fix: support cache computation on windows

[GerkinDev]

On windows runners, the cache keys fails to be computed because of the checksum function that can't find the file in /tmp. Indeed, it seems that bash /tmp is not the runner's C:\tmp directory.

See https://app.circleci.com/pipelines/github/KnodesCommunity/typedoc-plugins/693/workflows/897cb674-230e-46ae-99f5-b10d93f4b723/jobs/3872/parallel-runs/0/steps/0-106 for an example of failed step

[KyleTryon]

Thank you for this @GerkinDev,
This looks like an excellent change. I just ran the tests and got hung up on the Shellcheck step. There is a suggestion for an alternative to the current if statement, would you mind making this change?

In ./src/scripts/packages/determine-lockfile.sh line 2:
if ! [ -z $HOMEDRIVE ]; then
^-- SC2237: Use [ -n .. ] instead of ! [ -z .. ].

For more information:
https://www.shellcheck.net/wiki/SC2237 -- Use [ -n .. ] instead of ! [ -z ....
Exited with code exit status 1

[GerkinDev]

@KyleTryon fixed.
Please note that I don't know how to properly test the changes, that were done mostly blind. A proper test on MacOS/Linux/Windows would be great

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[EricRibeiro]

@KyleTryon fixed. Please note that I don't know how to properly test the changes, that were done mostly blind. A proper test on MacOS/Linux/Windows would be great

Thanks, @GerkinDev! Your changes are working great with the existing macOS and Linux tests. I included one for Windows here: 4a4fca6.

[GerkinDev]

Glad I can count on caching now :) thank you !

[seanssel]

Not sure if I'm missing something, but dependency caching doesn't seem to work for me on Windows runners (latest version, just running install-packages). It finds a cache at C:\Users\circleci\.npm, but there are always just a few bytes in there. Also seeing a bunch of (node:1272) MaxListenersExceededWarning: Possible EventEmitter memory leak detected during this step.

I know Windows isn't officially supported, but I'm curious how people are using this successfully.