blob: 6c5510ad467744cae7ee1e9cc742a3b90daf4ffd [file] [log] [blame]
"""Reporter foundation for Coverage."""
import fnmatch, os
from coverage.codeunit import code_unit_factory
from coverage.misc import CoverageException, NoSource, NotPython
class Reporter(object):
"""A base class for all reporters."""
def __init__(self, coverage, ignore_errors=False):
"""Create a reporter.
`coverage` is the coverage instance. `ignore_errors` controls how
skittish the reporter will be during file processing.
"""
self.coverage = coverage
self.ignore_errors = ignore_errors
# The code units to report on. Set by find_code_units.
self.code_units = []
# The directory into which to place the report, used by some derived
# classes.
self.directory = None
def find_code_units(self, morfs, config):
"""Find the code units we'll report on.
`morfs` is a list of modules or filenames. `config` is a
CoverageConfig instance.
"""
morfs = morfs or self.coverage.data.measured_files()
file_locator = self.coverage.file_locator
self.code_units = code_unit_factory(morfs, file_locator)
if config.include:
patterns = [file_locator.abs_file(p) for p in config.include]
filtered = []
for cu in self.code_units:
for pattern in patterns:
if fnmatch.fnmatch(cu.filename, pattern):
filtered.append(cu)
break
self.code_units = filtered
if config.omit:
patterns = [file_locator.abs_file(p) for p in config.omit]
filtered = []
for cu in self.code_units:
for pattern in patterns:
if fnmatch.fnmatch(cu.filename, pattern):
break
else:
filtered.append(cu)
self.code_units = filtered
self.code_units.sort()
def report_files(self, report_fn, morfs, config, 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(code_unit, analysis)
where `code_unit` is the `CodeUnit` for the morf, and `analysis` is
the `Analysis` for the morf.
`config` is a CoverageConfig instance.
"""
self.find_code_units(morfs, config)
if not self.code_units:
raise CoverageException("No data to report.")
self.directory = directory
if self.directory and not os.path.exists(self.directory):
os.makedirs(self.directory)
for cu in self.code_units:
try:
report_fn(cu, self.coverage._analyze(cu))
except (NoSource, NotPython):
if not self.ignore_errors:
raise