Adds a `parallel` flag to `deno serve`. When present, we spawn multiple
workers to parallelize serving requests.
```bash
deno serve --parallel main.ts
```
Currently on linux we use `SO_REUSEPORT` and rely on the fact that the
kernel will distribute connections in a round-robin manner.
On mac and windows, we sort of emulate this by cloning the underlying
file descriptor and passing a handle to each worker. The connections
will not be guaranteed to be fairly distributed (and in practice almost
certainly won't be), but the distribution is still spread enough to
provide a significant performance increase.
---
(Run on an Macbook Pro with an M3 Max, serving `deno.com`
baseline::
```
❯ wrk -d 30s -c 125 --latency http://127.0.0.1:8000
Running 30s test @ http://127.0.0.1:8000
2 threads and 125 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 239.78ms 13.56ms 330.54ms 79.12%
Req/Sec 258.58 35.56 360.00 70.64%
Latency Distribution
50% 236.72ms
75% 248.46ms
90% 256.84ms
99% 268.23ms
15458 requests in 30.02s, 2.47GB read
Requests/sec: 514.89
Transfer/sec: 84.33MB
```
this PR (`with --parallel` flag)
```
❯ wrk -d 30s -c 125 --latency http://127.0.0.1:8000
Running 30s test @ http://127.0.0.1:8000
2 threads and 125 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 117.40ms 142.84ms 590.45ms 79.07%
Req/Sec 1.33k 175.19 1.77k 69.00%
Latency Distribution
50% 22.34ms
75% 223.67ms
90% 357.32ms
99% 460.50ms
79636 requests in 30.07s, 12.74GB read
Requests/sec: 2647.96
Transfer/sec: 433.71MB
```
This commit adds capability to format HTML, Svelte, Vue, Astro and Angular
files.
"--unstable-html" is required to format HTML files, and "--unstable-component"
flag is needed to format other formats. These can also be specified in the config
file.
Close #25015
This commit changes how system certificates are loaded on startup.
Instead of hard erroring if a certificate can't be decoded, we are now
printing a warning and bumping a hex representation of the certificate
and continue execution.
Ref https://github.com/denoland/deno/issues/24137
This commit adds the "--rc" flag to "deno upgrade" subcommand.
This flag allows to upgrade to the latest "release candidate" release.
The update checker was also updated to take this into account.
This commit stabilizes HMR functionality and renames
`--unstable-hmr` to `--watch-hmr`. The `--unstable-hmr`
flag is still working, but hidden from the help output.
It will be removed in Deno 2.
Once https://github.com/denoland/deno/pull/24958 lands
we should improve grouping of `--watch` and `--watch-hmr`
flags.
This PR integrates [Malva](https://github.com/g-plane/malva) into `deno
fmt`, which introduces the ability to format CSS, SCSS, Sass and Less
files.
On Linux x64 6.10, this PR increases about 800KiB:
```
❯ wc -c target/release/deno
125168728 target/release/deno
❯ wc -c target/release/deno
124349456 target/release/deno
```
This commit adds "--serve" flag to "deno init" subcommand,
that provides a template for quick starting a project using
"deno serve".
---------
Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>
This commit adds short CLI flags for following permission flags:
- "-R" for "--allow-read"
- "-W" for "--allow-write"
- "-E" for "--allow-env"
- "-N" for "--allow-net"
- "-S" for "--allow-sys"
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
This moves YAML formatting behind an unstable flag for Deno 1.46. This
will make it opt-in to start and then we can remove the flag to make it
on by default in version of Deno after that.
This can be specified by doing `deno fmt --unstable-yaml` or by
specifying the following in a deno.json file:
```json
{
"unstable": ["fmt-yaml"]
}
```
Fixes https://github.com/denoland/deno/issues/24756. Fixes
https://github.com/denoland/deno/issues/24796.
This also gets vitest working when using
[`--pool=forks`](https://vitest.dev/guide/improving-performance#pool)
(which is the default as of vitest 2.0). Ref
https://github.com/denoland/deno/issues/23882.
---
This PR resolves a handful of issues with child_process IPC. In
particular:
- We didn't support sending typed array views over IPC
- Opening an IPC channel resulted in the event loop never exiting
- Sending a `null` over IPC would terminate the channel
- There was some UB in the read implementation (transmuting an `&[u8]`
to `&mut [u8]`)
- The `send` method wasn't returning anything, so there was no way to
signal backpressure (this also resulted in the benchmark
`child_process_ipc.mjs` being misleading, as it tried to respect
backpressure. That gave node much worse results at larger message sizes,
and gave us much worse results at smaller message sizes).
- We weren't setting up the `channel` property on the `process` global
(or on the `ChildProcess` object), and also didn't have a way to
ref/unref the channel
- Calling `kill` multiple times (or disconnecting the channel, then
calling kill) would throw an error
- Node couldn't spawn a deno subprocess and communicate with it over IPC
```
> deno upgrade
error: Unsupported lockfile version 'invalid'. Try upgrading Deno or recreating the lockfile.
V:\scratch
> V:\deno\target\debug\deno upgrade
Looking up latest version
Local deno version 1.45.3 is the most recent release
```
Closes #24517
Closes #20729
This is in preparation for extracting out node resolution code from
ext/node (which is something I'm going to do gradually over time).
Uses https://github.com/denoland/deno_package_json
This commit fixes memory leak described in
https://github.com/denoland/deno/issues/24380.
This is done by upgrading following crates:
- deno_ast
- deno_graph
- eszip
- dprint-plugin-typescript
- deno_lint
- deno_doc
- deno_emit
Adds support for running npm package lifecycle scripts, opted into via a
new `--allow-scripts` flag.
With this PR, when running `deno cache` (or `DENO_FUTURE=1 deno
install`) you can specify the `--allow-scripts=pkg1,pkg2` flag to run
lifecycle scripts attached to the given packages.
Note at the moment this only works when `nodeModulesDir` is true (using
the local resolver).
When a package with un-run lifecycle scripts is encountered, we emit a
warning suggesting things may not work and to try running lifecycle
scripts. Additionally, if a package script implicitly requires
`node-gyp` and it's not found on the system, we emit a warning.
Extra things in this PR:
- Extracted out bits of `task.rs` into a separate module for reuse
- Added a couple fields to `process.config` in order to support
`node-gyp` (it relies on a few variables being there)
- Drive by fix to downloading new npm packages to test registry
---
TODO:
- [x] validation for allow-scripts args (make sure it looks like an npm
package)
- [x] make allow-scripts matching smarter
- [ ] figure out what issues this closes
---
Review notes:
- This adds a bunch of deps to our test registry due to using
`node-gyp`, so it's pretty noisy
This commit deprecates `deno vendor` subcommand in favor
of using `--vendor` flag or `"vendor": true` setting in the config file.
The subcommand is still available (until Deno 2) but is hidden from
the help output.
Closes #20584
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
The `jest` test runner popularized putting tests into a `__tests__`
folder. Whilst many have switched to going with a `.test` suffix in the
file name these days, there are still many jest projects that have
`__tests__`. By adding this to the default test detection logic it makes
`deno test` discover those out of the box.
Also don't panic on invalid domain names and addresses.
Extracted with cleanups up from #24080
Co-authored-by: Yazan AbdAl-Rahman <yazan.abdalrahman@exalt.ps>
