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=head1 NAME |
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AnyEvent::MP::Config - configuration handling |
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=head1 SYNOPSIS |
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# see the "aemp" command line utility |
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=head1 DESCRIPTION |
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Move along pleas,e nothing to see here at the moment. |
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=cut |
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package AnyEvent::MP::Config; |
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use common::sense; |
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use Carp (); |
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use AnyEvent (); |
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use JSON::XS (); |
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our $CONFIG_FILE = $ENV{HOME} ? "$ENV{HOME}/.perl-anyevent-mp" |
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: "$ENV{APPDATA}/perl-anyevent-mp"; |
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our %CFG; |
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sub load { |
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if (open my $fh, "<:raw", $CONFIG_FILE) { |
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return if eval { |
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local $/; |
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%CFG = %{ JSON::XS->new->utf8->relaxed->decode (scalar <$fh>) }; |
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}; |
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} |
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%CFG = ( |
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version => 1, |
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dirty => 1, |
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); |
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} |
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sub save { |
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return unless delete $CFG{dirty}; |
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open my $fh, ">:raw", "$CONFIG_FILE~new~" |
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or Carp::croak "$CONFIG_FILE~new~: $!"; |
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syswrite $fh, JSON::XS->new->pretty->utf8->encode (\%CFG) . "\n" |
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or Carp::croak "$CONFIG_FILE~new~: $!"; |
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close $fh |
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or Carp::croak "$CONFIG_FILE~new~: $!"; |
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unlink "$CONFIG_FILE~"; |
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link $CONFIG_FILE, "$CONFIG_FILE~"; |
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rename "$CONFIG_FILE~new~", $CONFIG_FILE |
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or Carp::croak "$CONFIG_FILE: $!"; |
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} |
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load; |
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END { save } |
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=head1 SEE ALSO |
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L<AnyEvent::MP>. |
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=head1 AUTHOR |
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Marc Lehmann <schmorp@schmorp.de> |
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http://home.schmorp.de/ |
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=cut |
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