cache-apt-pkgs-action/install_and_cache_pkgs.sh

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#!/bin/bash
# Directory that holds the cached packages.
cache_dir=$1
# List of the packages to use.
packages="${@:2}"
mkdir -p $cache_dir
for package in $packages; do
cache_filepath=$cache_dir/$package.tar.gz
echo "* Clean installing $package... "
sudo apt-get --yes install $package
echo "* Caching $package to $cache_filepath..."
# Pipe all package files (no folders) to Tar.
dpkg -L $package |
while IFS= read -r f; do
if test -f $f; then echo $f; fi;
done |
xargs tar -czf $cache_filepath -C /
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done
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echo "Action complete. ${#packages[@]} package(s) installed and cached."