Treat D/F conflict entry more carefully in unpack-trees.c::threeway_merge()

diff --git a/lockfile.c b/lockfile.c
index 731bbf3c9c312687714d19391e6e02ffde8eaebd..bed6b21daf302c76cb87bb99b613f168df9899e1 100644 (file)
--- a/lockfile.c
+++ b/lockfile.c
@@ -4,6 +4,7 @@
 #include "cache.h"
 
 static struct lock_file *lock_file_list;
+static const char *alternate_index_output;
 
 static void remove_lock_file(void)
 {
@@ -49,7 +50,7 @@ int hold_lock_file_for_update(struct lock_file *lk, const char *path, int die_on
 {
        int fd = lock_file(lk, path);
        if (fd < 0 && die_on_error)
-               die("unable to create '%s': %s", path, strerror(errno));
+               die("unable to create '%s.lock': %s", path, strerror(errno));
        return fd;
 }
 
@@ -65,6 +66,27 @@ int commit_lock_file(struct lock_file *lk)
        return i;
 }
 
+int hold_locked_index(struct lock_file *lk, int die_on_error)
+{
+       return hold_lock_file_for_update(lk, get_index_file(), die_on_error);
+}
+
+void set_alternate_index_output(const char *name)
+{
+       alternate_index_output = name;
+}
+
+int commit_locked_index(struct lock_file *lk)
+{
+       if (alternate_index_output) {
+               int result = rename(lk->filename, alternate_index_output);
+               lk->filename[0] = 0;
+               return result;
+       }
+       else
+               return commit_lock_file(lk);
+}
+
 void rollback_lock_file(struct lock_file *lk)
 {
        if (lk->filename[0])