1Command::Runner(3pm)  User Contributed Perl Documentation Command::Runner(3pm)
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NAME

6       Command::Runner - run external commands and Perl code refs
7

SYNOPSIS

9         use Command::Runner;
10
11         my $cmd = Command::Runner->new(
12           command => ['ls', '-al'],
13           timeout => 10,
14           stdout  => sub { warn "out: $_[0]\n" },
15           stderr  => sub { warn "err: $_[0]\n" },
16         );
17         my $res = $cmd->run;
18

DESCRIPTION

20       Command::Runner runs external commands and Perl code refs
21

METHODS

23   new
24       A constructor, which takes:
25
26       command
27           an array of external commands, a string of external programs, or a
28           Perl code ref.  If an array of external commands is specified, it
29           is automatically quoted on Windows.
30
31       timeout
32           timeout second. You can set float second.
33
34       redirect
35           if this is true, stderr redirects to stdout
36
37       keep
38           by default, even if stdout/stderr is consumed, it is preserved for
39           return value.  You can disable this behavior by setting keep option
40           false.
41
42       stdout / stderr
43           a code ref that will be called whenever stdout/stderr is available
44
45       env set environment variables.
46
47             Command::Runner->new(..., env => \%env)->run
48
49           is roughly equivalent to
50
51             {
52               local %ENV = %env;
53               Command::Runner->new(...)->run;
54             }
55
56       cwd set the current directory.
57
58             Command::Runner->new(..., cwd => $dir)->run
59
60           is roughly equivalent to
61
62             {
63               require File::pushd;
64               my $guard = File::pushd::pushd($dir);
65               Command::Runner->new(...)->run;
66             }
67
68   run
69       Run command. It returns a hash reference, which contains:
70
71       result
72       timeout
73       stdout
74       stderr
75       pid
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MOTIVATION

78       I develop a CPAN client App::cpm, where I need to execute external
79       commands and Perl code refs with:
80
81       timeout
82       quoting
83       flexible logging
84
85       While App::cpanminus has excellent APIs for such use, I still needed to
86       tweak them in App::cpm.
87
88       So I ended up creating a seperate module, Command::Runner.
89

AUTHOR

91       Shoichi Kaji <skaji@cpan.org>
92

94       Copyright 2017 Shoichi Kaji <skaji@cpan.org>
95
96       This library is free software; you can redistribute it and/or modify it
97       under the same terms as Perl itself.
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101perl v5.34.0                      2022-03-24              Command::Runner(3pm)
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