id3-album.rb: read metadata from info.txt

id3-album.rb

@@ -17,14 +17,24 @@ unless File.exist?("albumart.jpg")
   exit 1
 end
 
-$stdout.write("Artist: ")
-artist = gets.chomp
+unless File.exist?("info.txt")
+  $stderr.puts "info.txt not found"
+  exit 1
+end
 
-$stdout.write("Album: ")
-album = gets.chomp
+info = File.read("info.txt")
+info =~ /^artist: (.*)$/
+artist = $1
+info =~ /^album: (.*)$/
+album = $1
+info =~ /^year: (.*)$/
+date = $1
+
+unless artist && album && date
+  $stderr.puts "invalid info.txt format"
+  exit 1
+end
 
-$stdout.write("Release year: ")
-date = gets.chomp
 #$stdout.write("Release date (YYYY-MM-DD): ")
 #date = gets.chomp
 #unless date =~ /^\d{4}-\d{2}-\d{2}$/