Add an option not to use link(src, dest) && unlink(src) when that is unreliable

diff --git a/fast-import.c b/fast-import.c
index d5fc042bbfe97080df3e275f069055c63bad32eb..8d959af3b2346a03f737c47d6dd000dfd917f69d 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -1,4 +1,5 @@
 /*
+(See Documentation/git-fast-import.txt for maintained documentation.)
 Format of STDIN stream:
 
   stream ::= cmd*;
@@ -18,8 +19,8 @@ Format of STDIN stream:
 
   new_commit ::= 'commit' sp ref_str lf
     mark?
-    ('author' sp name '<' email '>' when lf)?
-    'committer' sp name '<' email '>' when lf
+    ('author' sp name sp '<' email '>' sp when lf)?
+    'committer' sp name sp '<' email '>' sp when lf
     commit_msg
     ('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
     ('merge' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)*
@@ -43,7 +44,7 @@ Format of STDIN stream:
 
   new_tag ::= 'tag' sp tag_str lf
     'from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf
-    ('tagger' sp name '<' email '>' when lf)?
+    ('tagger' sp name sp '<' email '>' sp when lf)?
     tag_msg;
   tag_msg ::= data;
 
@@ -75,7 +76,7 @@ Format of STDIN stream:
     delim lf;
 
      # note: declen indicates the length of binary_data in bytes.
-     # declen does not include the lf preceeding the binary data.
+     # declen does not include the lf preceding the binary data.
      #
   exact_data ::= 'data' sp declen lf
     binary_data;
@@ -132,8 +133,8 @@ Format of STDIN stream:
      # always escapes the related input from comment processing.
      #
      # In case it is not clear, the '#' that starts the comment
-     # must be the first character on that the line (an lf have
-     # preceeded it).
+     # must be the first character on that line (an lf
+     # preceded it).
      #
   comment ::= '#' not_lf* lf;
   not_lf  ::= # Any byte that is not ASCII newline (LF);
@@ -952,7 +953,7 @@ static void end_packfile(void)
                close(pack_data->pack_fd);
                idx_name = keep_pack(create_index());
 
-               /* Register the packfile with core git's machinary. */
+               /* Register the packfile with core git's machinery. */
                new_p = add_packed_git(idx_name, strlen(idx_name), 1);
                if (!new_p)
                        die("core git rejected index %s", idx_name);
@@ -1742,21 +1743,19 @@ static void parse_data(struct strbuf *sb)
 static int validate_raw_date(const char *src, char *result, int maxlen)
 {
        const char *orig_src = src;
-       char *endp, sign;
-       unsigned long date;
+       char *endp;
 
        errno = 0;
 
-       date = strtoul(src, &endp, 10);
+       strtoul(src, &endp, 10);
        if (errno || endp == src || *endp != ' ')
                return -1;
 
        src = endp + 1;
        if (*src != '-' && *src != '+')
                return -1;
-       sign = *src;
 
-       date = strtoul(src + 1, &endp, 10);
+       strtoul(src + 1, &endp, 10);
        if (errno || endp == src || *endp || (endp - orig_src) >= maxlen)
                return -1;