Imported Upstream version 1.8.1.3

[platform/upstream/git.git] / builtin / apply.c

diff --git a/builtin/apply.c b/builtin/apply.c
index 156b3ce..9706ca7 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -2095,7 +2095,7 @@ static void update_pre_post_images(struct image *preimage,
                                   char *buf,
                                   size_t len, size_t postlen)
 {
-       int i, ctx;
+       int i, ctx, reduced;
        char *new, *old, *fixed;
        struct image fixed_preimage;
 
@@ -2105,8 +2105,10 @@ static void update_pre_post_images(struct image *preimage,
         * free "oldlines".
         */
        prepare_image(&fixed_preimage, buf, len, 1);
-       assert(fixed_preimage.nr == preimage->nr);
-       for (i = 0; i < preimage->nr; i++)
+       assert(postlen
+              ? fixed_preimage.nr == preimage->nr
+              : fixed_preimage.nr <= preimage->nr);
+       for (i = 0; i < fixed_preimage.nr; i++)
                fixed_preimage.line[i].flag = preimage->line[i].flag;
        free(preimage->line_allocated);
        *preimage = fixed_preimage;
@@ -2126,7 +2128,8 @@ static void update_pre_post_images(struct image *preimage,
        else
                new = old;
        fixed = preimage->buf;
-       for (i = ctx = 0; i < postimage->nr; i++) {
+
+       for (i = reduced = ctx = 0; i < postimage->nr; i++) {
                size_t len = postimage->line[i].len;
                if (!(postimage->line[i].flag & LINE_COMMON)) {
                        /* an added line -- no counterparts in preimage */
@@ -2145,8 +2148,15 @@ static void update_pre_post_images(struct image *preimage,
                        fixed += preimage->line[ctx].len;
                        ctx++;
                }
-               if (preimage->nr <= ctx)
-                       die(_("oops"));
+
+               /*
+                * preimage is expected to run out, if the caller
+                * fixed addition of trailing blank lines.
+                */
+               if (preimage->nr <= ctx) {
+                       reduced++;
+                       continue;
+               }
 
                /* and copy it in, while fixing the line length */
                len = preimage->line[ctx].len;
@@ -2159,6 +2169,7 @@ static void update_pre_post_images(struct image *preimage,
 
        /* Fix the length of the whole thing */
        postimage->len = new - postimage->buf;
+       postimage->nr -= reduced;
 }
 
 static int match_fragment(struct image *img,
@@ -3598,7 +3609,6 @@ static void build_fake_ancestor(struct patch *list, const char *filename)
         * worth showing the new sha1 prefix, but until then...
         */
        for (patch = list; patch; patch = patch->next) {
-               const unsigned char *sha1_ptr;
                unsigned char sha1[20];
                struct cache_entry *ce;
                const char *name;
@@ -3606,20 +3616,23 @@ static void build_fake_ancestor(struct patch *list, const char *filename)
                name = patch->old_name ? patch->old_name : patch->new_name;
                if (0 < patch->is_new)
                        continue;
-               else if (get_sha1_blob(patch->old_sha1_prefix, sha1))
-                       /* git diff has no index line for mode/type changes */
-                       if (!patch->lines_added && !patch->lines_deleted) {
-                               if (get_current_sha1(patch->old_name, sha1))
-                                       die("mode change for %s, which is not "
-                                               "in current HEAD", name);
-                               sha1_ptr = sha1;
-                       } else
-                               die("sha1 information is lacking or useless "
-                                       "(%s).", name);
-               else
-                       sha1_ptr = sha1;
 
-               ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0);
+               if (S_ISGITLINK(patch->old_mode)) {
+                       if (get_sha1_hex(patch->old_sha1_prefix, sha1))
+                               die("submoule change for %s without full index name",
+                                   name);
+               } else if (!get_sha1_blob(patch->old_sha1_prefix, sha1)) {
+                       ; /* ok */
+               } else if (!patch->lines_added && !patch->lines_deleted) {
+                       /* mode-only change: update the current */
+                       if (get_current_sha1(patch->old_name, sha1))
+                               die("mode change for %s, which is not "
+                                   "in current HEAD", name);
+               } else
+                       die("sha1 information is lacking or useless "
+                           "(%s).", name);
+
+               ce = make_cache_entry(patch->old_mode, sha1, name, 0, 0);
                if (!ce)
                        die(_("make_cache_entry failed for path '%s'"), name);
                if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))