213 lines
7.3 KiB
Python
213 lines
7.3 KiB
Python
# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
|
|
# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
|
|
|
|
"""Coverage data for coverage.py.
|
|
|
|
This file had the 4.x JSON data support, which is now gone. This file still
|
|
has storage-agnostic helpers, and is kept to avoid changing too many imports.
|
|
CoverageData is now defined in sqldata.py, and imported here to keep the
|
|
imports working.
|
|
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import glob
|
|
import hashlib
|
|
import os.path
|
|
|
|
from typing import Callable, Dict, Iterable, List, Optional
|
|
|
|
from coverage.exceptions import CoverageException, NoDataError
|
|
from coverage.files import PathAliases
|
|
from coverage.misc import Hasher, file_be_gone, human_sorted, plural
|
|
from coverage.sqldata import CoverageData
|
|
|
|
|
|
def line_counts(data: CoverageData, fullpath: bool = False) -> Dict[str, int]:
|
|
"""Return a dict summarizing the line coverage data.
|
|
|
|
Keys are based on the file names, and values are the number of executed
|
|
lines. If `fullpath` is true, then the keys are the full pathnames of
|
|
the files, otherwise they are the basenames of the files.
|
|
|
|
Returns a dict mapping file names to counts of lines.
|
|
|
|
"""
|
|
summ = {}
|
|
filename_fn: Callable[[str], str]
|
|
if fullpath:
|
|
# pylint: disable=unnecessary-lambda-assignment
|
|
filename_fn = lambda f: f
|
|
else:
|
|
filename_fn = os.path.basename
|
|
for filename in data.measured_files():
|
|
lines = data.lines(filename)
|
|
assert lines is not None
|
|
summ[filename_fn(filename)] = len(lines)
|
|
return summ
|
|
|
|
|
|
def add_data_to_hash(data: CoverageData, filename: str, hasher: Hasher) -> None:
|
|
"""Contribute `filename`'s data to the `hasher`.
|
|
|
|
`hasher` is a `coverage.misc.Hasher` instance to be updated with
|
|
the file's data. It should only get the results data, not the run
|
|
data.
|
|
|
|
"""
|
|
if data.has_arcs():
|
|
hasher.update(sorted(data.arcs(filename) or []))
|
|
else:
|
|
hasher.update(sorted_lines(data, filename))
|
|
hasher.update(data.file_tracer(filename))
|
|
|
|
|
|
def combinable_files(data_file: str, data_paths: Optional[Iterable[str]] = None) -> List[str]:
|
|
"""Make a list of data files to be combined.
|
|
|
|
`data_file` is a path to a data file. `data_paths` is a list of files or
|
|
directories of files.
|
|
|
|
Returns a list of absolute file paths.
|
|
"""
|
|
data_dir, local = os.path.split(os.path.abspath(data_file))
|
|
|
|
data_paths = data_paths or [data_dir]
|
|
files_to_combine = []
|
|
for p in data_paths:
|
|
if os.path.isfile(p):
|
|
files_to_combine.append(os.path.abspath(p))
|
|
elif os.path.isdir(p):
|
|
pattern = glob.escape(os.path.join(os.path.abspath(p), local)) +".*"
|
|
files_to_combine.extend(glob.glob(pattern))
|
|
else:
|
|
raise NoDataError(f"Couldn't combine from non-existent path '{p}'")
|
|
return files_to_combine
|
|
|
|
|
|
def combine_parallel_data(
|
|
data: CoverageData,
|
|
aliases: Optional[PathAliases] = None,
|
|
data_paths: Optional[Iterable[str]] = None,
|
|
strict: bool = False,
|
|
keep: bool = False,
|
|
message: Optional[Callable[[str], None]] = None,
|
|
) -> None:
|
|
"""Combine a number of data files together.
|
|
|
|
`data` is a CoverageData.
|
|
|
|
Treat `data.filename` as a file prefix, and combine the data from all
|
|
of the data files starting with that prefix plus a dot.
|
|
|
|
If `aliases` is provided, it's a `PathAliases` object that is used to
|
|
re-map paths to match the local machine's.
