style: Add pre-commit ruff and meta hooks, format

.pre-commit-config.yaml

@@ -1,6 +1,10 @@
 # See https://pre-commit.com for more information
 ---
 repos:
+    - repo: meta
+      hooks:
+          - id: check-hooks-apply
+          - id: check-useless-excludes
     - repo: https://github.com/pre-commit/pre-commit-hooks
       rev: v4.6.0
       hooks:
@@ -20,3 +24,8 @@ repos:
       rev: v3.17.0
       hooks:
           - id: pyupgrade
+    - repo: https://github.com/astral-sh/ruff-pre-commit
+      rev: v0.6.3
+      hooks:
+          - id: ruff
+          - id: ruff-format

normfn

@@ -57,8 +57,7 @@ def main(argv, syserr_handler):
         "--verbose",
         action="count",
         default=0,
-        help="Add debugging output. "
-        "Using this twice makes it doubly verbose.",
+        help="Add debugging output. " "Using this twice makes it doubly verbose.",
     )
 
     _ = parser.add_argument(
@@ -201,9 +200,7 @@ def main(argv, syserr_handler):
         "This is the default.",
     )
 
-    parser.set_defaults(
-        time_option="earliest", undo_log_file=get_default_log_file()
-    )
+    parser.set_defaults(time_option="earliest", undo_log_file=get_default_log_file())
 
     class FilenamesAction(argparse.Action):
         # pylint: disable=too-few-public-methods
@@ -376,11 +373,7 @@ def datetime_prefix(args, non_extension: str, filename: str):
                     if matchobj.group("prefix") != ""
                     else ""
                 )
-                + (
-                    matchobj.group("suffix")
-                    if matchobj.group("suffix") != ""
-                    else ""
-                )
+                + (matchobj.group("suffix") if matchobj.group("suffix") != "" else "")
             )
 
         logger.debug("replacement() returned: " + replaceValue)
@@ -407,7 +400,9 @@ def datetime_prefix(args, non_extension: str, filename: str):
     DATE_TIME_SEPARATOR = r"([-_T\s]|\sat\s|,\s)"
 
     REGEX = (
-        r"^(?P<prefix>.*?)[-_]?" + r"(" +
+        r"^(?P<prefix>.*?)[-_]?"
+        + r"("
+        +
         # Y-M-D style
         r"(?P<year1>"
         + YEAR
@@ -473,13 +468,10 @@ def datetime_prefix(args, non_extension: str, filename: str):
 
         if args.add_time:
             newname = (
-                timetouse.strftime("%Y-%m-%dT%H-%M-%S")
-                + newname_with_dash_if_needed
+                timetouse.strftime("%Y-%m-%dT%H-%M-%S") + newname_with_dash_if_needed
             )
         else:
-            newname = (
-                timetouse.strftime("%Y-%m-%d") + newname_with_dash_if_needed
-            )
+            newname = timetouse.strftime("%Y-%m-%d") + newname_with_dash_if_needed
 
     return newname
 
@@ -493,9 +485,7 @@ def process_filename(filename: str, args):
     if not args.all:
         (exclude, why) = should_exclude(filename, basename)
         if exclude:
-            logger.info(
-                f"Skipping {filename.strip()} as it matches pattern {why}"
-            )
+            logger.info(f"Skipping {filename.strip()} as it matches pattern {why}")
             return filename
 
     (non_extension, extension) = os.path.splitext(basename)
@@ -506,9 +496,7 @@ def process_filename(filename: str, args):
 
     original_filename = filename
     filename = os.path.join(os.path.dirname(original_filename), newname)
-    logger.debug(
-        f"Potential new filename for {original_filename} is {filename}"
-    )
+    logger.debug(f"Potential new filename for {original_filename} is {filename}")
 
     if filename == original_filename:
         logger.debug("New filename would be identical, skipping.")
@@ -586,7 +574,7 @@ def validate_move(args, original_filename: str, filename: str) -> None:
         )
 
