74 lines
3.4 KiB
YAML
74 lines
3.4 KiB
YAML
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---
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name: Set up Go with a shared module cache
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description: Set up Go with a shared module cache
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inputs:
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github-token:
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description: "An elevated Github token to access private modules if necessary"
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type: string
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no-restore:
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description: "Whether or not to restore the Go module cache on a cache hit"
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type: boolean
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default: false
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outputs:
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cache-key:
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description: "The Go modules cache key"
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value: ${{ steps.metadata.outputs.cache-key }}
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cache-path:
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description: "The GOMODCACHE path"
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value: ${{ steps.metadata.outputs.cache-path }}
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go-version:
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description: "The version of Go in the .go-version file"
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value: ${{ steps.go-version.outputs.go-version }}
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runs:
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using: composite
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steps:
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- uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
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- id: go-version
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shell: bash
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run: echo "go-version=$(cat ./.go-version)" >> "$GITHUB_OUTPUT"
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- uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
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with:
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go-version: ${{ steps.go-version.outputs.go-version }}
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cache: false # We use our own caching strategy
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- id: metadata
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shell: bash
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run: |
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echo "cache-path=$(go env GOMODCACHE)" >> "$GITHUB_OUTPUT"
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echo "cache-key=go-modules-${{ hashFiles('**/go.sum') }}" >> "$GITHUB_OUTPUT"
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- id: cache-modules
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uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
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with:
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enableCrossOsArchive: true
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lookup-only: ${{ inputs.no-restore }}
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# We need to be very considerate of our caching strategy because Github only allows 10gb
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# of caches per repository before it starts to evict older caches. This is usually fine
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# if you only use the actions cache for cache, but we also use it for Go test time results.
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# These results are used to balance our Go test groups, without which we could have
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# painfully unbalanced Go test execution times. We have to ensure current caches for all
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# active release branches and main do not exceed 10gb. Ideally we'd cache Go modules
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# and Go build cache on a per version/platform/architecture/tag/module basis, but that
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# would result in several hungred gb over all of our build workflows and release branches.
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# Instead, we've chosen a middle ground approach where were share Go modules between build
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# workflows but lose the Go build cache.
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# We intentionally do not use partial restore keys. If we get dont get an exact cache hit
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# we only want to download the latest modules, not append them to a prior cache. This
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# keeps cache upload time, download time, and storage size to a minimum.
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path: ${{ steps.metadata.outputs.cache-path }}
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key: ${{ steps.metadata.outputs.cache-key }}
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- if: steps.cache-modules.outputs.cache-hit != 'true'
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name: Download go modules
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shell: bash
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run: |
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git config --global url."https://${{ inputs.github-token }}@github.com".insteadOf https://github.com
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# go list ./... forces downloading some additional versions of modules that 'go mod
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# download' misses. We need this because we make use of go list itself during
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# code generation in later builds that rely on this module cache.
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go list ./...
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go list -test ./...
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go mod download
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( cd sdk && go mod download )
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( cd api && go mod download )
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