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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
"""Reporter foundation for coverage.py."""
import os
import warnings
from coverage.files import prep_patterns, FnmatchMatcher
from coverage.misc import CoverageException, NoSource, NotPython, isolate_module
os = isolate_module(os)
class Reporter(object):
"""A base class for all reporters."""
def __init__(self, coverage, config):
"""Create a reporter.
`coverage` is the coverage instance. `config` is an instance of
CoverageConfig, for controlling all sorts of behavior.
"""
self.coverage = coverage
self.config = config
# The directory into which to place the report, used by some derived
# classes.
self.directory = None
# Our method find_file_reporters used to set an attribute that other
# code could read. That's been refactored away, but some third parties
# were using that attribute. We'll continue to support it in a noisy
# way for now.
self._file_reporters = []
@property
def file_reporters(self):
"""Keep .file_reporters working for private-grabbing tools."""
warnings.warn(
"Report.file_reporters will no longer be available in Coverage.py 4.2",
DeprecationWarning,
)
return self._file_reporters
def find_file_reporters(self, morfs):
"""Find the FileReporters we'll report on.
`morfs` is a list of modules or file names.
Returns a list of FileReporters.
"""
reporters = self.coverage._get_file_reporters(morfs)
if self.config.include:
matcher = FnmatchMatcher(prep_patterns(self.config.include))
reporters = [fr for fr in reporters if matcher.match(fr.filename)]
if self.config.omit:
matcher = FnmatchMatcher(prep_patterns(self.config.omit))
reporters = [fr for fr in reporters if not matcher.match(fr.filename)]
self._file_reporters = sorted(reporters)
return self._file_reporters
def report_files(self, report_fn, morfs, directory=None):
"""Run a reporting function on a number of morfs.
`report_fn` is called for each relative morf in `morfs`. It is called
as::
report_fn(file_reporter, analysis)
where `file_reporter` is the `FileReporter` for the morf, and
`analysis` is the `Analysis` for the morf.
"""
file_reporters = self.find_file_reporters(morfs)
if not file_reporters:
raise CoverageException("No data to report.")
self.directory = directory
if self.directory and not os.path.exists(self.directory):
os.makedirs(self.directory)
for fr in file_reporters:
try:
report_fn(fr, self.coverage._analyze(fr))
except NoSource:
if not self.config.ignore_errors:
raise
except NotPython:
# Only report errors for .py files, and only if we didn't
# explicitly suppress those errors.
# NotPython is only raised by PythonFileReporter, which has a
# should_be_python() method.
if fr.should_be_python():
if self.config.ignore_errors:
self.coverage._warn("Could not parse Python file {0}".format(fr.filename))
else:
raise