Add miniconda3.rb (#1884)

packages/miniconda3.rb

+require 'package'
+
+class Miniconda3 < Package
+  description 'Anaconda is the world\'s most popular Python data science platform.'
+  homepage 'https://conda.io/miniconda.html'
+  version '5.0.1'
+  source_url 'https://raw.githubusercontent.com/Anaconda-Platform/anaconda-project/adb2d443b805f2c6c53f989251cc1a2b13fc0d0e/README.md'
+  source_sha256 'ec0bfe39423ca117ffcd17c154e3e5f6c81a28c4fb14c22dd5033f499a306362'
+
+  depends_on 'python3'
+
+  def self.install
+    case ARCH
+    when 'i686'
+      system 'curl -Ls -o miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86.sh'
+      abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA256.hexdigest( File.read('miniconda.sh') ) == 'df552bb9046db1f4b68c048e2693dcf52f936de63481589fbaa23c4d161562cf'
+    when 'x86_64'
+      system 'curl -Ls -o miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh'
+      abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA256.hexdigest( File.read('miniconda.sh') ) == '5551f01f436b6409d467412c33e12ecc4f43b5e029290870f8fdeca403c274e6'
+    else
+      puts "#{ARCH} architecture not supported.".lightred
+    end
+    case ARCH
+    when 'i686','x86_64'
+      system "bash miniconda.sh -b -p #{CREW_PREFIX}/share/miniconda3"
+      system "mkdir -p #{CREW_DEST_PREFIX}/bin"
+      FileUtils.cd("#{CREW_DEST_PREFIX}/bin") do
+        system "echo '#!/bin/bash' > conda"
+        system "echo 'cd #{CREW_PREFIX}/share/miniconda3' >> conda"
+        system "echo 'bin/conda \"\$@\"' >> conda"
+        system "chmod +x conda"
+      end
+      system "mkdir -p #{CREW_DEST_DIR}#{CREW_CONFIG_PATH}/meta"
+      system "echo #{CREW_PREFIX}/bin/conda > #{CREW_DEST_DIR}#{CREW_CONFIG_PATH}/meta/miniconda3.filelist"
+      system "find #{CREW_PREFIX}/share/miniconda3/ -type d -exec echo {} >> #{CREW_DEST_DIR}#{CREW_CONFIG_PATH}/meta/miniconda3.directorylist \\;"
+      system "find #{CREW_PREFIX}/share/miniconda3/ -type f -exec echo {} >> #{CREW_DEST_DIR}#{CREW_CONFIG_PATH}/meta/miniconda3.filelist \\;"
+      system "find #{CREW_PREFIX}/share/miniconda3/ -type l -exec echo {} >> #{CREW_DEST_DIR}#{CREW_CONFIG_PATH}/meta/miniconda3.filelist \\;"
+    end
+  end
+
+  def self.postinstall
+    puts
+    puts "To completely remove miniconda3 and all installed packages, execute the following:".lightblue
+    puts "crew remove miniconda3".lightblue
+    puts "rm -rf #{CREW_PREFIX}/share/miniconda3".lightblue
+    puts
+  end
+end