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Factor out the installer script

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This commit is contained in:
John Ericson 2023-12-03 18:29:15 -05:00
parent 60fe4ddaa1
commit 77003a4f0c
2 changed files with 46 additions and 32 deletions
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43
flake.nix
View file

@ -89,38 +89,17 @@
}); });
installScriptFor = systems: installScriptFor = systems:
with nixpkgsFor.x86_64-linux.native; nixpkgsFor.x86_64-linux.native.callPackage ./scripts/installer.nix {
runCommand "installer-script" systemTarballPairs = map
{ buildInputs = [ nix ]; (system: {
} inherit system;
'' tarball =
mkdir -p $out/nix-support if builtins.elem system crossSystems
then self.hydraJobs.binaryTarballCross.x86_64-linux.${system}
# Converts /nix/store/50p3qk8k...-nix-2.4pre20201102_550e11f/bin/nix to 50p3qk8k.../bin/nix. else self.hydraJobs.binaryTarball.${system};
tarballPath() { })
# Remove the store prefix systems;
local path=''${1#${builtins.storeDir}/} };
# Get the path relative to the derivation root
local rest=''${path#*/}
# Get the derivation hash
local drvHash=''${path%%-*}
echo "$drvHash/$rest"
}
substitute ${./scripts/install.in} $out/install \
${pkgs.lib.concatMapStrings
(system: let
tarball = if builtins.elem system crossSystems then self.hydraJobs.binaryTarballCross.x86_64-linux.${system} else self.hydraJobs.binaryTarball.${system};
in '' \
--replace '@tarballHash_${system}@' $(nix --experimental-features nix-command hash-file --base16 --type sha256 ${tarball}/*.tar.xz) \
--replace '@tarballPath_${system}@' $(tarballPath ${tarball}/*.tar.xz) \
''
)
systems
} --replace '@nixVersion@' ${version}
echo "file installer $out/install" >> $out/nix-support/hydra-build-products
'';
testNixVersions = pkgs: client: daemon: testNixVersions = pkgs: client: daemon:
pkgs.callPackage ./package.nix { pkgs.callPackage ./package.nix {

35
scripts/installer.nix Normal file
View file

@ -0,0 +1,35 @@
{ lib
, runCommand
, nix
, systemTarballPairs
}:
runCommand "installer-script" {
buildInputs = [ nix ];
} ''
mkdir -p $out/nix-support
# Converts /nix/store/50p3qk8k...-nix-2.4pre20201102_550e11f/bin/nix to 50p3qk8k.../bin/nix.
tarballPath() {
# Remove the store prefix
local path=''${1#${builtins.storeDir}/}
# Get the path relative to the derivation root
local rest=''${path#*/}
# Get the derivation hash
local drvHash=''${path%%-*}
echo "$drvHash/$rest"
}
substitute ${./install.in} $out/install \
${lib.concatMapStrings
({ system, tarball }:
'' \
--replace '@tarballHash_${system}@' $(nix --experimental-features nix-command hash-file --base16 --type sha256 ${tarball}/*.tar.xz) \
--replace '@tarballPath_${system}@' $(tarballPath ${tarball}/*.tar.xz) \
''
)
systemTarballPairs
} --replace '@nixVersion@' ${nix.version}
echo "file installer $out/install" >> $out/nix-support/hydra-build-products
''