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-rw-r--r--t/helper/test-string-list.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/t/helper/test-string-list.c b/t/helper/test-string-list.c
new file mode 100644
index 0000000000..2123dda85b
--- /dev/null
+++ b/t/helper/test-string-list.c
@@ -0,0 +1,129 @@
+#include "test-tool.h"
+#include "cache.h"
+#include "string-list.h"
+
+/*
+ * Parse an argument into a string list. arg should either be a
+ * ':'-separated list of strings, or "-" to indicate an empty string
+ * list (as opposed to "", which indicates a string list containing a
+ * single empty string). list->strdup_strings must be set.
+ */
+static void parse_string_list(struct string_list *list, const char *arg)
+{
+ if (!strcmp(arg, "-"))
+ return;
+
+ (void)string_list_split(list, arg, ':', -1);
+}
+
+static void write_list(const struct string_list *list)
+{
+ int i;
+ for (i = 0; i < list->nr; i++)
+ printf("[%d]: \"%s\"\n", i, list->items[i].string);
+}
+
+static void write_list_compact(const struct string_list *list)
+{
+ int i;
+ if (!list->nr)
+ printf("-\n");
+ else {
+ printf("%s", list->items[0].string);
+ for (i = 1; i < list->nr; i++)
+ printf(":%s", list->items[i].string);
+ printf("\n");
+ }
+}
+
+static int prefix_cb(struct string_list_item *item, void *cb_data)
+{
+ const char *prefix = (const char *)cb_data;
+ return starts_with(item->string, prefix);
+}
+
+int cmd__string_list(int argc, const char **argv)
+{
+ if (argc == 5 && !strcmp(argv[1], "split")) {
+ struct string_list list = STRING_LIST_INIT_DUP;
+ int i;
+ const char *s = argv[2];
+ int delim = *argv[3];
+ int maxsplit = atoi(argv[4]);
+
+ i = string_list_split(&list, s, delim, maxsplit);
+ printf("%d\n", i);
+ write_list(&list);
+ string_list_clear(&list, 0);
+ return 0;
+ }
+
+ if (argc == 5 && !strcmp(argv[1], "split_in_place")) {
+ struct string_list list = STRING_LIST_INIT_NODUP;
+ int i;
+ char *s = xstrdup(argv[2]);
+ int delim = *argv[3];
+ int maxsplit = atoi(argv[4]);
+
+ i = string_list_split_in_place(&list, s, delim, maxsplit);
+ printf("%d\n", i);
+ write_list(&list);
+ string_list_clear(&list, 0);
+ free(s);
+ return 0;
+ }
+
+ if (argc == 4 && !strcmp(argv[1], "filter")) {
+ /*
+ * Retain only the items that have the specified prefix.
+ * Arguments: list|- prefix
+ */
+ struct string_list list = STRING_LIST_INIT_DUP;
+ const char *prefix = argv[3];
+
+ parse_string_list(&list, argv[2]);
+ filter_string_list(&list, 0, prefix_cb, (void *)prefix);
+ write_list_compact(&list);
+ string_list_clear(&list, 0);
+ return 0;
+ }
+
+ if (argc == 3 && !strcmp(argv[1], "remove_duplicates")) {
+ struct string_list list = STRING_LIST_INIT_DUP;
+
+ parse_string_list(&list, argv[2]);
+ string_list_remove_duplicates(&list, 0);
+ write_list_compact(&list);
+ string_list_clear(&list, 0);
+ return 0;
+ }
+
+ if (argc == 2 && !strcmp(argv[1], "sort")) {
+ struct string_list list = STRING_LIST_INIT_NODUP;
+ struct strbuf sb = STRBUF_INIT;
+ struct string_list_item *item;
+
+ strbuf_read(&sb, 0, 0);
+
+ /*
+ * Split by newline, but don't create a string_list item
+ * for the empty string after the last separator.
+ */
+ if (sb.len && sb.buf[sb.len - 1] == '\n')
+ strbuf_setlen(&sb, sb.len - 1);
+ string_list_split_in_place(&list, sb.buf, '\n', -1);
+
+ string_list_sort(&list);
+
+ for_each_string_list_item(item, &list)
+ puts(item->string);
+
+ string_list_clear(&list, 0);
+ strbuf_release(&sb);
+ return 0;
+ }
+
+ fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
+ argv[1] ? argv[1] : "(there was none)");
+ return 1;
+}