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nixos-rebuild: Allow remote building when using flakes

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This commit is contained in:
Charlotte Van Petegem 2021-04-15 15:40:20 +02:00
parent 652749c4ca
commit 456aa2db49
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GPG key ID: 019E764B7184435A
1 changed files with 53 additions and 12 deletions
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65
pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
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@ -214,6 +214,49 @@ nixBuild() {
fi
}
nixFlakeBuild() {
if [ -z "$buildHost" ]; then
nix build "$@" --out-link "${tmpDir}/result"
readlink -f "${tmpDir}/result"
else
local attr="$1"
shift 1
local evalArgs=()
local buildArgs=()
while [ "$#" -gt 0 ]; do
local i="$1"; shift 1
case "$i" in
--recreate-lock-file|--no-update-lock-file|--no-write-lock-file|--no-registries|--commit-lock-file)
evalArgs+=("$i")
;;
--update-input)
local j="$1"; shift 1
evalArgs+=("$i" "$j")
;;
--override-input)
local j="$1"; shift 1
local k="$1"; shift 1
evalArgs+=("$i" "$j" "$k")
;;
*)
buildArgs+=("$i")
;;
esac
done
local drv="$(nix "${flakeFlags[@]}" eval --raw "${attr}.drvPath" "${evalArgs[@]}" "${extraBuildArgs[@]}")"
if [ -a "$drv" ]; then
NIX_SSHOPTS=$SSHOPTS nix "${flakeFlags[@]}" copy --derivation --to "ssh://$buildHost" "$drv"
# The 'nix-command flakes' part in "${flakeFlags[@]}" is seen as two separate args over SSH
buildHostCmd nix --experimental-features "'nix-command flakes'" build "${buildArgs[@]}" --out-link "${tmpDir}/result" "$drv"
buildHostCmd readlink -f "${tmpDir}/result"
else
echo "nix eval failed"
exit 1
fi
fi
}
if [ -z "$action" ]; then showSyntax; fi
@ -315,8 +358,14 @@ fi
tmpDir=$(mktemp -t -d nixos-rebuild.XXXXXX)
SSHOPTS="$NIX_SSHOPTS -o ControlMaster=auto -o ControlPath=$tmpDir/ssh-%n -o ControlPersist=60"
if [ -n "$buildHost" -a -n "$flake" ]; then
buildHostCmd mkdir -p "$tmpDir"
fi
cleanup() {
if [ -n "$buildHost" -a -n "$flake" ]; then
buildHostCmd rm -rf "$tmpDir"
fi
for ctrl in "$tmpDir"/ssh-*; do
ssh -o ControlPath="$ctrl" -O exit dummyhost 2>/dev/null || true
done
@ -418,10 +467,7 @@ if [ -z "$rollback" ]; then
if [[ -z $flake ]]; then
pathToConfig="$(nixBuild '<nixpkgs/nixos>' --no-out-link -A system "${extraBuildFlags[@]}")"
else
outLink=$tmpDir/result
nix "${flakeFlags[@]}" build "$flake#$flakeAttr.config.system.build.toplevel" \
"${extraBuildFlags[@]}" "${lockFlags[@]}" --out-link $outLink
pathToConfig="$(readlink -f $outLink)"
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
fi
copyToTarget "$pathToConfig"
targetHostCmd nix-env -p "$profile" --set "$pathToConfig"
@ -429,24 +475,19 @@ if [ -z "$rollback" ]; then
if [[ -z $flake ]]; then
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A system -k "${extraBuildFlags[@]}")"
else
nix "${flakeFlags[@]}" build "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}"
pathToConfig="$(readlink -f ./result)"
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
fi
elif [ "$action" = build-vm ]; then
if [[ -z $flake ]]; then
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vm -k "${extraBuildFlags[@]}")"
else
nix "${flakeFlags[@]}" build "$flake#$flakeAttr.config.system.build.vm" \
"${extraBuildFlags[@]}" "${lockFlags[@]}"
pathToConfig="$(readlink -f ./result)"
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.vm" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
fi
elif [ "$action" = build-vm-with-bootloader ]; then
if [[ -z $flake ]]; then
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vmWithBootLoader -k "${extraBuildFlags[@]}")"
else
nix "${flakeFlags[@]}" build "$flake#$flakeAttr.config.system.build.vmWithBootLoader" \
"${extraBuildFlags[@]}" "${lockFlags[@]}"
pathToConfig="$(readlink -f ./result)"
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.vmWithBootLoader" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
fi
else
showSyntax