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fix --try-software-version using non-greedy matching + lookahead assertion, add test for tweak_one #2166

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merged 2 commits into from Mar 14, 2017
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fix --try-software-version using non-greedy matching + lookahead assertion, add test for tweak_one #2166

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bf91a0f
fix --try-software-version using non-greedy matching + lookahead asse…
boegel Mar 14, 2017
159a0f7
fix lookahead assertion to correctly capture list values at end of ea…
boegel Mar 14, 2017
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4 changes: 3 additions & 1 deletion easybuild/framework/easyconfig/tweak.py
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Expand Up @@ -179,7 +179,9 @@ def __repr__(self):
for (key, val) in tweaks.items():

if isinstance(val, list):
regexp = re.compile(r"^(?P<key>\s*%s)\s*=\s*(?P<val>\[(.|\n)*\])\s*$" % key, re.M)
# use non-greedy matching for list value using '*?' to avoid including other parameters in match,
# and a lookahead assertion (?=...) so next line is either another parameter definition or a blank line
regexp = re.compile(r"^(?P<key>\s*%s)\s*=\s*(?P<val>\[(.|\n)*?\])\s*$(?=(\n^\w+\s*=.*|\s*)$)" % key, re.M)
res = regexp.search(ectxt)
if res:
fval = [x for x in val if x != ''] # filter out empty strings
Expand Down
24 changes: 23 additions & 1 deletion test/framework/tweak.py
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Expand Up @@ -32,7 +32,8 @@
from test.framework.utilities import EnhancedTestCase, TestLoaderFiltered
from unittest import TextTestRunner

from easybuild.framework.easyconfig.tweak import find_matching_easyconfigs, obtain_ec_for, pick_version
from easybuild.framework.easyconfig.parser import EasyConfigParser
from easybuild.framework.easyconfig.tweak import find_matching_easyconfigs, obtain_ec_for, pick_version, tweak_one


class TweakTest(EnhancedTestCase):
Expand Down Expand Up @@ -109,6 +110,27 @@ def test_obtain_ec_for(self):
self.assertTrue(generated)
self.assertEqual(os.path.basename(ec_file), 'GCC-5.4.3.eb')

def test_tweak_one_version(self):
"""Test tweak_one function"""
test_easyconfigs_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'easyconfigs', 'test_ecs')
toy_ec = os.path.join(test_easyconfigs_path, 't', 'toy', 'toy-0.0.eb')

# test tweaking of software version (--try-software-version)
tweaked_toy_ec = os.path.join(self.test_prefix, 'toy-tweaked.eb')
tweak_one(toy_ec, tweaked_toy_ec, {'version': '1.2.3'})

toy_ec_parsed = EasyConfigParser(toy_ec).get_config_dict()
tweaked_toy_ec_parsed = EasyConfigParser(tweaked_toy_ec).get_config_dict()

# checksums should be reset to empty list, only version should be changed, nothing else
self.assertEqual(tweaked_toy_ec_parsed['checksums'], [])
self.assertEqual(tweaked_toy_ec_parsed['version'], '1.2.3')
for key in [k for k in toy_ec_parsed.keys() if k not in ['checksums', 'version']]:
val = toy_ec_parsed[key]
self.assertTrue(key in tweaked_toy_ec_parsed, "Parameter '%s' not defined in tweaked easyconfig file" % key)
tweaked_val = tweaked_toy_ec_parsed.get(key)
self.assertEqual(val, tweaked_val, "Different value for %s parameter: %s vs %s" % (key, val, tweaked_val))


def suite():
""" return all the tests in this file """
Expand Down