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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
commitfc22b3d6507c6745911b9dfcc68f1e665ae13dbc (patch)
treece1e3bce06471410239a6f41282e328770aa404a /upstream/debian-unstable/man3/CPAN::Distroprefs.3perl
parentInitial commit. (diff)
downloadmanpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.tar.xz
manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.zip
Adding upstream version 4.22.0.upstream/4.22.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+. ds C` ""
+. ds C' ""
+'br\}
+.el\{\
+. ds C`
+. ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+. if \nF \{\
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
+..
+. if !\nF==2 \{\
+. nr % 0
+. nr F 2
+. \}
+. \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "CPAN::Distroprefs 3perl"
+.TH CPAN::Distroprefs 3perl 2024-01-12 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+CPAN::Distroprefs \-\- read and match distroprefs
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\& use CPAN::Distroprefs;
+\&
+\& my %info = (... distribution/environment info ...);
+\&
+\& my $finder = CPAN::Distroprefs\->find($prefs_dir, \e%ext_map);
+\&
+\& while (my $result = $finder\->next) {
+\&
+\& die $result\->as_string if $result\->is_fatal;
+\&
+\& warn($result\->as_string), next if $result\->is_warning;
+\&
+\& for my $pref (@{ $result\->prefs }) {
+\& if ($pref\->matches(\e%info)) {
+\& return $pref;
+\& }
+\& }
+\& }
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+This module encapsulates reading Distroprefs and matching them against CPAN distributions.
+.SH INTERFACE
+.IX Header "INTERFACE"
+.Vb 1
+\& my $finder = CPAN::Distroprefs\->find($dir, \e%ext_map);
+\&
+\& while (my $result = $finder\->next) { ... }
+.Ve
+.PP
+Build an iterator which finds distroprefs files in the tree below the
+given directory. Within the tree directories matching \f(CW\*(C`m/^[._]/\*(C'\fR are
+pruned.
+.PP
+\&\f(CW%ext_map\fR is a hashref whose keys are file extensions and whose values are
+modules used to load matching files:
+.PP
+.Vb 5
+\& {
+\& \*(Aqyml\*(Aq => \*(AqYAML::Syck\*(Aq,
+\& \*(Aqdd\*(Aq => \*(AqData::Dumper\*(Aq,
+\& ...
+\& }
+.Ve
+.PP
+Each time \f(CW\*(C`$finder\->next\*(C'\fR is called, the iterator returns one of two
+possible values:
+.IP \(bu 4
+a CPAN::Distroprefs::Result object
+.IP \(bu 4
+\&\f(CW\*(C`undef\*(C'\fR, indicating that no prefs files remain to be found
+.SH RESULTS
+.IX Header "RESULTS"
+\&\f(CWfind()\fR returns CPAN::Distroprefs::Result objects to
+indicate success or failure when reading a prefs file.
+.SS Common
+.IX Subsection "Common"
+All results share some common attributes:
+.PP
+\fItype\fR
+.IX Subsection "type"
+.PP
+\&\f(CW\*(C`success\*(C'\fR, \f(CW\*(C`warning\*(C'\fR, or \f(CW\*(C`fatal\*(C'\fR
+.PP
+\fIfile\fR
+.IX Subsection "file"
+.PP
+the file from which these prefs were read, or to which this error refers (relative filename)
+.PP
+\fIext\fR
+.IX Subsection "ext"
+.PP
+the file's extension, which determines how to load it
+.PP
+\fIdir\fR
+.IX Subsection "dir"
+.PP
+the directory the file was read from
+.PP
+\fIabs\fR
+.IX Subsection "abs"
+.PP
+the absolute path to the file
+.SS Errors
+.IX Subsection "Errors"
+Error results (warning and fatal) contain:
+.PP
+\fImsg\fR
+.IX Subsection "msg"
+.PP
+the error message (usually either \f(CW$!\fR or a YAML error)
+.SS Successes
+.IX Subsection "Successes"
+Success results contain:
+.PP
+\fIprefs\fR
+.IX Subsection "prefs"
+.PP
+an arrayref of CPAN::Distroprefs::Pref objects
+.SH PREFS
+.IX Header "PREFS"
+CPAN::Distroprefs::Pref objects represent individual distroprefs documents.
+They are constructed automatically as part of \f(CW\*(C`success\*(C'\fR results from \f(CWfind()\fR.
+.PP
+\fIdata\fR
+.IX Subsection "data"
+.PP
+the pref information as a hashref, suitable for e.g. passing to Kwalify
+.PP
+\fImatch_attributes\fR
+.IX Subsection "match_attributes"
+.PP
+returns a list of the valid match attributes (see the Distroprefs section in CPAN)
+.PP
+currently: \f(CW\*(C`env perl perlconfig distribution module\*(C'\fR
+.PP
+\fIhas_any_match\fR
+.IX Subsection "has_any_match"
+.PP
+true if this pref has a 'match' attribute at all
+.PP
+\fIhas_valid_subkeys\fR
+.IX Subsection "has_valid_subkeys"
+.PP
+true if this pref has a 'match' attribute and at least one valid match attribute
+.PP
+\fImatches\fR
+.IX Subsection "matches"
+.PP
+.Vb 1
+\& if ($pref\->matches(\e%arg)) { ... }
+.Ve
+.PP
+true if this pref matches the passed-in hashref, which must have a value for
+each of the \f(CW\*(C`match_attributes\*(C'\fR (above)
+.SH LICENSE
+.IX Header "LICENSE"
+This program is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.