swc starts failing in RBE after v0.5.1

[danigar]

Building typescript srcs using ts_project rule with swc transpiler fails in RBE mode since swc version 0.5.1 (also tested with the latest release v0.7.0). Local sandbox execution is successfull.

Prior to v0.5.0, swc RBE transpilation worked just fine with the same config.

The output stack trace of the error is:

Error: Cannot find module 'slash'
Require stack:
- /var/lib/../exec/bazel-out/exec/bin/external/aspect_rules_swc/swc/node_modules/@swc/cli/lib/swc/dir.js

It looks like in RBE mode executors cannot resolve npm dependencies required by swc cli.
I've checked that slash package can be found in /var/lib/../exec/bazel-out/exec-EAxs2/bin/external/aspect_rules_swc/swc/node_modules/.aspect_rules_js.

Repro

I've created a test case repository to show all the config that makes it fail.

https://github.com/danigar/bazel-swc-lab

[alexeagle]

I think this is another case of bazelbuild/bazel#10298
rules_js switched to pnpm under the hood, and it relies on symlinks into an npm package virtual store.

[alexeagle]

For SWC specifically the best fix is to simply stop depending on the node.js @swc/cli package, and thus rules_js. We only need the pure-rust CLI.

So #57 could fix this.

[alexeagle]

#57 still seems hard, there are some missing things in the rust CLI.

Separately, the fix for RBE in rules_js is making progress today :)

[alexeagle]

update: latest rules_js release has RBE support. I'm still working on #57

[alexeagle]

With the latest rules_js and USE_BAZEL_VERSION of last_green, this should be fixed since rules_js works with RBE now.

#57 would still be nice, but no longer a blocker.