Working on download script

Makefile

@@ -28,7 +28,7 @@ build-local:
 build-release:
 	# make sure to always set version with vX.X.X
 	docker build -t rosetta-bitcoin:$(version) .;
-	docker save rosetta-bitcoin:$(version) | gzip > rosetta-bitcoin.tar.gz;docker load --input rosetta-bitcoin.tar.gz;
+	docker save rosetta-bitcoin:$(version) | gzip > rosetta-bitcoin-$(version).tar.gz;
 
 pull-remote:
 	curl -L https://github.com/coinbase/rosetta-bitcoin/releases/latest/download/rosetta-bitcoin.tar.gz -o rosetta-bitcoin.tar.gz;

install.sh

@@ -0,0 +1,218 @@
+#!/bin/sh
+# Copyright 2020 Coinbase, Inc.
+#
+# 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.
+
+set -e
+
+# Inspired by: https://github.com/golangci/golangci-lint/blob/master/install.sh
+
+usage() {
+  this=$1
+  cat <<EOF
+$this: download pre-compiled Docker images for coinbase/rosetta-bitcoin 
+
+Usage: $this [-d]
+  -d turns on debug logging
+
+EOF
+  exit 2
+}
+
+parse_args() {
+  while getopts "dh?" arg; do
+    case "$arg" in
+      d) log_set_priority 10 ;;
+      h | \?) usage "$0" ;;
+    esac
+  done
+  shift $((OPTIND - 1))
+  TAG=$1
+}
+execute() {
+  tmpdir=$(mktemp -d)
+  log_debug "downloading image into ${tmpdir}"
+  http_download "${tmpdir}/${TARBALL}" "${TARBALL_URL}"
+  docker load --input "${tmpdir}/${TARBALL}"
+  docker tag "rosetta-bitcoin:${TAG}" "rosetta-bitcoin:latest"
+  log_info "installed rosetta-bitcoin:${TAG} and tagged as rosetta-bitcoin:latest"
+  rm -rf "${tmpdir}"
+}
+github_tag() {
+  log_info "checking GitHub for latest tag"
+  REALTAG=$(github_release "$OWNER/$REPO" "${TAG}")
+  TAG="$REALTAG"
+}
+
+cat /dev/null <<EOF
+------------------------------------------------------------------------
+https://github.com/client9/shlib - portable posix shell functions
+Public domain - http://unlicense.org
+https://github.com/client9/shlib/blob/master/LICENSE.md
+but credit (and pull requests) appreciated.
+------------------------------------------------------------------------
+EOF
+is_command() {
+  command -v "$1" >/dev/null
+}
+echoerr() {
+  echo "$@" 1>&2
+}
+log_prefix() {
+  echo "$0"
+}
+_logp=6
+log_set_priority() {
+  _logp="$1"
+}
+log_priority() {
+  if test -z "$1"; then
+    echo "$_logp"
+    return
+  fi
+  [ "$1" -le "$_logp" ]
+}
+log_tag() {
+  case $1 in
+    0) echo "emerg" ;;
+    1) echo "alert" ;;
+    2) echo "crit" ;;
+    3) echo "err" ;;
+    4) echo "warning" ;;
+    5) echo "notice" ;;
+    6) echo "info" ;;
+    7) echo "debug" ;;
+    *) echo "$1" ;;
+  esac
+}
+log_debug() {
+  log_priority 7 || return 0
+  echoerr "$(log_prefix)" "$(log_tag 7)" "$@"
+}
+log_info() {
+  log_priority 6 || return 0
+  echoerr "$(log_prefix)" "$(log_tag 6)" "$@"
+}
+log_err() {
+  log_priority 3 || return 0
+  echoerr "$(log_prefix)" "$(log_tag 3)" "$@"
+}
+log_crit() {
+  log_priority 2 || return 0
+  echoerr "$(log_prefix)" "$(log_tag 2)" "$@"
+}
+uname_os() {
+  os=$(uname -s | tr '[:upper:]' '[:lower:]')
+  case "$os" in
+    cygwin_nt*) os="windows" ;;
+    mingw*) os="windows" ;;
+    msys_nt*) os="windows" ;;
+  esac
+  echo "$os"
+}
+untar() {
+  tarball=$1
+  case "${tarball}" in
+    *.tar.gz | *.tgz) tar --no-same-owner -xzf "${tarball}" ;;
+    *.tar) tar --no-same-owner -xf "${tarball}" ;;
+    *.zip) unzip "${tarball}" ;;
+    *)
+      log_err "untar unknown archive format for ${tarball}"
+      return 1
+      ;;
+  esac
+}
+http_download_curl() {
+  local_file=$1
+  source_url=$2
+  header=$3
+  if [ -z "$header" ]; then
+    code=$(curl -w '%{http_code}' -sL -o "$local_file" "$source_url")
+  else
+    code=$(curl -w '%{http_code}' -sL -H "$header" -o "$local_file" "$source_url")
+  fi
+  if [ "$code" != "200" ]; then
+    log_debug "http_download_curl received HTTP status $code"
+    return 1
+  fi
+  return 0
+}
+http_download_wget() {
+  local_file=$1
+  source_url=$2
+  header=$3
+  if [ -z "$header" ]; then
+    wget -q -O "$local_file" "$source_url"
+  else
+    wget -q --header "$header" -O "$local_file" "$source_url"
+  fi
+}
+http_download() {
+  log_debug "http_download $2"
+  if is_command curl; then
+    http_download_curl "$@"
+    return
+  elif is_command wget; then
+    http_download_wget "$@"
+    return
+  fi
+  log_crit "http_download unable to find wget or curl"
+  return 1
+}
+http_copy() {
+  tmp=$(mktemp)
+  http_download "${tmp}" "$1" "$2" || return 1
+  body=$(cat "$tmp")
+  rm -f "${tmp}"
+  echo "$body"
+}
+github_release() {
+  owner_repo=$1
+  version=$2
+  test -z "$version" && version="latest"
+  giturl="https://github.com/${owner_repo}/releases/${version}"
+  json=$(http_copy "$giturl" "Accept:application/json")
+  test -z "$json" && return 1
+  version=$(echo "$json" | tr -s '\n' ' ' | sed 's/.*"tag_name":"//' | sed 's/".*//')
+  test -z "$version" && return 1
+  echo "$version"
+}
+cat /dev/null <<EOF
+------------------------------------------------------------------------
+End of functions from https://github.com/client9/shlib
+------------------------------------------------------------------------
+EOF
+
+BINARY=rosetta-bitcoin
+FORMAT=tar.gz
+OWNER=coinbase
+REPO="rosetta-bitcoin"
+PREFIX="$OWNER/$REPO"
+
+# use in logging routines
+log_prefix() {
+	echo "$PREFIX"
+}
+GITHUB_DOWNLOAD=https://github.com/${OWNER}/${REPO}/releases/download
+
+parse_args "$@"
+
+github_tag
+
+log_info "found version: ${TAG}"
+
+NAME=${BINARY}-${TAG}
+TARBALL=${NAME}.${FORMAT}
+TARBALL_URL=${GITHUB_DOWNLOAD}/${TAG}/${TARBALL}
+
+execute