Add coverage

tools/telemetry/third_party/coverage/coverage/report.py

Index: tools/telemetry/third_party/coverage/coverage/report.py
diff --git a/tools/telemetry/third_party/coverage/coverage/report.py b/tools/telemetry/third_party/coverage/coverage/report.py
new file mode 100644
index 0000000000000000000000000000000000000000..f153aa5ac95e98b9bd98654e55e380a5ce2663f7
--- /dev/null
+++ b/tools/telemetry/third_party/coverage/coverage/report.py
@@ -0,0 +1,93 @@
+# 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
+
+from coverage.files import prep_patterns, FnmatchMatcher
+from coverage.misc import CoverageException, NoSource, NotPython
+
+
+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 FileReporters to report on.  Set by find_file_reporters.
+        self.file_reporters = []
+
+        # The directory into which to place the report, used by some derived
+        # classes.
+        self.directory = None
+
+    def find_file_reporters(self, morfs):
+        """Find the FileReporters we'll report on.
+
+        `morfs` is a list of modules or file names.
+
+        """
+        self.file_reporters = self.coverage._get_file_reporters(morfs)
+
+        if self.config.include:
+            patterns = prep_patterns(self.config.include)
+            matcher = FnmatchMatcher(patterns)
+            filtered = []
+            for fr in self.file_reporters:
+                if matcher.match(fr.filename):
+                    filtered.append(fr)
+            self.file_reporters = filtered
+
+        if self.config.omit:
+            patterns = prep_patterns(self.config.omit)
+            matcher = FnmatchMatcher(patterns)
+            filtered = []
+            for fr in self.file_reporters:
+                if not matcher.match(fr.filename):
+                    filtered.append(fr)
+            self.file_reporters = filtered
+
+        self.file_reporters.sort()
+
+    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.
+
+        """
+        self.find_file_reporters(morfs)
+
+        if not self.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 self.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() and not self.config.ignore_errors:
+                    raise