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comparison g23m/system/busyb/tools/verify_target_folder.pl @ 0:509db1a7b7b8

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initial import: leo2moko-r1
author Space Falcon <falcon@ivan.Harhan.ORG>
date Mon, 01 Jun 2015 03:24:05 +0000
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-1:000000000000 0:509db1a7b7b8
1 #
2 # verify_target_folder.pl
3 #
4 # tool to check for make-like dependency
5 #
6 # format: verify_target_folder.pl temp-folder other-command other-parameters
7 #
8 # the intention of this command is to modify conditionally a group of files,
9 # as would it have done by make. since there is no date information, the tool
10 # uses the contents of the files.
11 #
12 # the behaviour of this script is somehow specific:
13 # - it expects that the first parameter of other-parameters is a folder, where
14 # files will be generated. other-command is a perl script and will be invoked
15 # with "do".
16 # - it generates temp-folder
17 # - it invokes other-command, but replaces the first parameter with temp-folder
18 # - it then verifies temp-folder against the expected result folder (the first
19 # parameter). therefor it compares all existing files in temp-folder with
20 # equally named files in the other folder. differnt or not existing files
21 # in the other folder are replaced by the temp-folder variants.
22 # - since the file is already so special, it brings its own comparison tool,
23 # that way there is no need to install anything else, that tool compares
24 # text files
25 #
26 # IMPORTANT:
27 # since the used rename does not rename over file system boundaries (at least
28 # it is not promised), choose your temp-folder accordingly
29 #
30
31 use strict;
32 #use warnings;
33
34 my $temp_folder = shift;
35 my $other_command = shift;
36 my $other_dest_folder = $ARGV[0];
37
38 # normalize $temp_folder
39 $temp_folder =~ s|\\|/|g; # only slashes, please
40 $temp_folder =~ s|/$||; # no slash at end of path
41
42 # modify command_line
43 $ARGV[0] = $temp_folder;
44
45 die "$temp_folder exists" if -e $temp_folder;
46
47 mkdir $temp_folder;
48
49 # to be sure, check the contents
50 die "unexpected files" if <$temp_folder/*>;
51
52 # perform the command, generate the files in the temp folder
53 my $result = do $other_command;
54
55 if ((! defined $result) && ($! || $@))
56 {
57 die "system $other_command failed: $!\n$@";
58 }
59
60 #
61 # check now the files
62 #
63
64 my @temp_files = <$temp_folder/*>;
65
66 foreach my $temp_file (@temp_files)
67 {
68 if ($temp_file =~ m|(.*)/(.*)|)
69 {
70 my $other_file = "$other_dest_folder/$2";
71
72 if ((! -e $other_file) || compare_files($other_file, $temp_file) == 0)
73 {
74 unlink $other_file;
75 rename $temp_file, $other_file;
76 }
77 }
78 }
79
80 unlink @temp_files;
81 rmdir $temp_folder;
82
83 sub get_contents_of_file
84 {
85 my ($filename) = @_;
86
87 open(FILE, "<$filename") or die "open failed: $filename";
88 my @lines = <FILE>;
89 my $text = join '', @lines;
90 close FILE;
91
92 $text
93 }
94
95 sub compare_files
96 {
97 my ($file1, $file2) = @_;
98
99 get_contents_of_file($file1) eq get_contents_of_file($file2)
100 }
101