This saves us from spending 200-250ms of CPU time importing Django
again just to log that we're running a management command. On
`scripts/restart-server`, this saves us from one thundering herd of
Django startups when all the queue workers are restarted; but there's
still the Django startup for the `manage.py` process itself for each
worker, so on a machine with e.g. 2 (virtual) cores the restart is
still painful.
In this commit we basically do these things:
* Clear up section_head_offsets before pushing stuff in it so that
its size doesn't keep on growing indefinitely with time and users
opening emoji picker.
* Make use of popover element to find the correct element in DOM
to scan for section elements. This prevents us from filling stuff
twice into section_head_offsets because of presence of two
elements for '.emoji-popover-subheading' in DOM since popover
destroy is an async call.
* Using this popover element also helps in avoiding manuplation
of the DOM elements of the popover that was destroyed (Because
popover destroy is async it still maybe around). One instance of
this is associating scroll event with the right instance of
'.emoji-popover-emoji-map'.
In this we basically seed a single message for the user which will
be soft deactivated by sending a stream message / group PM to
ensure that is has at least one UserMessage row, since in real
world every human user will always have at least one User Message
row.
Normally the "n" key skips over muted streams, but if we
are currently narrowed inside a muted stream, it will now
go to the next topics within that stream.
For me the use case was that I have a stream I check up on
about once a day, and "n" would be super useful for me to
clear out unread counts while still skimming some content,
and without having to temporarily unmute the stream.
Also unconditionally use the `mypy` from our virtualenv --
that's how we ensure we use a common version across different
Zulip developers and in CI.
And as a side effect of cutting some Python 2 vs. Python 3 logic,
fix a bug where `--all` was having no effect.
This keeps the examples in line with our actual codebase.
Also while I'm here revise it to explain the actual motivation for our
use of `env`, and to correct some subtle details -- it's actually the
kernel that interprets the shebang (as visible in e.g. a `strace` log),
not the shell, and when the program is executed as `./my_program.py`
the exact name including `./` is passed to the interpreter.
We had been forcing provision to Python 3 in dev. Now that everything
is Python 3 and the `tools/lib/provision.py` shebang reflects that, we
can just invoke the script directly like everything else.
This causes `upgrade-zulip-from-git`, as well as a no-option run of
`tools/build-release-tarball`, to produce a Zulip install running
Python 3, rather than Python 2. In particular this means that the
virtualenv we create, in which all application code runs, is Python 3.
One shebang line, on `zulip-ec2-configure-interfaces`, explicitly
keeps Python 2, and at least one external ops script, `wal-e`, also
still runs on Python 2. See discussion on the respective previous
commits that made those explicit. There may also be some other
third-party scripts we use, outside of this source tree and running
outside our virtualenv, that still run on Python 2.
An expression like `force_bytes(chr(...))`, on Python 3 where the
`force_bytes` finds itself with something to do because `chr` returns
a text string, gives the UTF-8 encoding of the given value as a
Unicode codepoint.
Here, we don't want that -- rather we want the given value as a
single byte. We can do that with `struct.pack`.
This fixes an issue where the "Link with Webathena" flow was producing
invalid credential caches when run on Python 3, breaking the Zephyr
mirror for any user who went through it anew.
Greg Price
Vishnu Ks
Aditya Bansal
Steve Howell
Vaida Plankyte
Tim Abbott
Umair Khan