install-okd-tools.sh

#!/usr/bin/env bash

set -e

GITHUB_REPO="https://github.com/okd-project/okd"
MIRROR_ROOT="${GITHUB_REPO}/releases/download"
OS=$(uname -s)

if [ "${OS}" == 'Linux' ]; then
  OS=linux
elif [ "${OS}" == 'Darwin' ]; then
  OS=mac
else
  echo "OS Unsupported: ${OS}"
  exit 99
fi

ARCH=$(uname -m)

#if [ "${ARCH}" == 'x86_64' ]; then
#  # MIRROR_PATH='/pub/openshift-v4/x86_64/clients'
#elif [ "${ARCH}" == 'arm64' ]; then
#  # MIRROR_PATH='/pub/openshift-v4/arm64/clients'
#elif [ "${ARCH}" == 's390x' ]; then
#  # MIRROR_PATH='/pub/openshift-v4/s390x/clients'
#elif [ "${ARCH}" == 'ppc64le' ]; then
#  # MIRROR_PATH='/pub/openshift-v4/ppc64le/clients'
#else
#  echo "Architecture Unsupported: ${ARCH}"
#  exit 99
#fi

: "${BIN_PATH:=$(pwd)/bin}"

run() {

  case "$1" in
    --version)
      version "$2"
      ;;
    --cleanup)
      remove_old_ver
      ;;
    --help)
      show_help
      exit 0
      ;;
    *)
      show_help
      exit 0
  esac

}

#check_internet(){
#
#status_code=$(curl --write-out "%{http_code}" --silent --output /dev/null "${MIRROR_DOMAIN}${MIRROR_PATH}/ocp/stable/release.txt")
#
#if [[ "$status_code" -ne 200 ]]; then
#  echo "Internet Access is required for this tool to run."
#  exit 1
#fi
#
#}

#verify_version(){
#
#status_code=$(curl --write-out "%{http_code}" --silent --output /dev/null "$1")
#
#if [[ "$status_code" -ne 200 ]]; then
#  echo "Version $2 does not exist"
#  exit 1
#fi
#
#}

version() {
  local v=$1
  # restore_version "$1"

  if [[ "$v" == "" ]]; then
    echo "Please specify a version."
    echo "Example: install-okd-tools --version 4.11.0-0.okd-2022-12-02-145640"
    exit 1
  fi

  # status_code=$(curl --write-out "%{http_code}" --silent --output /dev/null "${MIRROR_DOMAIN}${MIRROR_PATH}/ocp/$1/release.txt")
  status_code=200

  if [[ "$status_code" -ne 200 ]]; then
    echo "Version $v does not exist"
    exit 1
  else
    # VERSION=$(curl -s "${MIRROR_DOMAIN}${MIRROR_PATH}/ocp/$1/release.txt" | grep 'Name:' | awk '{ print $NF }')
    # CUR_VERSION=$(oc version 2>/dev/null | grep Client | sed -e 's/Client Version: //')
    # if [ "$VERSION" == "$CUR_VERSION" ]; then
    #   echo "${VERSION} already installed."
    #   exit 0
    # fi
    # https://github.com/okd-project/okd/releases/download/4.11.0-0.okd-2022-12-02-145640/openshift-client-linux-4.11.0-0.okd-2022-12-02-145640.tar.gz
    # MIRROR_DOMAIN='https://github.com'
    # /okd-project/okd/releases/download/4.11.0-0.okd-2022-12-02-145640/openshift-client-linux-4.11.0-0.okd-2022-12-02-145640.tar.gz
    # MIRROR_ROOT='https://github.com/okd-project/okd/releases/download'

    CLIENT="${MIRROR_ROOT}/${v}/openshift-client-${OS}-${v}.tar.gz"
    INSTALL="${MIRROR_ROOT}/${v}/openshift-install-${OS}-${v}.tar.gz"
    download "$CLIENT" "$INSTALL"
  fi

