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a2ec560647
When converting test/py from " to ', I missed a few places (or added a few inconsistencies later). Fix these. Note that only quotes in code are converted; double-quotes in comments and HTML are left as-is, since English and HTML use " not '. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
519 lines
15 KiB
Python
519 lines
15 KiB
Python
# Copyright (c) 2015 Stephen Warren
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# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
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#
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# SPDX-License-Identifier: GPL-2.0
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# Generate an HTML-formatted log file containing multiple streams of data,
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# each represented in a well-delineated/-structured fashion.
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import cgi
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import os.path
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import shutil
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import subprocess
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mod_dir = os.path.dirname(os.path.abspath(__file__))
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class LogfileStream(object):
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"""A file-like object used to write a single logical stream of data into
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a multiplexed log file. Objects of this type should be created by factory
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functions in the Logfile class rather than directly."""
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def __init__(self, logfile, name, chained_file):
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"""Initialize a new object.
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Args:
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logfile: The Logfile object to log to.
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name: The name of this log stream.
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chained_file: The file-like object to which all stream data should be
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logged to in addition to logfile. Can be None.
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Returns:
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Nothing.
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"""
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self.logfile = logfile
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self.name = name
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self.chained_file = chained_file
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def close(self):
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"""Dummy function so that this class is "file-like".
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Args:
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None.
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Returns:
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Nothing.
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"""
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pass
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def write(self, data, implicit=False):
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"""Write data to the log stream.
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Args:
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data: The data to write tot he file.
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implicit: Boolean indicating whether data actually appeared in the
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stream, or was implicitly generated. A valid use-case is to
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repeat a shell prompt at the start of each separate log
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section, which makes the log sections more readable in
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isolation.
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Returns:
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Nothing.
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"""
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self.logfile.write(self, data, implicit)
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if self.chained_file:
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self.chained_file.write(data)
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def flush(self):
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"""Flush the log stream, to ensure correct log interleaving.
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Args:
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None.
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Returns:
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Nothing.
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"""
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self.logfile.flush()
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if self.chained_file:
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self.chained_file.flush()
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class RunAndLog(object):
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"""A utility object used to execute sub-processes and log their output to
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a multiplexed log file. Objects of this type should be created by factory
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functions in the Logfile class rather than directly."""
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def __init__(self, logfile, name, chained_file):
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"""Initialize a new object.
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Args:
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logfile: The Logfile object to log to.
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name: The name of this log stream or sub-process.
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chained_file: The file-like object to which all stream data should
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be logged to in addition to logfile. Can be None.
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Returns:
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Nothing.
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"""
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self.logfile = logfile
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self.name = name
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self.chained_file = chained_file
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def close(self):
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"""Clean up any resources managed by this object."""
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pass
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def run(self, cmd, cwd=None, ignore_errors=False):
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"""Run a command as a sub-process, and log the results.
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Args:
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cmd: The command to execute.
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cwd: The directory to run the command in. Can be None to use the
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current directory.
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ignore_errors: Indicate whether to ignore errors. If True, the
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function will simply return if the command cannot be executed
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or exits with an error code, otherwise an exception will be
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raised if such problems occur.
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Returns:
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Nothing.
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"""
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msg = '+' + ' '.join(cmd) + '\n'
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if self.chained_file:
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self.chained_file.write(msg)
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self.logfile.write(self, msg)
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try:
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p = subprocess.Popen(cmd, cwd=cwd,
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stdin=None, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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(stdout, stderr) = p.communicate()
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output = ''
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if stdout:
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if stderr:
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output += 'stdout:\n'
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output += stdout
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if stderr:
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if stdout:
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output += 'stderr:\n'
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output += stderr
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exit_status = p.returncode
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exception = None
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except subprocess.CalledProcessError as cpe:
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output = cpe.output
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exit_status = cpe.returncode
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exception = cpe
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except Exception as e:
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output = ''
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exit_status = 0
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exception = e
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if output and not output.endswith('\n'):
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output += '\n'
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if exit_status and not exception and not ignore_errors:
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exception = Exception('Exit code: ' + str(exit_status))
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if exception:
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output += str(exception) + '\n'
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self.logfile.write(self, output)
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if self.chained_file:
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self.chained_file.write(output)
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if exception:
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raise exception
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class SectionCtxMgr(object):
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"""A context manager for Python's "with" statement, which allows a certain
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portion of test code to be logged to a separate section of the log file.
