On Tue, 2012-09-04 at 22:26 -0600, Ken Dreyer wrote:
> When importing CVS tags, strip all the inappropriate strings from the
> tag names as we translate them to git tag names.
>
> [snip]
> diff --git a/git-cvsimport.perl b/git-cvsimport.perl
> index 8d41610..0dc598d 100755
> --- a/git-cvsimport.perl
> +++ b/git-cvsimport.perl
> @@ -889,7 +889,25 @@ sub commit {
> $xtag =~ s/\s+\*\*.*$//; # Remove stuff like ** INVALID ** and
> ** FUNKY **
> $xtag =~ tr/_/\./ if ( $opt_u );
> $xtag =~ s/[\/]/$opt_s/g;
> - $xtag =~ s/\[//g;
> +
> + # See ref.c for these rules.
> + # Tag cannot end with a '/' - this is already handled above.
> + # Tag cannot contain bad chars. See bad_ref_char in ref.c.
> + $xtag =~ s/[ ~\^:\\\*\?\[]//g;
> + # Tag cannot contain '..'.
> + $xtag =~ s/\.\.//g;
> + # Tag cannot contain '@{'.
> + $xtag =~ s/\@{//g;
> + # Tag cannot end with '.lock'.
> + $xtag =~ s/(?:\.lock)+$//;
> + # Tag cannot begin or end with '.'.
> + $xtag =~ s/^\.+//;
> + $xtag =~ s/\.+$//;
> + # Tag cannot consist of a single '.' - already handled above.
> + # Tag cannot be empty.
> + if ($xtag eq '') {
> + return;
> + }
Unfortunately, this isn't quite sufficient. Consider the case of a tag
named "foo.lock." The .lock rule doesn't match, because it's not at the
end of the string -- but after s/\.+$// runs, it _is_ at the end, and
hence invalid. A similar problem exists with a tag named "a.@{.b",
given the ordering of @{ and .. removal.
Something like the following would suffice:
1 while $xtag =~ s/
(?: \.\. # Tag cannot contain '..'.
| \@{ # Tag cannot contain '@{'.
| \.lock $ # Tag cannot end with '.lock'.
| ^ \. # Tag cannot begin...
| \. $ # ...or end with '.'
)//xg;
- Alex
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