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27 lines
773 B
27 lines
773 B
#!/usr/bin/env nix-shell
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#! nix-shell -i bash -p curl jq nix
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#
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# Updates nixpkgs.json to the latest or chosen nixpkgs revision
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#
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# Usage: ./update-nix
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# ./update-nix $rev
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# ./update-nix $owner $rev
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#
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# Arguments default to owner=nixos and rev=master and refer
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# to the github owner of a nixpkgs fork and a git revision.
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#
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set -exo pipefail
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owner="nixos"
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if [ ! -z "$2" ]; then
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owner="$1"
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rev="$2"
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else
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rev="${1:-master}"
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fi
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resolved_rev=$(curl "https://api.github.com/repos/${owner}/nixpkgs/commits?sha=${rev}" | jq -r 'first.sha')
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url="https://github.com/${owner}/nixpkgs/archive/${resolved_rev}.tar.gz"
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digest=$(nix-prefetch-url --unpack "$url")
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echo "{\"url\": \"${url}\", \"sha256\": \"${digest}\"}" | jq '.' > nix/nixpkgs.json
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