dpan - create a DarkPAN from directories
# from the command line
prompt> dpan [-l log4perl.config] [-f config] [directory [directory2]]
# get some help
prompt> dpan -h
prompt> dpan --help
# see the version
prompt> dpan -v
prompt> dpan --version
# see the configuration (exits after printing config)
prompt> dpan -c
prompt> dpan -c -f config
The dpan script takes a list of directories, indexes any Perl distributions it finds, and creates the PAUSE index files from what it finds. Afterward, you should be able to point a CPAN tool at the directory and install the distributions normally.
If you don't specify any directories on the command line, it works with the current working directory.
At the end, dpan creates a modules directory in the first directory (or the current working directory) and creates the 02package.details.txt.gz and 03modlist.data.gz.
Dump the configuration and exit.
Use the named configuration file.
The path to the log4perl configuration file. You can also set this with the <DPAN_LOG4PERL_FILE> environment variable or the log4perl_file configuration directive.
If you don't specify these values in a configuation file, dpan will use its defaults. The behavior of these options only apply to the default components. If you subclass a component or use a different component, you might see something different.
Some of the configuration options come from MyCPAN::Indexer::App::BackPAN. The source of each directive is noted.
The maximum amount of time allowed to index a distribution, in seconds.
Affected components: Worker
Config level: MyCPAN
dpan will use this filename to add PAUSE IDs it finds in the repository to authors/00whois.xml and authors/01mailrc.txt.gz (see also pause_id and pause_full_name). Without this file, dpan will use the value of pause_full_name for new PAUSE IDs it finds.
The format is the file are lines that have the PAUSE ID followed by the full name and email address in angle brackets:
BUSTER Buster Bean <email@example.com>
This option helps your DPAN work with CPAN::Mini::Webserver, which tries to pull values out of authors/00whois.xml and authors/01mailrc.txt.gz to insert into its templates.
Affected components: Collator
Config level: DPAN
The Perl class to use as the Dispatcher component. See MyCPAN::Indexer::Tutorial for details on components.
If set to a true value, copy bad distributions to the named directory so you can inspect them later.
Affected components: Queue
The directory where dpan will create the DPAN. It takes a single directory.
Default: the current working directory
Affected components: all of them
The subdirectory under report_dir to use for error reports.
Affected components: Reporter, Collator
You can specify another directory that contains pre-indexed reports. dpan will add these reports to its queue to create 02packages.details.txt.gz. So far, dpan doesn't check that these reports correspond to any files in the repository and could cause the checks against 02packages.details.txt.gz to fail.
You probably want to use this as a way to inject information about distributions that you skipped with skip_dists_regexes. This is also very handy for problematic distributions that resist indexing.
Affected components: Indexer
Delete the report directory before indexing. This cleans out all previous work in report_dir, so you need to save that on your own. You can also set this with the DPAN_FRESH_START environment variable.
Affected components: Queue, Reporter
dpan considers some problems to be too troublesome to continue, such as when it thinks it created incomplete index files. If you don't want dpan to stop, set i_ignore_errors_at_my_peril to a true value. However, you might get an invalid mirror.
dpan aborts the process if it finds distributions in the repository that don't show up in 02packages.details.txt.gz, which it think signals an incomplete index. If you want to risk an incomplete index, set this to a true value.
You can tell DPAN to ignore some namespaces. The indexer may still record them, but they won't show up in 02packages.details.txt.gz. It's a space-separated list of exact package names
Default: main MY MM DB bytes DynaLoader
The Perl class to use as the Indexer component. See MyCPAN::Indexer::Tutorial for details on components.
Give yourself a name so people who who ran dpan.
Default: Joe Example <firstname.lastname@example.org>
Affected components: Reporter
The Perl class to use as the Interface component. See MyCPAN::Indexer::Tutorial for details on components.
The time, in seconds, to wait until Log4perl checks for an updated configuration file.
Affected components: all
The path to the log4perl configuration file. You can also set this with the <-l> switch or the DPAN_LOG4PERL_FILE environment variable.
A space separated list of directories containing distributions to merge into DPAN. These will go into the directory for pause_id. The files are copied, not renamed, so it works across partitions and mount points.
Take all of the distributions dpan finds and put the into a PAUSE-like structure under authors/id/D/DP/DPAN under dpan_dir. You can change the author ID with the pause_id directive.
