Mercurial > hg
annotate tests/filterpyflakes.py @ 25881:9de443515f1d stable
help: scripting help topic
There are a lot of non-human consumers of Mercurial. And the challenges
and considerations for machines consuming Mercurial is significantly
different from what humans face.
I think there are enough special considerations around how machines
consume Mercurial that a dedicated help topic is warranted. I concede
the audience for this topic is probably small compared to the general
audience. However, lots of normal Mercurial users do things like create
one-off shell scripts for common workflows that I think this is useful
enough to be in the install (as opposed to, say, a wiki page - which
most users will likely never find).
This text is by no means perfect. But you have to start somewhere. I
think I did cover the important parts, though.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 18 Jul 2015 17:10:28 -0700 |
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1 #!/usr/bin/env python |
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2 |
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3 # Filter output by pyflakes to control which warnings we check |
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4 |
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5 import sys, re, os |
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6 |
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7 def makekey(typeandline): |
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8 """ |
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9 for sorting lines by: msgtype, path/to/file, lineno, message |
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10 |
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11 typeandline is a sequence of a message type and the entire message line |
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12 the message line format is path/to/file:line: message |
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13 |
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14 >>> makekey((3, 'example.py:36: any message')) |
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15 (3, 'example.py', 36, ' any message') |
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16 >>> makekey((7, 'path/to/file.py:68: dummy message')) |
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17 (7, 'path/to/file.py', 68, ' dummy message') |
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18 >>> makekey((2, 'fn:88: m')) > makekey((2, 'fn:9: m')) |
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19 True |
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20 """ |
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21 |
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22 msgtype, line = typeandline |
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23 fname, line, message = line.split(":", 2) |
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24 # line as int for ordering 9 before 88 |
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25 return msgtype, fname, int(line), message |
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26 |
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27 |
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28 lines = [] |
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29 for line in sys.stdin: |
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30 # We whitelist tests (see more messages in pyflakes.messages) |
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31 pats = [ |
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32 (r"imported but unused", None), |
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33 (r"local variable '.*' is assigned to but never used", None), |
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34 (r"unable to detect undefined names", None), |
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35 (r"undefined name '.*'", |
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36 r"undefined name '(WindowsError|memoryview)'") |
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37 ] |
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38 |
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39 for msgtype, (pat, excl) in enumerate(pats): |
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40 if re.search(pat, line) and (not excl or not re.search(excl, line)): |
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41 break # pattern matches |
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42 else: |
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43 continue # no pattern matched, next line |
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44 fn = line.split(':', 1)[0] |
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45 f = open(os.path.join(os.path.dirname(os.path.dirname(__file__)), fn)) |
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46 data = f.read() |
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47 f.close() |
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48 if 'no-' 'check-code' in data: |
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49 continue |
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50 lines.append((msgtype, line)) |
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51 |
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52 for msgtype, line in sorted(lines, key=makekey): |
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53 sys.stdout.write(line) |
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54 print |
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55 |
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56 # self test of "undefined name" detection for other than 'memoryview' |
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57 if False: |
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58 print undefinedname |