install_meshery.sh

# Copyright 2019 Layer5 Authors
#
#   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.

#!/usr/bin/env bash

####### COMMON FUNCTIONS
############################
command_exists() {
    command -v $1 >/dev/null 2>&1
}

#######   IDENTIFY OS
############################

OSARCHITECTURE="$(uname -m)"
OS="$(uname)"

if [ "x${OS}" = "xDarwin" ] ; then
  OSEXT="Darwin"
else
  OSEXT="Linux"
fi

#######   PREFLIGHT CHECK
############################

if ! command_exists curl ; then
    echo "Missing required utility: 'curl'. Please install 'curl' and try again."
    exit;
fi

if [ "x${MESHERY_VERSION}" = "x" ] ; then
  MESHERY_VERSION=$(curl -L -s https://api.github.com/repos/layer5io/meshery/releases | \
                  grep tag_name | sed "s/ *\"tag_name\": *\"\\(.*\\)\",*/\\1/" | \
                  grep -v "rc\.[0-9]$" | sort -t"." -k 1,1 -k 2,2 -k 3,3 -k 4,4 | tail -n 1)
fi

if [ "x${MESHERY_VERSION}" = "x" ] ; then
  printf "Unable to get latest mesheryctl version. Set MESHERY_VERSION env var and re-run. For example: export MESHERY_VERSION=v0.1.6"
  exit;
fi

NAME="mesheryctl-${MESHERY_VERSION}"
URL="https://github.com/layer5io/meshery/releases/download/${MESHERY_VERSION}/mesheryctl_${MESHERY_VERSION:1}_${OSEXT}_${OSARCHITECTURE}.zip"

printf "\nDownloading %s for %s...\n\n" "$NAME" "$OSEXT"
curl -L ${URL} -o ${PWD}/meshery.zip

printf "\nExtracting %s...\n" "$NAME"
unzip ${PWD}/meshery.zip
printf "\nInstalling mesheryctl in /usr/local/bin.\n"
WHOAMI=$(whoami)
if sudo mv ${PWD}/mesheryctl /usr/local/bin/mesheryctl ; then
  echo "mesheryctl installed"
else
        echo "Cannot install mesheryctl. Check permissions of $WHOAMI for /usr/local/bin."
  exit 1
fi

#Transfering permissions and ownership to client USER
if [ "$SUDO_USER" == "" ] ;
then
        if sudo chown $WHOAMI /usr/local/bin/mesheryctl ; then
    echo "permissions moved to "$WHOAMI
  else
        echo "Unable to write to /usr/local/bin/mesheryctl. Please verify write permission for $WHOAMI."
    exit 1
  fi
else
        if chown $SUDO_USER /usr/local/bin/mesheryctl ; then
    echo "permissions moved to "$SUDO_USER
  else
        echo "Unable to write to /usr/local/bin/mesheryctl. Please verify write permission for $SUDO_USER."
    exit 1
  fi
fi

printf "Removing installation files and opening Meshery..."
rm -rf meshery.zip LICENSE README.md

mesheryctl start