1 files changed, 78 insertions, 0 deletions
diff --git a/Tools/Scripts/webkitpy/common/system/crashlogs.py b/Tools/Scripts/webkitpy/common/system/crashlogs.py
new file mode 100644
index 000000000..06b0d12d7
--- /dev/null
+++ b/Tools/Scripts/webkitpy/common/system/crashlogs.py
@@ -0,0 +1,78 @@
+# Copyright (c) 2011, Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from __future__ import with_statement
+
+import os
+import re
+import sys
+
+
+class CrashLogs(object):
+    def __init__(self, filesystem):
+        self._filesystem = filesystem
+
+    def find_newest_log(self, process_name, pid=None):
+        if sys.platform == "darwin":
+            return self._find_newest_log_darwin(process_name, pid)
+
+    def _log_directory_darwin(self):
+        log_directory = self._filesystem.expanduser("~")
+        log_directory = self._filesystem.join(log_directory, "Library", "Logs")
+        if self._filesystem.exists(self._filesystem.join(log_directory, "DiagnosticReports")):
+            log_directory = self._filesystem.join(log_directory, "DiagnosticReports")
+        else:
+            log_directory = self._filesystem.join(log_directory, "CrashReporter")
+        return log_directory
+
+    def _find_newest_log_darwin(self, process_name, pid):
+        def is_crash_log(fs, dirpath, basename):
+            return basename.startswith(process_name + "_") and basename.endswith(".crash")
+
+        log_directory = self._log_directory_darwin()
+        logs = self._filesystem.files_under(log_directory, file_filter=is_crash_log)
+        if not logs:
+            return None
+        first_line_regex = re.compile(r'^Process:\s+(?P<process_name>.*) \[(?P<pid>\d+)\]$')
+        for path in reversed(sorted(logs)):
+            try:
+                with self._filesystem.open_text_file_for_reading(path) as f:
+                    first_line = f.readline()
+
+                    match = first_line_regex.match(first_line)
+                    if not match:
+                        continue
+                    if match.group('process_name') != process_name:
+                        continue
+                    if pid is not None and int(match.group('pid')) != pid:
+                        continue
+
+                    f.seek(0, os.SEEK_SET)
+                    return f.read()
+            except IOError:
+                continue