Mercurial > hg
annotate tests/test-extensions-wrapfunction.py @ 44216:281b6690e646
packaging: add support for PyOxidizer
I've successfully built Mercurial on the development tip of
PyOxidizer on Linux and Windows. It mostly "just works" on Linux.
Windows is a bit more finicky.
In-memory resource files are probably not all working correctly
due to bugs in PyOxidizer's naming of modules. PyOxidizer now
now supports installing files next to the produced binary. (We
do this for templates in the added file.) So a workaround
should be available.
Also, since the last time I submitted support for PyOxidizer,
PyOxidizer gained the ability to auto-generate Rust projects
to build executables. So we don't need to worry about vendoring
any Rust code to initially support PyOxidizer. However, at some
point we will likely want to write our own command line driver
that embeds a Python interpreter via PyOxidizer so we can run
Rust code outside the confines of a Python interpreter. But that
will be a follow-up.
I would also like to add packaging.py CLI commands to build
PyOxidizer distributions. This can come later, if ever.
PyOxidizer's new "targets" feature makes it really easy to define
packaging tasks in its Starlark configuration file. While not
much is implemented yet, eventually we should be able to produce
MSIs, etc using a `pyoxidizer build` one-liner. We'll get there...
Differential Revision: https://phab.mercurial-scm.org/D7450
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sun, 26 Jan 2020 16:23:57 -0800 |
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children | 6000f5b25c9b |
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1 from __future__ import absolute_import, print_function |
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2 |
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3 from mercurial import extensions |
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4 |
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5 |
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6 def genwrapper(x): |
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7 def f(orig, *args, **kwds): |
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8 return [x] + orig(*args, **kwds) |
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9 |
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10 f.x = x |
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11 return f |
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12 |
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13 |
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14 def getid(wrapper): |
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15 return getattr(wrapper, 'x', '-') |
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16 |
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17 |
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18 wrappers = [genwrapper(i) for i in range(5)] |
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19 |
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20 |
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21 class dummyclass(object): |
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22 def getstack(self): |
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23 return ['orig'] |
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24 |
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25 |
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26 dummy = dummyclass() |
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27 |
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28 |
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29 def batchwrap(wrappers): |
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30 for w in wrappers: |
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31 extensions.wrapfunction(dummy, 'getstack', w) |
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32 print('wrap %d: %s' % (getid(w), dummy.getstack())) |
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33 |
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34 |
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35 def batchunwrap(wrappers): |
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36 for w in wrappers: |
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37 result = None |
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38 try: |
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39 result = extensions.unwrapfunction(dummy, 'getstack', w) |
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40 msg = str(dummy.getstack()) |
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41 except (ValueError, IndexError) as e: |
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42 msg = e.__class__.__name__ |
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43 print('unwrap %s: %s: %s' % (getid(w), getid(result), msg)) |
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44 |
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45 |
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46 batchwrap(wrappers + [wrappers[0]]) |
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47 batchunwrap( |
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48 [ |
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49 (wrappers[i] if i is not None and i >= 0 else None) |
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50 for i in [3, None, 0, 4, 0, 2, 1, None] |
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51 ] |
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52 ) |
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53 |
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54 wrap0 = extensions.wrappedfunction(dummy, 'getstack', wrappers[0]) |
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55 wrap1 = extensions.wrappedfunction(dummy, 'getstack', wrappers[1]) |
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56 |
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57 # Use them in a different order from how they were created to check that |
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58 # the wrapping happens in __enter__, not in __init__ |
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59 print('context manager', dummy.getstack()) |
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60 with wrap1: |
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61 print('context manager', dummy.getstack()) |
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62 with wrap0: |
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63 print('context manager', dummy.getstack()) |
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64 # Bad programmer forgets to unwrap the function, but the context |
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65 # managers still unwrap their wrappings. |
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66 extensions.wrapfunction(dummy, 'getstack', wrappers[2]) |
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67 print('context manager', dummy.getstack()) |
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68 print('context manager', dummy.getstack()) |
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69 print('context manager', dummy.getstack()) |
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70 |
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71 # Wrap callable object which has no __name__ |
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72 class callableobj(object): |
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73 def __call__(self): |
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74 return ['orig'] |
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75 |
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76 |
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77 dummy.cobj = callableobj() |
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78 extensions.wrapfunction(dummy, 'cobj', wrappers[0]) |
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79 print('wrap callable object', dummy.cobj()) |