146 lines
5.2 KiB
Python
146 lines
5.2 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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# Helper regex for parse_sum_line.
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sum_matcher = re.compile('^(.?(PASS|FAIL)): (.*)$')
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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):
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global sum_matcher
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line = line.rstrip()
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m = re.match(sum_matcher, line)
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if m:
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result = m.group(1)
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test_name = m.group(3)
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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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out_dict[test_name] = result
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def _write_sum_file(self, sum_dict, subdir, rev_or_branch, filename,
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header = None):
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global gdb_web_base
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if not rev_or_branch:
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bdir = os.path.join (gdb_web_base, subdir)
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else:
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bdir = os.path.join (gdb_web_base, subdir, rev_or_branch)
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if not os.path.isdir (bdir):
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os.makedirs (bdir, 0755)
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fname = os.path.join (bdir, filename)
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keys = sum_dict.keys ()
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keys.sort ()
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mode = 'w'
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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[k] + ': ' + k + '\n')
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def write_sum_file(self, sum_dict, builder, branch):
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self._write_sum_file (sum_dict, builder, None, 'gdb.sum')
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def write_baseline(self, sum_dict, builder, branch, rev):
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self._write_sum_file(sum_dict, builder, None, 'baseline',
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header = "### THIS BASELINE WAS LAST UPDATED BY COMMIT %s ###\n\n" % rev)
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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, subdir, rev_or_branch, filename):
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global gdb_web_base
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if not rev_or_branch:
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fname = os.path.join (gdb_web_base, subdir, filename)
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else:
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fname = os.path.join (gdb_web_base, subdir, rev_or_branch, filename)
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if os.path.exists (fname):
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result = {}
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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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else:
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result = None
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return result
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def read_sum_file (self, builder, branch):
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return self._read_sum_file (builder, None, 'gdb.sum')
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def read_baseline(self, builder, branch):
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return self._read_sum_file (builder, None, 'baseline')
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def read_xfail (self, builder, branch):
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return self._read_sum_file (builder, os.path.join ('xfails', branch),
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'xfail')
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def read_old_sum_file (self, builder, branch):
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return self._read_sum_file (builder, None, '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):
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cur_file = StringIO (text)
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cur_results = {}
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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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return cur_results
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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, baseline):
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our_keys = results.keys ()
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our_keys.sort ()
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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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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[key] == 'PASS':
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if key not in baseline or baseline[key] != 'PASS':
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baseline[key] = 'PASS'
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# A regression is just a transition to FAIL.
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if results[key] != 'FAIL':
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continue
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if key not in baseline:
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result = result + 'new FAIL: ' + key + '\n'
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elif baseline[key] != 'FAIL':
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result = result + baseline[key] + ' -> FAIL: ' + key + '\n'
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return result
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