218 lines
8.2 KiB
Python
218 lines
8.2 KiB
Python
# Functions for manipulating .sum summary files.
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import re
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import os.path
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from StringIO import StringIO
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# Necessary for ordered dictionaries. We use them when the order or
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# the tests matters to us.
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from collections import OrderedDict
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import lzma
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# Helper regex for parse_sum_line.
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sum_matcher = re.compile('^(.?(PASS|FAIL)): (.*)$')
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racy_file_matcher = re.compile ('^(gdb\..*)')
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# You must call set_web_base at startup to set this.
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gdb_web_base = None
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def set_web_base(arg):
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global gdb_web_base
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gdb_web_base = arg
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if not os.path.isdir(gdb_web_base):
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# If the parent doesn't exist, we're confused.
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# So, use mkdir and not makedirs.
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os.mkdir(gdb_web_base, 0755)
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def get_web_base ():
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global gdb_web_base
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return gdb_web_base
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class DejaResults(object):
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def __init__(self):
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object.__init__(self)
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# Parse a single line from a .sum file.
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# Uniquify the name, and put the result into OUT_DICT.
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# If the line does not appear to be about a test, ignore it.
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def parse_sum_line(self, out_dict, line, is_racy_file = False):
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global sum_matcher
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line = line.rstrip()
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if not is_racy_file:
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# Removing special XFAIL comment added by script.
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m = re.match(sum_matcher, line)
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else:
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m = re.match (racy_file_matcher, line)
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if m:
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if is_racy_file:
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# On racy.sum files, there is no result to parse.
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result = 'NONE'
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test_name = m.group (1)
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else:
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result = m.group (1)
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test_name = m.group (3)
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# Remove tail parentheses
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test_name = re.sub ('(\s+)?\(.*$', '', test_name)
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if result not in out_dict[1].keys ():
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out_dict[1][result] = set ()
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if test_name in out_dict:
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i = 2
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while True:
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nname = test_name + ' <<' + str(i) + '>>'
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if nname not in out_dict:
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break
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i = i + 1
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test_name = nname
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# Add the testname to the dictionary...
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out_dict[0][test_name] = result
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# and to the set.
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out_dict[1][result].add (test_name)
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def _write_sum_file(self, sum_dict, builder, rev, filename, header = None,
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istry = False, branch = "master", try_count = "0"):
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global gdb_web_base
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if istry:
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bdir = os.path.join (gdb_web_base, builder, 'try', rev[:2], rev, try_count)
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else:
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bdir = os.path.join (gdb_web_base, builder, rev[:2], rev)
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if not os.path.exists (bdir):
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old_umask = os.umask (0022)
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os.makedirs (bdir)
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os.umask (old_umask)
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fname = os.path.join (bdir, filename)
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keys = sum_dict[0].keys ()
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mode = 'w'
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old_umask = os.umask (0133)
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if header:
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with open (fname, 'w') as f:
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f.write (header)
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mode = 'a'
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with open (fname, mode) as f:
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for k in keys:
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f.write (sum_dict[0][k] + ': ' + k + '\n')
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os.umask (old_umask)
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def write_sum_file(self, sum_dict, builder, branch, rev, istry, try_count = 0):
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if istry:
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self.write_try_build_sum_file (self, sum_dict, builder, branch, rev,
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try_count = try_count)
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else:
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self._write_sum_file (sum_dict, builder, rev, 'gdb.sum', istry = False,
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branch = branch)
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def write_try_build_sum_file (self, sum_dict, builder, branch, rev, try_count):
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self._write_sum_file (sum_dict, builder, rev, 'trybuild_gdb.sum',
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header = "### THIS SUM FILE WAS GENERATED BY A TRY BUILD ###\n\n",
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istry = True,
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branch = branch,
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try_count = try_count)
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def write_baseline(self, sum_dict, builder, branch, rev, istry):
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if istry:
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return
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else:
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self._write_sum_file(sum_dict, builder, rev, 'baseline',
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header = "### THIS BASELINE WAS LAST UPDATED BY COMMIT %s ###\n\n" % rev,
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istry = False,
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branch = branch)
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# Read a .sum file.
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# The builder name is BUILDER.
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# The base file name is given in FILENAME. This should be a git
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# revision; to read the baseline file for a branch, use `read_baseline'.
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# Returns a dictionary holding the .sum contents, or None if the
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# file did not exist.
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def _read_sum_file(self, builder, branch, rev, filename,
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is_racy_file = False, is_xfail_file = False):
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global gdb_web_base
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if is_xfail_file:
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fname = os.path.join (gdb_web_base, builder, 'xfails', branch, filename)
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else:
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fname = os.path.join (gdb_web_base, builder, rev[:2], rev, filename)
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result = []
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# result[0] is the OrderedDict containing all the tests
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# and results.
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result.append (OrderedDict ())
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# result[1] is a dictionary containing sets of tests
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result.append (dict ())
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if os.path.exists (fname):
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with open (fname, 'r') as f:
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for line in f:
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self.parse_sum_line (result, line,
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is_racy_file = is_racy_file)
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elif os.path.exists (fname + '.xz'):
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fname += '.xz'
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f = lzma.LZMAFile (fname, 'r')
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for line in f:
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self.parse_sum_line (result, line,
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is_racy_file = is_racy_file)
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f.close ()
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else:
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return None
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return result
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def read_sum_file (self, builder, branch, rev):
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return self._read_sum_file (builder, branch, rev, 'gdb.sum')
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def read_baseline(self, builder, branch, rev):
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return self._read_sum_file (builder, branch, rev, 'baseline')
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def read_xfail (self, builder, branch):
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return self._read_sum_file (builder, branch, None, 'xfail', is_xfail_file = True)
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def read_old_sum_file (self, builder, branch, rev):
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return self._read_sum_file (builder, branch, rev, 'previous_gdb.sum')
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# Parse some text as a .sum file and return the resulting
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# dictionary.
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def read_sum_text (self, text, is_racy_file = False):
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cur_file = StringIO (text)
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cur_results = []
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cur_results.append (OrderedDict ())
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cur_results.append (dict ())
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for line in cur_file.readlines ():
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self.parse_sum_line (cur_results, line,
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is_racy_file = is_racy_file)
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return cur_results
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# Parse some text as the racy.sum file and return the resulting
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# dictionary.
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def read_racy_sum_text (self, text):
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return self.read_sum_text (text, is_racy_file = True)
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# Compute regressions between RESULTS and BASELINE on BUILDER.
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# BASELINE will be modified if any new PASSes are seen.
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# Returns a regression report, as a string.
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def compute_regressions (self, builder, branch, results, old_res):
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our_keys = results[0].keys ()
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result = ''
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xfails = self.read_xfail (builder, branch)
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if xfails is None:
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xfails = {}
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else:
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xfails = xfails[0]
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for key in our_keys:
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# An XFAIL entry means we have an unreliable test.
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if key in xfails:
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continue
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# A transition to PASS means we should update the baseline.
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if results[0][key] == 'PASS':
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if key not in old_res[0] or old_res[0][key] != 'PASS':
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old_res[0][key] = 'PASS'
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continue
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if results[0][key] == 'XFAIL' or results[0][key] == 'XPASS':
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# We don't report new XFAILs or XPASSes
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continue
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# We report both PASS -> FAIL and FAIL -> PASS, as well as
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# new FAIL and new PASS.
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if key not in old_res[0]:
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result += 'new ' + results[0][key] + ': ' + key + '\n'
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elif results[0][key] != old_res[0][key]:
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result += old_res[0][key] + ' -> ' + results[0][key] + ': ' + key + '\n'
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return result
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