From: John Mandereau <john.mandereau@gmail.com>
Date: Mon, 14 Apr 2008 14:23:13 +0000 (+0200)
Subject: Tune lilypond-book performance
X-Git-Tag: release/2.11.45-1~72^2~6
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=621ebfe9152cace82b9d038718c43eed2aea0f90;p=lilypond.git

Tune lilypond-book performance

split_output_files(): use list type when looping through hash subdirs,
but still return a set.
---

diff --git a/scripts/lilypond-book.py b/scripts/lilypond-book.py
index b29cb9758d..c1b0de5bd7 100644
--- a/scripts/lilypond-book.py
+++ b/scripts/lilypond-book.py
@@ -1637,13 +1637,13 @@ def split_output_files(directory):
 
     Return value is a set of strings.
     """
-    files = set ()
+    files = []
     for subdir in glob.glob (os.path.join (directory, '[a-f0-9][a-f0-9]')):
         base_subdir = os.path.split (subdir)[1]
         sub_files = [os.path.join (base_subdir, name)
                      for name in os.listdir (subdir)]
-        files = files.union (sub_files)
-    return files
+        files += sub_files
+    return set (files)
 
 def do_process_cmd (chunks, input_name, options):
     snippets = [c for c in chunks if isinstance (c, LilypondSnippet)]