2 # ABSTRACT: Check the correct line endings in your project
12 use vars qw( $PERL $UNTAINT_PATTERN $PERL_PATTERN);
14 $PERL = $^X || 'perl';
15 $UNTAINT_PATTERN = qr|^([-+@\w./:\\]+)$|;
16 $PERL_PATTERN = qr/^#!.*perl/;
18 my %file_find_arg = ($] <= 5.006) ? () : (
20 untaint_pattern => $UNTAINT_PATTERN,
24 my $Test = Test::Builder->new;
25 my $updir = File::Spec->updir();
32 *{$caller.'::eol_unix_ok'} = \&eol_unix_ok;
33 *{$caller.'::all_perl_files_ok'} = \&all_perl_files_ok;
35 $Test->exported_to($caller);
40 my @all_files = _all_files(@_);
41 return grep { _is_perl_module($_) || _is_perl_script($_) } @all_files;
45 my @base_dirs = @_ ? @_ : cwd();
46 my $options = pop(@base_dirs) if ref $base_dirs[-1] eq 'HASH';
49 return if ($File::Find::dir =~ m![\\/]?CVS[\\/]|[\\/]?\.svn[\\/]!); # Filter out cvs or subversion dirs/
50 return if ($File::Find::dir =~ m![\\/]?blib[\\/]libdoc$!); # Filter out pod doc in dist
51 return if ($File::Find::dir =~ m![\\/]?blib[\\/]man\d$!); # Filter out pod doc in dist
52 return if ($File::Find::dir =~ m![\\/]?inc!); # Filter out Module::Install stuff
53 return if ($File::Find::name =~ m!Build$!i); # Filter out autogenerated Build script
54 return unless (-f $File::Find::name && -r _);
55 push @found, File::Spec->no_upwards( $File::Find::name );
62 find( $find_arg, @base_dirs);
66 # Formats various human invisible symbols
67 # to similar visible ones.
68 # Perhaps ^M or something like that
69 # would be more appropriate?
71 sub _show_whitespace {
73 $string =~ s/\r/[\\r]/g;
74 $string =~ s/\t/[\\t]/g;
75 $string =~ s/ /[\\s]/g;
79 # Format a line record for diagnostics.
82 my ( $options, $line ) = @_;
83 $line->[2] =~ s/\n\z//g;
84 return "line $line->[1]: $line->[0] " . (
85 $options->{show_lines} ? qq{: } . _show_whitespace( $line->[2] ) : q{}
92 $test_txt = shift if !ref $_[0];
93 $test_txt ||= "No incorrect line endings in '$file'";
94 my $options = shift if ref $_[0] eq 'HASH';
96 trailing_whitespace => 0,
99 $file = _module_to_path($file);
101 open my $fh, $file or do { $Test->ok(0, $test_txt); $Test->diag("Could not open $file: $!"); return; };
102 # Windows-- , default is :crlf, which hides \r\n -_-
103 binmode( $fh, ':raw' );
108 if ( !$options->{trailing_whitespace} && /(\r+)$/ ) {
110 push @fails, [ _show_whitespace( $match ) , $line , $_ ];
112 if ( $options->{trailing_whitespace} && /([ \t]*\r+|[ \t]+)$/ ) {
114 push @fails, [ _show_whitespace($match), $line , $_ ];
116 # Minor short-circuit for people who don't need the whole file scanned
117 # once there's an err.
118 last if( @fails > 0 && !$options->{all_reasons} );
121 $Test->ok( 0, $test_txt . " on " . _debug_line({ show_lines => 0 } , $fails[0] ) );
122 if ( $options->{all_reasons} || 1 ){
123 $Test->diag( " Problem Lines: ");
125 $Test->diag(_debug_line({ show_lines => 1 } , $_ ) );
130 $Test->ok(1, $test_txt);
133 sub all_perl_files_ok {
134 my $options = shift if ref $_[0] eq 'HASH';
135 my @files = _all_perl_files( @_ );
137 foreach my $file ( @files ) {
138 eol_unix_ok($file, $options);
142 sub _is_perl_module {
143 $_[0] =~ /\.pm$/i || $_[0] =~ /::/;
146 sub _is_perl_script {
148 return 1 if $file =~ /\.pl$/i;
149 return 1 if $file =~ /\.t$/;
150 open (my $fh, $file) or return;
152 return 1 if defined $first && ($first =~ $PERL_PATTERN);
156 sub _module_to_path {
158 return $file unless ($file =~ /::/);
159 my @parts = split /::/, $file;
160 my $module = File::Spec->catfile(@parts) . '.pm';
161 foreach my $dir (@INC) {
162 my $candidate = File::Spec->catfile($dir, $module);
163 next unless (-e $candidate && -f _ && -r _);
170 unless ($Test->has_plan) {
171 $Test->plan( 'no_plan' );
173 $Test->expected_tests;
177 my @untainted = map { ($_ =~ $UNTAINT_PATTERN) } @_;
178 return wantarray ? @untainted : $untainted[0];
185 C<Test::EOL> lets you check for the presence of trailing whitespace and/or
186 windows line endings in your perl code. It reports its results in standard
187 C<Test::Simple> fashion:
189 use Test::EOL tests => 1;
190 eol_unix_ok( 'lib/Module.pm', 'Module is ^M free');
192 and to add checks for trailing whitespace:
194 use Test::EOL tests => 1;
195 eol_unix_ok( 'lib/Module.pm', 'Module is ^M and trailing whitespace free', { trailing_whitespace => 1 });
197 Module authors can include the following in a t/eol.t and have C<Test::EOL>
198 automatically find and check all perl files in a module distribution:
206 all_perl_files_ok( @mydirs );
208 and if authors would like to check for trailing whitespace:
211 all_perl_files_ok({ trailing_whitespace => 1 });
216 all_perl_files_ok({ trailing_whitespace => 1 }, @mydirs );
220 This module scans your project/distribution for any perl files (scripts,
221 modules, etc) for the presence of windows line endings.
225 A list of functions that can be exported. You can delete this section
226 if you don't export anything, such as for a purely object-oriented module.
228 =func all_perl_files_ok
230 all_perl_files_ok( [ \%options ], [ @directories ] )
232 Applies C<eol_unix_ok()> to all perl files found in C<@directories> (and sub
233 directories). If no <@directories> is given, the starting point is one level
234 above the current running script, that should cover all the files of a typical
235 CPAN distribution. A perl file is *.pl or *.pm or *.t or a file starting
238 Valid C<\%options> currently are:
242 =item * trailing_whitespace
244 By default Test::EOL only looks for Windows (CR/LF) line-endings. Set this
245 to true to raise errors if any kind of trailing whitespace is present in
250 Normally Test::EOL reports only the first error in every file (given that
251 a text file originated on Windows will fail every single line). Set this
252 a true value to register a test failure for every line with an error.
256 If the test plan is defined:
258 use Test::EOL tests => 3;
261 the total number of files tested must be specified.
265 eol_unix_ok ( $file [, $text] [, \%options ] )
267 Run a unix EOL check on C<$file>. For a module, the path (lib/My/Module.pm) or the
268 name (My::Module) can be both used. C<$text> is the diagnostic label emited after
269 the C<ok>/C<not ok> TAP output. C<\%options> takes the same values as described in
270 L</all_perl_files_ok>.
272 =head1 ACKNOWLEDGEMENTS
274 Shamelessly ripped off from L<Test::NoTabs>.
278 L<Test::More>, L<Test::Pod>. L<Test::Distribution>, L<Test:NoWarnings>,
279 L<Test::NoTabs>, L<Module::Install::AuthorTests>.