userdiff: support unsigned and long long suffixes of integer constants

diff --git a/unpack-trees.c b/unpack-trees.c
index bf01717015b662cec594d2d3c73e57f409037533..164354dad7cbbaa7100f73256807680a75188021 100644 (file)
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -830,23 +830,24 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
 }
 
 static int clear_ce_flags_1(struct cache_entry **cache, int nr,
-                           char *prefix, int prefix_len,
+                           struct strbuf *prefix,
                            int select_mask, int clear_mask,
                            struct exclude_list *el, int defval);
 
 /* Whole directory matching */
 static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
-                             char *prefix, int prefix_len,
+                             struct strbuf *prefix,
                              char *basename,
                              int select_mask, int clear_mask,
                              struct exclude_list *el, int defval)
 {
        struct cache_entry **cache_end;
        int dtype = DT_DIR;
-       int ret = is_excluded_from_list(prefix, prefix_len,
+       int ret = is_excluded_from_list(prefix->buf, prefix->len,
                                        basename, &dtype, el);
+       int rc;
 
-       prefix[prefix_len++] = '/';
+       strbuf_addch(prefix, '/');
 
        /* If undecided, use matching result of parent dir in defval */
        if (ret < 0)
@@ -854,7 +855,7 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
 
        for (cache_end = cache; cache_end != cache + nr; cache_end++) {
                struct cache_entry *ce = *cache_end;
-               if (strncmp(ce->name, prefix, prefix_len))
+               if (strncmp(ce->name, prefix->buf, prefix->len))
                        break;
        }
 
@@ -865,10 +866,12 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
         * calling clear_ce_flags_1(). That function will call
         * the expensive is_excluded_from_list() on every entry.
         */
-       return clear_ce_flags_1(cache, cache_end - cache,
-                               prefix, prefix_len,
-                               select_mask, clear_mask,
-                               el, ret);
+       rc = clear_ce_flags_1(cache, cache_end - cache,
+                             prefix,
+                             select_mask, clear_mask,
+                             el, ret);
+       strbuf_setlen(prefix, prefix->len - 1);
+       return rc;
 }
 
 /*
@@ -887,7 +890,7 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
  * Top level path has prefix_len zero.
  */
 static int clear_ce_flags_1(struct cache_entry **cache, int nr,
-                           char *prefix, int prefix_len,
+                           struct strbuf *prefix,
                            int select_mask, int clear_mask,
                            struct exclude_list *el, int defval)
 {
@@ -907,10 +910,10 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
                        continue;
                }
 
-               if (prefix_len && strncmp(ce->name, prefix, prefix_len))
+               if (prefix->len && strncmp(ce->name, prefix->buf, prefix->len))
                        break;
 
-               name = ce->name + prefix_len;
+               name = ce->name + prefix->len;
                slash = strchr(name, '/');
 
                /* If it's a directory, try whole directory match first */
@@ -918,29 +921,26 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
                        int processed;
 
                        len = slash - name;
-                       memcpy(prefix + prefix_len, name, len);
+                       strbuf_add(prefix, name, len);
 
-                       /*
-                        * terminate the string (no trailing slash),
-                        * clear_c_f_dir needs it
-                        */
-                       prefix[prefix_len + len] = '\0';
                        processed = clear_ce_flags_dir(cache, cache_end - cache,
-                                                      prefix, prefix_len + len,
-                                                      prefix + prefix_len,
+                                                      prefix,
+                                                      prefix->buf + prefix->len - len,
                                                       select_mask, clear_mask,
                                                       el, defval);
 
                        /* clear_c_f_dir eats a whole dir already? */
                        if (processed) {
                                cache += processed;
+                               strbuf_setlen(prefix, prefix->len - len);
                                continue;
                        }
 
-                       prefix[prefix_len + len++] = '/';
+                       strbuf_addch(prefix, '/');
                        cache += clear_ce_flags_1(cache, cache_end - cache,
-                                                 prefix, prefix_len + len,
+                                                 prefix,
                                                  select_mask, clear_mask, el, defval);
+                       strbuf_setlen(prefix, prefix->len - len - 1);
                        continue;
                }
 
@@ -961,9 +961,12 @@ static int clear_ce_flags(struct cache_entry **cache, int nr,
                            int select_mask, int clear_mask,
                            struct exclude_list *el)
 {
-       char prefix[PATH_MAX];
+       static struct strbuf prefix = STRBUF_INIT;
+
+       strbuf_reset(&prefix);
+
        return clear_ce_flags_1(cache, nr,
-                               prefix, 0,
+                               &prefix,
                                select_mask, clear_mask,
                                el, 0);
 }
@@ -1154,8 +1157,10 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
 
        o->src_index = NULL;
        ret = check_updates(o) ? (-2) : 0;
-       if (o->dst_index)
+       if (o->dst_index) {
+               discard_index(o->dst_index);
                *o->dst_index = o->result;
+       }
 
 done:
        clear_exclude_list(&el);
@@ -1355,7 +1360,7 @@ static int icase_exists(struct unpack_trees_options *o, const char *name, int le
 {
        const struct cache_entry *src;
 
-       src = index_name_exists(o->src_index, name, len, 1);
+       src = index_file_exists(o->src_index, name, len, 1);
        return src && !ie_match_stat(o->src_index, src, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
 }
 
@@ -1401,7 +1406,7 @@ static int check_ok_to_remove(const char *name, int len, int dtype,
         * delete this path, which is in a subdirectory that
         * is being replaced with a blob.
         */
-       result = index_name_exists(&o->result, name, len, 0);
+       result = index_file_exists(&o->result, name, len, 0);
        if (result) {
                if (result->ce_flags & CE_REMOVE)
                        return 0;
@@ -1761,14 +1766,23 @@ int twoway_merge(const struct cache_entry * const *src,
                newtree = NULL;
 
        if (current) {
-               if ((!oldtree && !newtree) || /* 4 and 5 */
-                   (!oldtree && newtree &&
-                    same(current, newtree)) || /* 6 and 7 */
-                   (oldtree && newtree &&
-                    same(oldtree, newtree)) || /* 14 and 15 */
-                   (oldtree && newtree &&
-                    !same(oldtree, newtree) && /* 18 and 19 */
-                    same(current, newtree))) {
+               if (current->ce_flags & CE_CONFLICTED) {
+                       if (same(oldtree, newtree) || o->reset) {
+                               if (!newtree)
+                                       return deleted_entry(current, current, o);
+                               else
+                                       return merged_entry(newtree, current, o);
+                       }
+                       return o->gently ? -1 : reject_merge(current, o);
+               }
+               else if ((!oldtree && !newtree) || /* 4 and 5 */
+                        (!oldtree && newtree &&
+                         same(current, newtree)) || /* 6 and 7 */
+                        (oldtree && newtree &&
+                         same(oldtree, newtree)) || /* 14 and 15 */
+                        (oldtree && newtree &&
+                         !same(oldtree, newtree) && /* 18 and 19 */
+                         same(current, newtree))) {
                        return keep_entry(current, o);
                }
                else if (oldtree && !newtree && same(current, oldtree)) {