Expose subprojects as special files to "git diff" machinery

diff --git a/diff-lib.c b/diff-lib.c
index f9a1a10cc0319270358d658cd5e83bd5633fbf49..c6d127346ab38b3b73285f61d2dc6874ab1dc7ac 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -324,6 +324,9 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                struct cache_entry *ce = active_cache[i];
                int changed;
 
+               if (revs->diffopt.quiet && revs->diffopt.has_changes)
+                       break;
+
                if (!ce_path_match(ce, revs->prune_data))
                        continue;
 
@@ -354,7 +357,7 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                                        continue;
                        }
                        else
-                               dpath->mode = canon_mode(st.st_mode);
+                               dpath->mode = ntohl(ce_mode_from_stat(ce, st.st_mode));
 
                        while (i < entries) {
                                struct cache_entry *nce = active_cache[i];
@@ -371,8 +374,7 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                                        int mode = ntohl(nce->ce_mode);
                                        num_compare_stages++;
                                        hashcpy(dpath->parent[stage-2].sha1, nce->sha1);
-                                       dpath->parent[stage-2].mode =
-                                               canon_mode(mode);
+                                       dpath->parent[stage-2].mode = ntohl(ce_mode_from_stat(nce, mode));
                                        dpath->parent[stage-2].status =
                                                DIFF_STATUS_MODIFIED;
                                }
@@ -421,15 +423,7 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                if (!changed && !revs->diffopt.find_copies_harder)
                        continue;
                oldmode = ntohl(ce->ce_mode);
-
-               newmode = canon_mode(st.st_mode);
-               if (!trust_executable_bit &&
-                   S_ISREG(newmode) && S_ISREG(oldmode) &&
-                   ((newmode ^ oldmode) == 0111))
-                       newmode = oldmode;
-               else if (!has_symlinks &&
-                   S_ISREG(newmode) && S_ISLNK(oldmode))
-                       newmode = oldmode;
+               newmode = ntohl(ce_mode_from_stat(ce, st.st_mode));
                diff_change(&revs->diffopt, oldmode, newmode,
                            ce->sha1, (changed ? null_sha1 : ce->sha1),
                            ce->name, NULL);
@@ -565,6 +559,9 @@ static int diff_cache(struct rev_info *revs,
                struct cache_entry *ce = *ac;
                int same = (entries > 1) && ce_same_name(ce, ac[1]);
 
+               if (revs->diffopt.quiet && revs->diffopt.has_changes)
+                       break;
+
                if (!ce_path_match(ce, pathspec))
                        goto skip_entry;