PAR(1) | User Contributed Perl Documentation | PAR(1) |
NAME
par.pl - Make and run Perl Archives
SYNOPSIS
(Please see pp for convenient ways to make self-contained executables, scripts or PAR archives from perl programs.)
To make a PAR distribution from a CPAN module distribution:
% par.pl -p # make a PAR dist under the current path % par.pl -p Foo-0.01 # assume unpacked CPAN dist in Foo-0.01/
To manipulate a PAR distribution:
% par.pl -i Foo-0.01-i386-freebsd-5.8.0.par # install % par.pl -i http://foo.com/Foo-0.01 # auto-appends archname + perlver % par.pl -i cpan://AUTRIJUS/PAR-0.74 # uses CPAN author directory % par.pl -u Foo-0.01-i386-freebsd-5.8.0.par # uninstall % par.pl -s Foo-0.01-i386-freebsd-5.8.0.par # sign % par.pl -v Foo-0.01-i386-freebsd-5.8.0.par # verify
To use Hello.pm from ./foo.par:
% par.pl -A./foo.par -MHello % par.pl -A./foo -MHello # the .par part is optional
Same thing, but search foo.par in the @INC;
% par.pl -Ifoo.par -MHello % par.pl -Ifoo -MHello # ditto
Run test.pl or script/test.pl from foo.par:
% par.pl foo.par test.pl # looks for 'main.pl' by default, # otherwise run 'test.pl'
To make a self-containing script containing a PAR file :
% par.pl -O./foo.pl foo.par % ./foo.pl test.pl # same as above
To embed the necessary non-core modules and shared objects for PAR's execution (like "Zlib", "IO", "Cwd", etc), use the -b flag:
% par.pl -b -O./foo.pl foo.par % ./foo.pl test.pl # runs anywhere with core modules installed
If you also wish to embed core modules along, use the -B flag instead:
% par.pl -B -O./foo.pl foo.par % ./foo.pl test.pl # runs anywhere with the perl interpreter
This is particularly useful when making stand-alone binary executables; see pp for details.
DESCRIPTION
This stand-alone command offers roughly the same feature as "perl -MPAR", except that it takes the pre-loaded .par files via "-Afoo.par" instead of "-MPAR=foo.par".
Additionally, it lets you convert a CPAN distribution to a PAR distribution, as well as manipulate such distributions. For more information about PAR distributions, see PAR::Dist.
Binary PAR loader (parl)
If you have a C compiler, or a pre-built binary package of PAR is available for your platform, a binary version of par.pl will also be automatically installed as parl. You can use it to run .par files:
# runs script/run.pl in archive, uses its lib/* as libraries % parl myapp.par run.pl # runs run.pl or script/run.pl in myapp.par % parl otherapp.pl # also runs normal perl scripts
However, if the .par archive contains either main.pl or script/main.pl, it is used instead:
% parl myapp.par run.pl # runs main.pl, with 'run.pl' as @ARGV
Finally, the "-O" option makes a stand-alone binary executable from a PAR file:
% parl -B -Omyapp myapp.par % ./myapp # run it anywhere without perl binaries
With the "--par-options" flag, generated binaries can act as "parl" to pack new binaries:
% ./myapp --par-options -Omyap2 myapp.par # identical to ./myapp % ./myapp --par-options -Omyap3 myap3.par # now with different PAR
Stand-alone executable format
The format for the stand-alone executable is simply concatenating the following elements:
- The executable itself
Either in plain-text (par.pl) or native executable format (parl or parl.exe).
- Any number of embedded files
These are typically used for bootstrapping PAR's various XS dependencies. Each section contains:
- The magic string ""FILE""
- Length of file name in pack('N') format plus 9
- 8 bytes of hex-encoded CRC32 of file content
- A single slash (""/"")
- The file name (without path)
- File length in pack('N') format
- The file's content (not compressed)
- One PAR file
This is just a zip file beginning with the magic string ""PK\003\004"".
- Ending section
The pre-computed cache name. A pack('Z40') string of the value of -T (--tempcache) or the hash of the file, followed by "\0CACHE". The hash of the file is calculated with Digest::SHA.
A pack('N') number of the total length of FILE and PAR sections, followed by a 8-bytes magic string: ""\012PAR.pm\012"".
SEE ALSO
PAR, PAR::Dist, parl, pp
AUTHORS
Audrey Tang <cpan@audreyt.org>, Steffen Mueller <smueller@cpan.org>
You can write to the mailing list at <par@perl.org>, or send an empty mail to <par-subscribe@perl.org> to participate in the discussion. Archives of the mailing list are available at https://www.mail-archive.com/par@perl.org/ or https://groups.google.com/g/perl.par.
Please submit bug reports to https://github.com/rschupp/PAR-Packer/issues.
COPYRIGHT
Copyright 2002-2009 by Audrey Tang <cpan@audreyt.org>.
Neither this program nor the associated parl program impose any licensing restrictions on files generated by their execution, in accordance with the 8th article of the Artistic License:
"Aggregation of this Package with a commercial distribution is always permitted provided that the use of this Package is embedded; that is, when no overt attempt is made to make this Package's interfaces visible to the end user of the commercial distribution. Such use shall not be construed as a distribution of this Package."
Therefore, you are absolutely free to place any license on the resulting executable, as long as the packed 3rd-party libraries are also available under the Artistic License.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See LICENSE.
2024-09-01 | perl v5.40.0 |