Add missing environment variables (#4356)

Co-authored-by: Rafael Baboni Dominiquini <rafaeldominiquini@gmail.com>
Co-authored-by: Junegunn Choi <junegunn.c@gmail.com>

man/man1/fzf.1

@@ -1279,10 +1279,20 @@ fzf exports the following environment variables to its child processes.
 .br
 .BR FZF_PROMPT "          Prompt string"
 .br
+.BR FZF_GHOST "           Ghost string"
+.br
+.BR FZF_POINTER "         Pointer string"
+.br
 .BR FZF_PREVIEW_LABEL "   Preview label string"
 .br
 .BR FZF_BORDER_LABEL "    Border label string"
 .br
+.BR FZF_LIST_LABEL "      List label string"
+.br
+.BR FZF_INPUT_LABEL "     Input label string"
+.br
+.BR FZF_HEADER_LABEL "    Header label string"
+.br
 .BR FZF_ACTION "          The name of the last action performed"
 .br
 .BR FZF_KEY "             The name of the last key pressed"

src/terminal.go

@@ -1091,9 +1091,13 @@ func (t *Terminal) environImpl(forPreview bool) []string {
 	env = append(env, "FZF_ACTION="+t.lastAction.Name())
 	env = append(env, "FZF_KEY="+t.lastKey)
 	env = append(env, "FZF_PROMPT="+string(t.promptString))
+	env = append(env, "FZF_GHOST="+string(t.ghost))
+	env = append(env, "FZF_POINTER="+string(t.pointer))
 	env = append(env, "FZF_PREVIEW_LABEL="+t.previewLabelOpts.label)
 	env = append(env, "FZF_BORDER_LABEL="+t.borderLabelOpts.label)
 	env = append(env, "FZF_LIST_LABEL="+t.listLabelOpts.label)
+	env = append(env, "FZF_INPUT_LABEL="+t.inputLabelOpts.label)
+	env = append(env, "FZF_HEADER_LABEL="+t.headerLabelOpts.label)
 	if len(t.nthCurrent) > 0 {
 		env = append(env, "FZF_NTH="+RangesToString(t.nthCurrent))
 	}

test/test_core.rb

@@ -1632,14 +1632,16 @@ class TestCore < TestInteractive
   end
 
   def test_env_vars
-    def to_vars(lines)
+    def env_vars
-      lines.select { it.start_with?('FZF_') }.to_h do
+      return {} unless File.exist?(tempname)
-        key, val = it.split('=', 2)
+
+      File.readlines(tempname).select { it.start_with?('FZF_') }.to_h do
+        key, val = it.chomp.split('=', 2)
         [key.to_sym, val]
       end
     end
 
-    tmux.send_keys %(seq 100 | #{FZF} --multi --reverse --preview-window up,99%,noborder --preview 'env | grep ^FZF_ | sort' --no-input --bind enter:show-input+refresh-preview,space:disable-search+refresh-preview), :Enter
+    tmux.send_keys %(seq 100 | #{FZF} --multi --reverse --preview-window 0 --preview 'env | grep ^FZF_ | sort > #{tempname}' --no-input --bind enter:show-input+refresh-preview,space:disable-search+refresh-preview), :Enter
     expected = {
       FZF_TOTAL_COUNT: '100',
       FZF_MATCH_COUNT: '100',
@@ -1648,31 +1650,32 @@ class TestCore < TestInteractive
       FZF_KEY: '',
       FZF_POS: '1',
       FZF_QUERY: '',
-      FZF_PROMPT: '>',
+      FZF_POINTER: '>',
+      FZF_PROMPT: '> ',
       FZF_INPUT_STATE: 'hidden'
     }
-    tmux.until do |lines|
+    tmux.until do
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Enter
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_INPUT_STATE: 'enabled', FZF_ACTION: 'show-input', FZF_KEY: 'enter')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Tab, :Tab
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_ACTION: 'toggle-down', FZF_KEY: 'tab', FZF_POS: '3', FZF_SELECT_COUNT: '2')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys '99'
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_ACTION: 'char', FZF_KEY: '9', FZF_QUERY: '99', FZF_MATCH_COUNT: '1', FZF_POS: '1')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Space
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_INPUT_STATE: 'disabled', FZF_ACTION: 'disable-search', FZF_KEY: 'space')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
   end