class GitAnnex < Formula
  desc "Manage files with git without checking in file contents"
  homepage "https://git-annex.branchable.com/"
  url "https://hackage.haskell.org/package/git-annex-8.20200908/git-annex-8.20200908.tar.gz"
  sha256 "61719d57d9389716aac9e6e12931e41b3b8a157d5fa8959201953810a88d2384"
  license all_of: ["AGPL-3.0-or-later", "BSD-2-Clause", "BSD-3-Clause",
                   "GPL-2.0-only", "GPL-3.0-or-later", "MIT"]
  head "git://git-annex.branchable.com/"

  livecheck do
    url :stable
  end

  bottle do
    cellar :any
    sha256 "a224d9b376d6f79840c9a28381241a93a4f9119ba95d201124a621bc8a354cb1" => :catalina
    sha256 "290ccf441f05d8216eaa27378022b19d70edd26ed4b7a919bb54e94291365e1f" => :mojave
    sha256 "9d84fd3247b4aa83680d3523858f6a36196512e9b7b72ebac05954b0a725daa3" => :high_sierra
  end

  depends_on "cabal-install" => :build
  depends_on "ghc@8.6" => :build
  depends_on "pkg-config" => :build
  depends_on "gsasl"
  depends_on "libmagic"
  depends_on "quvi"

  def install
    system "cabal", "v2-update"
    system "cabal", "v2-install", *std_cabal_v2_args,
                    "--flags=+S3"
    bin.install_symlink "git-annex" => "git-annex-shell"
  end

  plist_options manual: "git annex assistant --autostart"

  def plist
    <<~EOS
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
      <plist version="1.0">
        <dict>
          <key>Label</key>
          <string>#{plist_name}</string>
          <key>RunAtLoad</key>
          <true/>
          <key>KeepAlive</key>
          <false/>
          <key>ProgramArguments</key>
          <array>
            <string>#{opt_bin}/git-annex</string>
            <string>assistant</string>
            <string>--autostart</string>
          </array>
        </dict>
      </plist>
    EOS
  end

  test do
    # make sure git can find git-annex
    ENV.prepend_path "PATH", bin
    # We don't want this here or it gets "caught" by git-annex.
    rm_r "Library/Python/2.7/lib/python/site-packages/homebrew.pth"

    system "git", "init"
    system "git", "annex", "init"
    (testpath/"Hello.txt").write "Hello!"
    assert !File.symlink?("Hello.txt")
    assert_match /^add Hello.txt.*ok.*\(recording state in git\.\.\.\)/m, shell_output("git annex add .")
    system "git", "commit", "-a", "-m", "Initial Commit"
    assert File.symlink?("Hello.txt")

    # make sure the various remotes were built
    assert_match shell_output("git annex version | grep 'remote types:'").chomp,
                 "remote types: git gcrypt p2p S3 bup directory rsync web bittorrent " \
                 "webdav adb tahoe glacier ddar git-lfs httpalso hook external"

    # The steps below are necessary to ensure the directory cleanly deletes.
    # git-annex guards files in a way that isn't entirely friendly of automatically
    # wiping temporary directories in the way `brew test` does at end of execution.
    system "git", "rm", "Hello.txt", "-f"
    system "git", "commit", "-a", "-m", "Farewell!"
    system "git", "annex", "unused"
    assert_match "dropunused 1 ok", shell_output("git annex dropunused 1 --force")
    system "git", "annex", "uninit"
  end
end