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https://github.com/awalsh128/cache-apt-pkgs-action.git
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70 lines
1.8 KiB
Bash
Executable file
70 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
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# Include library.
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script_dir="$(dirname -- "$(realpath -- "${0}")")"
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source "${script_dir}/lib.sh"
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# Directory that holds the cached packages.
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cache_dir=$1
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# Version of the cache to create or load.
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version=$2
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# List of the packages to use.
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input_packages="${@:3}"
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# Trim commas, excess spaces, and sort.
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packages="$(normalize_package_list "${input_packages}")"
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# Create cache directory so artifacts can be saved.
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mkdir -p $cache_dir
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echo -n "Validating action arguments (version='$version', packages='$packages')...";
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if grep -q " " <<< "${cache_version}"; then
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echo "aborted."
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echo "Version value '$version' cannot contain spaces." >&2
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exit 1
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fi
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# Is length of string zero?
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if test -z "${packages}"; then
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echo "aborted."
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echo "Packages argument cannot be empty." >&2
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exit 2
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fi
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echo "done."
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versioned_packages=""
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echo -n "Verifying packages..."
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for package in ${packages}; do
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if test ! "$(apt show "${package}")"; then
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echo "aborted."
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echo "Package '$package' not found." >&2
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exit 3
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fi
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get_package_name_ver "${package}" # -> package_name, package_ver
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versioned_packages="${versioned_packages} ${package_name}=${package_ver}"
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done
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echo "done."
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# Abort on any failure at this point.
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set -e
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echo "Creating cache key..."
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# TODO Can we prove this will happen again?
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normalized_versioned_packages="$(normalize_package_list "${versioned_packages}")"
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echo "- Normalized package list is '${normalized_versioned_packages}'."
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value="$(echo "${normalized_versioned_packages} @ ${cache_version}")"
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echo "- Value to hash is '${value}'."
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key="$(echo "${value}" | md5sum | /bin/cut -f1 -d' ')"
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echo "- Value hashed as '${key}'."
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echo "done."
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key_filepath="$cache_dir/cache_key.md5"
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echo $key > $key_filepath
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echo "Hash value written to $key_filepath"
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