removed some unnecessary file checks and fixed up test cases

osaca/frontend.py

@@ -6,6 +6,7 @@ from datetime import datetime as dt
 
 from ruamel import yaml
 
+from osaca import utils
 from osaca.semantics import INSTR_FLAGS, KernelDG, SemanticsAppender
 
 
@@ -19,28 +20,11 @@ class Frontend(object):
         self._arch = arch
         if arch:
             self._arch = arch.lower()
-            try:
-                with open(self._find_file(self._arch), 'r') as f:
-                    self._data = yaml.load(f, Loader=yaml.Loader)
-            except AssertionError:
-                raise ValueError(
-                    'Cannot find specified architecture. Make sure the machine file exists.'
-                )
+            with open(utils.find_file(self._arch+'.yml'), 'r') as f:
+                self._data = yaml.load(f, Loader=yaml.Loader)
         elif path_to_yaml:
-            try:
-                assert os.path.exists(path_to_yaml)
-                with open(path_to_yaml, 'r') as f:
-                    self._data = yaml.load(f, Loader=yaml.Loader)
-            except (AssertionError, FileNotFoundError):
-                raise ValueError(
-                    'Cannot find specified path to YAML file. Make sure the machine file exists.'
-                )
-
-    def _find_file(self, name):
-        data_dir = os.path.expanduser('~/.osaca/data')
-        name = os.path.join(data_dir, name + '.yml')
-        assert os.path.exists(name)
-        return name
+            with open(path_to_yaml, 'r') as f:
+                self._data = yaml.load(f, Loader=yaml.Loader)
 
     def _is_comment(self, instruction_form):
         return instruction_form['comment'] is not None and instruction_form['instruction'] is None

osaca/semantics/__init__.py

@@ -6,6 +6,6 @@ Only the classes below will be exported, so please add new semantic tools to __a
 from .hw_model import MachineModel
 from .kernel_dg import KernelDG
 from .marker_utils import reduce_to_section
-from .semanticsAppender import SemanticsAppender, INSTR_FLAGS
+from .semantics_appender import SemanticsAppender, INSTR_FLAGS
 
 __all__ = ['MachineModel', 'KernelDG', 'reduce_to_section', 'SemanticsAppender', 'INSTR_FLAGS']

osaca/semantics/hw_model.py

@@ -5,6 +5,7 @@ import re
 
 from ruamel import yaml
 
+from osaca import utils
 from osaca.parser import ParserX86ATT
 
 
@@ -18,28 +19,11 @@ class MachineModel(object):
         self._arch = arch
         if arch:
             self._arch = arch.lower()
-            try:
-                with open(self._find_file(self._arch), 'r') as f:
-                    self._data = yaml.load(f, Loader=yaml.Loader)
-            except AssertionError:
-                raise ValueError(
-                    'Cannot find specified architecture. Make sure the machine file exists.'
-                )
+            with open(utils.find_file(self._arch+'.yml'), 'r') as f:
+                self._data = yaml.load(f, Loader=yaml.Loader)
         elif path_to_yaml:
-            try:
-                assert os.path.exists(self._path)
-                with open(self._path, 'r') as f:
-                    self._data = yaml.load(f, Loader=yaml.Loader)
-            except (AssertionError, FileNotFoundError):
-                raise ValueError(
-                    'Cannot find specified path to YAML file. Make sure the machine file exists.'
-                )
-
-    def _find_file(self, name):
-        data_dir = os.path.expanduser('~/.osaca/data')
-        name = os.path.join(data_dir, name + '.yml')
-        assert os.path.exists(name)
-        return name
+            with open(self._path, 'r') as f:
+                self._data = yaml.load(f, Loader=yaml.Loader)
 
     def __getitem__(self, key):
         """Return configuration entry."""

osaca/semantics/semantics_appender.py

@@ -4,6 +4,7 @@ import os
 import warnings
 from functools import reduce
 
+from osaca import utils
 from osaca.parser import AttrDict, ParserAArch64v81, ParserX86ATT
 from osaca.semantics import MachineModel
 
@@ -26,19 +27,13 @@ class SemanticsAppender(object):
     def __init__(self, machine_model: MachineModel, path_to_yaml=None):
         self._machine_model = machine_model
         self._isa = machine_model.get_ISA().lower()
-        path = self._find_file(self._isa)
+        path = utils.find_file('isa/'+self._isa+'.yml')
         self._isa_model = MachineModel(path_to_yaml=path)
         if self._isa == 'x86':
             self._parser = ParserX86ATT()
         elif self._isa == 'aarch64':
             self._parser = ParserAArch64v81()
 
-    def _find_file(self, isa):
-        data_dir = os.path.expanduser('~/.osaca/data/isa')
-        name = os.path.join(data_dir, isa + '.yml')
-        assert os.path.exists(name)
-        return name
-
     # SUMMARY FUNCTION
     def add_semantics(self, kernel):
         for instruction_form in kernel:

osaca/utils.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+import os.path
+
+
+def find_file(name):
+    """Check for existence of name in user or package data folders and return path."""
+    search_paths = [os.path.expanduser('~/.osaca/data'),
+                    os.path.join(os.path.dirname(__file__), 'data')]
+    for dir in search_paths:
+        path = os.path.join(dir, name)
+        if os.path.exists(path):
+            return path
+    raise FileNotFoundError("Could not find {!r} in {!r}.".format(name, search_paths))

tests/test_frontend.py

@@ -10,7 +10,7 @@ from osaca.frontend import Frontend
 from osaca.parser import ParserAArch64v81, ParserX86ATT
 from osaca.semantics.hw_model import MachineModel
 from osaca.semantics.kernel_dg import KernelDG
-from osaca.semantics.semanticsAppender import SemanticsAppender
+from osaca.semantics.semantics_appender import SemanticsAppender
 
 
 class TestFrontend(unittest.TestCase):
@@ -60,9 +60,9 @@ class TestFrontend(unittest.TestCase):
             Frontend()
         with self.assertRaises(ValueError):
             Frontend(arch='csx', path_to_yaml=os.path.join(self.MODULE_DATA_DIR, 'csx.yml'))
-        with self.assertRaises(ValueError):
+        with self.assertRaises(FileNotFoundError):
             Frontend(path_to_yaml=os.path.join(self.MODULE_DATA_DIR, 'THE_MACHINE.yml'))
-        with self.assertRaises(ValueError):
+        with self.assertRaises(FileNotFoundError):
             Frontend(arch='THE_MACHINE')
         Frontend(arch='zen1')
 

tests/test_semantics.py

@@ -304,9 +304,9 @@ class TestSemanticTools(unittest.TestCase):
             MachineModel()
         with self.assertRaises(ValueError):
             MachineModel(arch='CSX', path_to_yaml=os.path.join(self.MODULE_DATA_DIR, 'csx.yml'))
-        with self.assertRaises(ValueError):
+        with self.assertRaises(FileNotFoundError):
             MachineModel(arch='THE_MACHINE')
-        with self.assertRaises(ValueError):
+        with self.assertRaises(FileNotFoundError):
             MachineModel(path_to_yaml=os.path.join(self.MODULE_DATA_DIR, 'THE_MACHINE.yml'))
 
     def test_MachineModel_getter(self):