Add nolint

README.md

@@ -1,3 +1,7 @@
 # nocode-linter
 
-Linter for No Code: https://github.com/kelseyhightower/nocode
+Linter for No Code: https://github.com/kelseyhightower/nocode
+
+## Usage
+
+    python3 nolint.py <file>

nolint.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+import argparse
+
+parser = argparse.ArgumentParser(description="Linter for No Code.")
+parser.add_argument("file", help="name of No Code file to lint")
+args = parser.parse_args()
+
+try:
+    with open(args.file) as f:
+        content = f.read()
+    if content:
+        if content.strip():
+            if args.file.endswith(".no"):
+                print("Not very good.")
+                print(" * File has non-whitespace content")
+                print("At least there's something good, though:")
+                print(" * File extension is `.no`")
+                print("Suggestions:")
+                print(" * Delete the file")
+            else:
+                print("Not good. At all.")
+                print(" * File has non-whitespace content")
+                print(" * File extension is not `.no`")
+                print("Suggestions:")
+                print(" * Delete the file")
+                print(" * Use `.no` file extension")
+        else:
+            if args.file.endswith(".no"):
+                print("Not terrible...")
+                print(" * All content is whitespace")
+                print(" * File extension is `.no`")
+                print("There's room for improvement, however:")
+                print(" * Delete the file")
+            else:
+                print("Okay...")
+                print(" * All content is whitespace")
+                print("There's room for improvement, however:")
+                print(" * Delete the file")
+                print(" * Use `.no` file extension")
+    else:
+        if args.file.endswith(".no"):
+            print("Good job!")
+            print(" * File is empty")
+            print(" * File extension is `.no`")
+            print("There's room for improvement, however:")
+            print(" * Delete the file")
+        else:
+            print("Pretty good!")
+            print(" * File is empty")
+            print("There's room for improvement, however:")
+            print(" * Delete the file")
+            print(" * Use `.no` file extension")
+except FileNotFoundError:
+    if args.file.endswith(".no"):
+        print("Excellent!")
+        print(" * File extension is `.no`")
+        print(" * File does not exist")
+    else:
+        print("Great!")
+        print(" * File does not exist")
+        print("There's room for improvement, however:")
+        print(" * Use `.no` file extension")