git-branch -D: make it work even when on a yet-to-be-born branch

diff --git a/builtin-apply.c b/builtin-apply.c
index cbe597771b42e34a2a8c0a2e88e1b7baadf7a6b4..436d9e188070df0e4a51186716b033658a8672b5 100644 (file)
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -43,7 +43,7 @@ static int apply_verbosely;
 static int no_add;
 static int show_index_info;
 static int line_termination = '\n';
-static unsigned long p_context = -1;
+static unsigned long p_context = ULONG_MAX;
 static const char apply_usage[] =
 "git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [--reverse] [--reject] [--verbose] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
 
@@ -140,12 +140,15 @@ struct fragment {
 struct patch {
        char *new_name, *old_name, *def_name;
        unsigned int old_mode, new_mode;
-       int is_rename, is_copy, is_new, is_delete, is_binary;
+       int is_new, is_delete;  /* -1 = unknown, 0 = false, 1 = true */
        int rejected;
        unsigned long deflate_origlen;
        int lines_added, lines_deleted;
        int score;
-       int inaccurate_eof:1;
+       unsigned int inaccurate_eof:1;
+       unsigned int is_binary:1;
+       unsigned int is_copy:1;
+       unsigned int is_rename:1;
        struct fragment *fragments;
        char *result;
        unsigned long resultsize;
@@ -360,7 +363,7 @@ static int gitdiff_hdrend(const char *line, struct patch *patch)
 static char *gitdiff_verify_name(const char *line, int isnull, char *orig_name, const char *oldnew)
 {
        if (!orig_name && !isnull)
-               return find_name(line, NULL, 1, 0);
+               return find_name(line, NULL, 1, TERM_TAB);
 
        if (orig_name) {
                int len;
@@ -370,7 +373,7 @@ static char *gitdiff_verify_name(const char *line, int isnull, char *orig_name,
                len = strlen(name);
                if (isnull)
                        die("git-apply: bad git-diff - expected /dev/null, got %s on line %d", name, linenr);
-               another = find_name(line, NULL, 1, 0);
+               another = find_name(line, NULL, 1, TERM_TAB);
                if (!another || memcmp(another, name, len))
                        die("git-apply: bad git-diff - inconsistent %s filename on line %d", oldnew, linenr);
                free(another);
@@ -934,6 +937,7 @@ static int parse_fragment(char *line, unsigned long size, struct patch *patch, s
                switch (*line) {
                default:
                        return -1;
+               case '\n': /* newer GNU diff, an empty context line */
                case ' ':
                        oldlines--;
                        newlines--;
@@ -1042,10 +1046,14 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc
                 * then not having oldlines means the patch is creation,
                 * and not having newlines means the patch is deletion.
                 */
-               if (patch->is_new < 0 && !oldlines)
+               if (patch->is_new < 0 && !oldlines) {
                        patch->is_new = 1;
-               if (patch->is_delete < 0 && !newlines)
+                       patch->old_name = NULL;
+               }
+               if (patch->is_delete < 0 && !newlines) {
                        patch->is_delete = 1;
+                       patch->new_name = NULL;
+               }
        }
 
        if (0 < patch->is_new && oldlines)
@@ -1623,6 +1631,14 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
                                first = '-';
                }
                switch (first) {
+               case '\n':
+                       /* Newer GNU diff, empty context line */
+                       if (plen < 0)
+                               /* ... followed by '\No newline'; nothing */
+                               break;
+                       old[oldsize++] = '\n';
+                       new[newsize++] = '\n';
+                       break;
                case ' ':
                case '-':
                        memcpy(old + oldsize, patch + 1, plen);
@@ -2103,7 +2119,11 @@ static void numstat_patch_list(struct patch *patch)
        for ( ; patch; patch = patch->next) {
                const char *name;
                name = patch->new_name ? patch->new_name : patch->old_name;
-               printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
+               if (patch->is_binary)
+                       printf("-\t-\t");
+               else
+                       printf("%d\t%d\t",
+                              patch->lines_added, patch->lines_deleted);
                if (line_termination && quote_c_style(name, NULL, NULL, 0))
                        quote_c_style(name, NULL, stdout, 0);
                else