shell: nushell integration scripts (#4630)

Co-authored-by: imsys <911254+imsys@users.noreply.github.com> Co-authored-by: Grzegorz Zalewski (Greg) <12560152+zalewskigrzegorz@users.noreply.github.com> Co-authored-by: René Jochum <rene@jochum.dev> Co-authored-by: Junegunn Choi <junegunn.c@gmail.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-06-09 10:03:17 +00:00 · 2026-05-23 10:13:46 -04:00
parent ccedd064ca
commit 290b18d9fe
13 changed files with 1040 additions and 16 deletions
@@ -78,6 +78,38 @@ class Shell
          "rm -f ~/.local/share/fish/fzf_test_history; XDG_CONFIG_HOME=#{confdir} fish"
        end
    end
+
+    def nushell
+      @nushell ||=
+        begin
+          xdg_home = '/tmp/fzf-nushell-xdg'
+          config_dir = "#{xdg_home}/nushell"
+          FileUtils.rm_rf(xdg_home)
+          FileUtils.mkdir_p(config_dir)
+
+          # Write env.nu to set up PATH and unset FZF variables
+          File.open("#{config_dir}/env.nu", 'w') do |f|
+            f.puts "$env.PATH = ($env.PATH | split row (char esep) | prepend '#{BASE}/bin')"
+            UNSETS.each do |var|
+              f.puts "hide-env -i #{var}"
+            end
+            f.puts "$env.FZF_DEFAULT_OPTS = \"--no-scrollbar --pointer '>' --marker '>'\""
+            f.puts '$env.config = ($env.config | upsert history { file_format: "plaintext", max_size: 100 })'
+          end
+
+          # Write config.nu with minimal prompt
+          File.open("#{config_dir}/config.nu", 'w') do |f|
+            f.puts '$env.PROMPT_COMMAND = {|| "" }'
+            f.puts '$env.PROMPT_INDICATOR = ""'
+            f.puts '$env.PROMPT_COMMAND_RIGHT = {|| "" }'
+            f.puts '$env.config = ($env.config | upsert show_banner false)'
+            f.puts "source #{BASE}/shell/key-bindings.nu"
+            f.puts "source #{BASE}/shell/completion.nu"
+          end
+
+          "unset #{UNSETS.join(' ')}; env XDG_CONFIG_HOME=#{xdg_home} XDG_DATA_HOME=#{xdg_home}/../fzf-nushell-data nu --config #{config_dir}/config.nu --env-config #{config_dir}/env.nu"
+        end
+    end
  end
 end

@@ -85,12 +117,30 @@ class Tmux
  attr_reader :win

  def initialize(shell = :bash)
+    @shell = shell
    @win = go(%W[new-window -d -P -F #I #{Shell.send(shell)}]).first
    go(%W[set-window-option -t #{@win} pane-base-index 0])
-    return unless shell == :fish
-
-    send_keys 'function fish_prompt; end; clear', :Enter
-    self.until(&:empty?)
+    if shell == :fish
+      send_keys 'function fish_prompt; end; clear', :Enter
+      self.until(&:empty?)
+    elsif shell == :nushell
+      # Clear history from previous tests to avoid contamination
+      FileUtils.rm_f('/tmp/fzf-nushell-xdg/nushell/history.txt')
+      # Wait for nushell to be ready by polling with a marker command.
+      # We use 'print "fzf-ready"' and check for a line that is exactly
+      # 'fzf-ready' (not the command echo which includes 'print').
+      retries = 0
+      begin
+        send_keys 'print "fzf-ready"', :Enter
+        self.until { |lines| lines.any? { |l| l.strip == 'fzf-ready' } }
+      rescue Minitest::Assertion
+        retries += 1
+        raise if retries > 5
+        retry
+      end
+      send_keys 'clear', :Enter
+      self.until(&:empty?)
+    end
  end

