ENH: Add template renaming script

Author: effigies

tools/rename_template.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+import sys
+import os
+import re
+import fnmatch
+import functools
+from pathlib import Path
+
+PACKAGE_ROOT = Path(__file__).absolute().parent.parent
+
+@functools.lru_cache()
+def load_gitignore(repo):
+    gitignore = repo / '.gitignore'
+    ignore = [fnmatch.translate(".git/"), fnmatch.translate(Path(__file__).name)]
+    if gitignore.exists():
+        ignore.extend(
+            fnmatch.translate(line.strip())
+            for line in gitignore.read_text().splitlines()
+            if line.strip() and not line[0] == '#'
+        )
+    return re.compile('|'.join(ignore))
+
+cmd, new_name, *_ = sys.argv
+
+for root, dirs, files in os.walk(PACKAGE_ROOT):
+    ignore = load_gitignore(PACKAGE_ROOT).search
+    for d in [d for d in dirs if ignore(f"{d}/")]:
+        dirs.remove(d)
+    for f in [f for f in files if ignore(f)]:
+        files.remove(f)
+
+    root = Path(root)
+    for src in list(dirs):
+        if 'TODO' in src:
+            dst = src.replace("TODO", new_name)
+            print(f"Renaming: {root / src} ->  {root / dst}")
+            os.rename(root / src, root / dst)
+            dirs.remove(src)
+            dirs.append(dst)
+    for fname in files:
+        f = root / fname
+        text = Path.read_text(root / fname)
+        if 'TODO' in text:
+            print(f"Rewriting: {root / fname}")
+            Path.write_text(root / fname, text.replace("TODO", new_name))