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-rw-r--r--pre_commit/color.py10
-rw-r--r--pre_commit/commands/autoupdate.py4
-rw-r--r--pre_commit/commands/hook_impl.py31
-rw-r--r--pre_commit/commands/run.py12
-rw-r--r--pre_commit/languages/docker.py8
-rw-r--r--pre_commit/languages/node.py16
-rw-r--r--pre_commit/languages/python.py6
7 files changed, 67 insertions, 20 deletions
diff --git a/pre_commit/color.py b/pre_commit/color.py
index 5fa7042..eb906b7 100644
--- a/pre_commit/color.py
+++ b/pre_commit/color.py
@@ -11,7 +11,7 @@ if sys.platform == 'win32': # pragma: no cover (windows)
from ctypes.wintypes import DWORD
from ctypes.wintypes import HANDLE
- STD_OUTPUT_HANDLE = -11
+ STD_ERROR_HANDLE = -12
ENABLE_VIRTUAL_TERMINAL_PROCESSING = 4
def bool_errcheck(result, func, args):
@@ -40,9 +40,9 @@ if sys.platform == 'win32': # pragma: no cover (windows)
#
# More info on the escape sequences supported:
# https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx
- stdout = GetStdHandle(STD_OUTPUT_HANDLE)
- flags = GetConsoleMode(stdout)
- SetConsoleMode(stdout, flags | ENABLE_VIRTUAL_TERMINAL_PROCESSING)
+ stderr = GetStdHandle(STD_ERROR_HANDLE)
+ flags = GetConsoleMode(stderr)
+ SetConsoleMode(stderr, flags | ENABLE_VIRTUAL_TERMINAL_PROCESSING)
try:
_enable()
@@ -90,7 +90,7 @@ def use_color(setting: str) -> bool:
return (
setting == 'always' or (
setting == 'auto' and
- sys.stdout.isatty() and
+ sys.stderr.isatty() and
terminal_supports_color and
os.getenv('TERM') != 'dumb'
)
diff --git a/pre_commit/commands/autoupdate.py b/pre_commit/commands/autoupdate.py
index 5a9a988..8c9fdd7 100644
--- a/pre_commit/commands/autoupdate.py
+++ b/pre_commit/commands/autoupdate.py
@@ -93,7 +93,7 @@ def _original_lines(
retry: bool = False,
) -> Tuple[List[str], List[int]]:
"""detect `rev:` lines or reformat the file"""
- with open(path) as f:
+ with open(path, newline='') as f:
original = f.read()
lines = original.splitlines(True)
@@ -126,7 +126,7 @@ def _write_new_config(path: str, rev_infos: List[Optional[RevInfo]]) -> None:
comment = match[4]
lines[idx] = f'{match[1]}rev:{match[2]}{new_rev}{comment}{match[5]}'
- with open(path, 'w') as f:
+ with open(path, 'w', newline='') as f:
f.write(''.join(lines))
diff --git a/pre_commit/commands/hook_impl.py b/pre_commit/commands/hook_impl.py
index 5ff4555..4843fc7 100644
--- a/pre_commit/commands/hook_impl.py
+++ b/pre_commit/commands/hook_impl.py
@@ -147,15 +147,44 @@ def _pre_push_ns(
return None
+_EXPECTED_ARG_LENGTH_BY_HOOK = {
+ 'commit-msg': 1,
+ 'post-checkout': 3,
+ 'pre-commit': 0,
+ 'pre-merge-commit': 0,
+ 'pre-push': 2,
+}
+
+
+def _check_args_length(hook_type: str, args: Sequence[str]) -> None:
+ if hook_type == 'prepare-commit-msg':
+ if len(args) < 1 or len(args) > 3:
+ raise SystemExit(
+ f'hook-impl for {hook_type} expected 1, 2, or 3 arguments '
+ f'but got {len(args)}: {args}',
+ )
+ elif hook_type in _EXPECTED_ARG_LENGTH_BY_HOOK:
+ expected = _EXPECTED_ARG_LENGTH_BY_HOOK[hook_type]
+ if len(args) != expected:
+ arguments_s = 'argument' if expected == 1 else 'arguments'
+ raise SystemExit(
+ f'hook-impl for {hook_type} expected {expected} {arguments_s} '
+ f'but got {len(args)}: {args}',
+ )
+ else:
+ raise AssertionError(f'unexpected hook type: {hook_type}')
+
+
def _run_ns(
hook_type: str,
color: bool,
args: Sequence[str],
stdin: bytes,
) -> Optional[argparse.Namespace]:
+ _check_args_length(hook_type, args)
if hook_type == 'pre-push':
return _pre_push_ns(color, args, stdin)
- elif hook_type in {'prepare-commit-msg', 'commit-msg'}:
+ elif hook_type in {'commit-msg', 'prepare-commit-msg'}:
return _ns(hook_type, color, commit_msg_filename=args[0])
elif hook_type in {'pre-merge-commit', 'pre-commit'}:
return _ns(hook_type, color)
diff --git a/pre_commit/commands/run.py b/pre_commit/commands/run.py
index 2f74578..8c8401c 100644
--- a/pre_commit/commands/run.py
+++ b/pre_commit/commands/run.py
@@ -6,6 +6,7 @@ import os
import re
import subprocess
import time
+import unicodedata
from typing import Any
from typing import Collection
