Wolfgang WaltherandWolfgang Walther
e4c60889ee
Previously this command upgraded to the latest unstable version of nixpkgs, but this was often broken. Taking the latest stable branch should give better results.
56 lines
1.5 KiB
Nix
56 lines
1.5 KiB
Nix
{ buildToolbox
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, checkedShellScript
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, coreutils
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, curl
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, jq
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, nix
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}:
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# Utility script for pinning the latest stable version of Nixpkgs.
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# Instead of pinning Nixpkgs based on the huge Git repository, we reference a
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# specific tarball that only contains the source of the revision that we want
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# to pin.
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let
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name =
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"postgrest-nixpkgs-upgrade";
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refUrl =
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"https://api.github.com/repos/nixos/nixpkgs/git/matching-refs/heads/nixpkgs-";
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githubV3Header =
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"Accept: application/vnd.github.v3+json";
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tarballUrlBase =
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"https://github.com/nixos/nixpkgs/archive/";
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upgrade =
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checkedShellScript
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{
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inherit name;
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docs = "Pin the newest stable version of Nixpkgs.";
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inRootDir = true;
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}
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''
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# The list of refs is sorted. The first result will be nixpkgs-unstable, the second the latest stable branch.
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commitHash="$(${curl}/bin/curl "${refUrl}" -H "${githubV3Header}" | ${jq}/bin/jq -r 'sort_by(.ref) | reverse | .[1].object.sha')"
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tarballUrl="${tarballUrlBase}$commitHash.tar.gz"
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tarballHash="$(${nix}/bin/nix-prefetch-url --unpack "$tarballUrl")"
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currentDate="$(${coreutils}/bin/date --iso)"
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cat > nix/nixpkgs-version.nix << EOF
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# Pinned version of Nixpkgs, generated with ${name}.
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{
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date = "$currentDate";
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rev = "$commitHash";
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tarballHash = "$tarballHash";
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}
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EOF
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'';
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in
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buildToolbox
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{
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name = "postgrest-nixpkgs";
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tools = [ upgrade ];
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}
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