cmd/newliner: if input starts getting too long, print it out.

This prevents output that doesn't have any newlines from being buffered
forever (eg. the output of 'bup split -vv').

Reported by Karl Kiniger.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>

diff --git a/cmd/newliner-cmd.py b/cmd/newliner-cmd.py
index 6c4e60f336e7c0ce76f47f8a0334a5daec48b517..6b505b4a992b97d913cb1679ba11b99a0a4f9065 100755 (executable)
--- a/cmd/newliner-cmd.py
+++ b/cmd/newliner-cmd.py
@@ -17,6 +17,10 @@ all = ''
 while 1:
     l = r.split(all, 1)
     if len(l) <= 1:
+        if len(all) >= 160:
+            sys.stdout.write('%s\n' % all[:78])
+            sys.stdout.flush()
+            all = all[78:]
         try:
             b = os.read(sys.stdin.fileno(), 4096)
         except KeyboardInterrupt: