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Free up memory used to store copy of child env block

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Kovid Goyal 2022-04-17 08:35:55 +05:30
parent 3af11e92d6
commit 34c18bacd8
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 30 additions and 32 deletions
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60
kitty/child.py
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@ -224,38 +224,36 @@ class Child:
self.stdin = stdin
self.env = env or {}
@property
def final_env(self) -> Dict[str, str]:
from kitty.options.utils import DELETE_ENV_VAR
env: Optional[Dict[str, str]] = getattr(self, '_final_env', None)
if env is None:
env = self._final_env = default_env().copy()
if is_macos and env.get('LC_CTYPE') == 'UTF-8' and not sys._xoptions.get(
'lc_ctype_before_python') and not getattr(default_env, 'lc_ctype_set_by_user', False):
del env['LC_CTYPE']
env.update(self.env)
env['TERM'] = fast_data_types.get_options().term
env['COLORTERM'] = 'truecolor'
env['KITTY_PID'] = getpid()
if self.cwd:
# needed in case cwd is a symlink, in which case shells
# can use it to display the current directory name rather
# than the resolved path
env['PWD'] = self.cwd
tdir = checked_terminfo_dir()
if tdir:
env['TERMINFO'] = tdir
env['KITTY_INSTALLATION_DIR'] = kitty_base_dir
opts = fast_data_types.get_options()
self.unmodified_argv = list(self.argv)
if 'disabled' not in opts.shell_integration:
from .shell_integration import modify_shell_environ
modify_shell_environ(opts, env, self.argv)
env = {k: v for k, v in env.items() if v is not DELETE_ENV_VAR}
if self.is_clone_launch:
env['KITTY_IS_CLONE_LAUNCH'] = self.is_clone_launch
else:
env.pop('KITTY_IS_CLONE_LAUNCH', None)
env = default_env().copy()
if is_macos and env.get('LC_CTYPE') == 'UTF-8' and not sys._xoptions.get(
'lc_ctype_before_python') and not getattr(default_env, 'lc_ctype_set_by_user', False):
del env['LC_CTYPE']
env.update(self.env)
env['TERM'] = fast_data_types.get_options().term
env['COLORTERM'] = 'truecolor'
env['KITTY_PID'] = getpid()
if self.cwd:
# needed in case cwd is a symlink, in which case shells
# can use it to display the current directory name rather
# than the resolved path
env['PWD'] = self.cwd
tdir = checked_terminfo_dir()
if tdir:
env['TERMINFO'] = tdir
env['KITTY_INSTALLATION_DIR'] = kitty_base_dir
opts = fast_data_types.get_options()
self.unmodified_argv = list(self.argv)
if 'disabled' not in opts.shell_integration:
from .shell_integration import modify_shell_environ
modify_shell_environ(opts, env, self.argv)
env = {k: v for k, v in env.items() if v is not DELETE_ENV_VAR}
if self.is_clone_launch:
env['KITTY_IS_CLONE_LAUNCH'] = self.is_clone_launch
self.is_clone_launch = '1' # free memory
else:
env.pop('KITTY_IS_CLONE_LAUNCH', None)
return env
def fork(self) -> Optional[int]:
@ -271,7 +269,7 @@ class Child:
remove_cloexec(stdin_read_fd)
else:
stdin_read_fd = stdin_write_fd = -1
env = tuple(f'{k}={v}' for k, v in self.final_env.items())
env = tuple(f'{k}={v}' for k, v in self.final_env().items())
argv = list(self.argv)
exe = argv[0]
if is_macos and exe == shell_path:

2
kitty/window.py
View File

@ -881,7 +881,7 @@ class Window:
if cb and cb != ['none']:
import shlex
import subprocess
env = self.child.final_env
env = self.child.foreground_environ
env['KITTY_CHILD_CMDLINE'] = ' '.join(map(shlex.quote, self.child.cmdline))
subprocess.Popen(cb, env=env, cwd=self.child.foreground_cwd)
if not self.is_active: