Replace a separate call to subprocess, starting `node` from scratch,
with an optional standalone node Express service which performs the
rendering. In benchmarking, this reduces the overhead of a KaTeX call
from 120ms to 2.8ms. This is notable because enough calls to KaTeX in
a single message would previously time out the whole message
rendering.
The service is optional because he majority of deployments do not use
enough LaTeX to merit the additional memory usage (60Mb).
Fixes: #17425.
Ever since we started bundling the app with webpack, there’s been less
and less overlap between our ‘static’ directory (files belonging to
the frontend app) and Django’s interpretation of the ‘static’
directory (files served directly to the web).
Split the app out to its own ‘web’ directory outside of ‘static’, and
remove all the custom collectstatic --ignore rules. This makes it
much clearer what’s actually being served to the web, and what’s being
bundled by webpack. It also shrinks the release tarball by 3%.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
On a 2 GiB, 1 CPU system, webpack would hit the Node.js heap
limit (which is half of physical memory up to 4 GiB, on 64-bit
systems).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
These changes are all independent of each other; I just didn’t feel
like making dozens of commits for them.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We lost the war against top level configuration files many moons ago.
This is what developers and tools expect. And it seems to be required
for eslint-import-resolver-webpack (there’s ostensibly a {"config":
"tools/webpack.config.ts"} option, but it doesn’t work correctly:
https://github.com/benmosher/eslint-plugin-import/issues/1861).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
There are file sharing issues with the macOS 10.15.6 and
vagrant. var/remote_cache_prefix was an empty file when using
VirtualBox and Docker on macOS.
Using parallels as a provider for vagrant fixes the issue.
Use --watch-poll which makes webpack to recompile
automatically on file changes, since inotify is not
working here too.
Fixes#2665.
Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.
Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start. I expect this change will increase pressure for us to split
those files, which isn't a bad thing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Automatically generated by the following script, based on the output
of lint with flake8-comma:
import re
import sys
last_filename = None
last_row = None
lines = []
for msg in sys.stdin:
m = re.match(
r"\x1b\[35mflake8 \|\x1b\[0m \x1b\[1;31m(.+):(\d+):(\d+): (\w+)", msg
)
if m:
filename, row_str, col_str, err = m.groups()
row, col = int(row_str), int(col_str)
if filename == last_filename:
assert last_row != row
else:
if last_filename is not None:
with open(last_filename, "w") as f:
f.writelines(lines)
with open(filename) as f:
lines = f.readlines()
last_filename = filename
last_row = row
line = lines[row - 1]
if err in ["C812", "C815"]:
lines[row - 1] = line[: col - 1] + "," + line[col - 1 :]
elif err in ["C819"]:
assert line[col - 2] == ","
lines[row - 1] = line[: col - 2] + line[col - 1 :].lstrip(" ")
if last_filename is not None:
with open(last_filename, "w") as f:
f.writelines(lines)
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Polling for changes every 100 milliseconds was burning enough CPU to
set mid-2015 MacBooks on fire. Use the default inotify watching,
except on filesystems where that’s known not to work (nfs, vboxsf), in
which case polling once per second is more than enough for even the
fastest typers.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This gives us access to typing_extensions.Deque, which was not added
to typing until 3.5.4.
(PROVISION_VERSION is not bumped because the transitive dependency set
in dev.txt hasn’t changed.)
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This exchanges a race condition where webpack-dev-server might not be
stopped on a poorly timed KeyboardInterrupt for a less bad race
condition where we might get an UnboundLocalError.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This should make the run-dev.py user experience a lot nicer when
switching branches away from a branch that is at least as new as this
commit, since we won't need to manually restart run-dev.py to restart
webpack.
Fixes#9042.
`tools/run-dev.py` already backgrounds `tools/webpack` (and deals with
cleaning it up on exit), so there’s no need for `tools/webpack` to
also background the actual `webpack` process. But when running
`tools/webpack` by itself, it’s annoying to clean up the backgrounded
process manually.
Run `webpack` in the foreground, using `os.execvp` so we don’t waste
memory on an intermediate wrapper process.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Before this change, the way we loaded
webpack for various tools was brittle.
First, I addressed test-api and test-help-documentation.
These tools used to be unable to run standalone on a
clean provision, because they were (indirectly)
calling tools/webpack without the `--test` option.
The problem was a bit obscure, since running things
like `./tools/test-backend` or `./tools/test-all` in
your workflow would create `./var/webpack-stats-test.json`
for the broken tools (and then they would work).
The tools themselves weren't broken; they were the
only relying on the common `test_server_running` helper.
And even that helper wasn't broken; it was just that
`run-dev.py` wasn't respecting the `--test` option.
So I made it so that `./tools/run-dev` passes in `--test` to
`./tools/webpack`.
To confuse matters even more, for some reason Casper
uses `./webpack-stats-production.json` via various
hacks for its webpack configuration, so when I fixed
the other tests, it broke Casper.
Here is the Casper-related hack in zproject/test_settings.py,
which was in place before my change and remains
after it:
if CASPER_TESTS:
WEBPACK_FILE = 'webpack-stats-production.json'
else:
WEBPACK_FILE = os.path.join('var', 'webpack-stats-test.json')
I added similar logic in tools/webpack:
if "CASPER_TESTS" in os.environ:
build_for_prod_or_casper(args.quiet)
I also made the helper functions in `./tools/webpack` have
nicer names.
So, now tools should all be able to run standalone and not
rely on previous tools creating webpack stats files for
them and leaving them in the file system. That's good.
Things are still a bit janky, though. It's not completely
clear to me why `test-js-with-casper` should work off of
a different webpack configuration than the other tests.
For now most of the jankiness is around Casper, and we have
hacks in two different places, `zproject/test_settings.py` and
`tools/webpack` to force it to use the production stats
file instead of the "test" one, even though Casper uses
test-like settings for other things like which database
you're using.
This makes it possible to again use the *.zulipdev.com domains in the
development environment.
Ideally, we'd also read REALM_HOSTS to make this more flexible.
This commit adds a --quiet argument to tools/webpack which removes
the verbose output from webpack and replaces it with showing only
errors. It also makes tools/run-dev --tests use this argument while
running webpack for testing.
Tweaked by tabbott to clean up the code a bit.
This commit fixes hot module replacement in webpack. To do this
we open port 9994 used by webpack to communicate between browser
and devserver. The attempts to forward the proxy from 9991 failed
so the last resort was to open up the webpack port.
It also removes an uncessary plugin in the webpack config and moves
the --hot flag to tools/webpack.
Anders Kaseorg
Alex Vandiver
Riken Shah
Tim Abbott
Dinesh
Aman
Anders Kaseorg
Tim Abbott
Wyatt Hoodes
Priyank Patel
Anders Kaseorg
Steve Howell
Armaan Ahluwalia