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Nested variable substitution #26428
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I am using a matrix to run my unit tests in a variety of environments. I have a dependencies file per environment. I want to use the hash of this in the cache restore key so I need to define the file to look for using the ${{ matrix.stack }} variable (which is just a string) like so: The nested expansion of ${{ matrix.stack }} within the hashFiles call doesn’t happen so the key defaults to: Therefore the cached environment is always restored even when the environment file is changed. |
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Replies: 3 comments 1 reply
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Nested expressions are not supported I think? You can do the following however:
Context and expression syntax for GitHub Actions - GitHub Docs |
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Fantastic, that’s worked perfectly. I’d missed the |
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this doesn't work for For now I have resorted to a setup job to manipulate the json with |
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@nrdxp It took me a while to figure this out, but you can use the 'index' notation to accomplish this: target: ${{ fromJSON(needs.discover.outputs.hits)[format('{0}Jobs', input.environment)]['deploy'] }} |
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Nested expressions are not supported I think?
You can do the following however:
key: ${{ format('{0}-conda-stage-{1}-{2}', runner.os, matrix.stack, hashFiles(format('env/{0}_environment.yml', matrix.stack))) }}
docs.github.comContext and expression syntax for GitHub Actions - GitHub Docs