nixpkgs/pkgs/build-support/fetchpijul/default.nix

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{ lib, stdenvNoCC, pijul, cacert }:
lib.makeOverridable (
{ url
, hash ? ""
, change ? null
, state ? null
, channel ? "main"
, name ? "fetchpijul"
, # TODO: Changes in pijul are unordered so there's many ways to end up with the same repository state.
# This makes leaveDotPijul unfeasible to implement until pijul CLI implements
# a way of reordering changes to sort them in a consistent and deterministic manner.
# leaveDotPijul ? false
}:
if change != null && state != null then
throw "Only one of 'change' or 'state' can be set"
else
stdenvNoCC.mkDerivation {
inherit name;
nativeBuildInputs = [ pijul cacert ];
strictDeps = true;
dontUnpack = true;
dontConfigure = true;
dontBuild = true;
installPhase = ''
runHook preInstall
pijul clone \
''${change:+--change "$change"} \
''${state:+--state "$state"} \
--channel "$channel" \
"$url" \
"$out"
runHook postInstall
'';
fixupPhase = ''
runHook preFixup
rm -rf "$out/.pijul"
runHook postFixup
'';
outputHashAlgo = if hash != "" then null else "sha256";
outputHashMode = "recursive";
outputHash = if hash != "" then
hash
else
lib.fakeSha256;
inherit url change state channel;
impureEnvVars = lib.fetchers.proxyImpureEnvVars;
}
)