|
|
|
|
If `data_paths` is provided, it is a list of directories or files to
|
|
combine. Directories are searched for files that start with
|
|
`data.filename` plus dot as a prefix, and those files are combined.
|
|
|
|
If `data_paths` is not provided, then the directory portion of
|
|
`data.filename` is used as the directory to search for data files.
|
|
|
|
Unless `keep` is True every data file found and combined is then deleted
|
|
from disk. If a file cannot be read, a warning will be issued, and the
|
|
file will not be deleted.
|
|
|
|
If `strict` is true, and no files are found to combine, an error is
|
|
raised.
|
|
|
|
`message` is a function to use for printing messages to the user.
|
|
|
|
"""
|
|
files_to_combine = combinable_files(data.base_filename(), data_paths)
|
|
|
|
if strict and not files_to_combine:
|
|
raise NoDataError("No data to combine")
|
|
|
|
file_hashes = set()
|
|
combined_any = False
|
|
|
|
for f in files_to_combine:
|
|
if f == data.data_filename():
|
|
# Sometimes we are combining into a file which is one of the
|
|
# parallel files. Skip that file.
|
|
if data._debug.should("dataio"):
|
|
data._debug.write(f"Skipping combining ourself: {f!r}")
|
|
continue
|
|
|
|
try:
|
|
rel_file_name = os.path.relpath(f)
|
|
except ValueError:
|
|
# ValueError can be raised under Windows when os.getcwd() returns a
|
|
# folder from a different drive than the drive of f, in which case
|
|
# we print the original value of f instead of its relative path
|
|
rel_file_name = f
|
|
|
|
with open(f, "rb") as fobj:
|
|
hasher = hashlib.new("sha3_256")
|
|
hasher.update(fobj.read())
|
|
sha = hasher.digest()
|
|
combine_this_one = sha not in file_hashes
|
|
|
|
delete_this_one = not keep
|
|
if combine_this_one:
|
|
if data._debug.should("dataio"):
|
|
data._debug.write(f"Combining data file {f!r}")
|
|
file_hashes.add(sha)
|
|
try:
|
|
new_data = CoverageData(f, debug=data._debug)
|
|
new_data.read()
|
|
except CoverageException as exc:
|
|
if data._warn:
|
|
# The CoverageException has the file name in it, so just
|
|
# use the message as the warning.
|
|
data._warn(str(exc))
|
|
if message:
|
|
message(f"Couldn't combine data file {rel_file_name}: {exc}")
|
|
delete_this_one = False
|
|
else:
|
|
data.update(new_data, aliases=aliases)
|
|
combined_any = True
|
|
if message:
|
|
message(f"Combined data file {rel_file_name}")
|
|
else:
|
|
if message:
|
|
message(f"Skipping duplicate data {rel_file_name}")
|
|
|
|
if delete_this_one:
|
|
if data._debug.should("dataio"):
|
|
data._debug.write(f"Deleting data file {f!r}")
|
|
file_be_gone(f)
|
|
|
|
if strict and not combined_any:
|
|
raise NoDataError("No usable data files")
|
|
|
|
|
|
def debug_data_file(filename: str) -> None:
|
|
"""Implementation of 'coverage debug data'."""
|
|
data = CoverageData(filename)
|
|
filename = data.data_filename()
|
|
print(f"path: {filename}")
|
|
if not os.path.exists(filename):
|
|
print("No data collected: file doesn't exist")
|
|
return
|
|
data.read()
|
|
print(f"has_arcs: {data.has_arcs()!r}")
|
|
summary = line_counts(data, fullpath=True)
|
|
filenames = human_sorted(summary.keys())
|
|
nfiles = len(filenames)
|
|
print(f"{nfiles} file{plural(nfiles)}:")
|
|
for f in filenames:
|
|
line = f"{f}: {summary[f]} line{plural(summary[f])}"
|
|
plugin = data.file_tracer(f)
|
|
if plugin:
|
|
line += f" [{plugin}]"
|
|
print(line)
|
|
|
|
|
|
def sorted_lines(data: CoverageData, filename: str) -> List[int]:
|
|
"""Get the sorted lines for a file, for tests."""
|
|
lines = data.lines(filename)
|
|
return sorted(lines or [])
|