 
-def rlinput(prompt: str, prefill: str=""):
+def rlinput(prompt: str, prefill: str = ""):
     if os.name == "nt":
         return input(prompt)
     else:
@@ -629,9 +617,7 @@ def shiftfile(args, source: str, target: str):
 def check_undo_log_file_header(args):
     if not os.path.exists(args.undo_log_file):
         with open(args.undo_log_file, "w") as log_file:
-            wrapper = textwrap.TextWrapper(
-                initial_indent="# ", subsequent_indent="# "
-            )
+            wrapper = textwrap.TextWrapper(initial_indent="# ", subsequent_indent="# ")
             log_file.write("#!/bin/sh\n")
             log_file.write(
                 wrapper.fill(
@@ -700,9 +686,7 @@ def readchar():
 
 
 def insensitiveize(string: str) -> str:
-    return "".join(
-        map(lambda char: ("[" + char.lower() + char.upper() + "]"), string)
-    )
+    return "".join(map(lambda char: ("[" + char.lower() + char.upper() + "]"), string))
 
 
 class FatalException(Exception):

tests/BaseTestClasses.py

@@ -16,33 +16,48 @@
 
 
 class NormalizeFilenameTestCase(unittest.TestCase):
-    COMMAND = os.path.normpath(os.path.join(os.getcwd(), 'normfn'))
+    COMMAND = os.path.normpath(os.path.join(os.getcwd(), "normfn"))
 
     def setUp(self):
         self.workingDir = tempfile.mkdtemp()
 
     def getDatePrefix(self, postfixDash=True):
-        if (postfixDash is True):
+        if postfixDash is True:
             return datetime.now().strftime("%Y-%m-%d-")
         else:
             return datetime.now().strftime("%Y-%m-%d")
 
     def directoryFileCount(self, directory):
-        return len([item for item in os.listdir(directory) if os.path.isfile(os.path.join(directory, item))])
+        return len(
+            [
+                item
+                for item in os.listdir(directory)
+                if os.path.isfile(os.path.join(directory, item))
+            ]
+        )
 
     def directoryDirCount(self, directory):
-        return len([item for item in os.listdir(directory) if os.path.isdir(os.path.join(directory, item))])
+        return len(
+            [
+                item
+                for item in os.listdir(directory)
+                if os.path.isdir(os.path.join(directory, item))
+            ]
+        )
 
     def getOriginalScriptPath(self):
         module_path = inspect.getfile(inspect.currentframe())
-        module_path = os.path.join(os.path.dirname(os.path.dirname(module_path)), 'normfn')
+        module_path = os.path.join(
+            os.path.dirname(os.path.dirname(module_path)), "normfn"
+        )
 
         return module_path
 
     def invokeDirectly(self, inputFiles, extraParams=[]):
         import importlib.machinery
+
         module_path = self.getOriginalScriptPath()
-        loader = importlib.machinery.SourceFileLoader('normfn', module_path)
+        loader = importlib.machinery.SourceFileLoader("normfn", module_path)
         spec = spec_from_loader(os.path.basename(module_path), loader)
         normalize_filename = module_from_spec(spec)
         spec.loader.exec_module(normalize_filename)
@@ -51,11 +66,11 @@ def invokeDirectly(self, inputFiles, extraParams=[]):
 
         options.extend(inputFiles)
         options.extend(extraParams)
-        options.extend(['--no-undo-log-file'])
+        options.extend(["--no-undo-log-file"])
 
         stream = io.StringIO()
         handler = logging.StreamHandler(stream)
-        log = logging.getLogger('normfn')
+        log = logging.getLogger("normfn")
         log.propagate = False
         log.setLevel(logging.DEBUG)
         log.addHandler(handler)
@@ -70,21 +85,29 @@ def invokeDirectly(self, inputFiles, extraParams=[]):
 
