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1 #!/usr/bin/perl -w
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2 #
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3 # Test that none of our scripts contain any literal TAB characters.
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4 #
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5 # Steve
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6 # --
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7
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8
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9 use strict;
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10 use File::Find;
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11 use Test::More qw( no_plan );
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12
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13
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14 #
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15 # Find all the files beneath the current directory,
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16 # and call 'checkFile' with the name.
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17 #
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18 find( { wanted => \&checkFile, no_chdir => 1 }, '.' );
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19
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20
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21
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22 #
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23 # Check a file.
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24 #
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25 #
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26 sub checkFile
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27 {
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28 # The file.
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29 my $file = $File::Find::name;
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30
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31 # We don't care about directories
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32 return if ( ! -f $file );
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33
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34 # Nor about backup files.
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35 return if ( $file =~ /~$/ );
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36
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37 # Nor about files which start with ./debian/
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38 return if ( $file =~ /^\.\/debian\// );
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39
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40 # See if it is a shell/perl file.
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41 my $isShell = 0;
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42 my $isPerl = 0;
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43
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44 # Read the file.
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45 open( INPUT, "<", $file );
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46 foreach my $line ( <INPUT> )
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47 {
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48 if ( ( $line =~ /\/bin\/sh/ ) ||
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49 ( $line =~ /\/bin\/bash/ ) )
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50 {
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51 $isShell = 1;
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52 }
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53 if ( $line =~ /\/usr\/bin\/perl/ )
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54 {
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55 $isPerl = 1;
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56 }
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57 }
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58 close( INPUT );
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59
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60 #
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61 # We don't care about files which are neither perl nor shell.
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62 #
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63 if ( $isShell || $isPerl )
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64 {
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65 #
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66 # Count TAB characters
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67 #
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68 my $count = countTabCharacters( $file );
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69
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70 is( $count, 0, "Script has no tab characters: $file" );
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71 }
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72 }
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73
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74
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75
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76 #
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77 # Count and return the number of literal TAB characters contained
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78 # in the specified file.
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79 #
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80 sub countTabCharacters
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81 {
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82 my ( $file ) = (@_);
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83 my $count = 0;
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84
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85 open( FILE, "<", $file )
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86 or die "Cannot open $file - $!";
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87 foreach my $line ( <FILE> )
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88 {
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89 # We will count multiple tab characters in a single line.
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90 while( $line =~ /(.*)\t(.*)/ )
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91 {
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92 $count += 1;
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93 $line = $1 . $2;
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94 }
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95 }
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96 close( FILE );
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97
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98 return( $count );
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99 }
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