filter-branch: eliminate duplicate mapped parents

diff --git a/diff-no-index.c b/diff-no-index.c
index ecf929336d0c8d40862ad88ac188f5e18166c9f9..265709ba8c51a4390fad11c7d1aa23551a4fd266 100644 (file)
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -15,8 +15,9 @@
 #include "log-tree.h"
 #include "builtin.h"
 #include "string-list.h"
+#include "dir.h"
 
-static int read_directory(const char *path, struct string_list *list)
+static int read_directory_contents(const char *path, struct string_list *list)
 {
        DIR *dir;
        struct dirent *e;
@@ -25,7 +26,7 @@ static int read_directory(const char *path, struct string_list *list)
                return error("Could not open directory %s", path);
 
        while ((e = readdir(dir)))
-               if (strcmp(".", e->d_name) && strcmp("..", e->d_name))
+               if (!is_dot_or_dotdot(e->d_name))
                        string_list_insert(list, e->d_name);
 
        closedir(dir);
@@ -107,9 +108,9 @@ static int queue_diff(struct diff_options *o,
                int i1, i2, ret = 0;
                size_t len1 = 0, len2 = 0;
 
-               if (name1 && read_directory(name1, &p1))
+               if (name1 && read_directory_contents(name1, &p1))
                        return -1;
-               if (name2 && read_directory(name2, &p2)) {
+               if (name2 && read_directory_contents(name2, &p2)) {
                        string_list_clear(&p1, 0);
                        return -1;
                }
@@ -183,63 +184,16 @@ static int queue_diff(struct diff_options *o,
 
 void diff_no_index(struct rev_info *revs,
                   int argc, const char **argv,
-                  int nongit, const char *prefix)
+                  const char *prefix)
 {
        int i, prefixlen;
-       int no_index = 0;
-       unsigned deprecated_show_diff_q_option_used = 0;
        const char *paths[2];
 
-       /* Were we asked to do --no-index explicitly? */
-       for (i = 1; i < argc; i++) {
-               if (!strcmp(argv[i], "--")) {
-                       i++;
-                       break;
-               }
-               if (!strcmp(argv[i], "--no-index"))
-                       no_index = 1;
-               if (argv[i][0] != '-')
-                       break;
-       }
-
-       if (!no_index && !nongit) {
-               /*
-                * Inside a git repository, without --no-index.  Only
-                * when a path outside the repository is given,
-                * e.g. "git diff /var/tmp/[12]", or "git diff
-                * Makefile /var/tmp/Makefile", allow it to be used as
-                * a colourful "diff" replacement.
-                */
-               if ((argc != i + 2) ||
-                   (path_inside_repo(prefix, argv[i]) &&
-                    path_inside_repo(prefix, argv[i+1])))
-                       return;
-       }
-       if (argc != i + 2) {
-               if (!no_index) {
-                       /*
-                        * There was no --no-index and there were not two
-                        * paths. It is possible that the user intended
-                        * to do an inside-repository operation.
-                        */
-                       fprintf(stderr, "Not a git repository\n");
-                       fprintf(stderr,
-                               "To compare two paths outside a working tree:\n");
-               }
-               /* Give the usage message for non-repository usage and exit. */
-               usagef("git diff %s <path> <path>",
-                      no_index ? "--no-index" : "[--no-index]");
-       }
-
        diff_setup(&revs->diffopt);
        for (i = 1; i < argc - 2; ) {
                int j;
                if (!strcmp(argv[i], "--no-index"))
                        i++;
-               else if (!strcmp(argv[i], "-q")) {
-                       deprecated_show_diff_q_option_used = 1;
-                       i++;
-               }
                else if (!strcmp(argv[i], "--"))
                        i++;
                else {
@@ -272,9 +226,6 @@ void diff_no_index(struct rev_info *revs,
        revs->max_count = -2;
        diff_setup_done(&revs->diffopt);
 
-       if (deprecated_show_diff_q_option_used)
-               handle_deprecated_show_diff_q(&revs->diffopt);
-
        setup_diff_pager(&revs->diffopt);
        DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);