Bash script to automatically download CM nightlies roms and accumulate them into a user-specified folder.

cm_nightlies_downloader.sh

#!/bin/bash

Device=$1
Path=$2

if [ $# -ne 2 ] || [ $# == "--help" ] || [ $# == "-h" ]
then
  echo Simple CM Nightlies downloader
  echo
  echo Usage:     $(basename $0) device-name output-path
  echo
  echo Example:   $(basename $0) falcon "/home/user/Moto G/CM13/"
  echo
  exit 1
fi

if [ ! -d "$Path" ]
then
  echo "The specified folder does not exist"
  exit 1
fi
if [ ! -w "$Path" ]
then
  echo "The specified folder is not writable"
  exit 1
fi


Url="https://download.cyanogenmod.org"`curl -ks "https://download.cyanogenmod.org/?device="$Device | grep $Device.zip | head -n 1 | cut -d'"' -f2`
LatestDate=$(echo $Url | cut -d- -f 3)
Latest=$(echo $Url | cut -d/ -f 7)
File=$(echo $Path$Latest)
if [ -f "$File" ];
then
  echo "File $FILE exists. Skipping..."
  exit 0
else
  echo "File $FILE does not exist. Downloading..."
  curl -Lks -o "$File" "$Url"
  if [ -f "$File" ];
  then
    echo "File downloaded."
    echo "Changing Permissions..."
    chmod 666 "$File"
    echo "Done."
    exit 0
  else
    echo "Couldn't download file to: \"$File\""
    echo "Error."
    exit 2
  fi
fi