workflow: add a default template for Merge Request
Introduce a first basic template to try the feature.
run-tests: prevent race-condition when picking a channel
Before this, multiple jobs could search the list at the same time and pick the
same free channel.
We now project this search/assignment with a simple lock.
run-tests: send the test result after freeing the channel
Sending the message about the test being "done" signals to the main thread that
a new test can be started. Before this changeset, we sent this signal before
freeing the channel, there is room for a race condition where a new test would
search for a channel before the old test freed the one it used.
This is an example of the failure it would produce:
https://foss.heptapod.net/mercurial/mercurial-devel/-/jobs/552404
run-tests: also send a message in the Keyboard interrupt case
The next patch will do something equivalent, so lets do the change in an
independant changeset first in case we need to bisect something in the future.
revlog: use appropriate format char for int ("i" instead of "I")
From https://docs.python.org/3.8/c-api/arg.html#numbers :
i (int) [int]
Convert a Python integer to a plain C int.
I (int) [unsigned int]
Convert a Python integer to a C unsigned int, without overflow checking.
revlog: use %d to format int instead of %lu (
issue6565)
The issue says gcc warns that the data types don't match. I couldn't reproduce
the warning locally for some reason, but this patch shouldn't break things.
Maybe %lu was simply a copy-paste error from
6b1eae313b2f
(https://phab.mercurial-scm.org/D10625).