From f851fdcafe2fd86be5a098b4f3936c4bfd97188b Mon Sep 17 00:00:00 2001
From: Keith Edmunds <kae@tiger-computing.co.uk>
Date: Mon, 22 Aug 2022 16:08:24 +0100
Subject: [PATCH] First draft of rename_singles.py

---
 app/rename_singles.py | 54 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100755 app/rename_singles.py

diff --git a/app/rename_singles.py b/app/rename_singles.py
new file mode 100755
index 0000000..58f116a
--- /dev/null
+++ b/app/rename_singles.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+#
+# Script to manage renaming existing files in given directory and
+# propagating that change to database. Typical usage: renaming files
+# from 'title.mp3' to title - artist.mp3'
+#
+# Actions:
+#
+# - record all filenames and inode numbers
+# - external: rename the files
+# - update records with new filenames for each inode number
+# - update external database with new paths
+
+import os
+import sqlite3
+
+PHASE = 2
+
+# Check file of same name exists in parent directory
+source_dir = '/home/kae/tmp/Singles'   # os.getcwd()
+db = "/home/kae/tmp/singles.sqlite"
+
+
+def main():
+    with sqlite3.connect(db) as connection:
+        cursor = connection.cursor()
+        if PHASE == 1:
+            cursor.execute(
+                "CREATE TABLE IF NOT EXISTS mp3s "
+                "(inode INTEGER, oldname TEXT, newname TEXT)"
+            )
+
+            for fname in os.listdir(source_dir):
+                fullpath = os.path.join(source_dir, fname)
+                inode = os.stat(fullpath).st_ino
+                sql = f'INSERT INTO mp3s VALUES ({inode}, "{fname}", "")'
+                cursor.execute(sql)
+
+        if PHASE == 2:
+            for fname in os.listdir(source_dir):
+                fullpath = os.path.join(source_dir, fname)
+                inode = os.stat(fullpath).st_ino
+                sql = (
+                    f'UPDATE mp3s SET newname = "{fname}" WHERE inode={inode}'
+                )
+                try:
+                    cursor.execute(sql)
+                except sqlite3.OperationalError:
+                    print(f"Error with {inode} -> {fname}")
+
+        cursor.close()
+
+
+main()