9596c642d5
Change-Id: I1c7d48fc0974549d67146a15f79ddb0b6ddfe805 Reviewed-on: https://cl.tvl.fyi/c/depot/+/4947 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
40 lines
1.5 KiB
Bash
Executable file
40 lines
1.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -ueo pipefail
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# Each Buildkite build stores the derivation target map as a pipeline
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# artifact. This script determines the most appropriate commit (the
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# fork point of the current chain from canon) and fetches the
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# artifact.
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#
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# Since builds can be based on canon before the pipeline for the last
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# commit has finished, it is possible that the fork point has no
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# target map. To account for this, we will go up to 3 commits back in
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# time to find a map.
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#
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# If no map is found, the failure mode is not critical: We simply
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# build all targets.
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function most_relevant_builds {
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git fetch -v origin canon
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local FIRST=$(git merge-base --fork-point HEAD origin/canon)
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local SECOND=$(git rev-parse "$FIRST~1")
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local THIRD=$(git rev-parse "$FIRST~2")
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curl 'https://graphql.buildkite.com/v1' \
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--silent \
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-H "Authorization: Bearer $(cat /run/agenix/buildkite-graphql-token)" \
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-d "{\"query\": \"query { pipeline(slug: \\\"tvl/depot\\\") { builds(commit: [\\\"$FIRST\\\",\\\"$SECOND\\\",\\\"$THIRD\\\"]) { edges { node { uuid }}}}}\"}" | \
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jq -r '.data.pipeline.builds.edges[] | .node.uuid'
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}
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mkdir -p tmp
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for build in $(most_relevant_builds); do
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echo "Checking artifacts for build $build"
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buildkite-agent artifact download --build "${build}" 'pipeline/drvmap.json' 'tmp/' || true
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if [[ -f "tmp/pipeline/drvmap.json" ]]; then
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echo "Fetched target map from build ${build}"
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mv tmp/pipeline/drvmap.json parent-target-map.json
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break
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fi
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done
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