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Objects of this type should be created by factory functions in the Logfile
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class rather than directly."""
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def __init__(self, log, marker):
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"""Initialize a new object.
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Args:
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log: The Logfile object to log to.
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marker: The name of the nested log section.
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Returns:
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Nothing.
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"""
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self.log = log
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self.marker = marker
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def __enter__(self):
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self.log.start_section(self.marker)
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def __exit__(self, extype, value, traceback):
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self.log.end_section(self.marker)
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class Logfile(object):
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"""Generates an HTML-formatted log file containing multiple streams of
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data, each represented in a well-delineated/-structured fashion."""
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def __init__(self, fn):
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"""Initialize a new object.
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Args:
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fn: The filename to write to.
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Returns:
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Nothing.
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"""
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self.f = open(fn, 'wt')
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self.last_stream = None
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self.blocks = []
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self.cur_evt = 1
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shutil.copy(mod_dir + '/multiplexed_log.css', os.path.dirname(fn))
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self.f.write('''\
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<html>
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<head>
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<link rel="stylesheet" type="text/css" href="multiplexed_log.css">
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</head>
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<body>
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<tt>
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''')
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def close(self):
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"""Close the log file.
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After calling this function, no more data may be written to the log.
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Args:
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None.
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Returns:
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Nothing.
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"""
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self.f.write('''\
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</tt>
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</body>
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</html>
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''')
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self.f.close()
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# The set of characters that should be represented as hexadecimal codes in
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# the log file.
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_nonprint = ('%' + ''.join(chr(c) for c in range(0, 32) if c not in (9, 10)) +
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''.join(chr(c) for c in range(127, 256)))
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def _escape(self, data):
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"""Render data format suitable for inclusion in an HTML document.
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This includes HTML-escaping certain characters, and translating
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control characters to a hexadecimal representation.
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Args:
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data: The raw string data to be escaped.
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Returns:
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An escaped version of the data.
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"""
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data = data.replace(chr(13), '')
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data = ''.join((c in self._nonprint) and ('%%%02x' % ord(c)) or
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c for c in data)
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data = cgi.escape(data)
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return data
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def _terminate_stream(self):
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"""Write HTML to the log file to terminate the current stream's data.
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Args:
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None.
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Returns:
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Nothing.
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"""
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self.cur_evt += 1
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if not self.last_stream:
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return
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self.f.write('</pre>\n')
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self.f.write('<div class="stream-trailer" id="' +
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self.last_stream.name + '">End stream: ' +
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self.last_stream.name + '</div>\n')
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self.f.write('</div>\n')
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self.last_stream = None
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def _note(self, note_type, msg):
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"""Write a note or one-off message to the log file.
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Args:
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note_type: The type of note. This must be a value supported by the
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accompanying multiplexed_log.css.
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msg: The note/message to log.
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Returns:
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Nothing.
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"""
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self._terminate_stream()
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self.f.write('<div class="' + note_type + '">\n<pre>')
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self.f.write(self._escape(msg))
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self.f.write('\n</pre></div>\n')
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def start_section(self, marker):
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"""Begin a new nested section in the log file.
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Args:
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marker: The name of the section that is starting.
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Returns:
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Nothing.
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"""
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self._terminate_stream()
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self.blocks.append(marker)
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blk_path = '/'.join(self.blocks)
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self.f.write('<div class="section" id="' + blk_path + '">\n')
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self.f.write('<div class="section-header" id="' + blk_path +
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'">Section: ' + blk_path + '</div>\n')
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def end_section(self, marker):
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"""Terminate the current nested section in the log file.
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This function validates proper nesting of start_section() and
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end_section() calls. If a mismatch is found, an exception is raised.
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Args:
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marker: The name of the section that is ending.
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Returns:
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Nothing.
