git-commit: document --amend

diff --git a/write-tree.c b/write-tree.c
index 2b2c6b77afd53870423d4bad9191ed669bc55660..dcad6e66708f7cf9cae682da6a9a22086381ecec 100644 (file)
--- a/write-tree.c
+++ b/write-tree.c
@@ -4,6 +4,7 @@
  * Copyright (C) Linus Torvalds, 2005
  */
 #include "cache.h"
+#include "tree.h"
 
 static int missing_ok = 0;
 
@@ -78,22 +79,27 @@ static int write_tree(struct cache_entry **cachep, int maxentries, const char *b
                nr++;
        }
 
-       write_sha1_file(buffer, offset, "tree", returnsha1);
+       write_sha1_file(buffer, offset, tree_type, returnsha1);
        free(buffer);
        return nr;
 }
 
+static const char write_tree_usage[] = "git-write-tree [--missing-ok]";
+
 int main(int argc, char **argv)
 {
        int i, funny;
-       int entries = read_cache();
+       int entries;
        unsigned char sha1[20];
        
+       setup_git_directory();
+
+       entries = read_cache();
        if (argc == 2) {
                if (!strcmp(argv[1], "--missing-ok"))
                        missing_ok = 1;
                else
-                       die("unknown option %s", argv[1]);
+                       die(write_tree_usage);
        }
        
        if (argc > 2)
@@ -106,7 +112,7 @@ int main(int argc, char **argv)
        funny = 0;
        for (i = 0; i < entries; i++) {
                struct cache_entry *ce = active_cache[i];
-               if (ntohs(ce->ce_flags) & ~CE_NAMEMASK) {
+               if (ce_stage(ce)) {
                        if (10 < ++funny) {
                                fprintf(stderr, "...\n");
                                break;