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SubjectRe: regression: checkpatch.pl fails when called via symlink
Date
On Wed, 22 Oct 2014, Joe Perches <joe@perches.com> wrote:
> On Wed, 2014-10-22 at 16:25 +0300, Jani Nikula wrote:
>> On Wed, 22 Oct 2014, Joe Perches <joe@perches.com> wrote:
>> > On Wed, 2014-10-22 at 13:43 +0300, Jani Nikula wrote:
>> >> Since commit 66b47b4a9dad00e45c049d79966de9a3a1f4d337
>> >> Author: Kees Cook <keescook@chromium.org>
>> >> Date: Mon Oct 13 15:51:57 2014 -0700
>> >> checkpatch: look for common misspellings
>> >> checkpatch.pl dies with
>> >> checkpatch.pl: Can't open /path/to/spelling.txt for reading: No such file or directory
>> >>
>> >> if it's called through a symlink in /path/to/checkpatch.pl pointing at
>> >> the actual script.
>> >>
>> >> Please fail graciously, and just ignore spelling if you can't find
>> >> spelling.txt. Or better yet, follow the links if you can.
>> >
>> > I agree it should fail better, but I'm also curious.
>> > Why you want to use a symlink?
>>
>> Simply because I think having $HOME/bin in $PATH and a symlink there is
>> better than the alternatives.
> []
>> Reference: http://xkcd.com/1172/
>
> :)
>
> Try this:

Tested-by: Jani Nikula <jani.nikula@intel.com>

Thanks,
Jani.


>
> scripts/checkpatch.pl | 38 +++++++++++++++++++++-----------------
> 1 file changed, 21 insertions(+), 17 deletions(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index d94f5d8..a6354ec 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -7,10 +7,11 @@
>
> use strict;
> use POSIX;
> +use File::Basename;
> +use Cwd 'abs_path';
>
> my $P = $0;
> -$P =~ s@(.*)/@@g;
> -my $D = $1;
> +my $D = dirname(abs_path($P));
>
> my $V = '0.32';
>
> @@ -438,26 +439,29 @@ our $allowed_asm_includes = qr{(?x:
>
> # Load common spelling mistakes and build regular expression list.
> my $misspellings;
> -my @spelling_list;
> my %spelling_fix;
> -open(my $spelling, '<', $spelling_file)
> - or die "$P: Can't open $spelling_file for reading: $!\n";
> -while (<$spelling>) {
> - my $line = $_;
>
> - $line =~ s/\s*\n?$//g;
> - $line =~ s/^\s*//g;
> +if (open(my $spelling, '<', $spelling_file)) {
> + my @spelling_list;
> + while (<$spelling>) {
> + my $line = $_;
>
> - next if ($line =~ m/^\s*#/);
> - next if ($line =~ m/^\s*$/);
> + $line =~ s/\s*\n?$//g;
> + $line =~ s/^\s*//g;
>
> - my ($suspect, $fix) = split(/\|\|/, $line);
> + next if ($line =~ m/^\s*#/);
> + next if ($line =~ m/^\s*$/);
> +
> + my ($suspect, $fix) = split(/\|\|/, $line);
>
> - push(@spelling_list, $suspect);
> - $spelling_fix{$suspect} = $fix;
> + push(@spelling_list, $suspect);
> + $spelling_fix{$suspect} = $fix;
> + }
> + close($spelling);
> + $misspellings = join("|", @spelling_list);
> +} else {
> + warn "No typos will be found - file '$spelling_file': $!\n";
> }
> -close($spelling);
> -$misspellings = join("|", @spelling_list);
>
> sub build_types {
> my $mods = "(?x: \n" . join("|\n ", @modifierList) . "\n)";
> @@ -2246,7 +2250,7 @@ sub process {
> }
>
> # Check for various typo / spelling mistakes
> - if ($in_commit_log || $line =~ /^\+/) {
> + if (defined($misspellings) && ($in_commit_log || $line =~ /^\+/)) {
> while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:$|[^a-z@])/gi) {
> my $typo = $1;
> my $typo_fix = $spelling_fix{lc($typo)};
>
>

--
Jani Nikula, Intel Open Source Technology Center


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