How to automatically install all modules required by a script from CPAN?

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11-17-2012

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How to automatically install all modules required by a script from CPAN?

Having a script.pl how can I automatically download from CPAN all required modules and install and update as required? Something like "emerge -uDNav world" for the perl?

---------- Post updated at 05:38 PM ---------- Previous update was at 05:28 PM ----------

Doesn't matter I've found it

Code:

cat *.pl  | grep "^use " | tr ';' ' ' | while read a b c; do echo $b; done | sort -iu | while read a; do cpan $a; done

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11-18-2012

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In the CPAN shell:

Code:

o conf prerequisites_policy follow
o conf build_requires_install_policy yes 
o conf commit

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11-18-2012

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Quote:

Originally Posted by radoulov

In the CPAN shell:

Code:

o conf prerequisites_policy follow
o conf build_requires_install_policy yes 
o conf commit

It's not working:

Code:

# perl backup.pl 
Can't locate Crypt/OpenSSL/PBKDF2.pm in @INC

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11-19-2012

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Posting the result of cpan <module_name> will be helpful (we don't know what backup.pl contains).

If need to automate the download of the dependencies, you may need to configure the Internet connection:

Code:

o conf init connect_to_internet_ok

or

Code:

o conf init urllist

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11-19-2012

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Quote:

Originally Posted by radoulov

Posting the result of cpan <module_name> will be helpful (we don't know what backup.pl contains).

Code:

# cpan Crypt/OpenSSL/PBKDF2.pm
Going to read '/root/.cpan/Metadata'
  Database was generated on Sun, 18 Nov 2012 00:55:04 GMT
Running install for module 'Crypt::OpenSSL::PBKDF2'
Running make for S/SK/SKUPSY/OpenSSL/Crypt-OpenSSL-PBKDF2-0.02.tar.gz
Checksum for /root/.cpan/sources/authors/id/S/SK/SKUPSY/OpenSSL/Crypt-OpenSSL-PBKDF2-0.02.tar.gz ok

  CPAN.pm: Going to build S/SK/SKUPSY/OpenSSL/Crypt-OpenSSL-PBKDF2-0.02.tar.gz

Checking if your kit is complete...
Looks good
Writing Makefile for Crypt::OpenSSL::PBKDF2
Writing MYMETA.yml
cp PBKDF2.pm blib/lib/Crypt/OpenSSL/PBKDF2.pm
AutoSplitting blib/lib/Crypt/OpenSSL/PBKDF2.pm (blib/lib/auto/Crypt/OpenSSL/PBKDF2)
/usr/bin/perl /usr/share/perl/5.14/ExtUtils/xsubpp  -typemap /usr/share/perl/5.14/ExtUtils/typemap -typemap typemap  PBKDF2.xs > PBKDF2.xsc && mv PBKDF2.xsc PBKDF2.c
Please specify prototyping behavior for PBKDF2.xs (see perlxs manual)
cc -c  -I. -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g   -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" -fPIC "-I/usr/lib/perl/5.14/CORE"   PBKDF2.c
PBKDF2.c:67:25: fatal error: openssl/ssl.h: No such file or directory
compilation terminated.
make: *** [PBKDF2.o] Error 1
  SKUPSY/OpenSSL/Crypt-OpenSSL-PBKDF2-0.02.tar.gz
  /usr/bin/make -- NOT OK
'YAML' not installed, will not store persistent state
Running make test
  Can't test without successful make
Running make install
  Make had returned bad status, install seems impossible

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11-19-2012

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I believe that you need the OpenSSL headers and you need to install them manually. Use CPAN to install Perl modules, not OS packages.

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11-19-2012

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Quote:

Originally Posted by radoulov

I believe that you need the OpenSSL headers and you need to install them manually. Use CPAN to install Perl modules, not OS packages.

Thank you, it was solved installing the SSL headers

Code:

sudo apt-get install libssl-dev

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