1Test2::Harness::Util::FUisleer(3C)ontributed Perl DocumeTnetsatt2i:o:nHarness::Util::File(3)
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NAME

6       Test2::Harness::Util::File - Utility class for manipulating a file.
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DESCRIPTION

9       This is a utility class for file operations. This also serves as a base
10       class for several file helpers.
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SYNOPSIS

13           use Test2::Harness::Util::File;
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15           my $f = Test2::Harness::Util::File->new(name => '/path/to/file');
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17           $f->write($content);
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19           my $fh = $f->open_file('<');
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21           # Read, throw exception if it cannot read
22           my $content = $f->read();
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24           # Try to read, but do not throw an exception if it cannot be read.
25           my $content_or_undef = $f->maybe_read();
26
27           my $line1 = $f->read_line();
28           my $line2 = $f->read_line();
29           ...
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ATTRIBUTES

32       $filename = $f->name;
33           Get the filename. Must also be provided during construction.
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35       $bool = $f->done;
36           True if read_line() has read every line.
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METHODS

39       $decoded = $f->decode($encoded)
40           This is a no-op, it returns the argument unchanged. This is called
41           by "read" and "read_line". Subclasses can override this if the file
42           contains encoded data.
43
44       $encoded = $f->encode($decoded)
45           This is a no-op, it returns the argument unchanged. This is called
46           by "write".  Subclasses can override this if the file contains
47           encoded data.
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49       $bool = $f->exists()
50           Check if the file exists
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52       $content = $f->maybe_read()
53           This will read the file if it can and return the content (all lines
54           joined together as a single string). If the file cannot be read, or
55           does not exist this will return undef.
56
57       $fh = $f->open_file()
58       $fh = $f->open_file($mode)
59           Open a handle to the file. If no $mode is provided '<' is used.
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61       $content = $f->read()
62           This will read the file if it can and return the content (all lines
63           joined together as a single string). If the file cannot be read, or
64           does not exist this will throw an exception.
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66       $line = $f->read_line()
67           Read a single line from the file, subsequent calls will read the
68           next line and so on until the end of the file is reached. Reset
69           with the "reset()" method.
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71       $f->reset()
72           Reset the internal line iterator used by "read_line()".
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74       $f->write($content)
75           This is an atomic-write. First $content will be written to a
76           temporary file using '>' mode. Then the temporary file will be
77           renamed to the desired file name. Under the hood this uses
78           "write_file_atomic()" from Test2::Harness::Util.
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SOURCE

81       The source code repository for Test2-Harness can be found at
82       http://github.com/Test-More/Test2-Harness/.
83

MAINTAINERS

85       Chad Granum <exodist@cpan.org>
86

AUTHORS

88       Chad Granum <exodist@cpan.org>
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91       Copyright 2020 Chad Granum <exodist7@gmail.com>.
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93       This program is free software; you can redistribute it and/or modify it
94       under the same terms as Perl itself.
95
96       See http://dev.perl.org/licenses/
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100perl v5.34.1                      2022-07-11     Test2::Harness::Util::File(3)
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