In order to allow progress indication when the total runtime is unknown,
as well as if the total runtime is so long that the progress indicator
stays at the same percentage for more than a second, an update of the
indicator is forced every second.
On Unix a time signal is received, which forces the update.
On Windows we don't have signals. For this reason, a thread is spawned
that forces the update every second.
This allows for progress to be displayed only if the progress has not
reached a specified percentage treshold within a given delay in seconds.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
If the progress bar ends up in a box, better provide a title for it too.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Instead of having this code duplicated in multiple places, let's have
a common interface for progress display. If someday someone wishes to
display a cheezy progress bar instead then only one file will have to
be changed.
Note: I left merge-recursive.c out since it has a strange notion of
progress as it apparently increase the expected total number as it goes.
Someone with more intimate knowledge of what that is supposed to mean
might look at converting it to the common progress interface.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
