Increase Font Size By 6¶
This script increases the font size of a session by six points. It demonstrates changing a session’s profile without updating the underlying profile. It also demonstrates parsing and modifying font settings, as well as registering an RPC.
You can bind it to a keystroke by adding a new key binding in Prefs > Keys, selecting the action Invoke Script Function, and giving it the invocation increase_font_size(session_id: id).
#!/usr/bin/env python3.7 import iterm2 import re async def main(connection): app = await iterm2.async_get_app(connection) # This regex splits the font into its name and size. Fonts always end with # their size in points, preceded by a space. r = re.compile(r'^(.* )(\d*)$') @iterm2.RPC async def increase_font_size(session_id): session = app.get_session_by_id(session_id) if not session: return # Get the session's profile because we need to know its font. profile = await session.async_get_profile() # Extract the name and point size of the font using a regex. font = profile.normal_font match = r.search(font) if not match: return groups = match.groups() name = groups size = int(groups) # Prepare an update to the profile that increases the font size # by 6 points. replacement = name + str(size + 6) change = iterm2.LocalWriteOnlyProfile() change.set_normal_font(replacement) # Update the session's copy of its profile without updating the # underlying profile. await session.async_set_profile_properties(change) await increase_font_size.async_register(connection) iterm2.run_forever(main)