1PFT::Conf(3) User Contributed Perl Documentation PFT::Conf(3)
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6 PFT::Conf - Configuration parser for PFT
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9 PFT::Conf->new_default() # Using default
10 PFT::Conf->new_load($root) # Load from conf file in directory
11 PFT::Conf->new_load_locate() # Load from conf file, find directory
12 PFT::Conf->new_load_locate($cwd)
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14 PFT::Conf::locate() # Locate root
15 PFT::Conf::locate($cwd)
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17 PFT::Conf::isroot($path) # Check if location exists under path.
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19 use Getopt::Long;
20 Getopt::Long::Configure 'bundling';
21 GetOptions(
22 PFT::Conf::wire_getopt(\my %opts),
23 'more-opt' => \$more,
24 );
25 PFT::Conf->new_getopt(\%opts); # Create with command line options
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28 Automatic loader and handler for the configuration file of a PFT site.
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30 The configuration is a simple YAML file with a conventional name. Some
31 keys are mandatory, while other are optional. This module allows a
32 headache free check for mandatory ones.
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35 Many constructors are available, here described:
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37 new_default
38 Creates a new configuration based on environment variables and
39 common sense.
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41 The configuration can later be stored on a file with the "save_to"
42 method.
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44 new_load
45 Loads a configuration file which must already exist. Accepts as
46 optional argument the name of a directory (not encoded), which
47 defaults on the current directory.
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49 This constructor fails with "croak" if the directory does not
50 contain a configuration file.
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52 new_load_locate
53 Works as "new_load", but before failing makes an attempt to locate
54 the configuration file in the parent directories up to the root
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57 This is handy for launching commands from the command line without
58 worrying on the current directory: it works as long as your cwd is
59 below a PFT root directory.
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61 wire_getopt and new_getopt
62 This is a two-steps constructor meant for command line
63 initializers.
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65 An example of usage can be found in the SYNOPSIS section. In short,
66 the auxiliary function "PFT::Conf::wire_getopt" provides a list of
67 ready-to-use options for the "GetOpt::Long" Perl module. It expects
68 a hash reference as argument, which will be used as storage for
69 selected options. The "new_getopt" constructor expects as argument
70 the same hash reference.
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72 Shared variables
73 $PFT::Conf::CONF_NAME is a string. Defines the name of the
74 configuration file.
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76 Utility functions
77 isroot
78 The "PFT::Conf::isroot" function searches for the configuration
79 file in the given directory path (not encoded).
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81 Returns "undef" if the file was not found, and the encoded file
82 name (according to locale) if it was found.
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84 locate
85 The "PFT::Conf::locate" function locates a PFT configuration file.
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87 It accepts as optional parameter a directory path (not encoded),
88 defaulting on the current working directory.
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90 Possible return values:
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92 The input directory itself if the configuration file was found in
93 it;
94 The first encountered parent directory containing the configuration
95 file;
96 "undef" if no configuration file was found, up to the root of all
97 directories.
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99 Methods
100 save_to
101 Save the configuration to a file. This will also update the inner root
102 reference, so the intsance will point to the saved file.
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106perl v5.32.1 2021-01-27 PFT::Conf(3)