make it easier to download and install (#36)

* make it easier to download and install

Add a make target `install-tf` that builds and installs where terraform
can find the plugin.

Update download.sh to work with our changes in #34.

* unzip -u

Author: Ryan King

Makefile

@@ -73,4 +73,9 @@ release-prerelease: check-release-prereqs build ## release to github as a 'pre-r
 	git push
 	git push --tags
 	goreleaser release -f .goreleaser.prerelease.yml --debug --rm-dist
-.PHONY: release-prerelease
+.PHONY: release-prerelease
+
+install-tf: build ## installs plugin where terraform can find it
+	mkdir -p $(HOME)/.terraform.d/plugins
+	cp ./$(BASE_BINARY_NAME) $(HOME)/.terraform.d/plugins/$(BASE_BINARY_NAME)
+.PHONY: install-tf

download.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 set -e
-# Code generated by godownloader on 2019-12-05T18:58:14Z. DO NOT EDIT.
+# Code generated by godownloader on 2019-02-06T21:15:11Z. DO NOT EDIT.
 #
 
 usage() {
@@ -27,12 +27,11 @@ parse_args() {
   # over-ridden by flag below
 
   BINDIR=${BINDIR:-./bin}
-  while getopts "b:dh?x" arg; do
+  while getopts "b:dh?" arg; do
     case "$arg" in
       b) BINDIR="$OPTARG" ;;
       d) log_set_priority 10 ;;
       h | \?) usage "$0" ;;
-      x) set -x ;;
     esac
   done
   shift $((OPTIND - 1))
@@ -43,33 +42,39 @@ parse_args() {
 # network, either nothing will happen or will syntax error
 # out preventing half-done work
 execute() {
-  tmpdir=$(mktemp -d)
+  tmpdir=$(mktmpdir)
   log_debug "downloading files into ${tmpdir}"
   http_download "${tmpdir}/${TARBALL}" "${TARBALL_URL}"
   http_download "${tmpdir}/${CHECKSUM}" "${CHECKSUM_URL}"
   hash_sha256_verify "${tmpdir}/${TARBALL}" "${tmpdir}/${CHECKSUM}"
   srcdir="${tmpdir}"
   (cd "${tmpdir}" && untar "${TARBALL}")
-  test ! -d "${BINDIR}" && install -d "${BINDIR}"
-  for binexe in $BINARIES; do
+  install -d "${BINDIR}"
+  for binexe in "terraform-provider-bless_${TAG}" ; do
     if [ "$OS" = "windows" ]; then
       binexe="${binexe}.exe"
     fi
     install "${srcdir}/${binexe}" "${BINDIR}/"
     log_info "installed ${BINDIR}/${binexe}"
   done
-  rm -rf "${tmpdir}"
 }
-get_binaries() {
-  case "$PLATFORM" in
-    darwin/amd64) BINARIES="terraform-provider-bless_{{ .Tag }}" ;;
-    linux/amd64) BINARIES="terraform-provider-bless_{{ .Tag }}" ;;
-    windows/amd64) BINARIES="terraform-provider-bless_{{ .Tag }}" ;;
-    *)
-      log_crit "platform $PLATFORM is not supported.  Make sure this script is up-to-date and file request at https://github.com/${PREFIX}/issues/new"
-      exit 1
-      ;;
+is_supported_platform() {
+  platform=$1
+  found=1
+  case "$platform" in
+    darwin/amd64) found=0 ;;
+    linux/amd64) found=0 ;;
   esac
+  return $found
+}
+check_platform() {
+  if is_supported_platform "$PLATFORM"; then
+    # optional logging goes here
+    true
+  else
+    log_crit "platform $PLATFORM is not supported.  Make sure this script is up-to-date and file request at https://github.com/${PREFIX}/issues/new"
+    exit 1
+  fi
 }
 tag_to_version() {
   if [ -z "${TAG}" ]; then
@@ -87,7 +92,7 @@ tag_to_version() {
   VERSION=${TAG#v}
 }
 adjust_format() {
-  # change format (tar.gz or zip) based on OS
+  # change format (tar.gz or zip) based on ARCH
   true
 }
 adjust_os() {
@@ -159,9 +164,7 @@ log_crit() {
 uname_os() {
   os=$(uname -s | tr '[:upper:]' '[:lower:]')
   case "$os" in
-    cygwin_nt*) os="windows" ;;
-    mingw*) os="windows" ;;
-    msys_nt*) os="windows" ;;
+    msys_nt) os="windows" ;;
   esac
   echo "$os"
 }
@@ -221,15 +224,20 @@ uname_arch_check() {
 untar() {
   tarball=$1
   case "${tarball}" in
-    *.tar.gz | *.tgz) tar --no-same-owner -xzf "${tarball}" ;;
-    *.tar) tar --no-same-owner -xf "${tarball}" ;;
-    *.zip) unzip "${tarball}" ;;
+    *.tar.gz | *.tgz) tar -xzf "${tarball}" ;;
+    *.tar) tar -xf "${tarball}" ;;
+    *.zip) unzip -u "${tarball}" ;;
     *)
       log_err "untar unknown archive format for ${tarball}"
       return 1
       ;;
   esac
 }
+mktmpdir() {
+  test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
+  mkdir -p "${TMPDIR}"
+  echo "${TMPDIR}"
+}
 http_download_curl() {
   local_file=$1
   source_url=$2
@@ -332,8 +340,8 @@ EOF
 PROJECT_NAME="terraform-provider-bless"
 OWNER=chanzuckerberg
 REPO="terraform-provider-bless"
-BINARY=terraform-provider-bless_{{ .Tag }}
-FORMAT=tar.gz
+BINARY=terraform-provider-bless
+FORMAT=zip
 OS=$(uname_os)
 ARCH=$(uname_arch)
 PREFIX="$OWNER/$REPO"
@@ -350,7 +358,7 @@ uname_arch_check "$ARCH"
 
 parse_args "$@"
 
-get_binaries
+check_platform
 
 tag_to_version
 
@@ -365,7 +373,7 @@ log_info "found version: ${VERSION} for ${TAG}/${OS}/${ARCH}"
 NAME=${PROJECT_NAME}_${VERSION}_${OS}_${ARCH}
 TARBALL=${NAME}.${FORMAT}
 TARBALL_URL=${GITHUB_DOWNLOAD}/${TAG}/${TARBALL}
-CHECKSUM=${PROJECT_NAME}_${VERSION}_checksums.txt
+CHECKSUM=${PROJECT_NAME}_${VERSION}_SHA256SUMS
 CHECKSUM_URL=${GITHUB_DOWNLOAD}/${TAG}/${CHECKSUM}