e955926ee9
- Use `mktemp -d` to generate a temporary directory, only if user doesn't use `--download-dir` - Clean-up the temporary directory using `trap`. Remove other `rm` calls from code since they're not necessary anymore - Run download in a subshell, so after finishing it the script is still on the directory where the user ran the script. Fix `./install --dir .` usage - Fix backup of old Babashka install
141 lines
3.6 KiB
Bash
Executable file
141 lines
3.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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version=""
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checksum=""
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static_binary="false"
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default_install_dir="/usr/local/bin"
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install_dir="$default_install_dir"
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download_dir=""
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print_help() {
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echo "Installs latest (or specific) version of babashka. Installation directory defaults to /usr/local/bin."
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echo -e
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echo "Usage:"
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echo "install [--dir <dir>] [--download-dir <download-dir>] [--version <version>] [--checksum <checksum>] [--static]"
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echo -e
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echo "Defaults:"
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echo " * Installation directory: ${default_install_dir}"
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echo " * Download directory: temporary"
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if [[ -z "$checksum" ]]; then
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echo " * Checksum: no"
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else
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echo " * Checksum: ${checksum}"
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fi
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echo " * Static binary: ${static_binary}"
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echo " * Version: <Latest release on github>"
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exit 1
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}
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while [[ $# -gt 0 ]]
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do
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key="$1"
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case "$key" in
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--dir)
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install_dir="$2"
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shift
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shift
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;;
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--download-dir)
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download_dir="$2"
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shift
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shift
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;;
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--version)
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version="$2"
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shift
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shift
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;;
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--checksum)
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checksum="$2"
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shift
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shift
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;;
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--static)
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static_binary="true"
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shift
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;;
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*) # unknown option
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print_help
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shift
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;;
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esac
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done
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if [[ -z "$download_dir" ]]; then
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download_dir="$(mktemp -d)"
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trap 'rm -rf "$download_dir"' EXIT
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fi
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if [[ "$checksum" != "" ]] && [[ "$version" == "" ]]; then
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>&2 echo "Options --checksum and --version should be provided together!"
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exit 1
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fi
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if [[ "$version" == "" ]]; then
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version="$(curl -sL https://raw.githubusercontent.com/babashka/babashka/master/resources/BABASHKA_RELEASED_VERSION)"
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fi
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case "$(uname -s)" in
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Linux*) platform=linux;;
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Darwin*) platform=macos;;
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esac
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case "$(uname -m)" in
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aarch64) arch=aarch64;;
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esac
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arch="${arch:-amd64}"
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# Ugly ugly conversion of version to a comparable number
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IFS='.' read -ra VER <<< "$version"
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vernum=$(printf "%03d%03d%03d" "${VER[0]}" "${VER[1]}" "${VER[2]}")
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if [[ $vernum -le 000002013 ]]; then
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ext="zip"
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util="$(which unzip) -qqo"
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else
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ext="tar.gz"
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util="$(which tar) -zxf"
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fi
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if [[ "$static_binary" == "true" ]]; then
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if [[ "$platform" != "linux" ]]; then
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>&2 echo "Static binaries are only available in Linux platform!"
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exit 1
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fi
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filename="babashka-$version-$platform-$arch-static."$ext
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else
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filename="babashka-$version-$platform-$arch."$ext
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fi
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download_url="https://github.com/babashka/babashka/releases/download/v$version/$filename"
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# Running this part in a subshell so when it finishes we go back to the previous directory
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mkdir -p "$download_dir" && (
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cd "$download_dir"
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echo -e "Downloading $download_url to $download_dir"
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curl -o "$filename" -sL "$download_url"
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if [[ -n "$checksum" ]]; then
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if ! echo "$checksum *$filename" | shasum -a 256 --check --status; then
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>&2 echo "Failed checksum on $filename"
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>&2 echo "Got: $(shasum -a 256 "$filename" | cut -d' ' -f1)"
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>&2 echo "Expected: $checksum"
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exit 1
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fi
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fi
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$util "$filename"
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rm -f "$filename"
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)
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if [[ "$download_dir" != "$install_dir" ]]
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then
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mkdir -p "$install_dir"
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if [ -f "$install_dir/bb" ]; then
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echo "Moving $install_dir/bb to $install_dir/bb.old"
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mv -f "$install_dir/bb" "$install_dir/bb.old"
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fi
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mv -f "$download_dir/bb" "$install_dir/bb"
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fi
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echo "Successfully installed bb in $install_dir"
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