1Test2::Harness::Util::FUisleer(3C)ontributed Perl DocumeTnetsatt2i:o:nHarness::Util::File(3)
2
3
4

NAME

6       Test2::Harness::Util::File - Utility class for manipulating a file.
7

DESCRIPTION

9       This is a utility class for file operations. This also serves as a base
10       class for several file helpers.
11

SYNOPSIS

13           use Test2::Harness::Util::File;
14
15           my $f = Test2::Harness::Util::File->new(name => '/path/to/file');
16
17           $f->write($content);
18
19           my $fh = $f->open_file('<');
20
21           # Read, throw exception if it cannot read
22           my $content = $f->read();
23
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           ...
30

ATTRIBUTES

32       $filename = $f->name;
33           Get the filename. Must also be provided during construction.
34
35       $bool = $f->done;
36           True if read_line() has read every line.
37

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.
48
49       $bool = $f->exists()
50           Check if the file exists
51
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.
60
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.
65
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.
70
71       $f->reset()
72           Reset the internal line iterator used by "read_line()".
73
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.
79

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>
89

91       Copyright 2020 Chad Granum <exodist7@gmail.com>.
92
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/
97
98
99
100perl v5.36.0                      2022-09-08     Test2::Harness::Util::File(3)
Impressum