# frozen_string_literal: true

RSpec.describe "bundle binstubs <gem>" do
  context "when the gem exists in the lockfile" do
    it "sets up the binstub" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs myrack"

      expect(bundled_app("bin/myrackup")).to exist
    end

    it "does not install other binstubs" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
        gem "rails"
      G

      bundle "binstubs rails"

      expect(bundled_app("bin/myrackup")).not_to exist
      expect(bundled_app("bin/rails")).to exist
    end

    it "does install multiple binstubs" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
        gem "rails"
      G

      bundle "binstubs rails myrack"

      expect(bundled_app("bin/myrackup")).to exist
      expect(bundled_app("bin/rails")).to exist
    end

    it "allows installing all binstubs" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "rails"
      G

      bundle :binstubs, all: true

      expect(bundled_app("bin/rails")).to exist
      expect(bundled_app("bin/rake")).to exist
    end

    it "allows installing binstubs for all platforms" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs myrack --all-platforms"

      expect(bundled_app("bin/myrackup")).to exist
      expect(bundled_app("bin/myrackup.cmd")).to exist
    end

    it "displays an error when used without any gem" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs", raise_on_error: false
      expect(exitstatus).to eq(1)
      expect(err).to include("`bundle binstubs` needs at least one gem to run.")
    end

    it "displays an error when used with --all and gems" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs myrack", all: true, raise_on_error: false
      expect(last_command).to be_failure
      expect(err).to include("Cannot specify --all with specific gems")
    end

    context "when generating bundle binstub outside bundler" do
      it "should abort" do
        install_gemfile <<-G
          source "https://gem.repo1"
          gem "myrack"
        G

        bundle "binstubs myrack"

        File.open(bundled_app("bin/bundle"), "wb") do |file|
          file.print "OMG"
        end

        sys_exec "bin/myrackup", raise_on_error: false

        expect(err).to include("was not generated by Bundler")
      end
    end

    context "the bundle binstub" do
      before do
        pristine_system_gems "bundler-#{system_bundler_version}"
        build_repo2 do
          build_gem "myrack", "1.2" do |s|
            s.executables = "myrackup"
          end

          build_gem "prints_loaded_gems", "1.0" do |s|
            s.executables = "print_loaded_gems"
            s.bindir = "exe"
            s.write "exe/print_loaded_gems", <<~R
              #!/usr/bin/env ruby
              specs = Gem.loaded_specs.values.reject {|s| s.default_gem? }
              puts specs.map(&:full_name).sort.inspect
            R
          end

          build_bundler locked_bundler_version
        end
        install_gemfile <<-G
          source "https://gem.repo2"
          gem "myrack"
          gem "prints_loaded_gems"
        G
        bundle "binstubs bundler myrack prints_loaded_gems"
      end

      let(:system_bundler_version) { Bundler::VERSION }
      let(:locked_bundler_version) { nil }
      let(:lockfile_content) { lockfile.gsub(system_bundler_version, locked_bundler_version) }

      it "runs bundler" do
        bundle "install --verbose", bundle_bin: "bin/bundle"
        expect(out).to include %(Using bundler #{system_bundler_version}\n)
      end

      context "when BUNDLER_VERSION is set" do
        it "runs the correct version of bundler" do
          bundle "install", env: { "BUNDLER_VERSION" => "999.999.999" }, raise_on_error: false, bundle_bin: "bin/bundle"
          expect(exitstatus).to eq(42)
          expect(err).to include("Activating bundler (999.999.999) failed:").
            and include("To install the version of bundler this project requires, run `gem install bundler -v '999.999.999'`")
        end

        it "runs the correct version of bundler even if a higher version is installed" do
          system_gems "bundler-999.999.998", "bundler-999.999.999"

          bundle "install --verbose", env: { "BUNDLER_VERSION" => "999.999.998" }, raise_on_error: false, bundle_bin: "bin/bundle"
          expect(out).to include %(Using bundler 999.999.998\n)
        end
      end

      context "when a lockfile exists with a locked bundler version" do
        let(:locked_bundler_version) { "999.999" }

        context "and the version is newer" do
          before do
            lockfile lockfile_content
          end

          it "runs the correct version of bundler" do
            bundle "install", raise_on_error: false, bundle_bin: "bin/bundle"
            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 999.999) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 999.999'`")
          end
        end

        context "and the version is newer when given `gems.rb` and `gems.locked`" do
          before do
            gemfile bundled_app("gems.rb"), gemfile
            lockfile bundled_app("gems.locked"), lockfile_content
          end

          it "runs the correct version of bundler" do
            bundle "install", env: { "BUNDLE_GEMFILE" => "gems.rb" }, raise_on_error: false, bundle_bin: "bin/bundle"