}


extract() {

  mkdir -p ${BIN_PATH}
  echo -e "\nExtracting oc and kubectl from openshift-client-${OS}.tar.gz to ${BIN_PATH}"
  tar -zxf "/tmp/openshift-client-${OS}.tar.gz" -C ${BIN_PATH}
  echo -e "\nExtracting openshift-install from openshift-install-${OS}.tar.gz to ${BIN_PATH}"
  tar -zxf "/tmp/openshift-install-${OS}.tar.gz" -C ${BIN_PATH}

}

cleanup() {
  rm -rf ${BIN_PATH}/README.md
  rm -rf "/tmp/openshift-client-${OS}.tar.gz"
  rm -rf "/tmp/openshift-install-${OS}.tar.gz"

}

uninstall(){

	if ls ${BIN_PATH}/oc 1> /dev/null 2>&1 && ls ${BIN_PATH}/openshift-install 1> /dev/null 2>&1 && ls ${BIN_PATH}/kubectl 1> /dev/null 2>&1
  then
  read -rp "Delete the following files?
$(echo -e "\n")
$(for i in oc kubectl openshift-install; do ls -1 ${BIN_PATH}/$i 2>/dev/null; done)
$(for i in oc kubectl openshift-install; do ls -1 ${BIN_PATH}/$i*bak 2>/dev/null; done)
$(echo -e "\nY/N? ")"

  if [[ $REPLY =~ ^[Yy]$ ]]
  then
    for i in oc kubectl openshift-install; do rm -f ${BIN_PATH}/$i*bak 2>/dev/null; done
    for i in oc kubectl openshift-install; do rm -f ${BIN_PATH}/$i 2>/dev/null; done
    exit 0
  elif [[ $REPLY =~ ^[Nn]$ ]]
  then
    exit 0
  else
    echo "Invalid response."
    exit 1
  fi
else
  echo "No versions found."
  exit 0
fi

}

show_ver() {

  if which oc &>/dev/null; then
      echo -e "\noc version: $(oc version 2>/dev/null | grep Client | sed -e 's/Client Version: //')"
  else
      echo "Error getting oc version. Please rerun script."
  fi

  if which kubectl &>/dev/null; then
      echo -e "\nkubectl version: $(kubectl version --client | grep -o "GitVersion:.*" | cut -d, -f1)"
  else
      echo "Error getting kubectl version. Please rerun script."
  fi

  if which openshift-install &>/dev/null; then
      echo -e "\nopenshift-install version: $(openshift-install version | grep openshift-install | sed -e 's/openshift-install //')"
  else
      echo "Error getting openshift-install version. Please rerun script."
  fi

}

download(){

echo -n "Downloading $1:    "
wget --progress=dot "$1" -O "/tmp/openshift-client-${OS}.tar.gz" 2>&1 | \
    grep --line-buffered "%" | \
    sed -e "s,\.,,g" | \
    awk '{printf("\b\b\b\b%4s", $2)}'
echo -ne "\b\b\b\b"
echo " Download Complete."

echo -n "Downloading $2:    "
wget --progress=dot "$2" -O "/tmp/openshift-install-${OS}.tar.gz" 2>&1 | \
    grep --line-buffered "%" | \
    sed -e "s,\.,,g" | \
    awk '{printf("\b\b\b\b%4s", $2)}'
echo -ne "\b\b\b\b"
echo " Download Complete."

}

show_help() {

    cat  << ENDHELP
USAGE: $(basename "$0")
install-okd-tools is a small script that will download the latest, stable, fast, nightly,
or specified version of the oc command line tools, kubectl, and openshift-install.

Options:
    --version: Installs the specific version.  If no version is specified then it
               downloads the latest stable version of the oc tools.
      Example: install-okd-tools --version 4.4.10
    --cleanup: This deleted all backed up version of oc, kubectl, and openshift-install
      Example: install-okd-tools --cleanup
  --uninstall: This will delete all copies of oc, kubectl, and openshift-install including backups
      Example: install-okd-tools --uninstall
    --help:    Shows this help message

You may override the binary path by setting it in BIN_PATH environment variable
- BIN_PATH: Where to save the oc tools. Default: $(pwd)/bin

ENDHELP

}

main() {

  # check_internet
  run "$1" "$2"

  extract

  cleanup

  show_ver

}

main "$@"