Don't resolve templates where it isn't required

easybuild/framework/easyblock.py

@@ -1194,7 +1194,8 @@ def make_module_extra_extensions(self):
         lines = [self.module_extra_extensions]
 
         # set environment variable that specifies list of extensions
-        exts_list = ','.join(['%s-%s' % (ext[0], ext[1]) for ext in self.cfg['exts_list']])
+        # We need only name and version, so don't resolve templates
+        exts_list = ','.join(['-'.join(ext[:2]) for ext in self.cfg.get_ref('exts_list')])
         env_var_name = convert_name(self.name, upper=True)
         lines.append(self.module_generator.set_environment('EBEXTSLIST%s' % env_var_name, exts_list))
 
@@ -1207,7 +1208,7 @@ def make_module_footer(self):
         footer = [self.module_generator.comment("Built with EasyBuild version %s" % VERBOSE_VERSION)]
 
         # add extra stuff for extensions (if any)
-        if self.cfg['exts_list']:
+        if self.cfg.get_ref('exts_list'):
             footer.append(self.make_module_extra_extensions())
 
         # include modules footer if one is specified
@@ -1791,7 +1792,7 @@ def fetch_step(self, skip_checksums=False):
                 trace_msg(msg)
 
         # fetch extensions
-        if self.cfg['exts_list']:
+        if self.cfg.get_ref('exts_list'):
             self.exts = self.fetch_extension_sources(skip_checksums=skip_checksums)
 
         # create parent dirs in install and modules path already
@@ -2063,7 +2064,7 @@ def extensions_step(self, fetch=False):
         - find source for extensions, in 'extensions' (and 'packages' for legacy reasons)
         - run extra_extensions
         """
-        if len(self.cfg['exts_list']) == 0:
+        if not self.cfg.get_ref('exts_list'):
             self.log.debug("No extensions in exts_list")
             return
 

easybuild/framework/extension.py

@@ -127,14 +127,14 @@ def __init__(self, mself, ext, extra_params=None):
         # make sure they are merged into self.cfg so they can be queried;
         # unknown easyconfig parameters are ignored since self.options may include keys only there for extensions;
         # this allows to specify custom easyconfig parameters on a per-extension basis
-        for key in self.options:
+        for key, value in self.options.items():
             if key in self.cfg:
-                self.cfg[key] = resolve_template(self.options[key], self.cfg.template_values)
+                self.cfg[key] = value
                 self.log.debug("Customising known easyconfig parameter '%s' for extension %s/%s: %s",
-                               key, name, version, self.cfg[key])
+                               key, name, version, value)
             else:
                 self.log.debug("Skipping unknown custom easyconfig parameter '%s' for extension %s/%s: %s",
-                               key, name, version, self.options[key])
+                               key, name, version, value)
 
         self.sanity_check_fail_msgs = []
 

easybuild/tools/module_generator.py

@@ -524,7 +524,8 @@ def _generate_extension_list(self):
         """
         Generate a string with a comma-separated list of extensions.
         """
-        exts_list = self.app.cfg['exts_list']
+        # We need only name and version, so don't resolve templates
+        exts_list = self.app.cfg.get_ref('exts_list')
         extensions = ', '.join(sorted(['-'.join(ext[:2]) for ext in exts_list], key=str.lower))
 
         return extensions

test/framework/tweak.py

@@ -471,8 +471,7 @@ def test_map_easyconfig_to_target_tc_hierarchy(self):
                                                              update_build_specs={'version': new_version},
                                                              update_dep_versions=False)
         tweaked_ec = process_easyconfig(tweaked_spec)[0]
-        tweaked_dict = tweaked_ec['ec'].asdict()
-        extensions = tweaked_dict['exts_list']
+        extensions = tweaked_ec['ec']['exts_list']
         # check one extension with the same name exists and that the version has been updated
         hit_extension = 0
         for extension in extensions: