From b7763843af63bbc186f08701a62c19ea96fb7e3c Mon Sep 17 00:00:00 2001
From: Steve Francis <steve.francis@talos-systems.com>
Date: Wed, 30 Nov 2022 09:28:43 -0800
Subject: [PATCH] feat: add install script that improves talosctl installation
 user experience This install script detects the platform and architecture,
 and downloads the correct talosctl, and checks the gpg checksums. It also
 installs and chmods the binary.

Signed-off-by: Andrew Rynhard <andrew@rynhard.io>
---
 website/static/install | 135 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100755 website/static/install

diff --git a/website/static/install b/website/static/install
new file mode 100755
index 000000000..b6f2c24ea
--- /dev/null
+++ b/website/static/install
@@ -0,0 +1,135 @@
+#!/usr/bin/env sh
+
+set -eu
+
+INSTALLPATH=${INSTALLPATH:-/usr/local/bin}
+
+happyexit() {
+  echo "Installed version:"
+  echo "$(talosctl version 2>/dev/null )"
+  echo ""
+  echo "Now run:"
+  echo ""
+  echo "  talosctl cluster create                  # install a local test cluster"
+  echo "  talosctl dashboard                       # If you have created a cluster, launch the dashboard"
+  echo ""
+  echo "Looking for more? Visit https://talos.dev/latest"
+  echo ""
+  exit 0
+}
+
+validate_checksum() {
+  filename=$1
+  url="https://github.com/siderolabs/talos/releases/latest/download/sha256sum.txt"
+  SHA=$(curl --proto '=https' --tlsv1.2 -sSfL "${url}" | grep "${filename}" | awk '{print $1 }')
+  echo ""
+  echo "Validating checksum..."
+
+  case $checksumbin in
+    *openssl)
+      checksum=$($checksumbin dgst -sha256 "${filename}" | sed -e 's/^.* //')
+      ;;
+    *shasum)
+      checksum=$($checksumbin -a256 "${filename}" | sed -e 's/ .*$//')
+      ;;
+  esac
+
+  if [ "$checksum" != "$SHA" ]; then
+    echo "Checksum validation failed." >&2
+    return 1
+  fi
+  echo "Checksum valid."
+  return 0
+}
+
+OS=$(uname -s)
+arch=$(uname -m)
+cli_arch=""
+case $OS in
+  CYGWIN* | MINGW64*)
+    OS=windows-amd64.exe
+    ;;
+  Darwin | Linux | FreeBSD)
+    case $arch in
+      x86_64)
+        cli_arch=amd64
+        ;;
+      armv8*)
+        cli_arch=arm64
+        ;;
+      aarch64*)
+        cli_arch=arm64
+        ;;
+      amd64|arm64)
+        cli_arch=$arch
+        ;;
+      *)
+        echo "There is no talosctl $OS support for $arch. Please open an issue with your platform details."
+        exit 1
+        ;;
+    esac
+    ;;
+  *)
+    echo "There is no talosctl support for $OS/$arch. Please open an issue with your platform details."
+    exit 1
+    ;;
+esac
+OS=$(echo $OS | tr '[:upper:]' '[:lower:]')
+
+
+tmpdir=$(mktemp -d /tmp/talosctl.XXXXXX)
+srcfile="talosctl-${OS}"
+if [ -n "${cli_arch}" ]; then
+  srcfile="${srcfile}-${cli_arch}"
+fi
+
+
+
+dstfile="${INSTALLPATH}/talosctl"
+
+checksumbin=$(command -v openssl) || checksumbin=$(command -v shasum) || {
+  echo "Failed to find checksum binary. Please install openssl or shasum."
+  echo ""
+  echo "You can also elect to just download/install https://github.com/siderolabs/talos/releases/latest/download/${srcfile}"
+  echo "into ${dstfile}"
+  exit 1
+}
+
+url="https://github.com/siderolabs/talos/releases/latest/download/${srcfile}"
+
+if [ -e "${dstfile}" ]; then
+    echo ""
+    echo "talosctl was already downloaded;  🎉"
+    echo ""
+    echo "To force re-downloading, delete '${dstfile}' then run me again."
+    (
+      rm -rf "${tmpdir}"
+    )
+    happyexit
+fi
+
+(
+  cd "$tmpdir"
+
+  echo "Downloading ${srcfile}..."
+  curl --proto '=https' --tlsv1.2 -fLO "${url}"
+  echo "Download complete!"
+
+  if ! validate_checksum "${srcfile}"; then
+    exit 1
+  fi
+  echo ""
+  exit
+)
+
+(
+  mv "${tmpdir}/${srcfile}" "${dstfile}"
+  chmod +x "${dstfile}"
+)
+
+
+rm -r "$tmpdir"
+
+echo "talosctl was successfully installed 🎉"
+echo ""
+happyexit