The number of parallel jobs to run. This only matters for dispatcher classes that can do more than one thing at a time. The default dispatcher does not use parallel jobs. You need to change the dispatcher_class to MyCPAN::Indexer::Dispatcher::Parallel (or another class that supports this).
Affected components: Dispatcher
The author ID to use if organize_dists is set to a true value.
Affected components: Queue, Reporter, Collator
The full name to use for the default PAUSE ID and any unclaimed ID dpan finds in the repository. This shows up in the 01mailrc.txt.gz and 00whois.xml files.
Default: "DPAN user <CENSORED>"
If defined, after dpan has finished all of its work and is ready to exit, it will try to load this class and execute its run() method. It passes run() the application object, so you have full access to everything. See MyCPAN::App::DPAN::NullPostFlight for an example. To use the application object, you need to know a little about the guts of MyCPAN::Indexer.
Affected components: none
If set to a true value, dpan will try to use an external binary before it results to a pure Perl option. This matters mostly for Archive::Extract. Your tar utility may have better luck than Archive::Tar.
This setting overrides the PREFER_BIN environment variable. You can also set that environment variable to change how Archive::Extract decides to extract an archive.
The Perl class to use as the Queue component. See MyCPAN::Indexer::Tutorial for details on components.
If true, supporting Reporter classes change the path to the distribution file to be relative to authors/id. Otherwise, the path in the report is the absolute path to the distribution.
Supported by MyCPAN::App::DPAN::Reporter::Minimal.
The Perl class to use as the Reporter component. See MyCPAN::Indexer::Tutorial for details on components.
Where to store the distribution reports.
Default: a directory named indexer_reports in the current working directory
Try to index a distribution even if it was previously tried and had an error. This depends on previous reports being in report_dir, so if you don't set that configuration directive, it won't matter.
You can specify a list of whitespace-separated regexes for dpan to use to filter the queue of distributions to index. You probably want to use this to skip very large distributions. You can have a pre-made index report by setting extra_reports_dir.
This is only supported by MyCPAN::Indexer::SkipQueue.
When set to a true value, skip_perl cause dpan to ignore distributions that match /^(strawberry-?)perl-/, since these can take a long time to index. You can have a pre-made index report by setting extra_reports_dir.
The subdirectory under report_dir to use for success reports.
Give the indexing system a name, just to identify the machine. This shows up in the run_info, although the default Reporter does not include it in the report.
Default: 'an unnamed machine'
Where to unpack the dists or create any temporary files.
Default: a temp directory in the current working directory
When use_real_whois is set to a true value, dpan tries to update the authors/00whois.xml and authors/01mailrc.txt.gz files from a real CPAN mirror. This will overwrite the files already in the repository, although it will update the CPAN versions with PAUSE IDs dpan finds in the repository (see author_map).
The default case for most dpan options is to avoid the real CPAN, so by default dpan will create stub files for these files instead of fetching the real ones.
If you are using CPAN::Mini, you can mirror 00whois.xml by adding a line to your .minicpanrc:
The Perl class to use as the Worker component. See MyCPAN::Indexer::Tutorial for details on components.
dpan uses Log4perl if it is available. Without Log4perl, it uses a small internal logger that prints to the screen.
You can set the Log4perl levels on each of the components separately:
log4perl.rootLogger = FATAL, Null
log4perl.logger.backpan_indexer = DEBUG, File
log4perl.logger.Indexer = DEBUG, File
log4perl.logger.Worker = DEBUG, File
log4perl.logger.Interface = DEBUG, File
log4perl.logger.Dispatcher = DEBUG, File
log4perl.logger.Queue = DEBUG, File
log4perl.logger.Reporter = DEBUG, File
log4perl.logger.Collator = DEBUG, File
Delete the report directory before indexing. This cleans out all previous work, so you need to save that on your own. You can also set this with the fresh_start configuration directive.
The path to the log4perl configuration file. You can also set this with the <-l> switch of the log4perl_file configuration directive.
The Log4perl level for easyinit. This won't affect the logging level if you specify a log configuration file.
This code is in Github:
brian d foy, <email@example.com>
Copyright © 2010-2018, brian d foy <firstname.lastname@example.org>. All rights reserved.
You may redistribute this under the terms of the Artistic License 2.0.
To install MyCPAN::App::DPAN, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.