Add keepassxc package (#5731)

packages/keepassxc.rb

+require 'package'
+
+class Keepassxc < Package
+  description 'KeePass Cross-Platform Community Edition, the free, open source, light-weight and easy-to-use password manager.'
+  homepage 'https://keepassxc.org/'
+  version '2.6.4'
+  license 'GPL-2 or GPL-3'
+  compatibility 'x86_64'
+  source_url 'https://github.com/keepassxreboot/keepassxc/releases/download/2.6.4/KeePassXC-2.6.4-x86_64.AppImage'
+  source_sha256 '5f9657440eb0740ad65e7fc3c80524247a863315528705b8fb79df6755329483'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'sommelier'
+
+  def self.build
+    keepass = <<~EOF
+    #!/bin/bash
+    cd #{CREW_PREFIX}/share/keepassxc
+    ./AppRun "$@"
+    EOF
+    IO.write('keepassxc.sh', keepass)
+  end
+
+  def self.install
+    FileUtils.mkdir_p "#{CREW_DEST_PREFIX}/bin"
+    FileUtils.mkdir_p "#{CREW_DEST_PREFIX}/share/keepassxc"
+    FileUtils.install 'keepassxc.sh', "#{CREW_DEST_PREFIX}/bin/keepassxc", mode: 0755
+    FileUtils.mv Dir.glob('*'), "#{CREW_DEST_PREFIX}/share/keepassxc"
+  end
+
+  def self.postinstall
+    puts "\nType 'keepassxc' to get started.\n".lightblue
+  end
+end