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 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
.
Binary PAR loader (parl)
If you have a C compiler, 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, as an alternative to Perl2exe
or PerlApp
, the -O
option makes a stand-alone binary 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 generate 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:
One PAR file
This is just a zip file beginning with the magic string "
PK\003\004
".Ending section
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
AUTHORS
Autrijus Tang <autrijus@autrijus.org>
PAR has a mailing list, <par@perl.org>, that you can write to; send an empty mail to <par-subscribe@perl.org> to join the list and participate in the discussion.
Please send bug reports to <bug-par@rt.cpan.org>.
COPYRIGHT
Copyright 2002 by Autrijus Tang <autrijus@autrijus.org>.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.