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DevOps-Bash-tools/perl_cpanm_install_if_absen...

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#!/usr/bin/env bash
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2019-02-15 13:48:29 +0000 (Fri, 15 Feb 2019)
#
# https://github.com/harisekhon/bash-tools
#
# License: see accompanying Hari Sekhon LICENSE file
#
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
# https://www.linkedin.com/in/harisekhon
#
set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
echo "Installing CPAN Modules listed in file(s): $*"
opts=""
if [ -n "${TRAVIS:-}" ]; then
echo "running in quiet mode"
opts="-q"
fi
if [ "$(uname -s)" = "Darwin" ]; then
# needed to build Crypt::SSLeay
export OPENSSL_INCLUDE=/usr/local/opt/openssl/include
export OPENSSL_LIB=/usr/local/opt/openssl/lib
fi
cpan_modules="$(cat "$@" | sed 's/#.*//; /^[[:space:]]*$$/d' | sort -u)"
SUDO=""
if [ $EUID != 0 ] &&
[ -z "${PERLBREW_PERL:-}" ]; then
SUDO=sudo
fi
for cpan_module in $cpan_modules; do
perl_module="${cpan_module%%@*}"
if ! perl -e "use $perl_module;" &>/dev/null; then
echo "Installing $perl_module"
if [ "$(uname -s)" = "Darwin" ]; then
# need to send OPENSSL_INCLUDE and OPENSSL_LIB through sudo explicitly
$SUDO \
OPENSSL_INCLUDE="$OPENSSL_INCLUDE" \
OPENSSL_LIB="$OPENSSL_LIB" \
"${CPANM:-cpanm}" $opts --notest "$cpan_module"
else
$SUDO "${CPANM:-cpanm}" $opts --notest "$cpan_module"
fi
fi
done