[PATCH 2 of 4] Add a progress bar for events in which the maxval is unknown

[Stefano Tortarolo]

# HG changeset patch
# User Stefano Tortarolo <stefano at inventati.org>
# Date 1209560014 -7200
# Node ID f79d4a6ce30fb62c9ea05478767cafef56575407
# Parent  a360beb5ab203fc71988535bdb9b29a6fa0a1e24
Add a progress bar for events in which the maxval is unknown

diff -r a360beb5ab20 -r f79d4a6ce30f mercurial/progress.py
--- a/mercurial/progress.py	Mon Jul 23 09:26:59 2007 +0200
+++ b/mercurial/progress.py	Wed Apr 30 14:53:34 2008 +0200
@@ -76,3 +76,28 @@
             self._clean = True
             self._fd.write('\n')
 
+class progressnoval(noprogress):
+
+    """Simple progress indicator with no maxval"""
+
+    def __init__(self, msg, fd):
+        self._msg = msg
+        self._fd = fd
+        self._clean = True
+        self.update()
+
+    def update(self):
+        if self._clean:
+                self._clean = False
+                self._fd.write('%s' % self._msg)
+        else:
+            self._fd.write('.')
+
+    def finish(self):
+        self._fd.write('done!')
+        self.interrupt()
+
+    def interrupt(self):
+        if not self._clean:
+            self._clean = True
+            self._fd.write('\n')
diff -r a360beb5ab20 -r f79d4a6ce30f mercurial/ui.py
--- a/mercurial/ui.py	Mon Jul 23 09:26:59 2007 +0200
+++ b/mercurial/ui.py	Wed Apr 30 14:53:34 2008 +0200
@@ -484,11 +484,13 @@
             traceback.print_exc()
         return self.traceback
 
-    def progress(self, msg, maxval):
+    def progress(self, msg, maxval=None):
         """Return progress indicator object"""
         fd = sys.stderr
-        if self.quiet or maxval < 1 or not fd.isatty():
+        if self.quiet or not fd.isatty():
             self._progress = progress.noprogress(msg, maxval, fd)
+        elif not maxval or maxval < 1:
+            self._progress = progress.progressnoval(msg, fd)
         else:
             self._progress = progress.progress(msg, maxval, fd)
         return self._progress