  def kill
@@ -242,11 +292,19 @@ class Tmux
  def prepare
    tries = 0
    begin
-      self.until(true) do |lines|
+      if @shell == :nushell
        message = "Prepare[#{tries}]"
-        send_keys ' ', 'C-u', :Enter, message, :Left, :Right
-        sleep(0.15)
-        lines[-1] == message
+        send_keys 'C-u', 'C-l'
+        sleep 0.2
+        send_keys ' ', 'C-u', :Enter, message
+        self.until { |lines| lines[-1] == message }
+      else
+        self.until(true) do |lines|
+          message = "Prepare[#{tries}]"
+          send_keys ' ', 'C-u', :Enter, message, :Left, :Right
+          sleep(0.15)
+          lines[-1] == message
+        end
      end
    rescue Minitest::Assertion
      (tries += 1) < 5 ? retry : raise
@@ -1103,3 +1103,123 @@ class TestFish < TestBase
    end
  end
 end
+
+class TestNushell < TestBase
+  include TestShell
+
+  def teardown
+    @tmux&.kill
+  end
+
+  def shell
+    :nushell
+  end
+
+  def set_var(name, val)
+    tmux.prepare
+    tmux.send_keys "$env.#{name} = '#{val}'", :Enter
+    tmux.prepare
+  end
+
+  def unset_var(name)
+    tmux.prepare
+    tmux.send_keys "hide-env -i #{name}", :Enter
+    tmux.prepare
+  end
+
+  def new_shell
+    tmux.send_keys 'FZF_TMUX=1 nu', :Enter
+    tmux.prepare
+  end
+
+  # Override: Nushell's builtin `echo` outputs structured data, so we need
+  # `^echo` (external echo) for plain text output on the command line.
+  def test_ctrl_t_unicode
+    writelines(['fzf-unicode 테스트1', 'fzf-unicode 테스트2'])
+    set_var('FZF_CTRL_T_COMMAND', "cat #{tempname}")
+
+    tmux.prepare
+    tmux.send_keys '^echo ', 'C-t'
+    tmux.until { |lines| assert_equal 2, lines.match_count }
+    tmux.send_keys 'fzf-unicode'
+    tmux.until { |lines| assert_equal 2, lines.match_count }
+
+    tmux.send_keys '1'
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.send_keys :Tab
+    tmux.until { |lines| assert_equal 1, lines.select_count }
+
+    tmux.send_keys :BSpace
+    tmux.until { |lines| assert_equal 2, lines.match_count }
+
+    tmux.send_keys '2'
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.send_keys :Tab
+    tmux.until { |lines| assert_equal 2, lines.select_count }
+
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert_match(/\^echo .*fzf-unicode.*1.* .*fzf-unicode.*2/, lines.join) }
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert_equal 'fzf-unicode 테스트1 fzf-unicode 테스트2', lines[-1] }
+  end
+
+  # Override: Nushell's external completer replaces the entire token,
+  # so we use assert_includes instead of assert_equal for the result.
+  # ~USERNAME expansion and backslash-escaped spaces are not applicable.
+  def test_file_completion
+    FileUtils.mkdir_p('/tmp/fzf-test')
+    (1..100).each { |i| FileUtils.touch("/tmp/fzf-test/#{i}") }
+    tmux.prepare
+
+    # Multi-selection
+    tmux.send_keys "cat /tmp/fzf-test/10#{trigger}", :Tab
+    tmux.until { |lines| assert_equal 2, lines.match_count }
+    tmux.send_keys :Tab, :Tab
+    tmux.until { |lines| assert_equal 2, lines.select_count }
+    tmux.send_keys :Enter
+    tmux.until(true) do |lines|
+      assert_includes lines[-1].to_s, '/tmp/fzf-test/10'
+      assert_includes lines[-1].to_s, '/tmp/fzf-test/100'
+    end
+
+    # Single selection
+    tmux.prepare
+    tmux.send_keys "cat /tmp/fzf-test/10#{trigger}", :Tab
+    tmux.until { |lines| assert_equal 2, lines.match_count }
+    tmux.send_keys '0'
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.send_keys :Enter
+    tmux.until(true) do |lines|
+      assert_includes lines[-1].to_s, '/tmp/fzf-test/100'
+    end
+
+    # Should include hidden files
+    (1..100).each { |i| FileUtils.touch("/tmp/fzf-test/.hidden-#{i}") }
+    tmux.prepare
+    tmux.send_keys "cat /tmp/fzf-test/hidden#{trigger}", :Tab
+    tmux.until(true) do |lines|
+      assert_equal 100, lines.match_count
+      assert lines.any_include?('/tmp/fzf-test/.hidden-')
+    end
+    tmux.send_keys :Enter
+  ensure
+    FileUtils.rm_rf('/tmp/fzf-test')
+  end
+
+  # Nushell does not support multiline command recall the same way
+  # as bash/zsh/fish, so test_ctrl_r_multiline is omitted.
+
+  # Override: only test with 'foo' -- single and double quotes cause
+  # issues in Nushell's line editor.
+  def test_ctrl_r_abort
+    %w[foo].each do |query|
+      tmux.prepare
+      tmux.send_keys :Enter, query
+      tmux.until { |lines| assert lines[-1]&.start_with?(query) }
+      tmux.send_keys 'C-r'
+      tmux.until { |lines| assert_equal "> #{query}", lines[-1] }
+      tmux.send_keys 'C-g'
+      tmux.until { |lines| assert lines[-1]&.start_with?(query) }
+    end
+  end
+end