core/pkgs/build-support/fetchrepoproject/default.nix

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{ lib, stdenvNoCC, gitRepo, cacert, copyPathsToStore }:
{ name, manifest, rev ? "HEAD", sha256
# Optional parameters:
, repoRepoURL ? "", repoRepoRev ? "", referenceDir ? "", manifestName ? ""
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, localManifests ? [ ], createMirror ? false, useArchive ? false }:
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assert repoRepoRev != "" -> repoRepoURL != "";
assert createMirror -> !useArchive;
let
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inherit (lib) concatMapStringsSep concatStringsSep fetchers optionalString;
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extraRepoInitFlags = [
(optionalString (repoRepoURL != "") "--repo-url=${repoRepoURL}")
(optionalString (repoRepoRev != "") "--repo-branch=${repoRepoRev}")
(optionalString (referenceDir != "") "--reference=${referenceDir}")
(optionalString (manifestName != "") "--manifest-name=${manifestName}")
];
repoInitFlags = [
"--manifest-url=${manifest}"
"--manifest-branch=${rev}"
"--depth=1"
(optionalString createMirror "--mirror")
(optionalString useArchive "--archive")
] ++ extraRepoInitFlags;
local_manifests = copyPathsToStore localManifests;
in stdenvNoCC.mkDerivation {
inherit name;
inherit cacert manifest rev repoRepoURL repoRepoRev referenceDir; # TODO
outputHashAlgo = "sha256";
outputHashMode = "recursive";
outputHash = sha256;
preferLocalBuild = true;
enableParallelBuilding = true;
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impureEnvVars = fetchers.proxyImpureEnvVars
++ [ "GIT_PROXY_COMMAND" "SOCKS_SERVER" ];
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nativeBuildInputs = [ gitRepo cacert ];
GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
buildCommand = ''
# Path must be absolute (e.g. for GnuPG: ~/.repoconfig/gnupg/pubring.kbx)
export HOME="$(pwd)"
mkdir $out
cd $out
mkdir .repo
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${optionalString (local_manifests != [ ]) ''
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mkdir .repo/local_manifests
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for local_manifest in ${
concatMapStringsSep " " toString local_manifests
}; do
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cp $local_manifest .repo/local_manifests/$(stripHash $local_manifest)
done
''}
repo init ${concatStringsSep " " repoInitFlags}
repo sync --jobs=$NIX_BUILD_CORES --current-branch
# TODO: The git-index files (and probably the files in .repo as well) have
# different contents each time and will therefore change the final hash
# (i.e. creating a mirror probably won't work).
${optionalString (!createMirror) ''
rm -rf .repo
find -type d -name '.git' -prune -exec rm -rf {} +
''}
'';
}