         return error
 
-    def invokeAsSubprocess(self, inputFiles, extraParams=[], feedInput=None, cwd=None, expectOutput=False, useUndoFile=False):
+    def invokeAsSubprocess(
+        self,
+        inputFiles,
+        extraParams=[],
+        feedInput=None,
+        cwd=None,
+        expectOutput=False,
+        useUndoFile=False,
+    ):
         if cwd is None:
             cwd = self.workingDir
 
         with tempfile.NamedTemporaryFile(delete=False) as undo_log_file:
             undo_log_file.close()
 
             if os.name == "nt":
-                options = ['python', NormalizeFilenameTestCase.COMMAND]
+                options = ["python", NormalizeFilenameTestCase.COMMAND]
             else:
                 options = [NormalizeFilenameTestCase.COMMAND]
 
             options.extend(inputFiles)
             options.extend(extraParams)
-            options.extend(['--undo-log-file=' + undo_log_file.name])
+            options.extend(["--undo-log-file=" + undo_log_file.name])
 
             if feedInput:
                 p = Popen(options, stdin=PIPE, stdout=PIPE, stderr=PIPE, cwd=cwd)
@@ -122,13 +145,19 @@ def executeUndoCommands(self, commands):
         return maxReturnCode
 
     @contextmanager
-    def invokeAsPexpect(self, inputFiles, extraParams=[], expectedExitStatus=None, expectedOutputRegex=None):
+    def invokeAsPexpect(
+        self,
+        inputFiles,
+        extraParams=[],
+        expectedExitStatus=None,
+        expectedOutputRegex=None,
+    ):
         options = [NormalizeFilenameTestCase.COMMAND]
         options.extend(inputFiles)
         options.extend(extraParams)
-        options.extend(['--no-undo-log-file'])
+        options.extend(["--no-undo-log-file"])
 
-        command = ' '.join(options)
+        command = " ".join(options)
 
         stream = io.BytesIO()
 
@@ -144,18 +173,20 @@ def invokeAsPexpect(self, inputFiles, extraParams=[], expectedExitStatus=None, e
             self.assertEqual(expectedExitStatus, child.exitstatus)
 
         if expectedOutputRegex is not None:
-            self.assertRegex(str(child.logfile_read.getvalue(), 'utf-8'), expectedOutputRegex)
+            self.assertRegex(
+                str(child.logfile_read.getvalue(), "utf-8"), expectedOutputRegex
+            )
 
     def touch(self, fname):
         os.makedirs(os.path.dirname(fname), exist_ok=True)
-        open(fname, 'w').close()
+        open(fname, "w").close()
 
     def remove_dir_write_permissions(self, fname):
         os.chmod(fname, S_IRUSR | S_IXUSR)
 
     def writeFile(self, fname, contents):
         os.makedirs(os.path.dirname(fname), exist_ok=True)
-        with open(fname, 'w') as filename:
+        with open(fname, "w") as filename:
             filename.write(contents)
 
     def readFile(self, fname):

tests/Direct/test_Direct_Arguments.py

@@ -8,11 +8,11 @@ def setUp(self):
         super().setUp()
 
     def test_targetfile_exists_with_force(self):
-        filename = os.path.join(self.workingDir, 'blah.txt')
+        filename = os.path.join(self.workingDir, "blah.txt")
         self.writeFile(filename, "original")
-        filename2 = os.path.join(self.workingDir, self.getDatePrefix() + 'blah.txt')
+        filename2 = os.path.join(self.workingDir, self.getDatePrefix() + "blah.txt")
         self.writeFile(filename2, "new")
-        self.invokeDirectly([filename], extraParams=['--force'])
+        self.invokeDirectly([filename], extraParams=["--force"])
         self.assertFalse(os.path.exists(filename))
         self.assertTrue(os.path.exists(filename2))
         self.assertEqual(self.readFile(filename2), "original")