mirror of
https://github.com/fort-nix/nix-bitcoin.git
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48 lines
1.1 KiB
Bash
Executable File
48 lines
1.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build a single-output derivation and store it in 'cachixCache'.
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# Skip the build if it is already cached.
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# Accepts the same arguments as nix-instantiate.
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set -euo pipefail
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CACHIX_SIGNING_KEY=${CACHIX_SIGNING_KEY:-}
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cachixCache=nix-bitcoin
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trap 'echo Error at line $LINENO' ERR
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tmpDir=$(mktemp -d -p /tmp)
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trap "rm -rf $tmpDir" EXIT
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## Instantiate
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time nix-instantiate "$@" --add-root $tmpDir/drv --indirect > /dev/null
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printf "instantiated "; realpath $tmpDir/drv
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outPath=$(nix-store --query $tmpDir/drv)
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if nix path-info --store https://$cachixCache.cachix.org $outPath &>/dev/null; then
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echo "$outPath has already been built successfully."
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exit 0
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fi
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## Build
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if [[ -v CIRRUS_CI ]]; then
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cachix use $cachixCache
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fi
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if [[ $CACHIX_SIGNING_KEY ]]; then
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# Speed up task by uploading store paths as soon as they are created
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buildCmd="cachix watch-exec $cachixCache nix-build --"
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else
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buildCmd=nix-build
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fi
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$buildCmd --out-link $tmpDir/result $tmpDir/drv >/dev/null
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if [[ $CACHIX_SIGNING_KEY ]]; then
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cachix push $cachixCache $outPath
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fi
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echo $outPath
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