FreeCalypso > hg > tcs211-l1-reconst
annotate g23m/system/busyb/tools/verify_target_file.pl @ 87:33c16c173666
l1_ctl.c: l1ctl_csgc() reconstructed
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
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date | Thu, 07 Apr 2016 02:25:26 +0000 |
parents | 509db1a7b7b8 |
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1 # |
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2 # verify_target_file.pl |
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3 # |
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4 # tool to check for make-like dependency |
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5 # |
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6 # format: verify_target_file.pl temp-file other-dest-file-index other-command other-parameters |
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7 # |
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8 # the intention of this command is to modify conditionally a file, as would it |
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9 # have done by make. since there is no date information, the tool uses the |
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10 # content of the file. |
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11 # |
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12 # the behaviour of this script is somehow specific: |
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13 # - it expects that other-dest-file-index decribes which parameter of |
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14 # other-parameters describes the file to be generated. first parameter is |
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15 # described with 0 etc. other-command is a perl script and will be invoked |
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16 # with "do". |
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17 # - it invokes other-command, but replaces the first parameter with temp-file |
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18 # - it then verifies temp-file against the expected result file (the first |
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19 # parameter). if this file does not exist or is different to temp-file, |
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20 # temp-file is renamed to the first parameter. otherwise (file exists and |
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21 # its content is equal to the content of temp-file), only the temp-file is |
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22 # removed. |
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23 # - since the file is already so special, it brings its own comparison tool, |
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24 # that way there is no need to install anything else, that tool compares |
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25 # text files |
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26 # |
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27 # IMPORTANT: |
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28 # since the used rename does not rename over file system boundaries (at least |
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29 # it is not promised), choose your temp-file accordingly |
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30 # |
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31 |
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32 use strict; |
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33 #use warnings; |
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34 |
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35 my $temp_file = shift; |
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36 my $other_dest_file_index = shift; |
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37 my $other_command = shift; |
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38 my $other_dest_file = $ARGV[$other_dest_file_index]; |
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39 |
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40 # modify command_line |
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41 $ARGV[$other_dest_file_index] = $temp_file; |
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42 |
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43 my $result = do $other_command; |
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44 |
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45 if ((! defined $result) && ($! || $@)) |
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46 { |
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47 die "system $other_command failed: $!\n$@"; |
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48 } |
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49 |
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50 if (! -e $temp_file) |
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51 { |
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52 #something unexpected occured |
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53 die "$temp_file should have been generated"; |
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54 } |
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55 |
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56 if (( ! -e $other_dest_file ) || |
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57 compare_files($other_dest_file, $temp_file) == 0) |
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58 { |
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59 unlink $other_dest_file; |
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60 rename $temp_file, $other_dest_file; |
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61 } |
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62 else |
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63 { |
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64 unlink $temp_file; |
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65 } |
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66 |
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67 sub get_contents_of_file |
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68 { |
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69 my ($filename) = @_; |
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70 |
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71 open(FILE, "<$filename") or die "open failed: $filename"; |
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72 my @lines = <FILE>; |
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73 my $text = join '', @lines; |
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74 close FILE; |
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75 |
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76 $text |
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77 } |
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78 |
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79 sub compare_files |
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80 { |
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81 my ($file1, $file2) = @_; |
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82 |
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83 get_contents_of_file($file1) eq get_contents_of_file($file2) |
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84 } |
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85 |