jammy (3) App::Cme::Command::meta.3pm.gz

Provided by: libconfig-model-itself-perl_2.023-1_all bug

NAME
       App::Cme::Command::meta - Work on the configuration model of an application


VERSION
       version 2.023


SYNOPSIS
         # edit meta model
         cme meta [ options ] edit [ model_class ]

         # check meta model
         cme meta [ options ] check [ model_class ]

         # model plugin mode
         cme meta [options] plugin application plugin_name


DESCRIPTION
       "cme meta edit" provides a Perl/Tk graphical interface to create or edit configuration models that will
       be used by Config::Model.

       This tool enables you to create configuration checker or editor for configuration files of an
       application.


USAGE
       "cme meta" supports several sub commands like "edit" or "plugin". These sub commands are detailed below.

   edit
       "cme meta edit" is the most useful sub command. It will read and write model file from
       "./lib/Config/Model/models" directory.

       Only configuration models matching the optional 4th parameter will be loaded. I.e.

         cme meta edit Xorg

       will load models "Xorg" (file "Xorg.pl") and all other "Xorg::*" like "Xorg::Screen" (file
       "Xorg/Screen.pl").

       Besides "edit", the following sub commands are available:

   check
       "cme meta check" reads the model files from "./lib/Config/Model/models" directory and checks their
       validity.

   plugin
       This sub command is used to create model plugins. A model plugin is an addendum to an existing model. The
       resulting file is saved in a ".d" directory besides the original file to be taken into account.

       For instance:

        $ cme meta plugin dpkg my-plugin
        # perform additions to Dpkg and Dpkg::Control and save
        $ find lib/Config/Model/models/Dpkg.d -type f
        lib/Config/Model/models/Debian/Dpkg.d/my-plugin/Dpkg.pl
        lib/Config/Model/models/Debian/Dpkg.d/my-plugin/Dpkg/Control.pl

       Use "-dev" option if you need to add plugins to a model located in current directory.

   gen-dot [ file.dot ]
       Create a dot file that represent the structure of the configuration model. By default, the generated dot
       file is "model.dot"

        $ cme meta gen-dot Itself itself.dot
        $ dot -T png itself.dot > itself.png

       "include" are represented by solid lines. Class usage (i.e. "config_class_name" parameter) is represented
       by dashed lines. The name of the element is attached to the dashed line.

   dump [ file.cds ]
       Dump configuration content in the specified file (or "model.cds") using Config::Model dump string syntax
       (hence the "cds" file extension).  See Config::Model::Loader for details on the syntax)

       By default, dump only custom values, i.e. different from application built-in values or model default
       values. See -dumptype option for other types of dump

        $ cme meta dump Itself

   dump-yaml [ file.yml ]
       Dump configuration content in the specified file (or "model.yml") in YAML format.

       For instance:

        $ cme meta dump-yaml Ssh::PortForward contrib/ssh-portforward.yml

   save
       Force a save of the model even if no edition was done. This option is useful to migrate a model when
       Config::Model model feature changes.


Options
       -system
           Read model from system files, i.e. from installed files, not from "./lib" directory.

       -trace
           Provides a full stack trace when exiting on error.

       -load <cds_file_to_load> | -
           Load model from cds file (using Config::Model serialisation format, typically done with -dump
           option). This option can be used with "save" to directly save a model loaded from the cds file or
           from STDIN.

       -load-yaml <yaml_file_to_load> | -
           Load configuration data in model from YAML file. This option can be used with "save" to directly save
           a model loaded from a YAML file or from STDIN.

       -force-load
           Load file even if error are found in data. Bad data are loaded, but should be cleaned up before
           saving the model. See menu "File -> check" in the GUI.

       -dumptype [ full | preset | custom ]
           Choose to dump every values (full), only preset values or only customized values (default) (only for
           "dump" sub command)

       -open-item 'path'
           In graphical mode, force the UI to open the specified node. E.g.

            -open_item 'class:Fstab::FsLine element:fs_mntopts rules'


LOGGING
       All Config::Model logging was moved from klunky debug and verbose prints to Log::Log4perl. Logging can be
       configured in the following files:

       •

            ~/.log4config-model

       •

            /etc/log4config-model.conf

       Without these files, the following Log4perl config is used:

        log4perl.logger=WARN, Screen
        log4perl.appender.Screen        = Log::Log4perl::Appender::Screen
        log4perl.appender.Screen.stderr = 0
        log4perl.appender.Screen.layout = Log::Log4perl::Layout::PatternLayout
        log4perl.appender.Screen.layout.ConversionPattern = %d %m %n

       Log4Perl categories are shown in "LOGGING" in cme


Dogfooding
       The GUI shown by "cme meta edit" is created from a configuration model that describes the structure and
       parameters of a configuration model. (which explains the "Itself" name. This module could also be named
       "Config::Model::DogFooding").

       This explains why the GUI shown by "cme meta edit" looks like the GUI shown by "cme edit": the same GUI
       generator is used.

       If you're new to Config::Model, I'd advise not to peek under "Config::Model::Itself" hood lest you loose
       your sanity.


AUTHOR
       Dominique Dumont, ddumont at cpan dot org


SEE ALSO
       •   Config::Model::Manual::ModelCreationIntroduction

       •   cme,

       •   Config::Model,

       •   Config::Model::Itself,

       •   Config::Model::Node,

       •   Config::Model::Instance,

       •   Config::Model::HashId,

       •   Config::Model::ListId,

       •   Config::Model::WarpedNode,

       •   Config::Model::Value


AUTHOR
       Dominique Dumont


       This software is Copyright (c) 2007-2019 by Dominique Dumont.

       This is free software, licensed under:

         The GNU Lesser General Public License, Version 2.1, February 1999