Add resolve_template function to easyconfig instances

easybuild/framework/easyconfig/easyconfig.py

@@ -1755,6 +1755,10 @@ def _generate_template_values(self, ignore=None):
  if self.template_values[key] is None:
  del self.template_values[key]
 
+ def resolve_template(self, value):
+ """Resolve all templates in the given value using this easyconfig"""
+ return resolve_template(value, self.template_values)
+
  @handle_deprecated_or_replaced_easyconfig_parameters
  def __contains__(self, key):
  """Check whether easyconfig parameter is defined"""
@@ -1770,9 +1774,7 @@ def __getitem__(self, key):
  raise EasyBuildError("Use of unknown easyconfig parameter '%s' when getting parameter value", key)
 
  if self.enable_templating:
- if self.template_values is None or len(self.template_values) == 0:
- self.generate_template_values()
- value = resolve_template(value, self.template_values)
+ value = self.resolve_template(value)
 
  return value
 
@@ -1848,9 +1850,7 @@ def asdict(self):
  for key, tup in self._config.items():
  value = tup[0]
  if self.enable_templating:
- if not self.template_values:
- self.generate_template_values()
- value = resolve_template(value, self.template_values)
+ value = self.resolve_template(value)
  res[key] = value
  return res
 

test/framework/easyconfig.py

@@ -1260,6 +1260,29 @@ def test_templating_constants(self):
  ec = EasyConfig(test_ec)
  self.assertEqual(ec['sanity_check_commands'], ['mpiexec -np 1 -- toy'])
 
+ def test_ec_method_resolve_template(self):
+ """Test the `resolve_template` method of easyconfig instances."""
+ # don't use any escaping insanity here, since it is templated itself
+ self.contents = textwrap.dedent("""
+ easyblock = "ConfigureMake"
+ name = "PI"
+ version = "3.14"
+ homepage = "http://example.com"
+ description = "test easyconfig %(name)s version %(version_major)s"
+ toolchain = SYSTEM
+ """)
+ self.prep()
+ ec = EasyConfig(self.eb_file, validate=False)
+
+ # We can resolve anything with values from the EC
+ self.assertEqual(ec.resolve_template('%(namelower)s %(version_major)s begins with %(nameletterlower)s'),
+ 'pi 3 begins with p')
+
+ # `resolve_template` does basically the same resolving any value on acccess
+ description = ec.get('description', resolve=False)
+ self.assertIn('%', description, 'Description needs a template for the next test')
+ self.assertEqual(ec.resolve_template(description), ec['description'])
+
  def test_templating_cuda_toolchain(self):
  """Test templates via toolchain component, like setting %(cudaver)s with fosscuda toolchain."""