From 4f84f1dc77f7b0592873d45c42153815c32aab5d Mon Sep 17 00:00:00 2001
From: Giorgio Garasto <giorgio@garasto.me>
Date: Wed, 4 Oct 2023 21:55:10 +0200
Subject: [PATCH] feat: adapt download and install steps

---
 bin/download    |  5 ++---
 contributing.md |  1 -
 lib/utils.bash  | 34 ++++++++++++++++++++++++++++------
 3 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/bin/download b/bin/download
index c11ee53..7a95973 100755
--- a/bin/download
+++ b/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"
 
 # Download tar.gz file to the download directory
 download_release "$ASDF_INSTALL_VERSION" "$release_file"
 
-#  Extract contents of tar.gz file into the download directory
-tar -xzf "$release_file" -C "$ASDF_DOWNLOAD_PATH" --strip-components=1 || fail "Could not extract $release_file"
+# Extract contents of tar.gz file into the download directory
+tar -xzf "$release_file" -C "$ASDF_DOWNLOAD_PATH" || fail "Could not extract $release_file"
 
 # Remove the tar.gz file since we don't need to keep it
 rm "$release_file"
diff --git a/contributing.md b/contributing.md
index 04b984a..1ffadec 100644
--- a/contributing.md
+++ b/contributing.md
@@ -5,7 +5,6 @@ Testing Locally:
 ```shell
 asdf plugin test <plugin-name> <plugin-url> [--asdf-tool-version <version>] [--asdf-plugin-gitref <git-ref>] [test-command*]
 
-# TODO: adapt this
 asdf plugin test traefik https://github.com/Dabolus/asdf-traefik.git "traefik --help"
 ```
 
diff --git a/lib/utils.bash b/lib/utils.bash
index 107d02a..4bd2825 100644
--- a/lib/utils.bash
+++ b/lib/utils.bash
@@ -2,7 +2,6 @@
 
 set -euo pipefail
 
-# TODO: Ensure this is the correct GitHub homepage where releases can be downloaded for traefik.
 GH_REPO="https://github.com/traefik/traefik"
 TOOL_NAME="traefik"
 TOOL_TEST="traefik --help"
@@ -27,22 +26,45 @@ sort_versions() {
 list_github_tags() {
 	git ls-remote --tags --refs "$GH_REPO" |
 		grep -o 'refs/tags/.*' | cut -d/ -f3- |
-		sed 's/^v//' # NOTE: You might want to adapt this sed to remove non-version strings from tags
+		sed 's/^v//'
 }
 
 list_all_versions() {
-	# TODO: Adapt this. By default we simply list the tag names from GitHub releases.
-	# Change this function if traefik has other means of determining installable versions.
 	list_github_tags
 }
 
+get_platform() {
+	# Get uname and lowercase it with awk
+	local os=$(uname | awk '{print tolower($0)}')
+	# Make sure the platform is supported
+	if [[ "$os" == "darwin" || "$os" == "linux" || "$os" == "freebsd" ]]; then
+		echo "$os"
+	else
+		>&2 echo "unsupported os: ${os}" && exit 1
+	fi
+}
+
+get_arch() {
+  local arch=$(uname -m)
+	if [[ "$arch" == "x86_64" || "$arch" == "amd64" ]]; then
+		echo "amd64"
+	elif [[ "$arch" == "arm64" || "$arch" == "aarch64" || "$arch" == "aarch64_be" || "$arch" == "armv8b" || "$arch" == "armv8l" ]]; then
+		echo "arm64"
+	elif [[ "$arch" == "armv6" || "$arch" == "armv6l" ]]; then
+		echo "armv6"
+	elif [[ "$arch" == "i386" || "$arch" == "i686" ]]; then
+		echo "386"
+	else
+		>&2 echo "unsupported arch: ${arch}" && exit 1
+	fi
+}
+
 download_release() {
 	local version filename url
 	version="$1"
 	filename="$2"
 
-	# TODO: Adapt the release URL convention for traefik
-	url="$GH_REPO/archive/v${version}.tar.gz"
+	url="$GH_REPO/releases/download/v${version}/traefik_v${version}_$(get_platform)_$(get_arch).tar.gz"
 
 	echo "* Downloading $TOOL_NAME release $version..."
 	curl "${curl_opts[@]}" -o "$filename" -C - "$url" || fail "Could not download $url"