t3508 (cherry-pick): futureproof against unmerged files

diff --git a/diffcore.h b/diffcore.h
index 713cca785c4b986b5f667086ad43c324f248929c..491bea0b44963461cfce30b07ec96a9005a3c910 100644 (file)
--- a/diffcore.h
+++ b/diffcore.h
@@ -42,6 +42,9 @@ struct diff_filespec {
 #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
        unsigned should_free : 1; /* data should be free()'ed */
        unsigned should_munmap : 1; /* data should be munmap()'ed */
+       unsigned dirty_submodule : 2;  /* For submodules: its work tree is dirty */
+#define DIRTY_SUBMODULE_UNTRACKED 1
+#define DIRTY_SUBMODULE_MODIFIED  2
 
        struct userdiff_driver *driver;
        /* data should be considered "binary"; -1 means "don't know yet" */
@@ -62,7 +65,7 @@ struct diff_filepair {
        struct diff_filespec *one;
        struct diff_filespec *two;
        unsigned short int score;
-       char status; /* M C R N D U (see Documentation/diff-format.txt) */
+       char status; /* M C R A D U etc. (see Documentation/diff-format.txt or DIFF_STATUS_* in diff.h) */
        unsigned broken_pair : 1;
        unsigned renamed_pair : 1;
        unsigned is_unmerged : 1;
@@ -88,7 +91,14 @@ struct diff_queue_struct {
        struct diff_filepair **queue;
        int alloc;
        int nr;
+       int run;
 };
+#define DIFF_QUEUE_CLEAR(q) \
+       do { \
+               (q)->queue = NULL; \
+               (q)->nr = (q)->alloc = 0; \
+               (q)->run = 0; \
+       } while(0);
 
 extern struct diff_queue_struct diff_queued_diff;
 extern struct diff_filepair *diff_queue(struct diff_queue_struct *,