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 $updir = File::Spec->updir();
34 *{$caller.'::eol_unix_ok'} = \&eol_unix_ok;
35 *{$caller.'::all_perl_files_ok'} = \&all_perl_files_ok;
37 $Test->exported_to($caller);
39 if ($_[0] && $_[0] eq 'no_plan') {
47 my @all_files = _all_files(@_);
48 return grep { _is_perl_module($_) || _is_perl_script($_) } @all_files;
52 my @base_dirs = @_ ? @_ : cwd();
53 my $options = pop(@base_dirs) if ref $base_dirs[-1] eq 'HASH';
56 return if ($File::Find::dir =~ m![\\/]?CVS[\\/]|[\\/]?\.svn[\\/]!); # Filter out cvs or subversion dirs/
57 return if ($File::Find::dir =~ m![\\/]?blib[\\/]libdoc$!); # Filter out pod doc in dist
58 return if ($File::Find::dir =~ m![\\/]?blib[\\/]man\d$!); # Filter out pod doc in dist
59 return if ($File::Find::dir =~ m![\\/]?inc!); # Filter out Module::Install stuff
60 return if ($File::Find::name =~ m!Build$!i); # Filter out autogenerated Build script
61 return unless (-f $File::Find::name && -r _);
62 push @found, File::Spec->no_upwards( $File::Find::name );
69 find( $find_arg, @base_dirs);
73 # Formats various human invisible symbols
74 # to similar visible ones.
75 # Perhaps ^M or something like that
76 # would be more appropriate?
78 sub _show_whitespace {
80 $string =~ s/\r/[\\r]/g;
81 $string =~ s/\t/[\\t]/g;
82 $string =~ s/ /[\\s]/g;
86 # Format a line record for diagnostics.
89 my ( $options, $line ) = @_;
90 $line->[2] =~ s/\n\z//g;
91 return "line $line->[1]: $line->[0] " . (
92 $options->{show_lines} ? qq{: } . _show_whitespace( $line->[2] ) : q{}
99 $test_txt = shift if !ref $_[0];
100 $test_txt ||= "No incorrect line endings in '$file'";
101 my $options = shift if ref $_[0] eq 'HASH';
103 trailing_whitespace => 0,
106 $file = _module_to_path($file);
108 open my $fh, $file or do { $Test->ok(0, $test_txt); $Test->diag("Could not open $file: $!"); return; };
109 # Windows-- , default is :crlf, which hides \r\n -_-
110 binmode( $fh, ':raw' );
115 if ( !$options->{trailing_whitespace} && /(\r+)$/ ) {
117 push @fails, [ _show_whitespace( $match ) , $line , $_ ];
119 if ( $options->{trailing_whitespace} && /([ \t]*\r+|[ \t]+)$/ ) {
121 push @fails, [ _show_whitespace($match), $line , $_ ];
123 # Minor short-circuit for people who don't need the whole file scanned
124 # once there's an err.
125 last if( @fails > 0 && !$options->{all_reasons} );
128 $Test->ok( 0, $test_txt . " on " . _debug_line({ show_lines => 0 } , $fails[0] ) );
129 if ( $options->{all_reasons} || 1 ){
130 $Test->diag( " Problem Lines: ");
132 $Test->diag(_debug_line({ show_lines => 1 } , $_ ) );
137 $Test->ok(1, $test_txt);
140 sub all_perl_files_ok {
141 my $options = shift if ref $_[0] eq 'HASH';
142 my @files = _all_perl_files( @_ );
144 foreach my $file ( @files ) {
145 eol_unix_ok($file, $options);
149 sub _is_perl_module {
150 $_[0] =~ /\.pm$/i || $_[0] =~ /::/;
153 sub _is_perl_script {
155 return 1 if $file =~ /\.pl$/i;
156 return 1 if $file =~ /\.t$/;
157 open (my $fh, $file) or return;
159 return 1 if defined $first && ($first =~ $PERL_PATTERN);
163 sub _module_to_path {
165 return $file unless ($file =~ /::/);
166 my @parts = split /::/, $file;
167 my $module = File::Spec->catfile(@parts) . '.pm';
168 foreach my $dir (@INC) {
169 my $candidate = File::Spec->catfile($dir, $module);
170 next unless (-e $candidate && -f _ && -r _);
178 unless ($Test->has_plan) {
179 $Test->plan( 'no_plan' );
181 $Test->expected_tests;
185 my @untainted = map { ($_ =~ $UNTAINT_PATTERN) } @_;
186 return wantarray ? @untainted : $untainted[0];
193 C<Test::EOL> lets you check for the presence of trailing whitespace and/or
194 windows line endings in your perl code. It reports its results in standard
195 C<Test::Simple> fashion:
197 use Test::EOL tests => 1;
198 eol_unix_ok( 'lib/Module.pm', 'Module is ^M free');
200 and to add checks for trailing whitespace:
202 use Test::EOL tests => 1;
203 eol_unix_ok( 'lib/Module.pm', 'Module is ^M and trailing whitespace free', { trailing_whitespace => 1 });
205 Module authors can include the following in a t/eol.t and have C<Test::EOL>
206 automatically find and check all perl files in a module distribution:
214 all_perl_files_ok( @mydirs );
216 and if authors would like to check for trailing whitespace:
219 all_perl_files_ok({ trailing_whitespace => 1 });
224 all_perl_files_ok({ trailing_whitespace => 1 }, @mydirs );
229 use Test::EOL 'no_test';
235 This module scans your project/distribution for any perl files (scripts,
236 modules, etc) for the presence of windows line endings.
240 A list of functions that can be exported. You can delete this section
241 if you don't export anything, such as for a purely object-oriented module.
243 =func all_perl_files_ok
245 all_perl_files_ok( [ \%options ], [ @directories ] )
247 Applies C<eol_unix_ok()> to all perl files found in C<@directories> (and sub
248 directories). If no <@directories> is given, the starting point is one level
249 above the current running script, that should cover all the files of a typical
250 CPAN distribution. A perl file is *.pl or *.pm or *.t or a file starting
253 Valid C<\%options> currently are:
257 =item * trailing_whitespace
259 By default Test::EOL only looks for Windows (CR/LF) line-endings. Set this
260 to true to raise errors if any kind of trailing whitespace is present in
265 Normally Test::EOL reports only the first error in every file (given that
266 a text file originated on Windows will fail every single line). Set this
267 a true value to register a test failure for every line with an error.
271 If the test plan is defined:
273 use Test::EOL tests => 3;
276 the total number of files tested must be specified.
280 eol_unix_ok ( $file [, $text] [, \%options ] )
282 Run a unix EOL check on C<$file>. For a module, the path (lib/My/Module.pm) or the
283 name (My::Module) can be both used. C<$text> is the diagnostic label emited after
284 the C<ok>/C<not ok> TAP output. C<\%options> takes the same values as described in
285 L</all_perl_files_ok>.
287 =head1 ACKNOWLEDGEMENTS
289 Shamelessly ripped off from L<Test::NoTabs>.
293 L<Test::More>, L<Test::Pod>. L<Test::Distribution>, L<Test:NoWarnings>,
294 L<Test::NoTabs>, L<Module::Install::AuthorTests>.