260 lines
9 KiB
Python
260 lines
9 KiB
Python
import logging
|
|
import os
|
|
import shlex
|
|
import subprocess
|
|
from typing import (
|
|
TYPE_CHECKING,
|
|
Any,
|
|
Callable,
|
|
Iterable,
|
|
List,
|
|
Mapping,
|
|
Optional,
|
|
Union,
|
|
)
|
|
|
|
from pip._vendor.rich.markup import escape
|
|
|
|
from pip._internal.cli.spinners import SpinnerInterface, open_spinner
|
|
from pip._internal.exceptions import InstallationSubprocessError
|
|
from pip._internal.utils.logging import VERBOSE, subprocess_logger
|
|
from pip._internal.utils.misc import HiddenText
|
|
|
|
if TYPE_CHECKING:
|
|
# Literal was introduced in Python 3.8.
|
|
#
|
|
# TODO: Remove `if TYPE_CHECKING` when dropping support for Python 3.7.
|
|
from typing import Literal
|
|
|
|
CommandArgs = List[Union[str, HiddenText]]
|
|
|
|
|
|
def make_command(*args: Union[str, HiddenText, CommandArgs]) -> CommandArgs:
|
|
"""
|
|
Create a CommandArgs object.
|
|
"""
|
|
command_args: CommandArgs = []
|
|
for arg in args:
|
|
# Check for list instead of CommandArgs since CommandArgs is
|
|
# only known during type-checking.
|
|
if isinstance(arg, list):
|
|
command_args.extend(arg)
|
|
else:
|
|
# Otherwise, arg is str or HiddenText.
|
|
command_args.append(arg)
|
|
|
|
return command_args
|
|
|
|
|
|
def format_command_args(args: Union[List[str], CommandArgs]) -> str:
|
|
"""
|
|
Format command arguments for display.
|
|
"""
|
|
# For HiddenText arguments, display the redacted form by calling str().
|
|
# Also, we don't apply str() to arguments that aren't HiddenText since
|
|
# this can trigger a UnicodeDecodeError in Python 2 if the argument
|
|
# has type unicode and includes a non-ascii character. (The type
|
|
# checker doesn't ensure the annotations are correct in all cases.)
|
|
return " ".join(
|
|
shlex.quote(str(arg)) if isinstance(arg, HiddenText) else shlex.quote(arg)
|
|
for arg in args
|
|
)
|
|
|
|
|
|
def reveal_command_args(args: Union[List[str], CommandArgs]) -> List[str]:
|
|
"""
|
|
Return the arguments in their raw, unredacted form.
|
|
"""
|
|
return [arg.secret if isinstance(arg, HiddenText) else arg for arg in args]
|
|
|
|
|
|
def call_subprocess(
|
|
cmd: Union[List[str], CommandArgs],
|
|
show_stdout: bool = False,
|
|
cwd: Optional[str] = None,
|
|
on_returncode: 'Literal["raise", "warn", "ignore"]' = "raise",
|
|
extra_ok_returncodes: Optional[Iterable[int]] = None,
|
|
extra_environ: Optional[Mapping[str, Any]] = None,
|
|
unset_environ: Optional[Iterable[str]] = None,
|
|
spinner: Optional[SpinnerInterface] = None,
|
|
log_failed_cmd: Optional[bool] = True,
|
|
stdout_only: Optional[bool] = False,
|
|
*,
|
|
command_desc: str,
|
|
) -> str:
|
|
"""
|
|
Args:
|
|
show_stdout: if true, use INFO to log the subprocess's stderr and
|
|
stdout streams. Otherwise, use DEBUG. Defaults to False.
|
|
extra_ok_returncodes: an iterable of integer return codes that are
|
|
acceptable, in addition to 0. Defaults to None, which means [].
|
|
unset_environ: an iterable of environment variable names to unset
|
|
prior to calling subprocess.Popen().
|
|
log_failed_cmd: if false, failed commands are not logged, only raised.
|
|
stdout_only: if true, return only stdout, else return both. When true,
|
|
logging of both stdout and stderr occurs when the subprocess has
|
|
terminated, else logging occurs as subprocess output is produced.
|
|
"""
|
|
if extra_ok_returncodes is None:
|
|
extra_ok_returncodes = []
|
|
if unset_environ is None:
|
|
unset_environ = []
|
|
# Most places in pip use show_stdout=False. What this means is--
|
|
#
|
|
# - We connect the child's output (combined stderr and stdout) to a
|
|
# single pipe, which we read.
|
|
# - We log this output to stderr at DEBUG level as it is received.
|
|
# - If DEBUG logging isn't enabled (e.g. if --verbose logging wasn't
|
|
# requested), then we show a spinner so the user can still see the
|
|
# subprocess is in progress.
|
|
# - If the subprocess exits with an error, we log the output to stderr
|
|
# at ERROR level if it hasn't already been displayed to the console
|
|
# (e.g. if --verbose logging wasn't enabled). This way we don't log
|
|
# the output to the console twice.
|
|
#
|
|
# If show_stdout=True, then the above is still done, but with DEBUG
|
|
# replaced by INFO.
|
|
if show_stdout:
