feat: implement download script

bin/download

@@ -10,14 +10,13 @@ source "${plugin_dir}/lib/utils.bash"
 
 mkdir -p "$ASDF_DOWNLOAD_PATH"
 
-# TODO: Adapt this to proper extension and adapt extracting strategy.
-release_file="$ASDF_DOWNLOAD_PATH/$TOOL_NAME-$ASDF_INSTALL_VERSION.tar.gz"
+release_file="$ASDF_DOWNLOAD_PATH/$TOOL_NAME-$ASDF_INSTALL_VERSION.tgz"
 
-# Download tar.gz file to the download directory
+# Download tgz file to the download directory
 download_release "$ASDF_INSTALL_VERSION" "$release_file"
 
-#  Extract contents of tar.gz file into the download directory
+#  Extract contents of tgz file into the download directory
 tar -xzf "$release_file" -C "$ASDF_DOWNLOAD_PATH" --strip-components=1 || fail "Could not extract $release_file"
 
-# Remove the tar.gz file since we don't need to keep it
+# Remove the tgz file since we don't need to keep it
 rm "$release_file"

lib/utils.bash

@@ -2,8 +2,6 @@
 
 set -euo pipefail
 
-# TODO: Ensure this is the correct GitHub homepage where releases can be downloaded for spark.
-GH_REPO="https://github.com/apache/spark"
 TOOL_NAME="spark"
 TOOL_TEST="spark-shell --version"
 
@@ -12,13 +10,6 @@ fail() {
 	exit 1
 }
 
-curl_opts=(-fsSL)
-
-# NOTE: You might want to remove this if spark is not hosted on GitHub releases.
-if [ -n "${GITHUB_API_TOKEN:-}" ]; then
-	curl_opts=("${curl_opts[@]}" -H "Authorization: token $GITHUB_API_TOKEN")
-fi
-
 sort_versions() {
 	sed 'h; s/[+-]/./g; s/.p\([[:digit:]]\)/.z\1/; s/$/.z/; G; s/\n/ /' |
 		LC_ALL=C sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n | awk '{print $2}'
@@ -35,15 +26,16 @@ list_all_versions() {
 }
 
 download_release() {
-	local version filename url
+	local version filename base_version url
 	version="$1"
 	filename="$2"
 
-	# TODO: Adapt the release URL convention for spark
-	url="$GH_REPO/archive/v${version}.tar.gz"
+  base_version=$(echo "$version" | cut -d'-' -f1)
+
+	url="https://archive.apache.org/dist/spark/spark-${base_version}/spark-${version}.tgz"
 
 	echo "* Downloading $TOOL_NAME release $version..."
-	curl "${curl_opts[@]}" -o "$filename" -C - "$url" || fail "Could not download $url"
+	curl -fsSL -o "$filename" -C - "$url" || fail "Could not download $url"
 }
 
 install_version() {