Add various special purpose entry points

gen-go-code.py

@@ -66,6 +66,22 @@ def generate_completions_for_kitty() -> None:
     print('k.Subcommand_must_be_first = true')
     for opt in go_options_for_seq(parse_option_spec()[0]):
         print(opt.as_completion_option('k'))
+    print('plus := k.add_command("+", "Entry point")')
+    print('plus.Description = "Various special purpose tools and kittens"')
+
+    print('plus_launch := plus.add_command("launch", "Launch Python script")')
+    print('plus_launch.Completion_for_arg = complete_plus_launch')
+    print('k.add_clone("+launch", "Launch Python scripts", plus_launch)')
+
+    print('plus_runpy := plus.add_command("runpy", "Run python code")')
+    print('plus_runpy.Completion_for_arg = complete_plus_runpy')
+    print('k.add_clone("+runpy", "Run Python code", plus_runpy)')
+
+    print('plus_open := plus.add_command("open", "Open files and URLs")')
+    print('plus_open.Completion_for_arg = complete_plus_open')
+    print('plus_open.clone_options_from(k)')
+    print('k.add_clone("+open", "Open files and URLs", plus_open)')
+
     print('at := k.add_command("@", "Remote control")')
     print('at.Description = "Control kitty using commands"')
     for go_name in all_command_names():

kitty_tests/completion.py

@@ -79,7 +79,7 @@ def completion(self: TestCompletion, tdir: str):
         self.assertEqual(cp.returncode, 0, f'kitty-tool __complete__ failed with exit code: {cp.returncode}')
         return json.loads(cp.stdout)
 
-    add('kitty ', has_words('@', '@ls'))
+    add('kitty ', has_words('@', '@ls', '+', '+open'))
     add('kitty @ l', has_words('ls', 'last-used-layout', 'launch'))
     add('kitty @l', has_words('@ls', '@last-used-layout', '@launch'))
 
@@ -112,6 +112,8 @@ def completion(self: TestCompletion, tdir: str):
     add('kitty @ set-window-logo ', all_words('exe-not2.jpeg', 'sub/'))
     add('kitty @ set-window-logo e', all_words('exe-not2.jpeg'))
     add('kitty @ set-window-logo e e', all_words())
+    add('kitty +ope', has_words('+open'))
+    add('kitty +open -', has_words('-1', '-T'))
 
     add('kitty -', has_words('-c', '-1', '--'), does_not_have_words('--config', '--single-instance'))
     add('kitty -c', all_words('-c'))

tools/completion/kitty.go

@@ -47,3 +47,28 @@ func complete_kitty(completions *Completions, word string, arg_num int) {
 		}, "")
 	}
 }
+
+func complete_plus_launch(completions *Completions, word string, arg_num int) {
+	if arg_num == 1 {
+		fnmatch_completer("Python scripts", CWD, "*.py")(completions, word, arg_num)
+		if strings.HasPrefix(word, ":") {
+			exes := complete_executables_in_path(word[1:])
+			mg := completions.add_match_group("Python scripts in PATH")
+			for _, exe := range exes {
+				mg.add_match(":" + exe)
+			}
+		}
+	} else {
+		fnmatch_completer("Files", CWD, "*")(completions, word, arg_num)
+	}
+}
+
+func complete_plus_runpy(completions *Completions, word string, arg_num int) {
+	if arg_num > 1 {
+		fnmatch_completer("Files", CWD, "*")(completions, word, arg_num)
+	}
+}
+
+func complete_plus_open(completions *Completions, word string, arg_num int) {
+	fnmatch_completer("Files", CWD, "*")(completions, word, arg_num)
+}

tools/completion/types.go

@@ -22,6 +22,12 @@ func (self *MatchGroup) add_match(word string, description ...string) *Match {
 	return &ans
 }
 
+func (self *MatchGroup) add_prefix_to_all_matches(prefix string) {
+	for _, m := range self.Matches {
+		m.Word = prefix + m.Word
+	}
+}
+
 type Completions struct {
 	Groups []*MatchGroup `json:"groups,omitempty"`
 
@@ -32,9 +38,7 @@ type Completions struct {
 
 func (self *Completions) add_prefix_to_all_matches(prefix string) {
 	for _, mg := range self.Groups {
-		for _, m := range mg.Matches {
-			m.Word = prefix + m.Word
-		}
+		mg.add_prefix_to_all_matches(prefix)
 	}
 }
 
@@ -77,6 +81,12 @@ type Command struct {
 	Subcommand_must_be_first        bool
 }
 
+func (self *Command) clone_options_from(other *Command) {
+	for _, opt := range other.Options {
+		self.Options = append(self.Options, opt)
+	}
+}
+
 func (self *Command) add_group(name string) *CommandGroup {
 	for _, g := range self.Groups {
 		if g.Title == name {