Merge branch 'fc/apply-p2-get-header-name'

* fc/apply-p2-get-header-name:
  test: git-apply -p2 rename/chmod only
  Fix git-apply with -p greater than 1

diff --git a/builtin/apply.c b/builtin/apply.c
index 3e43425f65e386fb2cddd5245b99b8c1e5cb3d75..14951daedffa9e8a8a913eee5e8423220e86e291 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -942,28 +942,28 @@ static int gitdiff_newfile(const char *line, struct patch *patch)
 static int gitdiff_copysrc(const char *line, struct patch *patch)
 {
        patch->is_copy = 1;
-       patch->old_name = find_name(line, NULL, 0, 0);
+       patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
        return 0;
 }
 
 static int gitdiff_copydst(const char *line, struct patch *patch)
 {
        patch->is_copy = 1;
-       patch->new_name = find_name(line, NULL, 0, 0);
+       patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
        return 0;
 }
 
 static int gitdiff_renamesrc(const char *line, struct patch *patch)
 {
        patch->is_rename = 1;
-       patch->old_name = find_name(line, NULL, 0, 0);
+       patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
        return 0;
 }
 
 static int gitdiff_renamedst(const char *line, struct patch *patch)
 {
        patch->is_rename = 1;
-       patch->new_name = find_name(line, NULL, 0, 0);
+       patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
        return 0;
 }
 
@@ -1048,7 +1048,7 @@ static char *git_header_name(char *line, int llen)
 {
        const char *name;
        const char *second = NULL;
-       size_t len;
+       size_t len, line_len;
 
        line += strlen("diff --git ");
        llen -= strlen("diff --git ");
@@ -1148,6 +1148,10 @@ static char *git_header_name(char *line, int llen)
         * Accept a name only if it shows up twice, exactly the same
         * form.
         */
+       second = strchr(name, '\n');
+       if (!second)
+               return NULL;
+       line_len = second - name;
        for (len = 0 ; ; len++) {
                switch (name[len]) {
                default:
@@ -1155,15 +1159,11 @@ static char *git_header_name(char *line, int llen)
                case '\n':
                        return NULL;
                case '\t': case ' ':
-                       second = name+len;
-                       for (;;) {
-                               char c = *second++;
-                               if (c == '\n')
-                                       return NULL;
-                               if (c == '/')
-                                       break;
-                       }
-                       if (second[len] == '\n' && !memcmp(name, second, len)) {
+                       second = stop_at_slash(name + len, line_len - len);
+                       if (!second)
+                               return NULL;
+                       second++;
+                       if (second[len] == '\n' && !strncmp(name, second, len)) {
                                return xmemdupz(name, len);
                        }
                }

diff --git a/t/t4120-apply-popt.sh b/t/t4120-apply-popt.sh
index 2b2d00b33410282b6decd0af9118ee3f79489e34..579c9e61054521301464bfc31351040d45966836 100755 (executable)
--- a/t/t4120-apply-popt.sh
+++ b/t/t4120-apply-popt.sh
@@ -56,4 +56,30 @@ test_expect_success 'apply with too large -p and fancy filename' '
        grep "removing 3 leading" err
 '
 
+test_expect_success 'apply (-p2) diff, mode change only' '
+       cat >patch.chmod <<-\EOF &&
+       diff --git a/sub/file1 b/sub/file1
+       old mode 100644
+       new mode 100755
+       EOF
+       chmod 644 file1 &&
+       git apply -p2 patch.chmod &&
+       test -x file1
+'
+
+test_expect_success 'apply (-p2) diff, rename' '
+       cat >patch.rename <<-\EOF &&
+       diff --git a/sub/file1 b/sub/file2
+       similarity index 100%
+       rename from sub/file1
+       rename to sub/file2
+       EOF
+       echo A >expected &&
+
+       cp file1.saved file1 &&
+       rm -f file2 &&
+       git apply -p2 patch.rename &&
+       test_cmp expected file2
+'
+
 test_done