make sure clear message is shown as to why extension sanity check fails

easybuild/framework/easyblock.py

@@ -147,6 +147,9 @@ def __init__(self, path, debug=False, robot_path=None, validate_ec=True):
         # iterate configure/build/options
         self.iter_opts = {}
 
+        # sanity check fail error messages to report (if any)
+        self.sanity_check_fail_msgs = []
+
         self.log.info("Init completed for application name %s version %s" % (self.name, self.version))
 
 
@@ -1437,8 +1440,6 @@ def sanity_check_step(self, custom_paths=None, custom_commands=None, extension=F
             self.log.error("Incorrect format for sanity_check_paths (should only have 'files' and 'dirs' keys, " \
                            "values should be lists (at least one non-empty)).")
 
-        self.sanity_check_fail_msgs = []
-
         # check if files exist
         for f in paths['files']:
             p = os.path.join(self.installdir, f)

easybuild/framework/extension.py

@@ -132,7 +132,6 @@ def sanity_check_step(self):
         if modname == False:
             # allow skipping of sanity check by setting module name to False
             return True
-
         else:
             template = {
                         'ext_name': modname,
@@ -146,15 +145,16 @@ def sanity_check_step(self):
                        }
             cmd = cmd % template
 
+            stdin = None
             if inp:
                 stdin = inp % template
-                # set log_ok to False so we can catch the error instead of run_cmd
-                (output, ec) = run_cmd(cmd, log_ok=False, simple=False, inp=stdin, regexp=False)
-            else:
-                (output, ec) = run_cmd(cmd, log_ok=False, simple=False, regexp=False)
+            # set log_ok to False so we can catch the error instead of run_cmd
+            (output, ec) = run_cmd(cmd, log_ok=False, simple=False, regexp=False)
 
             if ec:
-                self.log.warn("Extension: %s failed to install! (output: %s)" % (self.name, output))
+                msg = "%s failed to install, cmd '%s' (stdin: %s) output: %s" % (self.name, cmd, stdin, output)
+                self.log.warn("Extension: %s" % msg)
+                self.sanity_check_fail_msgs.append(msg)
                 return False
             else:
                 return True

easybuild/framework/extensioneasyblock.py

@@ -119,10 +119,11 @@ def sanity_check_step(self, exts_filter=None, custom_paths=None, custom_commands
 
         # pass or fail sanity check
         if not sanity_check_ok:
+            msg = "Sanity check for %s failed: %s" % (self.name, '; '.join(self.sanity_check_fail_msgs))
             if self.is_extension:
-                self.log.warning("Sanity check for %s failed!" % self.name)
+                self.log.warning(msg)
             else:
-                self.log.error("Sanity check for %s failed!" % self.name)
+                self.log.error(msg)
             return False
         else:
             self.log.info("Sanity check for %s successful!" % self.name)