[PATCH 0 of 3] Progress indicator

[Thomas Arendsen Hein]

Hi!

The following patches add a progress indicator for 'hg update' and
'hg merge'. Support for other commands is planned, most notably
network operations.

By default the output looks like this:
(only one 'updating' line is shown, I wanted to show how it grows)

updating 0%..10%
updating 0%..10%..20%..30%..40%
updating 0%..10%..20%..30%..40%..50%..60%..70%..80%..90%
updating 0%..10%..20%..30%..40%..50%..60%..70%..80%..90%..100%
21618 files updated, 0 files merged, 0 files removed, 0 files unresolved

The third patch adds an extension to provide an enhanced progress
indicator by using http://cheeseshop.python.org/pypi/progressbar/2.2
which looks like this: I

updating  13%|#########                                                             | ETA:  00:00:18
updating  41%|############################                                          | ETA:  00:00:14
updating  93%|#################################################################     | ETA:  00:00:01
updating 100%|######################################################################| Time: 00:00:27
21618 files updated, 0 files merged, 0 files removed, 0 files unresolved


With both, the simple and the enhanced version, messages that are
displayed while the progress indicator is active will work.

With the simple version, they are displayed on a new line and the
progress indicator will be printed again in full the next time its
display would change.

With the enhanced version the progress bar is removed for the
message and displayed again after it.

Comments?

Thomas

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