initial commit

bin/download

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+current_script_path=${BASH_SOURCE[0]}
+plugin_dir=$(dirname "$(dirname "$current_script_path")")
+
+# shellcheck source=../lib/utils.bash
+source "${plugin_dir}/lib/utils.bash"
+
+mkdir -p "$ASDF_DOWNLOAD_PATH"
+
+case $(uname -m) in
+  x86_64)
+    ARCH=amd64
+    ;;
+  arm64|aarch64)
+    ARCH=arm64
+    ;;
+  arm)
+    ARCH=arm
+    ;;
+  *)
+    exit -1
+    ;;
+esac
+
+OS="$(uname -s | tr '[[:upper:]]' '[[:lower:]]')"
+case $OS in
+  linux|darwin)
+    ;;
+  *)
+    exit -1
+    ;;
+esac
+
+FILES=(
+    "flux_${ASDF_INSTALL_VERSION}_${OS}_${ARCH}.tar.gz"
+)
+
+for FILE in "${FILES[@]}"; do
+  # Download tar.gz file to the download directory
+  download_release "$ASDF_INSTALL_VERSION" "$FILE"
+  
+  #  Extract contents of tar.gz file into the download directory
+  tar -xzf "$FILE" -C "$ASDF_DOWNLOAD_PATH" || fail "Could not extract $FILE"
+  chmod +x "${ASDF_DOWNLOAD_PATH}/flux"
+  
+  # Remove the tar.gz file since we don't need to keep it
+  rm "$FILE"
+done

bin/install

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+current_script_path=${BASH_SOURCE[0]}
+plugin_dir=$(dirname "$(dirname "$current_script_path")")
+
+# shellcheck source=../lib/utils.bash
+source "${plugin_dir}/lib/utils.bash"
+
+install_version "$ASDF_INSTALL_TYPE" "$ASDF_INSTALL_VERSION" "$ASDF_INSTALL_PATH"

bin/list-all

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+current_script_path=${BASH_SOURCE[0]}
+plugin_dir=$(dirname "$(dirname "$current_script_path")")
+
+# shellcheck source=../lib/utils.bash
+source "${plugin_dir}/lib/utils.bash"
+
+list_all_versions | sort_versions | xargs echo
+

lib/utils.bash

@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# TODO: Ensure this is the correct GitHub homepage where releases can be downloaded for <YOUR TOOL>.
+GH_REPO="https://github.com/fluxcd/flux2"
+TOOL_NAME="fluxcd"
+TOOL_TEST="flux"
+
+fail() {
+  echo -e "asdf-$TOOL_NAME: $*"
+  exit 1
+}
+
+curl_opts=(-fsSL)
+
+# NOTE: You might want to remove this if <YOUR TOOL> is not hosted on GitHub releases.
+if [ -n "${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 $2}'
+}
+
+list_github_tags() {
+  git ls-remote --tags --refs "$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
+}
+
+list_all_versions() {
+  # TODO: Adapt this. By default we simply list the tag names from GitHub releases.
+  # Change this function if <YOUR TOOL> has other means of determining installable versions.
+  list_github_tags
+}
+
+download_release() {
+  local version filename url
+  version="$1"
+  filename="$2"
+
+  # TODO: Adapt the release URL convention for <YOUR TOOL>
+  url="$GH_REPO/releases/download/v${version}/${filename}"
+
+  echo "* Downloading $TOOL_NAME release $version: $filename..."
+  curl "${curl_opts[@]}" -o "$filename" -C - "$url" || fail "Could not download $url"
+}
+
+install_version() {
+  local install_type="$1"
+  local version="$2"
+  local install_path="${3%/bin}/bin"
+
+  if [ "$install_type" != "version" ]; then
+    fail "asdf-$TOOL_NAME supports release installs only"
+  fi
+
+  (
+    mkdir -p "$install_path"
+    cp -r "$ASDF_DOWNLOAD_PATH"/* "$install_path"
+
+    # TODO: Assert <YOUR TOOL> executable exists.
+    local tool_cmd
+    tool_cmd="$(echo "$TOOL_TEST" | cut -d' ' -f1)"
+    test -x "$install_path/$tool_cmd" || fail "Expected $install_path/$tool_cmd to be executable."
+
+    echo "$TOOL_NAME $version installation was successful!"
+  ) || (
+    rm -rf "$install_path"
+    fail "An error occurred while installing $TOOL_NAME $version."
+  )
+}