filter-branch documentation: some more touch-ups.

diff --git a/cache-tree.c b/cache-tree.c
index 323c68a6709f30312e0dfb0fd60fcd7e69cd710b..077f03436941e9c0bf31d3bb2002c1e36b8817b9 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -2,7 +2,9 @@
 #include "tree.h"
 #include "cache-tree.h"
 
+#ifndef DEBUG
 #define DEBUG 0
+#endif
 
 struct cache_tree *cache_tree(void)
 {
@@ -280,6 +282,8 @@ static int update_one(struct cache_tree *it,
                                    baselen + sublen + 1,
                                    missing_ok,
                                    dryrun);
+               if (subcnt < 0)
+                       return subcnt;
                i += subcnt - 1;
                sub->used = 1;
        }
@@ -322,7 +326,7 @@ static int update_one(struct cache_tree *it,
                        mode = ntohl(ce->ce_mode);
                        entlen = pathlen - baselen;
                }
-               if (!missing_ok && !has_sha1_file(sha1))
+               if (mode != S_IFGITLINK && !missing_ok && !has_sha1_file(sha1))
                        return error("invalid object %s", sha1_to_hex(sha1));
 
                if (!ce->ce_mode)
@@ -344,12 +348,8 @@ static int update_one(struct cache_tree *it,
 #endif
        }
 
-       if (dryrun) {
-               unsigned char hdr[200];
-               int hdrlen;
-               write_sha1_file_prepare(buffer, offset, tree_type, it->sha1,
-                                       hdr, &hdrlen);
-       }
+       if (dryrun)
+               hash_sha1_file(buffer, offset, tree_type, it->sha1);
        else
                write_sha1_file(buffer, offset, tree_type, it->sha1);
        free(buffer);
@@ -478,7 +478,7 @@ static struct cache_tree *read_one(const char **buffer, unsigned long *size_p)
        if (0 <= it->entry_count) {
                if (size < 20)
                        goto free_return;
-               hashcpy(it->sha1, (unsigned char*)buf);
+               hashcpy(it->sha1, (const unsigned char*)buf);
                buf += 20;
                size -= 20;
        }