Update texlive from 2017 to 20201017 (#4444)

packages/texlive.rb

@@ -3,33 +3,22 @@ require 'package'
 class Texlive < Package
   description 'TeX Live is an easy way to get up and running with the TeX document production system.'
   homepage 'https://www.tug.org/texlive/'
-  version '2017'
+  version '20201017'
   compatibility 'all'
-  source_url 'ftp://tug.org/historic/systems/texlive/2017/texlive-20170524-extra.tar.xz'
-  source_sha256 'afe49758c26fb51c2fae2e958d3f0c447b5cc22342ba4a4278119d39f5176d7f'
+  source_url 'file:///dev/null'
+  source_sha256 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/texlive-2017-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/texlive-2017-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/texlive-2017-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/texlive-2017-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: 'bb40fc919fcbb9448c484701d86243d018c4644281d6fa8ba5a38773e6889488',
-     armv7l: 'bb40fc919fcbb9448c484701d86243d018c4644281d6fa8ba5a38773e6889488',
-       i686: '413154155e75db6e04530fe1493bfacfd0893837ed3e005675a8d1eb339d5fb6',
-     x86_64: 'b8d927bc0abb8a17a440d235459a90cb50a49c343b8f0a43c9be853cbe0f26b3',
   })
 
-  depends_on 'perl'
-
   def self.build
-    system "rm -rf *"
     system "wget ftp://ftp.fu-berlin.de/tex/CTAN/systems/texlive/tlnet/install-tl-unx.tar.gz"
     system "wget ftp://ftp.fu-berlin.de/tex/CTAN/systems/texlive/tlnet/install-tl-unx.tar.gz.sha512"
     system "cat install-tl-unx.tar.gz.sha512 | xargs | cut -d' ' -f1 > sha512"
     sha512 = open('sha512').read.chomp
-    abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA512.hexdigest( File.read('install-tl-unx.tar.gz') ) == "#{sha512}"
+    abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA512.hexdigest( File.read('install-tl-unx.tar.gz') ) == sha512
     system "tar xvf install-tl-unx.tar.gz"
     system "mv install-tl-20*/* ."
     system "rm -rf install-tl-20*/"