            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 999.999) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 999.999'`")
          end
        end

        context "and the version is older and a different major" do
          let(:system_bundler_version) { "55" }
          let(:locked_bundler_version) { "44" }

          before do
            lockfile lockfile_content
          end

          it "runs the correct version of bundler" do
            bundle "install", raise_on_error: false, bundle_bin: "bin/bundle"
            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 44.0) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 44.0'`")
          end
        end

        context "and the version is older and a different major when given `gems.rb` and `gems.locked`" do
          let(:system_bundler_version) { "55" }
          let(:locked_bundler_version) { "44" }

          before do
            gemfile bundled_app("gems.rb"), gemfile
            lockfile bundled_app("gems.locked"), lockfile_content
          end

          it "runs the correct version of bundler" do
            bundle "install", env: { "BUNDLE_GEMFILE" => "gems.rb" }, raise_on_error: false, bundle_bin: "bin/bundle"
            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 44.0) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 44.0'`")
          end
        end

        context "and the version is older and the same major" do
          let(:system_bundler_version) { "2.999.999" }
          let(:locked_bundler_version) { "2.3.0" }

          before do
            lockfile lockfile_content
          end

          it "installs and runs the exact version of bundler" do
            bundle "install --verbose", bundle_bin: "bin/bundle"
            expect(exitstatus).not_to eq(42)
            expect(out).to include("Bundler 2.999.999 is running, but your lockfile was generated with 2.3.0. Installing Bundler 2.3.0 and restarting using that version.")
            expect(out).to include("Using bundler 2.3.0")
            expect(err).not_to include("Activating bundler (~> 2.3.0) failed:")
          end
        end

        context "and the version is a pre-releaser" do
          let(:system_bundler_version) { "55" }
          let(:locked_bundler_version) { "2.12.0.a" }

          before do
            lockfile lockfile_content
          end

          it "runs the correct version of bundler when the version is a pre-release" do
            bundle "install", raise_on_error: false, bundle_bin: "bin/bundle"
            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 2.12.a) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 2.12.a'`")
          end
        end
      end

      context "when update --bundler is called" do
        it "calls through to the latest bundler version" do
          bundle "update --bundler --verbose", bundle_bin: "bin/bundle"
          using_bundler_line = /Using bundler ([\w\.]+)\n/.match(out)
          expect(using_bundler_line).to_not be_nil
          latest_version = using_bundler_line[1]
          expect(Gem::Version.new(latest_version)).to be >= Gem::Version.new(system_bundler_version)
        end

        it "calls through to the explicit bundler version" do
          bundle "update --bundler=999.999.999", raise_on_error: false, bundle_bin: "bin/bundle"
          expect(exitstatus).to eq(42)
          expect(err).to include("Activating bundler (999.999.999) failed:").
            and include("To install the version of bundler this project requires, run `gem install bundler -v '999.999.999'`")
        end
      end

      context "without a lockfile" do
        it "falls back to the latest installed bundler" do
          FileUtils.rm bundled_app_lock
          bundle "install --verbose", bundle_bin: "bin/bundle"
          expect(out).to include "Using bundler #{system_bundler_version}\n"
        end
      end

      context "using another binstub" do
        it "loads all gems" do
          sys_exec bundled_app("bin/print_loaded_gems").to_s
          expect(out).to eq %(["bundler-#{Bundler::VERSION}", "myrack-1.2", "prints_loaded_gems-1.0"])
        end

        context "when requesting a different bundler version" do
          before { lockfile lockfile.gsub(Bundler::VERSION, "999.999.999") }

          it "attempts to load that version" do
            sys_exec bundled_app("bin/myrackup").to_s, raise_on_error: false
            expect(exitstatus).to eq(42)
            expect(err).to include("Activating bundler (~> 999.999) failed:").
              and include("To install the version of bundler this project requires, run `gem install bundler -v '~> 999.999'`")
          end
        end
      end
    end

    it "installs binstubs from git gems" do
      FileUtils.mkdir_p(lib_path("foo/bin"))
      FileUtils.touch(lib_path("foo/bin/foo"))
      build_git "foo", "1.0", path: lib_path("foo") do |s|
        s.executables = %w[foo]
      end
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "foo", :git => "#{lib_path("foo")}"
      G

      bundle "binstubs foo"

      expect(bundled_app("bin/foo")).to exist
    end

    it "installs binstubs from path gems" do
      FileUtils.mkdir_p(lib_path("foo/bin"))
      FileUtils.touch(lib_path("foo/bin/foo"))
      build_lib "foo", "1.0", path: lib_path("foo") do |s|
        s.executables = %w[foo]
      end
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "foo", :path => "#{lib_path("foo")}"
      G

      bundle "binstubs foo"

      expect(bundled_app("bin/foo")).to exist
    end

    it "sets correct permissions for binstubs" do
      with_umask(0o002) do
        install_gemfile <<-G
          source "https://gem.repo1"
          gem "myrack"
        G

        bundle "binstubs myrack"
        binary = bundled_app("bin/myrackup")
        expect(File.stat(binary).mode.to_s(8)).to eq(Gem.win_platform? ? "100644" : "100775")
      end
    end

    context "when using --shebang" do
      it "sets the specified shebang for the binstub" do
        install_gemfile <<-G
          source "https://gem.repo1"
          gem "myrack"
        G

        bundle "binstubs myrack --shebang jruby"
        expect(File.readlines(bundled_app("bin/myrackup")).first).to eq("#!/usr/bin/env jruby\n")
      end
    end
  end

