#!/bin/bash -e
################################################################################
##  File:  aws-sam-cli.sh
##  Desc:  Installs AWS SAM CLI
##         Requires Python >=3.6, must be run as non-root user after toolset installation
################################################################################

# Download latest aws sam cli sources
TarballUrl=$(curl -s https://api.github.com/repos/aws/aws-sam-cli/releases/latest | jq -r '.tarball_url')
TarballPath="/tmp/aws-sam-cli.tar.gz"
wget $TarballUrl -O $TarballPath
tar -xzvf $TarballPath -C /tmp
cd /tmp/aws-aws-sam-cli*

mkdir /opt/python-aws-sam-cli
cp -r /opt/hostedtoolcache/Python/3.7* /opt/python-aws-sam-cli

# Use copy of python 3.7 from toolcache to install aws sam, setuptools package required for the installation
Python3Dir=$(echo /opt/python-aws-sam-cli/3.7*/x64)
Python3BinDir="${Python3Dir}/bin"
$Python3BinDir/python3 -m pip install setuptools
$Python3BinDir/python3 setup.py install
ln -sf ${Python3BinDir}/sam /usr/local/bin/sam

# Run tests to determine that the software installed as expected
echo "Testing to make sure that script performed as expected, and basic scenarios work"
if ! sam --version; then
    echo "AWS SAM CLI was not installed"
    exit 1
fi