|
|
# Then log the subprocess output at INFO level.
|
|
log_subprocess: Callable[..., None] = subprocess_logger.info
|
|
used_level = logging.INFO
|
|
else:
|
|
# Then log the subprocess output using VERBOSE. This also ensures
|
|
# it will be logged to the log file (aka user_log), if enabled.
|
|
log_subprocess = subprocess_logger.verbose
|
|
used_level = VERBOSE
|
|
|
|
# Whether the subprocess will be visible in the console.
|
|
showing_subprocess = subprocess_logger.getEffectiveLevel() <= used_level
|
|
|
|
# Only use the spinner if we're not showing the subprocess output
|
|
# and we have a spinner.
|
|
use_spinner = not showing_subprocess and spinner is not None
|
|
|
|
log_subprocess("Running command %s", command_desc)
|
|
env = os.environ.copy()
|
|
if extra_environ:
|
|
env.update(extra_environ)
|
|
for name in unset_environ:
|
|
env.pop(name, None)
|
|
try:
|
|
proc = subprocess.Popen(
|
|
# Convert HiddenText objects to the underlying str.
|
|
reveal_command_args(cmd),
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT if not stdout_only else subprocess.PIPE,
|
|
cwd=cwd,
|
|
env=env,
|
|
errors="backslashreplace",
|
|
)
|
|
except Exception as exc:
|
|
if log_failed_cmd:
|
|
subprocess_logger.critical(
|
|
"Error %s while executing command %s",
|
|
exc,
|
|
command_desc,
|
|
)
|
|
raise
|
|
all_output = []
|
|
if not stdout_only:
|
|
assert proc.stdout
|
|
assert proc.stdin
|
|
proc.stdin.close()
|
|
# In this mode, stdout and stderr are in the same pipe.
|
|
while True:
|
|
line: str = proc.stdout.readline()
|
|
if not line:
|
|
break
|
|
line = line.rstrip()
|
|
all_output.append(line + "\n")
|
|
|
|
# Show the line immediately.
|
|
log_subprocess(line)
|
|
# Update the spinner.
|
|
if use_spinner:
|
|
assert spinner
|
|
spinner.spin()
|
|
try:
|
|
proc.wait()
|
|
finally:
|
|
if proc.stdout:
|
|
proc.stdout.close()
|
|
output = "".join(all_output)
|
|
else:
|
|
# In this mode, stdout and stderr are in different pipes.
|
|
# We must use communicate() which is the only safe way to read both.
|
|
out, err = proc.communicate()
|
|
# log line by line to preserve pip log indenting
|
|
for out_line in out.splitlines():
|
|
log_subprocess(out_line)
|
|
all_output.append(out)
|
|
for err_line in err.splitlines():
|
|
log_subprocess(err_line)
|
|
all_output.append(err)
|
|
output = out
|
|
|
|
proc_had_error = proc.returncode and proc.returncode not in extra_ok_returncodes
|
|
if use_spinner:
|
|
assert spinner
|
|
if proc_had_error:
|
|
spinner.finish("error")
|
|
else:
|
|
spinner.finish("done")
|
|
if proc_had_error:
|
|
if on_returncode == "raise":
|
|
error = InstallationSubprocessError(
|
|
command_description=command_desc,
|
|
exit_code=proc.returncode,
|
|
output_lines=all_output if not showing_subprocess else None,
|
|
)
|
|
if log_failed_cmd:
|
|
subprocess_logger.error("[present-rich] %s", error)
|
|
subprocess_logger.verbose(
|
|
"[bold magenta]full command[/]: [blue]%s[/]",
|
|
escape(format_command_args(cmd)),
|
|
extra={"markup": True},
|
|
)
|
|
subprocess_logger.verbose(
|
|
"[bold magenta]cwd[/]: %s",
|
|
escape(cwd or "[inherit]"),
|
|
extra={"markup": True},
|
|
)
|
|
|
|
raise error
|
|
elif on_returncode == "warn":
|
|
subprocess_logger.warning(
|
|
'Command "%s" had error code %s in %s',
|
|
command_desc,
|
|
proc.returncode,
|
|
cwd,
|
|
)
|
|
elif on_returncode == "ignore":
|
|
pass
|
|
else:
|
|
raise ValueError(f"Invalid value: on_returncode={on_returncode!r}")
|
|
return output
|
|
|
|
|
|
def runner_with_spinner_message(message: str) -> Callable[..., None]:
|
|
"""Provide a subprocess_runner that shows a spinner message.
|
|
|
|
Intended for use with for pep517's Pep517HookCaller. Thus, the runner has
|
|
an API that matches what's expected by Pep517HookCaller.subprocess_runner.
|
|
"""
|
|
|
|
def runner(
|
|
cmd: List[str],
|
|
cwd: Optional[str] = None,
|
|
extra_environ: Optional[Mapping[str, Any]] = None,
|
|
) -> None:
|
|
with open_spinner(message) as spinner:
|
|
call_subprocess(
|
|
cmd,
|
|
command_desc=message,
|
|
cwd=cwd,
|
|
extra_environ=extra_environ,
|
|
spinner=spinner,
|
|
)
|
|
|
|
return runner
|