| 39 | self.placeholder = str(len(str(backup_count))) |
| 40 | |
| 41 | def doRollover(self): |
| 42 | if self.stream: |
| 43 | self.stream.close() |
| 44 | self.stream = None |
| 45 | if self.backup_count > 0: |
| 46 | for i in range(self.backup_count - 1, 0, -1): |
| 47 | sfn = ("%0" + self.placeholder + "d.") % i # '%2d.'%i -> 02 |
| 48 | sfn = sfn.join(self.baseFilename.split(".")) |
| 49 | # sfn = "%d_%s" % (i, self.baseFilename) |
| 50 | # dfn = "%d_%s" % (i + 1, self.baseFilename) |
| 51 | dfn = ("%0" + self.placeholder + "d.") % (i + 1) |
| 52 | dfn = dfn.join(self.baseFilename.split(".")) |
| 53 | if os.path.exists(sfn): |
| 54 | # print "%s -> %s" % (sfn, dfn) |
| 55 | if os.path.exists(dfn): |
| 56 | os.remove(dfn) |
| 57 | os.rename(sfn, dfn) |
| 58 | dfn = (("%0" + self.placeholder + "d.") % 1).join( |
| 59 | self.baseFilename.split(".") |
| 60 | ) |
| 61 | if os.path.exists(dfn): |
| 62 | os.remove(dfn) |
| 63 | # Issue 18940: A file may not have been created if delay is True. |
| 64 | if os.path.exists(self.baseFilename): |
| 65 | os.rename(self.baseFilename, dfn) |
| 66 | if not self.delay: |
| 67 | self.stream = self._open() |
| 68 | |
| 69 | def shouldRollover(self, record): |
| 70 | if self.stream is None: # delay was set... |