diffcore-rename.c: avoid set-but-not-used warning

diff --git a/merge-recursive.c b/merge-recursive.c
index 8e82a8b1a5ab8a2f5af00910a8febda93b9e420d..fb3c874ff47c949dc8df89edb320accf90bc8ac9 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -22,11 +22,6 @@
 #include "dir.h"
 #include "submodule.h"
 
-static const char rename_limit_advice[] =
-"inexact rename detection was skipped because there were too many\n"
-"  files. You may want to set your merge.renamelimit variable to at least\n"
-"  %d and retry this merge.";
-
 static struct tree *shift_tree_object(struct tree *one, struct tree *two,
                                      const char *subtree_shift)
 {
@@ -344,10 +339,11 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
         * make room for the corresponding directory.  Such paths will
         * later be processed in process_df_entry() at the end.  If
         * the corresponding directory ends up being removed by the
-        * merge, then the file will be reinstated at that time;
-        * otherwise, if the file is not supposed to be removed by the
-        * merge, the contents of the file will be placed in another
-        * unique filename.
+        * merge, then the file will be reinstated at that time
+        * (albeit with a different timestamp!); otherwise, if the
+        * file is not supposed to be removed by the merge, the
+        * contents of the file will be placed in another unique
+        * filename.
         *
         * NOTE: This function relies on the fact that entries for a
         * D/F conflict will appear adjacent in the index, with the
@@ -356,9 +352,15 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
         */
        const char *last_file = NULL;
        int last_len = 0;
-       struct stage_data *last_e;
        int i;
 
+       /*
+        * Do not do any of this crazyness during the recursive; we don't
+        * even write anything to the working tree!
+        */
+       if (o->call_depth)
+               return;
+
        for (i = 0; i < entries->nr; i++) {
                const char *path = entries->items[i].string;
                int len = strlen(path);
@@ -386,7 +388,6 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
                if (S_ISREG(e->stages[2].mode) || S_ISLNK(e->stages[2].mode)) {
                        last_file = path;
                        last_len = len;
-                       last_e = e;
                } else {
                        last_file = NULL;
                }
@@ -961,7 +962,6 @@ static int process_renames(struct merge_options *o,
        }
 
        for (i = 0, j = 0; i < a_renames->nr || j < b_renames->nr;) {
-               char *src;
                struct string_list *renames1, *renames2Dst;
                struct rename *ren1 = NULL, *ren2 = NULL;
                const char *branch1, *branch2;
@@ -996,7 +996,6 @@ static int process_renames(struct merge_options *o,
                        ren2 = ren1;
                        ren1 = tmp;
                }
-               src = ren1->pair->one->path;
 
                ren1->dst_entry->processed = 1;
                ren1->src_entry->processed = 1;
@@ -1264,9 +1263,13 @@ static int merge_content(struct merge_options *o,
        }
 
        if (mfi.clean && !df_conflict_remains &&
-           sha_eq(mfi.sha, a_sha) && mfi.mode == a.mode)
+           sha_eq(mfi.sha, a_sha) && mfi.mode == a.mode &&
+           !o->call_depth && !lstat(path, &st)) {
                output(o, 3, "Skipped %s (merged same as existing)", path);
-       else
+               add_cacheinfo(mfi.mode, mfi.sha, path,
+                             0 /*stage*/, 1 /*refresh*/, 0 /*options*/);
+               return mfi.clean;
+       } else
                output(o, 2, "Auto-merging %s", path);
 
        if (!mfi.clean) {
@@ -1656,8 +1659,9 @@ int merge_recursive(struct merge_options *o,
                commit_list_insert(h2, &(*result)->parents->next);
        }
        flush_output(o);
-       if (o->needed_rename_limit)
-               warning(rename_limit_advice, o->needed_rename_limit);
+       if (show(o, 2))
+               diff_warn_rename_limit("merge.renamelimit",
+                                      o->needed_rename_limit, 0);
        return clean;
 }