[rush] pnpmfile doesn't work with pnpm >=6

[egmacke]

Summary

The pnpmfile was changed when pnpm moved from v5.x.x to v6+. It moved from pnpmfile.js to .pnpmfile.cjs

This change does not seem to have been picked up by rush.

What were you trying to accomplish?

To fix a broken transitive dependency version.

What action did you perform that ran into trouble?

rush install

What went wrong?

The pnpm file never got run.

Repro steps

Repro repo: https://github.com/egmacke/rush-example

Check out the repo, and run rush install or rush update (include the --purge flag to run again)

Expected result: readPackage: Expect to see this for every package to be printed for every package being resolved.

Actual result: No output from pnpmfile readPackage

Details

What do you think is the cause of this problem?

The move by pnpm to rename the pnpmfile.js to .pnpmfile.cjs

How do you think we should fix this?

This can be manually fixed for a single run (until a rush purge) by copying/moving the common/temp/pnpmfile.js to common/temp/.pnpmfile.cjs and running rush update --full
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Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
@microsoft/rush globally installed version?	5.42.3
rushVersion from rush.json?	5.42.3
useWorkspaces from rush.json?	true
Operating system?	Linux
Would you consider contributing a PR?	Yes
Node.js version (node -v)?	14.15.1

[egmacke]

Closing as already been fixed recentl;y (fixed by v5.47.0)