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"""
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if (not self.blocks) or (marker != self.blocks[-1]):
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raise Exception('Block nesting mismatch: "%s" "%s"' %
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(marker, '/'.join(self.blocks)))
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self._terminate_stream()
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blk_path = '/'.join(self.blocks)
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self.f.write('<div class="section-trailer" id="section-trailer-' +
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blk_path + '">End section: ' + blk_path + '</div>\n')
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self.f.write('</div>\n')
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self.blocks.pop()
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def section(self, marker):
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"""Create a temporary section in the log file.
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This function creates a context manager for Python's "with" statement,
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which allows a certain portion of test code to be logged to a separate
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section of the log file.
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Usage:
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with log.section("somename"):
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some test code
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Args:
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marker: The name of the nested section.
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Returns:
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A context manager object.
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"""
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return SectionCtxMgr(self, marker)
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def error(self, msg):
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"""Write an error note to the log file.
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Args:
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msg: A message describing the error.
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Returns:
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Nothing.
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"""
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self._note("error", msg)
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def warning(self, msg):
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"""Write an warning note to the log file.
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Args:
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msg: A message describing the warning.
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Returns:
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Nothing.
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"""
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self._note("warning", msg)
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def info(self, msg):
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"""Write an informational note to the log file.
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Args:
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msg: An informational message.
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Returns:
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Nothing.
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"""
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self._note("info", msg)
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def action(self, msg):
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"""Write an action note to the log file.
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Args:
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msg: A message describing the action that is being logged.
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Returns:
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Nothing.
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"""
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self._note("action", msg)
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def status_pass(self, msg):
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"""Write a note to the log file describing test(s) which passed.
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Args:
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msg: A message describing passed test(s).
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Returns:
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Nothing.
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"""
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self._note("status-pass", msg)
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def status_skipped(self, msg):
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"""Write a note to the log file describing skipped test(s).
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Args:
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msg: A message describing passed test(s).
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Returns:
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Nothing.
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"""
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self._note("status-skipped", msg)
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def status_fail(self, msg):
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"""Write a note to the log file describing failed test(s).
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Args:
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msg: A message describing passed test(s).
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Returns:
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Nothing.
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"""
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self._note("status-fail", msg)
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def get_stream(self, name, chained_file=None):
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"""Create an object to log a single stream's data into the log file.
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This creates a "file-like" object that can be written to in order to
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write a single stream's data to the log file. The implementation will
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handle any required interleaving of data (from multiple streams) in
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the log, in a way that makes it obvious which stream each bit of data
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came from.
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Args:
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name: The name of the stream.
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chained_file: The file-like object to which all stream data should
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be logged to in addition to this log. Can be None.
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Returns:
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A file-like object.
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"""
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return LogfileStream(self, name, chained_file)
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def get_runner(self, name, chained_file=None):
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"""Create an object that executes processes and logs their output.
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Args:
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name: The name of this sub-process.
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chained_file: The file-like object to which all stream data should
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be logged to in addition to logfile. Can be None.
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Returns:
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A RunAndLog object.
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"""
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return RunAndLog(self, name, chained_file)
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def write(self, stream, data, implicit=False):
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"""Write stream data into the log file.
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This function should only be used by instances of LogfileStream or
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RunAndLog.
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Args:
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stream: The stream whose data is being logged.
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data: The data to log.
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implicit: Boolean indicating whether data actually appeared in the
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stream, or was implicitly generated. A valid use-case is to
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repeat a shell prompt at the start of each separate log
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section, which makes the log sections more readable in
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isolation.
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Returns:
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Nothing.
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"""
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if stream != self.last_stream:
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self._terminate_stream()
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self.f.write('<div class="stream" id="%s">\n' % stream.name)
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self.f.write('<div class="stream-header" id="' + stream.name +
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'">Stream: ' + stream.name + '</div>\n')
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self.f.write('<pre>')
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if implicit:
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self.f.write('<span class="implicit">')
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self.f.write(self._escape(data))
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if implicit:
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self.f.write('</span>')
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self.last_stream = stream
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def flush(self):
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"""Flush the log stream, to ensure correct log interleaving.
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Args:
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None.
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Returns:
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Nothing.
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"""
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self.f.flush()
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