From 5cc948cbe8f1e36c61f4e224a5ad74a8a975dbfd Mon Sep 17 00:00:00 2001
From: pdp8 <pdp8@pdp8.info>
Date: Sat, 20 Aug 2022 11:58:59 +0200
Subject: initial import

---
 music.rb | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100755 music.rb

diff --git a/music.rb b/music.rb
new file mode 100755
index 0000000..c07b693
--- /dev/null
+++ b/music.rb
@@ -0,0 +1,41 @@
+#!/usr/bin/env ruby
+require 'json'
+
+dir = ARGV[0]
+Dir.chdir dir
+input = JSON.load(File.read("config.json"))
+input["album"] = File.basename(dir).gsub("_", " ")
+input["artist"] ||= "pdp8@pdp8.info"
+input["year"] ||= `date +%Y`
+input["copyright"] ||= "Creative Commons Attribution-ShareAlike 4.0 International License (http://creativecommons.org/licenses/by-sa/4.0/)"
+dest = File.join(ENV["HOME"], "pub", "music", `date +%Y-%m-%d_`.strip + input["album"].gsub(" ", "_"))
+puts `mkdir -p '#{dest}'`
+cover = File.join(dest, "cover" + File.extname(input["cover"]))
+puts `cp -v '#{input["cover"]}' '#{cover}'`
+puts `exiv2 rm #{cover}`
+puts `exiv2 -M"set Xmp.dc.creator pdp8@pdp8.info" -M"set Xmp.dc.rights This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (http://creativecommons.org/licenses/by-sa/4.0/)." -M"set Xmp.xmpRights.Marked True" #{cover}`
+n = 1
+input["tracks"].each do |t, s|
+  File.open(File.join(dest, "README"), "w+") { |f| f.puts input["text"] }
+  flac = File.join(dest, sprintf("%02d-%s.flac", n, t))
+  puts `cp -v '#{s}' '#{flac}'`
+  File.open("/tmp/meta", "w+") do |tmp|
+    tmp.puts "TITLE=#{t}"
+    tmp.puts "TRACK=#{n}"
+    [
+      "artist",
+      "year",
+      "album",
+      "genre",
+      "copyright"
+    ].each do |tag|
+      tmp.puts "#{tag.upcase}=#{input[tag]}"
+    end
+  end
+  puts `metaflac --remove-all --dont-use-padding #{flac}`
+  puts `metaflac --import-tags-from=/tmp/meta #{flac}`
+  puts `metaflac --import-picture-from=#{cover} #{flac}`
+  mp3 = flac.sub("flac", "mp3")
+  puts `ffmpeg -i #{flac} -c:v copy -ab 256k -f mp3 #{mp3}`
+  n += 1
+end
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