  context "when the gem doesn't exist" do
    it "displays an error with correct status" do
      install_gemfile <<-G
        source "https://gem.repo1"
      G

      bundle "binstubs doesnt_exist", raise_on_error: false

      expect(exitstatus).to eq(7)
      expect(err).to include("Could not find gem 'doesnt_exist'.")
    end
  end

  context "--path" do
    it "sets the binstubs dir" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs myrack --path exec"

      expect(bundled_app("exec/myrackup")).to exist
    end

    it "setting is saved for bundle install", bundler: "< 3" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
        gem "rails"
      G

      bundle "binstubs myrack", path: "exec"
      bundle :install

      expect(bundled_app("exec/rails")).to exist
    end
  end

  context "with --standalone option" do
    before do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
        gem "rails"
      G
    end

    it "generates a standalone binstub" do
      bundle "binstubs myrack --standalone"
      expect(bundled_app("bin/myrackup")).to exist
    end

    it "generates a binstub that does not depend on rubygems or bundler" do
      bundle "binstubs myrack --standalone"
      expect(File.read(bundled_app("bin/myrackup"))).to_not include("Gem.bin_path")
    end

    context "when specified --path option" do
      it "generates a standalone binstub at the given path" do
        bundle "binstubs myrack --standalone --path foo"
        expect(bundled_app("foo/myrackup")).to exist
      end
    end

    context "when specified --all-platforms option" do
      it "generates standalone binstubs for all platforms" do
        bundle "binstubs myrack --standalone --all-platforms"
        expect(bundled_app("bin/myrackup")).to exist
        expect(bundled_app("bin/myrackup.cmd")).to exist
      end
    end

    context "when the gem is bundler" do
      it "warns without generating a standalone binstub" do
        bundle "binstubs bundler --standalone"
        expect(bundled_app("bin/bundle")).not_to exist
        expect(bundled_app("bin/bundler")).not_to exist
        expect(err).to include("Sorry, Bundler can only be run via RubyGems.")
      end
    end

    context "when specified --all option" do
      it "generates standalone binstubs for all gems except bundler" do
        bundle "binstubs --standalone --all"
        expect(bundled_app("bin/myrackup")).to exist
        expect(bundled_app("bin/rails")).to exist
        expect(bundled_app("bin/bundle")).not_to exist
        expect(bundled_app("bin/bundler")).not_to exist
        expect(err).not_to include("Sorry, Bundler can only be run via RubyGems.")
      end
    end
  end

  context "when the bin already exists" do
    it "doesn't overwrite and warns" do
      FileUtils.mkdir_p(bundled_app("bin"))
      File.open(bundled_app("bin/myrackup"), "wb") do |file|
        file.print "OMG"
      end

      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "binstubs myrack"

      expect(bundled_app("bin/myrackup")).to exist
      expect(File.read(bundled_app("bin/myrackup"))).to eq("OMG")
      expect(err).to include("Skipped myrackup")
      expect(err).to include("overwrite skipped stubs, use --force")
    end

    context "when using --force" do
      it "overwrites the binstub" do
        FileUtils.mkdir_p(bundled_app("bin"))
        File.open(bundled_app("bin/myrackup"), "wb") do |file|
          file.print "OMG"
        end

        install_gemfile <<-G
          source "https://gem.repo1"
          gem "myrack"
        G

        bundle "binstubs myrack --force"

        expect(bundled_app("bin/myrackup")).to exist
        expect(File.read(bundled_app("bin/myrackup"))).not_to eq("OMG")
      end
    end
  end

  context "when the gem has no bins" do
    it "suggests child gems if they have bins" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack-obama"
      G

      bundle "binstubs myrack-obama"
      expect(err).to include("myrack-obama has no executables")
      expect(err).to include("myrack has: myrackup")
    end

    it "works if child gems don't have bins" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "actionpack"
      G

      bundle "binstubs actionpack"
      expect(err).to include("no executables for the gem actionpack")
    end

    it "works if the gem has development dependencies" do
      build_repo2 do
        build_gem "with_development_dependency" do |s|
          s.add_development_dependency "activesupport", "= 2.3.5"
        end
      end

      install_gemfile <<-G
        source "https://gem.repo2"
        gem "with_development_dependency"
      G

      bundle "binstubs with_development_dependency"
      expect(err).to include("no executables for the gem with_development_dependency")
    end
  end

  context "when BUNDLE_INSTALL is specified" do
    it "performs an automatic bundle install" do
      gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "config set auto_install 1"
      bundle "binstubs myrack"
      expect(out).to include("Installing myrack 1.0.0")
      expect(the_bundle).to include_gems "myrack 1.0.0"
    end

    it "does nothing when already up to date" do
      install_gemfile <<-G
        source "https://gem.repo1"
        gem "myrack"
      G

      bundle "config set auto_install 1"
      bundle "binstubs myrack", env: { "BUNDLE_INSTALL" => "1" }
      expect(out).not_to include("Installing myrack 1.0.0")
    end
  end
end
