From fb881e5d6e0de019b19bc2aa007c7783c73d9ce5 Mon Sep 17 00:00:00 2001
From: Oleg Broytman <phd@phdru.name>
Date: Sun, 20 Dec 2015 23:24:38 +0300
Subject: [PATCH] Import genres from LRE files

---
 m_librarian/glst.py  | 58 ++++++++++++++++++++++++++++++++++++++++++++
 scripts/ml-initdb.py |  6 +++++
 2 files changed, 64 insertions(+)
 create mode 100755 m_librarian/glst.py

diff --git a/m_librarian/glst.py b/m_librarian/glst.py
new file mode 100755
index 0000000..257d321
--- /dev/null
+++ b/m_librarian/glst.py
@@ -0,0 +1,58 @@
+#! /usr/bin/env python
+
+import codecs
+import os
+from sqlobject import sqlhub, SQLObjectNotFound
+from .db import Genre
+
+
+def parse_glst_file(glst_filename):
+    glst_file = codecs.open(glst_filename, 'r', 'utf-8')
+    genre_list = []
+    try:
+        for line in glst_file:
+            line = line.strip()
+            if not line:
+                continue
+            if line[0] == '#':
+                continue
+            parts = line.split(None, 1)
+            try:
+                name, title = parts[1].split(';', 1)
+            except (IndexError, ValueError):
+                continue
+            genre_list.append((name, title))
+    finally:
+        glst_file.close()
+    return genre_list
+
+
+def import_glst_file(glst_filename):
+    old = new = 0
+    for name, title in parse_glst_file(glst_filename):
+        try:
+            Genre.byName(name)
+        except SQLObjectNotFound:
+            Genre(name=name, title=title, count=0)
+            new += 1
+        else:
+            old += 1
+    return old, new
+
+
+def _import_data():
+    ml_dir = os.path.dirname(__file__)
+    old_fb2, new_fb2 = import_glst_file(
+        os.path.join(ml_dir, 'data', 'genres_fb2.glst'))
+    old_nonfb2, new_nonfb2 = import_glst_file(
+        os.path.join(ml_dir, 'data', 'genres_nonfb2.glst'))
+    return old_fb2 + old_nonfb2, new_fb2 + new_nonfb2
+
+
+def import_data():
+    return sqlhub.doInTransaction(_import_data)
+
+
+if __name__ == '__main__':
+    ml_dir = os.path.dirname(__file__)
+    print parse_glst_file(os.path.join(ml_dir, 'data', 'genres_fb2.glst'))
diff --git a/scripts/ml-initdb.py b/scripts/ml-initdb.py
index 79bbe43..ca696bd 100755
--- a/scripts/ml-initdb.py
+++ b/scripts/ml-initdb.py
@@ -1,6 +1,12 @@
 #! /usr/bin/env python
 
 from m_librarian.db import init_db
+from m_librarian.glst import import_data
 
 if __name__ == '__main__':
     init_db()
+    old, new = import_data()
+    if old:
+        print "Imported %d genres (ignored %d existing)" % (new, old)
+    else:
+        print "Imported %d genres" % new
-- 
2.39.5