Preliminary interception logging done!

src/bottle/cli.cr

@@ -50,7 +50,7 @@ class CLI
   end
 
   def act_on_args
-    if @args["help"]?
+    if @args["help"]? || @args.keys.size == 0
       help
       exit
     elsif @args["version"]?

src/glue/song.cr

@@ -33,6 +33,7 @@ class Song
     end
 
     if !@metadata
+      puts "Searching for metadata ..."
       @metadata = @spotify_searcher.find_item("track", {
         "name" => @song_name,
         "artist" => @artist_name
@@ -48,34 +49,35 @@ class Song
     data = @metadata.as(JSON::Any)
     filename = data["track_number"].to_s + " - #{data["name"].to_s}.mp3"
 
+    puts "Searching for url ..."
     url = Youtube.find_url(@song_name, @artist_name, search_terms: "lyrics")
 
     if !url 
-      raise("There was no link found on youtube for\n" + 
+      raise("There was no url found on youtube for\n" + 
           %("#{@song_name}" by "#{@artist_name}\n) +
           "Check your input and try again.")
     end
     
-
+    puts "Downloading video ..."
     Ripper.download_mp3(url.as(String), filename)
 
-    temp_albumart_filename = ".tempalbumart.jpg"
-    HTTP::Client.get(data["album"]["images"][0]["url"].to_s) do |response|
-      File.write(temp_albumart_filename, response.body_io)
-    end
+    # temp_albumart_filename = ".tempalbumart.jpg"
+    # HTTP::Client.get(data["album"]["images"][0]["url"].to_s) do |response|
+    #   File.write(temp_albumart_filename, response.body_io)
+    # end
 
-    tagger = Tags.new(filename)
-    tagger.add_album_art(temp_albumart_filename)
-    tagger.add_text_tag("title", data["name"].to_s)
-    tagger.add_text_tag("artist", data["artists"][0]["name"].to_s)
-    tagger.add_text_tag("album", data["album"]["name"].to_s)
-    tagger.add_text_tag("genre", 
-      @spotify_searcher.find_genre(data["artists"][0]["id"].to_s))
-    tagger.add_text_tag("track", data["track_number"].to_s)
-    tagger.add_text_tag("disc", data["disc_number"].to_s)
+    # tagger = Tags.new(filename)
+    # tagger.add_album_art(temp_albumart_filename)
+    # tagger.add_text_tag("title", data["name"].to_s)
+    # tagger.add_text_tag("artist", data["artists"][0]["name"].to_s)
+    # tagger.add_text_tag("album", data["album"]["name"].to_s)
+    # tagger.add_text_tag("genre", 
+    #   @spotify_searcher.find_genre(data["artists"][0]["id"].to_s))
+    # tagger.add_text_tag("track", data["track_number"].to_s)
+    # tagger.add_text_tag("disc", data["disc_number"].to_s)
 
-    tagger.save()
-    File.delete(temp_albumart_filename)
+    # tagger.save()
+    # File.delete(temp_albumart_filename)
 
   end
 

src/interact/logger.cr

@@ -0,0 +1,85 @@
+class Logger
+
+  @done_signal = "---DONE---"
+
+  @command : String
+
+  def initialize(command : String, @log_name : String, @sleept = 0.01)
+    # Have the command output its information to a log and after the command is
+    # finished, append an end signal to the document
+    @command = "#{command} > #{@log_name} " # standard output to log
+    @command += "2> #{@log_name} && " # errors to log
+    @command += "echo #{@done_signal} >> #{@log_name}" # 
+  end
+
+  # Run @command in the background and pipe its output to the log file, with
+  # something constantly monitoring the log file and yielding each new line to
+  # the block call. Useful for changing the output of binaries you don't have 
+  # much control over.
+  # Note that the created temp log will be deleted unless the command fails 
+  # its exit or .start is called with delete_file: false
+  #
+  # ```
+  # l = Logger.new(".temp.log", %(echo "CIA spying" && sleep 2 && echo "new veggie tales season"))
+  # l.start do |output, index|
+  #   case output
+  #   when "CIA spying"
+  #     puts "i sleep"
+  #   when .includes?("veggie tales")
+  #     puts "real shit"
+  #   end
+  # end
+  # ```
+  def start(delete_file=true, &block) : Bool
+    # Delete the log if it already exists
+    File.delete(@log_name) if File.exists?(@log_name)
+
+    # Run the command in the background
+    called = future {
+      system(@command)
+    }
+
+    # Wait for the log file to be written to
+    while !File.exists?(@log_name) 
+      sleep @sleept
+    end
+
+    log = File.open(@log_name)
+    log_content = read_file(log)
+    index = 0
+
+    while true
+      temp_content = read_file(log)
+
+      # make sure that there is new data
+      if temp_content.size > 0 && log_content != temp_content
+        log_content = temp_content
+
+        # break the loop if the command has completed
+        break if log_content[0] == @done_signal
+
+        # give the line and index to the block
+        yield log_content[0], index
+        index += 1
+      end
+    end
+
+    status = called.get()
+    if status == true && delete_file == true 
+      log.delete()
+    end
+
+    return called.get()
+  end
+
+  # Reads each line of the file into an Array of Strings
+  private def read_file(file : IO) : Array(String)
+    content = [] of String
+
+    file.each_line do |line|
+      content.push(line)
+    end
+
+    return content
+  end
+end

src/interact/ripper.cr

@@ -1,3 +1,5 @@
+require "./logger"
+
 module Ripper
 
   extend self
@@ -11,7 +13,7 @@ module Ripper
   # Ripper.download_mp3("https://youtube.com/watch?v=0xnciFWAqa0", 
   #   "Queen/A Night At The Opera/Bohemian Rhapsody.mp3")
   # ```
-  def download_mp3(video_url : String, output_filename : String) : Bool
+  def download_mp3(video_url : String, output_filename : String)
     ydl_loc = BIN_LOC.join("youtube-dl")
     
     # remove the extension that will be added on by ydl
@@ -22,6 +24,7 @@ module Ripper
     options = {
       "--output" => %("#{output_filename}.%(ext)s"), # auto-add correct ext
       # "--quiet" => "",
+      "--verbose" => "",
       "--ffmpeg-location" => BIN_LOC,
       "--extract-audio" => "",
       "--audio-format" => "mp3",
@@ -33,11 +36,29 @@ module Ripper
       command += " #{option} #{options[option]}"
     end
 
-    if system(command)
-      return true
-    else
-      return false
+
+    l = Logger.new(command, ".ripper.log")
+    o = RipperOutputCensor.new
+
+    return l.start do |line, index|
+      o.censor_output(line, index)
     end
   end
 
+  private class RipperOutputCensor
+    @dl_status_index = 0
+
+    def censor_output(line : String, index : Int32)
+      case line
+      when .includes? "[download]"
+        if @dl_status_index != 0
+          print "\e[1A"
+          print "\e[0K\r"
+        end
+        puts line
+        @dl_status_index += 1
+      end
+    end
+
+  end
 end