From ec8f13a555b4330ce103289a360d345568f638d0 Mon Sep 17 00:00:00 2001
From: Tim Burks <timburks@google.com>
Date: Fri, 10 Mar 2023 11:11:41 -0800
Subject: [PATCH] Add downloadLatest.sh script

---
 downloadLatest.sh | 97 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100755 downloadLatest.sh

diff --git a/downloadLatest.sh b/downloadLatest.sh
new file mode 100755
index 00000000..cd23bccc
--- /dev/null
+++ b/downloadLatest.sh
@@ -0,0 +1,97 @@
+#!/bin/sh
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script downloads and installs the latest versions of the registry-experimental tools.
+# Binaries are installed in the user's home directory in $HOME/.registry/bin.
+set -e
+
+# Determine the operating system.
+OS="$(uname)"
+if [ "${OS}" = "Darwin" ] ; then
+  OSEXT="Darwin"
+else
+  OSEXT="linux"
+fi
+
+# Determine the latest registry-experimental version by version number ignoring alpha, beta, and rc versions.
+if [ "${REGISTRY_EXPERIMENTAL_VERSION}" = "" ] ; then
+  REGISTRY_EXPERIMENTAL_VERSION="$(curl -sL https://github.com/apigee/registry-experimental/releases/latest | \
+                  grep -i release | grep -o 'v[0-9].[0-9]*.[0-9]*' | tail -1)"
+  REGISTRY_EXPERIMENTAL_VERSION="${REGISTRY_EXPERIMENTAL_VERSION##*/}"
+fi
+
+LOCAL_ARCH=$(uname -m)
+if [ "${TARGET_ARCH}" ]; then
+    LOCAL_ARCH=${TARGET_ARCH}
+fi
+
+case "${LOCAL_ARCH}" in
+  x86_64|amd64|arm64)
+    REGISTRY_ARCH=amd64
+    ;;
+  armv8*|aarch64*)
+    REGISTRY_ARCH=arm64
+    ;;
+  *)
+    echo "This system's architecture, ${LOCAL_ARCH}, isn't supported"
+    exit 1
+    ;;
+esac
+
+if [ "${REGISTRY_EXPERIMENTAL_VERSION}" = "" ] ; then
+  printf "Unable to get latest registry-experimental version. Set REGISTRY_EXPERIMENTAL_VERSION env var and re-run. For example: export REGISTRY_EXPERIMENTAL_VERSION=v1.104"
+  exit 1;
+fi
+
+# Download the registry-experimental release archive.
+tmp=$(mktemp -d /tmp/registry-experimental.XXXXXX)
+NAME="registry-experimental_$REGISTRY_EXPERIMENTAL_VERSION"
+
+cd "$tmp" || exit
+FILENAME="registry-experimental_${REGISTRY_EXPERIMENTAL_VERSION##v}_${OSEXT}_${REGISTRY_ARCH}.tar.gz"
+URL="https://github.com/apigee/registry-experimental/releases/download/${REGISTRY_EXPERIMENTAL_VERSION}/${FILENAME}"
+echo $URL
+
+download_archive() {
+  printf "\nDownloading %s from %s ...\n" "$NAME" "$URL"
+  if ! curl -o /dev/null -sIf "$URL"; then
+    printf "\n%s is not found, please specify a valid REGISTRY_EXPERIMENTAL_VERSION and TARGET_ARCH\n" "$URL"
+    exit 1
+  fi
+  curl -fsLO "$URL"
+  tar xzf "${FILENAME}"
+}
+
+download_archive
+
+printf ""
+printf "\nregistry-experimental %s Download Complete!\n" "$REGISTRY_EXPERIMENTAL_VERSION"
+printf "\n"
+
+# Setup registry-experimental
+cd "$HOME" || exit
+mkdir -p "$HOME/.registry/bin"
+mv "${tmp}/registry-experimental" "$HOME/.registry/bin"
+mv "${tmp}/registry-connect" "$HOME/.registry/bin"
+printf "Copied registry-experimental tools into the $HOME/.registry/bin folder.\n"
+chmod +x "$HOME/.registry/bin/registry-experimental"
+chmod +x "$HOME/.registry/bin/registry-connect"
+
+# Print message
+printf "\n"
+printf "Add the registry tools to your path with:"
+printf "\n"
+printf "  export PATH=\$PATH:\$HOME/.registry/bin \n"
+printf "\n"