My personal style

main.py

@@ -0,0 +1,67 @@
+
+import re
+import subprocess
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('project')
+
+RULES_MAIN= [
+	r"\b(System\.out\.println)\b",
+    r"^\s*var\b\s*\w*\s*=\s*[^n ][^e][^w]",
+    r"^\s*var\b\s*\w*\s*=\s*\r",
+]
+
+DUMB_WORDS = [
+        'derp', 'herp', 'fjerp', 'todo', 'attempts to',
+        'actual',
+
+        # Misspelled words
+        'concatinate', # Concatenate
+]
+
+def re_select(options):
+    return r'(?:' + r'|'.join(options) + r')'
+
+def re_delimit(rule):
+    return r'\b' + rule + r'\b'
+
+def re_case_insensitive_sub(m):
+    m = m.group(0)
+    l = m.lower()
+    u = m.upper()
+    if l == u == m:
+        return m
+    else:
+        return '['+l+u+']'
+
+def re_case_insensitive(rule):
+    return re.sub(r'\w', re_case_insensitive_sub, rule)
+
+RE_DOC_COULD_BE_LINK = r'^(\s*(?:\/\*\*|\*).*)(\b[A-Z][a-z]\w*[A-Z]\w*)([ ,.])'
+
+RULES_BOTH = [
+	r"\.size\(\)\s*[=!<]=\s*0" ,
+	r"\b(hasSize\(0\))\b" ,
+	r"\b(\.size\(\)\)\.isEqualTo\()\b" ,
+	r"\.get\([^)(]+\)\)\.isEqualTo",
+	r"\bCollectors\.toMap\b",
+	r"\bCollectors\.toList\b",
+    re_delimit(re_select([re_case_insensitive(w) for w in DUMB_WORDS])),
+    #RE_DOC_COULD_BE_LINK,
+]
+
+def construct_cmd(rules, target):
+    return ['ag', '--java', '(' + re_select(rules) + ')', target]
+
+if __name__ == '__main__':
+    args = parser.parse_args()
+
+    target = args.project
+
+    result1 = subprocess.run(construct_cmd(RULES_MAIN, target + '/main'))
+    result2 = subprocess.run(construct_cmd(RULES_BOTH, target))
+
+    if result1.returncode == 0 or result2.returncode == 0:
+        exit(1)
+