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Thomas Leymonerie
slapos.buildout
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200fa79a
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200fa79a
authored
Jan 23, 2014
by
Peter Uittenbroek
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Add test for proving the extended sections indeed work with += and -= of options
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src/zc/buildout/buildout.txt
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200fa79a
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@@ -1134,6 +1134,90 @@ In this example, the debug, with_file1 and with_file2 sections act as
macros. In particular, the variable substitutions are performed
relative to the myfiles section.
Extending sections (macros) - Adding and removing options
----------------------------------------------------
We can also add and remove options in extended sections.
This is illustrated below; first we define a base configuration.
>>> write(sample_buildout, 'base.cfg',
... """
... [buildout]
... parts = part1 part2 part3
...
... [part1]
... recipe =
... option = a1
... a2
...
... [part2]
... <= part1
... option -= a1
... option += c3 c4
...
... [part3]
... <= part2
... option += d2
... c5 d1 d6
... option -= a2
... """)
To verify that the options are adjusted correctly, we'll set up an
extension that prints out the options.
>>> mkdir(sample_buildout, 'demo')
>>> write(sample_buildout, 'demo', 'demo.py',
... """
... import sys
... def ext(buildout):
... sys.stdout.write(str(
... [part['option'] for name, part in sorted(buildout.items())
... if name.startswith('part')])+'\\n')
... """)
>>> write(sample_buildout, 'demo', 'setup.py',
... """
... from setuptools import setup
...
... setup(
... name="demo",
... entry_points={'zc.buildout.extension': ['ext = demo:ext']},
... )
... """)
Set up a buildout configuration for this extension.
>>> write(sample_buildout, 'buildout.cfg',
... """
... [buildout]
... develop = demo
... parts =
... """)
>>> os.chdir(sample_buildout)
>>> print_(system(os.path.join(sample_buildout, 'bin', 'buildout')), end='') # doctest: +ELLIPSIS
Develop: '/sample-buildout/demo'
....
Verify option values.
>>> write(sample_buildout, 'buildout.cfg',
... """
... [buildout]
... develop = demo
... extensions = demo
... extends = base.cfg
... """)
>>> print_(system(os.path.join('bin', 'buildout')), end='')
['a1/na2', 'a2/nc3 c4', 'c3 c4/nd2/nc5 d1 d6']
Develop: '/sample-buildout/demo'
Cleanup.
>>> os.remove(os.path.join(sample_buildout, 'base.cfg'))
>>> rmdir(sample_buildout, 'demo')
Conditional sections
--------------------
...
...
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