A new mappable action to show kitty docs in the browser

docs/changelog.rst

@@ -44,6 +44,8 @@ Detailed list of changes
 
 - A new option :opt:`modify_font` to adjust various font metrics like underlines, cell sizes etc. (:pull:`5265`)
 
+- A new mappable action :ac:`show_kitty_doc` to display the kitty docs in a browser
+
 - Graphics protocol: Only delete temp files if they have the string
   :code:`tty-graphics-protocol` in their file paths. This prevents deletion of arbitrary files in :file:`/tmp`.
 

kitty/options/utils.py

@@ -136,7 +136,7 @@ def detach_tab_parse(func: str, rest: str) -> FuncArgsType:
     return func, (rest,)
 
 
-@func_with_args('set_background_opacity', 'goto_layout', 'toggle_layout', 'kitty_shell')
+@func_with_args('set_background_opacity', 'goto_layout', 'toggle_layout', 'kitty_shell', 'show_kitty_doc')
 def simple_parse(func: str, rest: str) -> FuncArgsType:
     return func, [rest]
 

kitty/utils.py

@@ -1069,3 +1069,18 @@ def safer_fork() -> int:
         import atexit
         atexit._clear()
     return pid
+
+
+def docs_url(which: str = '', local_docs_root: str = '') -> str:
+    from urllib.parse import quote
+    from .constants import local_docs, website_url
+    ld = local_docs_root or local_docs()
+    base, frag = which.partition('#')[::2]
+    if ld:
+        base = base or 'index'
+        url = f'file://{ld}/' + quote(base) + '.html'
+    else:
+        url = website_url(base)
+    if frag:
+        url += '#' + frag
+    return url

kitty/window.py

@@ -48,8 +48,8 @@ from .terminfo import get_capabilities
 from .types import MouseEvent, WindowGeometry, ac, run_once
 from .typing import BossType, ChildType, EdgeLiteral, TabType, TypedDict
 from .utils import (
-    get_primary_selection, kitty_ansi_sanitizer_pat, load_shaders, log_error,
+    docs_url, get_primary_selection, kitty_ansi_sanitizer_pat, load_shaders,
-    open_cmd, open_url, parse_color_set, path_from_osc7_url,
+    log_error, open_cmd, open_url, parse_color_set, path_from_osc7_url,
     resolve_custom_file, resolved_shell, sanitize_title, set_primary_selection
 )
 
@@ -1669,4 +1669,18 @@ class Window:
         if pid is not None:
             for sig in signals:
                 os.kill(pid, sig)
+
+    @ac('misc', '''
+    Display the specified kitty documentation, preferring a local copy, if found.
+
+    For example::
+
+        # show the config docs
+        map F1 show_kitty_doc conf
+        # show the ssh kitten docs
+        map F1 show_kitty_doc kittens/ssh
+    ''')
+    def show_kitty_doc(self, which: str = '') -> None:
+        url = docs_url(which)
+        get_boss().open_url(url)
     # }}}

kitty_tests/check_build.py

@@ -5,6 +5,7 @@
 import os
 import sys
 import unittest
+from functools import partial
 
 from . import BaseTest
 
@@ -74,6 +75,13 @@ class TestBuild(BaseTest):
         import pygments
         del pygments
 
+    def test_docs_url(self):
+        from kitty.utils import docs_url
+        p = partial(docs_url, local_docs_root='/docs')
+        self.ae(p(), 'file:///docs/index.html')
+        self.ae(p('conf'), 'file:///docs/conf.html')
+        self.ae(p('kittens/ssh#frag'), 'file:///docs/kittens/ssh.html#frag')
+
 
 def main() -> None:
     tests = unittest.defaultTestLoader.loadTestsFromTestCase(TestBuild)