Script for copying Insta360 videos from device to a NAS drive, and renaming for Pigasus VR Viewing

media_mover.rb

require 'fileutils'
require 'digest'

class MediaMover
  NAS_MEDIA_DIR = '/media/nas/video'
  NAS_RAW_INCOMING_DIR = NAS_MEDIA_DIR + '/Incoming Raw Footage/Insta360'
  INSTA360_MOUNT_POINT = '/media/dav/disk'
  INSTA360_MEDIA_DIR = INSTA360_MOUNT_POINT + '/DCIM/Camera01'

  def run
    ensure_exists NAS_MEDIA_DIR

    ensure_exists NAS_RAW_INCOMING_DIR do
      puts <<-EOEXPLANATION
      It seems that `#{NAS_RAW_INCOMING_DIR}` does not exist. The NAS is probably not mounted.
      You can run `sudo mount -t nfs 192.168.1.60:/volume1/video /media/nas/video/`
      But really should look at why /etc/fstab did not automount. This was working previously with this line:
      192.168.1.60:/volume1/video /media/nas/video nfs auto,defaults,nofail 0 0
      EOEXPLANATION

      exit
    end

    ensure_exists INSTA360_MOUNT_POINT do
      puts <<-NO_I360
      It seems that the Insta360 camera is not mounted at #{INSTA360_MOUNT_POINT}.
      It should be connected to the computer via cable and turned with a blinking blue light.
      NO_I360

      exit
    end

    ensure_exists INSTA360_MEDIA_DIR do
      puts "It seems that the Insta360 camera file system is not as expected, there should be a #{INSTA360_MEDIA_DIR}."
      exit
    end

    file_index = {}

    puts "Processing files in #{INSTA360_MEDIA_DIR}"
    puts "Note: creating the hash is slow for large files"
    Dir.glob("#{INSTA360_MEDIA_DIR}/*.*") do |media_file|
      puts "Hashing #{media_file}"
      file_md5_hash = Digest::MD5.file(media_file).hexdigest
      file_index[file_md5_hash] = media_file

      begin
        safe_copy_and_rename media_file
      rescue => e
        puts e
      end
    end

    compare_to_other_dirs(file_index)

    puts "OK"
  end

  private

  def ensure_exists(dir_path)
    return if Dir.exist?(dir_path)

    if block_given?
      yield
    else
      FileUtils.mkdir_p dir_path
    end
  end

  def filename_with_360_appended(filename)

  end

  # Note: rname accomplishes two things:
  #  1: Appendiing a _360 allows Pigasus VR Viewer app to automatically treat it as 360 vide
  #  2: Replacing _ with - makes it so that Pigasus does not interpret a substring like _180 to mean it is a 180 video
  def safe_copy_and_rename(src_file_path)
    src_basename = File.basename src_file_path
    src_extname = File.extname src_file_path
    dst_basename = File.basename(src_basename) + src_extname
    nas_file_path = "#{NAS_RAW_INCOMING_DIR}/#{dst_basename}"

    if File.exist? nas_file_path
      if same_file(src_file_path, nas_file_path)
        puts "#{src_basename} already exists on NAS as #{nas_file_path}"
      else
        puts "#{src_basename} already exists on NAS but is not identical to what's on the camera with same name: #{nas_file_path}"
      end
    else
      begin
        FileUtils.cp(src_file_path, nas_file_path)
      rescue Exception => e
        raise "Could not copy #{src_file_path} to #{nas_file_path}: #{e}"
      end

      puts "#{src_basename} copied to #{nas_file_path}"
    end
  end

  def same_file(file_1, file_2)
    cmd = "cmp \"#{file_1}\" \"#{file_2}\""
    return system(cmd)
  end

  def compare_to_other_dirs(file_index)
    other_dirs = [
      '/media/nas/video/Backups/Insta360/',
      '/media/nas/video/Backups/Insta360/'
    ]

    other_dirs.each do |dir|
      Dir.glob(dir+'*.ins?').each do |other_file|
        file_md5_hash = Digest::MD5.file(other_file).hexdigest
        incoming_file = file_index[file_md5_hash]
        if !incoming_file.nil?
          puts "#{other_file} already exists on NAS as #{incoming_file}"
        else
          puts "#{other_file} does not exist in the main incoming dir"
        end
      end
    end
  end
end

MediaMover.new.run