Mercurial > hg
annotate tests/hghave @ 25732:b94df10cc3b5
hghave: allow adding customized features at runtime
Before this patch, there is no way to add customized features to
`hghave` without changing `hghave` and `hghave.py` themselves.
This decreases reusability of `run-tests.py` framework for third party
tools, because they may want to examine custom features at runtime
(e.g. existence of some external tools).
To allow adding customized features at runtime, this patch makes
`hghave` import `hghaveaddon` module, only when `hghaveaddon.py` file
can be found in directories below:
- `TESTDIR` for invocation via `run-tests.py`
- `.` for invocation via command line
The path to the directory where `hghaveaddon.py` should be placed is
added to `sys.path` only while importing `hghaveaddon`, because:
- `.` may not be added to `PYTHONPATH`
- adding additional path to `sys.path` may change behavior of
subsequent `import` for other features
`hghave` is terminated with exit code '2' at failure of `import
hghaveaddon`, because exit code '2' terminates `run-tests.py`
immediately.
This is a one of preparations for issue4677.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Fri, 03 Jul 2015 06:56:03 +0900 |
parents | 05b3238ba901 |
children | 8107c308ff22 |
rev | line source |
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1 #!/usr/bin/env python |
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2 """Test the running system for features availability. Exit with zero |
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3 if all features are there, non-zero otherwise. If a feature name is |
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4 prefixed with "no-", the absence of feature is tested. |
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5 """ |
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6 import optparse |
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7 import os, sys |
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8 import hghave |
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9 |
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10 checks = hghave.checks |
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11 |
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12 def list_features(): |
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13 for name, feature in sorted(checks.iteritems()): |
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14 desc = feature[1] |
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15 print name + ':', desc |
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16 |
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17 def test_features(): |
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18 failed = 0 |
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19 for name, feature in checks.iteritems(): |
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20 check, _ = feature |
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21 try: |
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22 check() |
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23 except Exception, e: |
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24 print "feature %s failed: %s" % (name, e) |
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25 failed += 1 |
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26 return failed |
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27 |
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28 parser = optparse.OptionParser("%prog [options] [features]") |
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29 parser.add_option("--test-features", action="store_true", |
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30 help="test available features") |
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31 parser.add_option("--list-features", action="store_true", |
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32 help="list available features") |
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33 parser.add_option("-q", "--quiet", action="store_true", |
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34 help="check features silently") |
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35 |
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36 def _loadaddon(quiet): |
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37 if 'TESTDIR' in os.environ: |
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38 # loading from '.' isn't needed, because `hghave` should be |
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39 # running at TESTTMP in this case |
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40 path = os.environ['TESTDIR'] |
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41 else: |
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42 path = '.' |
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43 |
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44 if not os.path.exists(os.path.join(path, 'hghaveaddon.py')): |
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45 return |
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46 |
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47 sys.path.insert(0, path) |
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48 try: |
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49 import hghaveaddon |
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50 except BaseException, inst: |
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51 if not quiet: |
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52 sys.stderr.write('failed to import hghaveaddon.py from %r: %s\n' |
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53 % (path, inst)) |
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54 sys.exit(2) |
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55 sys.path.pop(0) |
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56 |
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57 if __name__ == '__main__': |
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58 options, args = parser.parse_args() |
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59 _loadaddon(options.quiet) |
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60 if options.list_features: |
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61 list_features() |
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62 sys.exit(0) |
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63 |
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64 if options.test_features: |
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65 sys.exit(test_features()) |
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66 |
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67 quiet = options.quiet |
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68 |
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69 failures = 0 |
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70 |
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71 def error(msg): |
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72 global failures |
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73 if not quiet: |
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74 sys.stderr.write(msg + '\n') |
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75 failures += 1 |
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76 |
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77 for feature in args: |
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78 negate = feature.startswith('no-') |
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79 if negate: |
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80 feature = feature[3:] |
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81 |
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82 if feature not in checks: |
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83 error('skipped: unknown feature: ' + feature) |
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84 sys.exit(2) |
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85 |
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86 check, desc = checks[feature] |
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87 try: |
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88 available = check() |
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89 except Exception, e: |
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90 error('hghave check failed: ' + feature) |
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91 continue |
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92 |
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93 if not negate and not available: |
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94 error('skipped: missing feature: ' + desc) |
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95 elif negate and available: |
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96 error('skipped: system supports %s' % desc) |
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97 |
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98 if failures != 0: |
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99 sys.exit(1) |