#include "cache.h"
+#include "string-list.h"
+
+/*
+ * A "string_list_each_func_t" function that normalizes an entry from
+ * GIT_CEILING_DIRECTORIES. If the path is unusable for some reason,
+ * die with an explanation.
+ */
+static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
+{
+ const char *ceil = item->string;
+ int len = strlen(ceil);
+ char buf[PATH_MAX+1];
+
+ if (len == 0)
+ die("Empty path is not supported");
+ if (len > PATH_MAX)
+ die("Path \"%s\" is too long", ceil);
+ if (!is_absolute_path(ceil))
+ die("Path \"%s\" is not absolute", ceil);
+ if (normalize_path_copy(buf, ceil) < 0)
+ die("Path \"%s\" could not be normalized", ceil);
+ len = strlen(buf);
+ if (len > 1 && buf[len-1] == '/')
+ die("Normalized path \"%s\" ended with slash", buf);
+ free(item->string);
+ item->string = xstrdup(buf);
+ return 1;
+}
+
+static void normalize_argv_string(const char **var, const char *input)
+{
+ if (!strcmp(input, "<null>"))
+ *var = NULL;
+ else if (!strcmp(input, "<empty>"))
+ *var = "";
+ else
+ *var = input;
+
+ if (*var && (**var == '<' || **var == '('))
+ die("Bad value: %s\n", input);
+}
int main(int argc, char **argv)
{
}
if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
- int len = longest_ancestor_length(argv[2], argv[3]);
+ int len;
+ struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
+ char *path = xstrdup(argv[2]);
+
+ /*
+ * We have to normalize the arguments because under
+ * Windows, bash mangles arguments that look like
+ * absolute POSIX paths or colon-separate lists of
+ * absolute POSIX paths into DOS paths (e.g.,
+ * "/foo:/foo/bar" might be converted to
+ * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
+ * whereas longest_ancestor_length() requires paths
+ * that use forward slashes.
+ */
+ if (normalize_path_copy(path, path))
+ die("Path \"%s\" could not be normalized", argv[2]);
+ string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
+ filter_string_list(&ceiling_dirs, 0,
+ normalize_ceiling_entry, NULL);
+ len = longest_ancestor_length(path, &ceiling_dirs);
+ string_list_clear(&ceiling_dirs, 0);
+ free(path);
printf("%d\n", len);
return 0;
}
return 0;
}
+ if (argc == 3 && !strcmp(argv[1], "print_path")) {
+ puts(argv[2]);
+ return 0;
+ }
+
+ if (argc == 4 && !strcmp(argv[1], "relative_path")) {
+ struct strbuf sb = STRBUF_INIT;
+ const char *in, *prefix, *rel;
+ normalize_argv_string(&in, argv[2]);
+ normalize_argv_string(&prefix, argv[3]);
+ rel = relative_path(in, prefix, &sb);
+ if (!rel)
+ puts("(null)");
+ else
+ puts(strlen(rel) > 0 ? rel : "(empty)");
+ strbuf_release(&sb);
+ return 0;
+ }
+
fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
argv[1] ? argv[1] : "(there was none)");
return 1;