Update the shell emulator version

[shawnmcknight]

• I'd be willing to implement this feature (contributing guide)

Describe the user story

I'd like to be able to use ${FOO:+bar} expressions in pnpm's built-in shell emulator. I believe that pnpm is using @yarnpkg/shell to provide the shell emulator support. That package added support for this expression syntax in yarnpkg/berry#3666.

If I'm following correctly, the shell-emulator support comes from the @pnpm/npm-lifecycle package. The package.json for that currently indicates that the version of @yarnpkg/shell being used is 3.2.0-rc.8. According to the CHANGELOG, this functionality was added in version 3.2.0, but I suspect it ended up in either a later rc version of 3.2.0 (there were 6 additional rc versions) or only in 3.2.0 proper since it does not appear to currently be working in pnpm's shell emulator. The latest stable release of that package is 3.2.5 but there are rc versions up to 4.0.0-rc.41.

Describe the solution you'd like

Update the version of @yarnpkg/shell to at least the latest stable version of 3.2.5 which should allow for ${FOO:+bar} expressions in the shell.

Describe the drawbacks of your solution

None that I can think of.

Describe alternatives you've considered

None that I can think of.

[zkochan]

ok, sounds good

[shawnmcknight]

I have submitted pnpm/npm-lifecycle#40 to bump the version of @yarnpkg/shell that is being used.

I guess since that package is in a separate repository, to get this into pnpm core, there would need to be a new release of pnpm/npm-lifecycle followed by a change to the dependencies of @pnpm/lifecycle to use that version.