Building a Mojolicious app with PAR::Packer

[Hue-Bond]

Esteemed monks,

I'm trying to make an .exe file out of a little program using Mojolicious::Lite. It's Strawberry Perl 5.12.0 on Windows XP SP2 (perl built for MSWin32-x86-multi-thread).

The code couldn't be simpler:

#!/usr/bin/perl

use Mojolicious::Lite;

This is what happens when I try to build it:

> pp -o use-mojo.exe use-mojo.pl

> use-mojo.exe
Can't locate Mojolicious.pm in @INC (@INC contains: CODE(0x13ddff4) C:
+\DOCUME~1\hue\CONFIG~1\Temp\par-hue\cache-b63530375d9cac583a4739b81f2
+5c342b562e895\inc\lib C:\DOCUME~1\hue\CONFIG~1\Temp\par-hue\cache-b63
+530375d9cac583a4739b81f25c342b562e895\inc CODE(0x121b2fc) CODE(0x121b
+5fc)) at Mojo/Base.pm line 31.
BEGIN failed--compilation aborted at Mojolicious/Lite.pm line 2.
Compilation failed in require at script/use-mojo.pl line 3.
BEGIN failed--compilation aborted at script/use-mojo.pl line 3.

Hmm well, ok, let's manually include the missing module:

> pp -M Mojolicious -o use-mojo.exe use-mojo.pl

> use-mojo.exe
Can't locate Mojo.pm in @INC (@INC contains: CODE(0x1360614) C:\DOCUME
+~1\hue\CONFIG~1\Temp\par-hue\cache-32243079ff9cdbe34fb6720d972d912551
+5e65d7\inc\lib C:\DOCUME~1\hue\CONFIG~1\Temp\par-hue\cache-32243079ff
+9cdbe34fb6720d972d9125515e65d7\inc CODE(0x121b2fc) CODE(0x121b5fc)) a
+t Mojo/Base.pm line 31.
BEGIN failed--compilation aborted at Mojolicious.pm line 2.
Compilation failed in require at Mojo/Base.pm line 31.
BEGIN failed--compilation aborted at Mojolicious/Lite.pm line 2.
Compilation failed in require at script/use-mojo.pl line 3.
BEGIN failed--compilation aborted at script/use-mojo.pl line 3.

Ok, maybe it's another kind of problem. Let's try with -I:

> perl -MMojolicious -MMojo -le "print $INC{'Mojolicious.pm'}; print $
+INC{'Mojo.pm'}"
C:/strawberry/perl/site/lib/Mojolicious.pm
C:/strawberry/perl/site/lib/Mojo.pm

> pp -I C:/strawberry/perl/site/lib -o use-mojo.exe use-mojo.pl

> use-mojo.exe
Can't locate Mojolicious.pm in @INC (@INC contains: CODE(0x13ddff4) C:
+\DOCUME~1\hue\CONFIG~1\Temp\par-hue\cache-362b7854cb57139506964b066a4
+ae6568fad1611\inc\lib C:\DOCUME~1\hue\CONFIG~1\Temp\par-hue\cache-362
+b7854cb57139506964b066a4ae6568fad1611\inc CODE(0x121b2fc) CODE(0x121b
+5fc)) at Mojo/Base.pm line 31.
BEGIN failed--compilation aborted at Mojolicious/Lite.pm line 2.
Compilation failed in require at script/use-mojo.pl line 3.
BEGIN failed--compilation aborted at script/use-mojo.pl line 3.

Uh, I'm back to square 1. Same result if I try with backslashes.

Well, at this point I made a .bat file with a bunch of modules and tried with it. This is the batch:

pp ^
  -I . ^
  -I C:\strawberry\perl\site\lib ^
  -I C:\strawberry\perl\site ^
  -M Mojolicious ^
  -M Mojo ^
  -M Mojo::Asset ^
  -M Mojo::Base ^
  -M Mojo::ByteStream ^
  -M Mojo::Cache ^
  -M Mojo::Client ^
  -M Mojo::Command ^
  -M Mojo::Content ^
  -M Mojo::Cookie ^
  -M Mojo::CookieJar ^
  -M Mojo::Date ^
  -M Mojo::DOM ^
  -M Mojo::Exception ^
  -M Mojo::Headers ^
  -M Mojo::HelloWorld ^
  -M Mojo::Home ^
  -M Mojo::IOLoop ^
  -M Mojo::JSON ^
  -M Mojo::Loader ^
  -M Mojo::Log ^
  -M Mojo::Message ^
  -M Mojo::Parameters ^
  -M Mojo::Path ^
  -M Mojo::Server ^
  -M Mojo::Template ^
  -M Mojo::Transaction ^
  -M Mojo::Upload ^
  -M Mojo::URL ^
  -M Mojo::Util ^
  -o use-mojo.exe use-mojo.pl

And the output:

> use-mojo.exe
script: No such file or directory at Mojo/Home.pm line 25
BEGIN failed--compilation aborted at script/use-mojo.pl line 3.

It seems I've advanced a little, but I guess there's a better (less explicit/verbose) way to build the .exe and I shouldn't be using this batch file.

I've googled around (with and without site:perlmonks.org) to no avail. I guess I must be missing some bit along the way but can't figure out which one it is. Any idea? Thanks!

[Anonymous Monk]

pp comes with options
Read more... (1122 Bytes)
Now regarding error script: No such file or directory at Mojo/Home.pm line 25 This is line 25 of Mojo/Home.pm

  # Environment variable
  if ($ENV{MOJO_HOME}) {
    my @parts = File::Spec->splitdir(abs_path $ENV{MOJO_HOME});
    $self->{_parts} = \@parts;
    return $self;
  }

So there is line number confusion.

Using

require Mojolicious::Lite;

seems to remedy this situation. Oddly BEGIN { eval "use Mojolicious::Lite;" } also works.

Thats bizzare, you should submit a bug report :)

[Hue-Bond]

All of -n -x, -x and -c do the trick and take me to the Mojo/Home.pm line 25 error. I hadn't noticed that the error was precisely in that file: as soon as you pointed it out I remembered that the test t/mojo/home.t had failed before the (forced) installation. Thankfully, Google has something to say about it so I'll now concentrate on that.

Thank you!

[Hue-Bond]

No line number confusion: abs_path was dying. Turns out that the failing test had nothing to do with it - the problem is caused due to an interference with PAR's runtime environment. Prepending a bit of code to the main script works around the problem:

use File::Spec;
BEGIN {
   if ($ENV{'PAR_TEMP'}) {
       my $dir = File::Spec->catfile ($ENV{'PAR_TEMP'}, 'inc');
       chdir $dir or die "chdir: '$dir': $!";
   }
}

We go to the parent directory of script so now it's properly detected.