == GIT_EINVALIDSPEC) {
		char *canonical_ref = xmalloc((RSTRING_LEN(rb_name) + strlen("refs/tags/") + 1) * sizeof(char));
		strcpy(canonical_ref, "refs/tags/");
		strcat(canonical_ref, StringValueCStr(rb_name));

		error = git_reference_lookup(&tag, repo, canonical_ref);
		xfree(canonical_ref);
		if (error == GIT_ENOTFOUND)
			return Qnil;
	}

	rugged_exception_check(error);

	return rugged_ref_new(rb_cRuggedTag, rb_repo, tag);
}