from typing import Dict
@@ -33,8 +34,13 @@ from pre_commit.util import EnvironT
logger = logging.getLogger('pre_commit')
+def _len_cjk(msg: str) -> int:
+ widths = {'A': 1, 'F': 2, 'H': 1, 'N': 1, 'Na': 1, 'W': 2}
+ return sum(widths[unicodedata.east_asian_width(c)] for c in msg)
+
+
def _start_msg(*, start: str, cols: int, end_len: int) -> str:
- dots = '.' * (cols - len(start) - end_len - 1)
+ dots = '.' * (cols - _len_cjk(start) - end_len - 1)
return f'{start}{dots}'
@@ -47,7 +53,7 @@ def _full_msg(
use_color: bool,
postfix: str = '',
) -> str:
- dots = '.' * (cols - len(start) - len(postfix) - len(end_msg) - 1)
+ dots = '.' * (cols - _len_cjk(start) - len(postfix) - len(end_msg) - 1)
end = color.format_color(end_msg, end_color, use_color)
return f'{start}{dots}{postfix}{end}\n'
@@ -206,7 +212,7 @@ def _compute_cols(hooks: Sequence[Hook]) -> int:
Hook name...(no files to check) Skipped
"""
if hooks:
- name_len = max(len(hook.name) for hook in hooks)
+ name_len = max(_len_cjk(hook.name) for hook in hooks)
else:
name_len = 0
diff --git a/pre_commit/languages/docker.py b/pre_commit/languages/docker.py
index f449584..4091492 100644
--- a/pre_commit/languages/docker.py
+++ b/pre_commit/languages/docker.py
@@ -76,18 +76,18 @@ def install_environment(
os.mkdir(directory)
-def get_docker_user() -> str: # pragma: win32 no cover
+def get_docker_user() -> Tuple[str, ...]: # pragma: win32 no cover
try:
- return f'{os.getuid()}:{os.getgid()}'
+ return ('-u', f'{os.getuid()}:{os.getgid()}')
except AttributeError:
- return '1000:1000'
+ return ()
def docker_cmd() -> Tuple[str, ...]: # pragma: win32 no cover
return (
'docker', 'run',
'--rm',
- '-u', get_docker_user(),
+ *get_docker_user(),
# https://docs.docker.com/engine/reference/commandline/run/#mount-volumes-from-container-volumes-from
# The `Z` option tells Docker to label the content with a private
# unshared label. Only the current container can use a private volume.
diff --git a/pre_commit/languages/node.py b/pre_commit/languages/node.py
index 79ff807..9b636d3 100644
--- a/pre_commit/languages/node.py
+++ b/pre_commit/languages/node.py
@@ -1,4 +1,5 @@
import contextlib
+import functools
import os
import sys
from typing import Generator
@@ -6,6 +7,7 @@ from typing import Sequence
from typing import Tuple
import pre_commit.constants as C
+from pre_commit import parse_shebang
from pre_commit.envcontext import envcontext
from pre_commit.envcontext import PatchesT
from pre_commit.envcontext import Var
@@ -18,10 +20,22 @@ from pre_commit.util import cmd_output
from pre_commit.util import cmd_output_b
ENVIRONMENT_DIR = 'node_env'
-get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
+@functools.lru_cache(maxsize=1)
+def get_default_version() -> str:
+ # nodeenv does not yet support `-n system` on windows
+ if sys.platform == 'win32':
+ return C.DEFAULT
+ # if node is already installed, we can save a bunch of setup time by
+ # using the installed version
+ elif all(parse_shebang.find_executable(exe) for exe in ('node', 'npm')):
+ return 'system'
+ else:
+ return C.DEFAULT
+
+
def _envdir(prefix: Prefix, version: str) -> str:
directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
return prefix.path(directory)
diff --git a/pre_commit/languages/python.py b/pre_commit/languages/python.py
index 5073a8b..85d8281 100644
--- a/pre_commit/languages/python.py
+++ b/pre_commit/languages/python.py
@@ -182,8 +182,8 @@ def py_interface(
version: str,
additional_dependencies: Sequence[str],
) -> None:
- additional_dependencies = tuple(additional_dependencies)
directory = helpers.environment_dir(_dir, version)
+ install = ('python', '-mpip', 'install', '.', *additional_dependencies)
env_dir = prefix.path(directory)
with clean_path_on_failure(env_dir):
@@ -193,9 +193,7 @@ def py_interface(
python = os.path.realpath(sys.executable)
_make_venv(env_dir, python)
with in_env(prefix, version):
- helpers.run_setup_cmd(
- prefix, ('pip', 'install', '.') + additional_dependencies,
- )
+ helpers.run_setup_cmd(prefix, install)
return in_env, healthy, run_hook, install_environment