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Config::Model::Backend::Debian::Dpkg(3pm)		User Contributed Perl Documentation		 Config::Model::Backend::Debian::Dpkg(3pm)

NAME
Config::Model::Backend::Debian::Dpkg - Read and write config as plain file VERSION
version 2.021 SYNOPSIS
use Config::Model; use Log::Log4perl qw(:easy); Log::Log4perl->easy_init($WARN); my $model = Config::Model->new; my $inst = $model->create_config_class( name => "WithDebian::Dpkg", element => [ [qw/source new/] => { qw/type leaf value_type uniline/ }, ], read_config => [ { backend => 'plain_file', config_dir => '/tmp', }, ], ); my $inst = $model->instance(root_class_name => 'WithDebian::Dpkg' ); my $root = $inst->config_root ; $root->load('source=foo new=yes' ); $inst->write_back ; Now "/tmp" directory will contain 2 files: "source" and "new" with "foo" and "yes" inside. DESCRIPTION
This module is used directly by Config::Model to read or write the content of a configuration tree written in several files. Each element of the node is written in a plain file. This module supports currently only leaf and list elements. In the case of "list" element, each line of the file is a value of the list. CONSTRUCTOR
new ( node => $node_obj, name => 'plain_file' ) ; Inherited from Config::Model::Backend::Any. The constructor will be called by Config::Model::AutoRead. read ( io_handle => ... ) Of all parameters passed to this read call-back, only "io_handle" is used. This parameter must be IO::File object already opened for read. It can also be undef. In this case, "read()" will return 0. When a file is read, "read()" will return 1. write ( io_handle => ... ) Of all parameters passed to this write call-back, only "io_handle" is used. This parameter must be IO::File object already opened for write. "write()" will return 1. AUTHOR
Dominique Dumont, (ddumont at cpan dot org) SEE ALSO
Config::Model, Config::Model::AutoRead, Config::Model::Backend::Any, perl v5.14.2 2012-11-09 Config::Model::Backend::Debian::Dpkg(3pm)

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Config::Model::Backend::Any(3pm)			User Contributed Perl Documentation			  Config::Model::Backend::Any(3pm)

NAME
Config::Model::Backend::Any - Virtual class for other backends VERSION
version 2.021 SYNOPSIS
package Config::Model::Backend::Foo ; use Any::Moose ; use Log::Log4perl qw(get_logger :levels); extends 'Config::Model::Backend::Any'; # optional sub suffix { return '.foo'; } # mandatory sub read { my $self = shift ; my %args = @_ ; # args are: # root => './my_test', # fake root directory, userd for tests # config_dir => /etc/foo', # absolute path # file => 'foo.conf', # file name # file_path => './my_test/etc/foo/foo.conf' # io_handle => $io # IO::File object # check => yes|no|skip return 0 unless defined $args{io_handle} ; # or die? foreach ($args{io_handle}->getlines) { chomp ; s/#.*/ ; next unless /S/; # skip blank line # $data is 'foo=bar' which is compatible with load $self->node->load(step => $_, check => $args{check} ) ; } return 1 ; } # mandatory sub write { my $self = shift ; my %args = @_ ; # args are: # root => './my_test', # fake root directory, userd for tests # config_dir => /etc/foo', # absolute path # file => 'foo.conf', # file name # file_path => './my_test/etc/foo/foo.conf' # io_handle => $io # IO::File object # check => yes|no|skip my $ioh = $args{io_handle} ; foreach my $elt ($self->node->get_element_name) { my $obj = $self->node->fetch_element($elt) ; my $v = $self->node->grab_value($elt) ; # write value $ioh->print(qq!$elt="$v" !) if defined $v ; $ioh->print(" ") if defined $v ; } return 1; } no Any::Moose ; __PACKAGE__->meta->make_immutable ; DESCRIPTION
This Moose class is to be inherited by other backend plugin classes See "read callback" in Config::Model::AutoRead and "write callback" in Config::Model::AutoRead for more details on the method that must be provided by any backend classes. CONSTRUCTOR
new ( node => $node_obj, name => backend_name ) The constructor should be used only by Config::Model::Node. Methods to override annotation Whether the backend supports to read and write annotation. Default is 0. Override if your backend supports annotations Methods read_global_comments( lines , comment_char) Read the global comments (i.e. the first block of comments until the first blank or non comment line) and store them as root node annotation. The first parameter ("lines") is an array ref containing file lines. associates_comments_with_data ( lines , comment_char) This method will extract comments from the passed lines and associate them with actual data found in the file lines. Data is associated with comments preceding or on the same line as the data. Returns a list of [ data, comment ] . Example: # Foo comments foo= 1 Baz = 0 # Baz comments will return ( [ 'foo= 1', 'Foo comments' ] , [ 'Baz = 0' , 'Baz comments' ] ) write_global_comments( io_handle , comment_char) Write global comments from configuration root annotation into the io_handle (if defined). Returns the string written to the io_handle. write_data_and_comments( io_handle , comment_char , data1, comment1, data2, comment2 ...) Write data and comments in the "io_handle" (if defined). Comments are written before the data. Returns the string written to the io_handle. If a data is undef, the comment will be written on its own line. AUTHOR
Dominique Dumont, (ddumont at cpan dot org) SEE ALSO
Config::Model, Config::Model::AutoRead, Config::Model::Node, Config::Model::Backend::Yaml, perl v5.14.2 2012-11-09 Config::Model::Backend::Any(3pm)
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