I recently startet to use a small wrapper script to setup the
environment (including cpan module installation with cpanfile and
cpanm) to allow our jenkins server to perform clean testing of
the git master.
Everything needed apart from already installed system perl is
stuffed in ./local and used with eval `perl -Mlocal::lib=local`
to setup the env and exec the actuall app (in our case prove for
testing or hypnotoad for production serving).
Works out very well, as also devs can now simply setup a new
environment in one shot.
Does not fit in every development or deployment process, but for
us it seems to work out for now.
BR
+rl
On Sat, Oct 18, 2014 at 9:12 AM, Jan Henning Thorsen
<[email protected] <mailto:[email protected]>> wrote:
perl -I is not inherited through exec(). You're better off
using:
PERL5LIB=$PWD/perl5/lib/perl5 $PWD/perl5/bin/hypnotoad
This way, PERL5LIB is set for the current process and all the
sub processes started with exec(). Note the $PWD part, which
will make sure it's set to an absolute path.
On Saturday, October 18, 2014 6:01:15 AM UTC+2, perlpong wrote:
This is not a bug-report or a request for help, I am just
sharing my experience.
I install Mojolicious inside an app-local directory using
cpanm's "-L" switch:
.
|─- perl5/
| |-- bin/
| | |-- hypnotoad
| | |-- mojo
| | |-- morbo
| |-- lib/
| |-- perl5/
| |-- Mojo/
| |-- Mojo.pm
| |-- Mojolicious/
| |-- Mojolicious.pm
|-- script/
|-- app.pl <http://app.pl>
I run hypnotoad with Perl's "-I" flag to append my
local-lib directory to the beginning of @INC:
perl -Iperl5/lib/perl5 perl5/bin/hypnotoad
./script/myapp.pl <http://myapp.pl>
My app logs an error related to Mojolicious:
Can't locate object method "every_param" via package
"Mojo::Parameters"
After investigating I realise that my "global" install of
Mojolicious is being loaded instead of my local one.
If I dump @INC at the beginning of the hypnotoad script,
it produces this:
(
"/home/ac/apps/MyApp/perl5/bin/../lib",
"perl5/lib/perl5/i686-linux",
"perl5/lib/perl5",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/site_perl/5.16.1/i686-linux",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/site_perl/5.16.1",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/5.16.1/i686-linux",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/5.16.1",
".",
)
(
"/home/ac/apps/MyApp/perl5/bin/../lib",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/site_perl/5.16.1/i686-linux",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/site_perl/5.16.1",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/5.16.1/i686-linux",
"/home/ac/perl5/perlbrew/perls/perl-5.16.1/lib/5.16.1",
".",
)
It appears that the process restarts itself, the second
time without my modified @INC.
Looking inside Mojo::Server::Hypnotoad, I notice this:
$ENV{HYPNOTOAD_EXE} ||= $0;
...
# Clean start (to make sure everything works)
die "Can't exec: $!" if !$ENV{HYPNOTOAD_REV}++ &&
!exec $ENV{HYPNOTOAD_EXE};
So my workaround is to manually set the HYPNOTOAD_EXE
environment variable:
export HYPNOTOAD_EXE="perl -Iperl5/lib/perl5
perl5/bin/hypnotoad"
perl -Iperl5/lib/perl5 perl5/bin/hypnotoad
./script/myapp.pl <http://myapp.pl>
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