Merge branch 'pw/rebase-i-regression-fix'
[gitweb.git] / builtin / diff.c
index b7a9405d9fbec46edf99637557d7499fb58c4d77..8c03ddaf589bbdce723b00a9d911673b064bd13e 100644 (file)
@@ -21,7 +21,7 @@
 #define DIFF_NO_INDEX_IMPLICIT 2
 
 struct blobinfo {
-       unsigned char sha1[20];
+       struct object_id oid;
        const char *name;
        unsigned mode;
 };
@@ -31,26 +31,23 @@ static const char builtin_diff_usage[] =
 
 static void stuff_change(struct diff_options *opt,
                         unsigned old_mode, unsigned new_mode,
-                        const unsigned char *old_sha1,
-                        const unsigned char *new_sha1,
-                        int old_sha1_valid,
-                        int new_sha1_valid,
+                        const struct object_id *old_oid,
+                        const struct object_id *new_oid,
+                        int old_oid_valid,
+                        int new_oid_valid,
                         const char *old_name,
                         const char *new_name)
 {
        struct diff_filespec *one, *two;
 
-       if (!is_null_sha1(old_sha1) && !is_null_sha1(new_sha1) &&
-           !hashcmp(old_sha1, new_sha1) && (old_mode == new_mode))
+       if (!is_null_oid(old_oid) && !is_null_oid(new_oid) &&
+           !oidcmp(old_oid, new_oid) && (old_mode == new_mode))
                return;
 
        if (DIFF_OPT_TST(opt, REVERSE_DIFF)) {
-               unsigned tmp;
-               const unsigned char *tmp_u;
-               const char *tmp_c;
-               tmp = old_mode; old_mode = new_mode; new_mode = tmp;
-               tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u;
-               tmp_c = old_name; old_name = new_name; new_name = tmp_c;
+               SWAP(old_mode, new_mode);
+               SWAP(old_oid, new_oid);
+               SWAP(old_name, new_name);
        }
 
        if (opt->prefix &&
@@ -60,8 +57,8 @@ static void stuff_change(struct diff_options *opt,
 
        one = alloc_filespec(old_name);
        two = alloc_filespec(new_name);
-       fill_filespec(one, old_sha1, old_sha1_valid, old_mode);
-       fill_filespec(two, new_sha1, new_sha1_valid, new_mode);
+       fill_filespec(one, old_oid->hash, old_oid_valid, old_mode);
+       fill_filespec(two, new_oid->hash, new_oid_valid, new_mode);
 
        diff_queue(&diff_queued_diff, one, two);
 }
@@ -92,7 +89,7 @@ static int builtin_diff_b_f(struct rev_info *revs,
 
        stuff_change(&revs->diffopt,
                     blob[0].mode, canon_mode(st.st_mode),
-                    blob[0].sha1, null_sha1,
+                    &blob[0].oid, &null_oid,
                     1, 0,
                     path, path);
        diffcore_std(&revs->diffopt);
@@ -117,7 +114,7 @@ static int builtin_diff_blobs(struct rev_info *revs,
 
        stuff_change(&revs->diffopt,
                     blob[0].mode, blob[1].mode,
-                    blob[0].sha1, blob[1].sha1,
+                    &blob[0].oid, &blob[1].oid,
                     1, 1,
                     blob[0].name, blob[1].name);
        diffcore_std(&revs->diffopt);
@@ -163,7 +160,7 @@ static int builtin_diff_tree(struct rev_info *revs,
                             struct object_array_entry *ent0,
                             struct object_array_entry *ent1)
 {
-       const unsigned char *(sha1[2]);
+       const struct object_id *(oid[2]);
        int swap = 0;
 
        if (argc > 1)
@@ -175,9 +172,9 @@ static int builtin_diff_tree(struct rev_info *revs,
         */
        if (ent1->item->flags & UNINTERESTING)
                swap = 1;
-       sha1[swap] = ent0->item->oid.hash;
-       sha1[1 - swap] = ent1->item->oid.hash;
-       diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
+       oid[swap] = &ent0->item->oid;
+       oid[1 - swap] = &ent1->item->oid;
+       diff_tree_sha1(oid[0]->hash, oid[1]->hash, "", &revs->diffopt);
        log_tree_diff_flush(revs);
        return 0;
 }
@@ -187,7 +184,7 @@ static int builtin_diff_combined(struct rev_info *revs,
                                 struct object_array_entry *ent,
                                 int ents)
 {
-       struct sha1_array parents = SHA1_ARRAY_INIT;
+       struct oid_array parents = OID_ARRAY_INIT;
        int i;
 
        if (argc > 1)
@@ -196,10 +193,10 @@ static int builtin_diff_combined(struct rev_info *revs,
        if (!revs->dense_combined_merges && !revs->combine_merges)
                revs->dense_combined_merges = revs->combine_merges = 1;
        for (i = 1; i < ents; i++)
-               sha1_array_append(&parents, ent[i].item->oid.hash);
+               oid_array_append(&parents, &ent[i].item->oid);
        diff_tree_combined(ent[0].item->oid.hash, &parents,
                           revs->dense_combined_merges, revs);
-       sha1_array_clear(&parents);
+       oid_array_clear(&parents);
        return 0;
 }
 
@@ -301,20 +298,21 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                        break;
        }
 
-       if (!no_index)
-               prefix = setup_git_directory_gently(&nongit);
+       prefix = setup_git_directory_gently(&nongit);
 
-       /*
-        * Treat git diff with at least one path outside of the
-        * repo the same as if the command would have been executed
-        * outside of a git repository.  In this case it behaves
-        * the same way as "git diff --no-index <a> <b>", which acts
-        * as a colourful "diff" replacement.
-        */
-       if (nongit || ((argc == i + 2) &&
-                      (!path_inside_repo(prefix, argv[i]) ||
-                       !path_inside_repo(prefix, argv[i + 1]))))
-               no_index = DIFF_NO_INDEX_IMPLICIT;
+       if (!no_index) {
+               /*
+                * Treat git diff with at least one path outside of the
+                * repo the same as if the command would have been executed
+                * outside of a git repository.  In this case it behaves
+                * the same way as "git diff --no-index <a> <b>", which acts
+                * as a colourful "diff" replacement.
+                */
+               if (nongit || ((argc == i + 2) &&
+                              (!path_inside_repo(prefix, argv[i]) ||
+                               !path_inside_repo(prefix, argv[i + 1]))))
+                       no_index = DIFF_NO_INDEX_IMPLICIT;
+       }
 
        if (!no_index)
                gitmodules_config();
@@ -383,7 +381,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                                add_head_to_pending(&rev);
                                if (!rev.pending.nr) {
                                        struct tree *tree;
-                                       tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
+                                       tree = lookup_tree(&empty_tree_oid);
                                        add_pending_object(&rev, &tree->object, "HEAD");
                                }
                                break;
@@ -397,7 +395,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                const char *name = entry->name;
                int flags = (obj->flags & UNINTERESTING);
                if (!obj->parsed)
-                       obj = parse_object(obj->oid.hash);
+                       obj = parse_object(&obj->oid);
                obj = deref_tag(obj, NULL, 0);
                if (!obj)
                        die(_("invalid object '%s' given."), name);
@@ -410,7 +408,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                } else if (obj->type == OBJ_BLOB) {
                        if (2 <= blobs)
                                die(_("more than two blobs given: '%s'"), name);
-                       hashcpy(blob[blobs].sha1, obj->oid.hash);
+                       oidcpy(&blob[blobs].oid, &obj->oid);
                        blob[blobs].name = name;
                        blob[blobs].mode = entry->mode;
                        blobs++;