1 files changed, 91 insertions, 0 deletions
diff --git a/src/util/strvec.c b/src/util/strvec.c
new file mode 100644
index 000000000..1e34c4c03
--- /dev/null
+++ b/src/util/strvec.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "strvec.h"
+
+GIT_INLINE(int) copy_strings(git_strvec *out, const char **in, size_t len)
+{
+	size_t i;
+
+	GIT_ERROR_CHECK_ALLOC(out->ptr);
+
+	for (i = 0; i < len; i++) {
+		out->ptr[i] = git__strdup(in[i]);
+		GIT_ERROR_CHECK_ALLOC(out->ptr[i]);
+	}
+
+	out->len = len;
+	return 0;
+}
+
+int git_strvec_copy_strings(git_strvec *out, const char **in, size_t len)
+{
+	out->ptr = git__calloc(len, sizeof(char *));
+
+	return copy_strings(out, in, len);
+}
+
+int git_strvec_copy_strings_with_null(
+	git_strvec *out,
+	const char **in,
+	size_t len)
+{
+	size_t new_len;
+
+	GIT_ERROR_CHECK_ALLOC_ADD(&new_len, len, 1);
+
+	if (copy_strings(out, in, len) < 0)
+		return -1;
+
+	out->len = new_len;
+	return 0;
+}
+
+bool git_strvec_contains_prefix(
+	const git_strvec *strings,
+	const char *str,
+	size_t n)
+{
+	size_t i;
+
+	for (i = 0; i < strings->len; i++) {
+		if (strncmp(strings->ptr[i], str, n) == 0)
+			return true;
+	}
+
+	return false;
+}
+
+bool git_strvec_contains_key(
+	const git_strvec *strings,
+	const char *key,
+	char delimiter)
+{
+	const char *c;
+
+	for (c = key; *c; c++) {
+		if (*c == delimiter)
+			break;
+	}
+
+	return *c ?
+	       git_strvec_contains_prefix(strings, key, (c - key)) :
+	       false;
+}
+
+void git_strvec_dispose(git_strvec *strings)
+{
+	size_t i;
+
+	if (!strings)
+		return;
+
+	for (i = 0; i < strings->len; i++)
+		git__free(strings->ptr[i]);
+
+	git__free(strings->ptr);
+}