diff options
Diffstat (limited to 'coverage')
| -rw-r--r-- | coverage/control.py | 10 | ||||
| -rw-r--r-- | coverage/data.py | 15 | ||||
| -rw-r--r-- | coverage/debug.py | 15 |
3 files changed, 32 insertions, 8 deletions
diff --git a/coverage/control.py b/coverage/control.py index fde6f63b..050b6fbd 100644 --- a/coverage/control.py +++ b/coverage/control.py @@ -201,9 +201,15 @@ class Coverage(object): if self._inited: return - # Create and configure the debugging controller. + # Create and configure the debugging controller. COVERAGE_DEBUG_FILE + # is an environment variable, the name of a file to append debug logs + # to. if self._debug_file is None: - self._debug_file = sys.stderr + debug_file_name = os.environ.get("COVERAGE_DEBUG_FILE") + if debug_file_name: + self._debug_file = open(debug_file_name, "a") + else: + self._debug_file = sys.stderr self.debug = DebugControl(self.config.debug, self._debug_file) # Load plugins diff --git a/coverage/data.py b/coverage/data.py index eed9406a..c09816df 100644 --- a/coverage/data.py +++ b/coverage/data.py @@ -319,6 +319,10 @@ class CoverageData(object): data. """ + if self._debug and self._debug.should('dataop'): + self._debug.write("Setting lines: %d files, %d lines total" % ( + len(line_data), sum(len(lines) for lines in line_data.values()) + )) if self._has_arcs(): raise CoverageException("Can't add lines to existing arc data") @@ -336,6 +340,10 @@ class CoverageData(object): data. """ + if self._debug and self._debug.should('dataop'): + self._debug.write("Setting arcs: %d files, %d arcs total" % ( + len(arc_data), sum(len(arcs) for arcs in arc_data.values()) + )) if self._has_lines(): raise CoverageException("Can't add arcs to existing line data") @@ -350,6 +358,9 @@ class CoverageData(object): `file_tracers` is { filename: plugin_name, ... } """ + if self._debug and self._debug.should('dataop'): + self._debug.write("Setting file tracers: %d files" % (len(file_tracers),)) + existing_files = self._arcs or self._lines for filename, plugin_name in iitems(file_tracers): if filename not in existing_files: @@ -375,6 +386,8 @@ class CoverageData(object): but repeated keywords overwrite each other. """ + if self._debug and self._debug.should('dataop'): + self._debug.write("Adding run info: %r" % (kwargs,)) if not self._runs: self._runs = [{}] self._runs[0].update(kwargs) @@ -382,6 +395,8 @@ class CoverageData(object): def touch_file(self, filename): """Ensure that `filename` appears in the data, empty if needed.""" + if self._debug and self._debug.should('dataop'): + self._debug.write("Touching %r" % (filename,)) (self._arcs or self._lines).setdefault(filename, []) self._validate() diff --git a/coverage/debug.py b/coverage/debug.py index 8d36c1cd..8ae087d7 100644 --- a/coverage/debug.py +++ b/coverage/debug.py @@ -7,6 +7,7 @@ import inspect import json import os import re +import sys # When debugging, it can be helpful to force some options, especially when @@ -27,9 +28,7 @@ class DebugControl(object): self.output = output def __repr__(self): - return "<DebugControl options=%r output=%r>" % ( - self.options, self.output - ) + return "<DebugControl options=%r output=%r>" % (self.options, self.output) def should(self, option): """Decide whether to output debug information in category `option`.""" @@ -40,6 +39,8 @@ class DebugControl(object): if self.should('pid'): msg = "pid %5d: %s" % (os.getpid(), msg) self.output.write(msg+"\n") + if self.should('callers'): + dump_stack_frames(self.output) self.output.flush() def write_formatted_info(self, header, info): @@ -94,9 +95,11 @@ def short_stack(): # pragma: debugging return "\n".join("%30s : %s @%d" % (t[3], t[1], t[2]) for t in stack) -def dump_stack_frames(): # pragma: debugging - """Print a summary of the stack to stdout.""" - print(short_stack()) +def dump_stack_frames(out=None): # pragma: debugging + """Print a summary of the stack to stdout, or some place else.""" + out = out or sys.stdout + out.write(short_stack()) + out.write("\n") def pretty_data(data): |