mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-01 07:01:54 +00:00
Revert "Revert "nixos-rebuild: Add option for building and/or deploying on a remote host""
This reverts commit 78be7f5a53.
This commit is contained in:
Rickard Nilsson
parent
23f5e3c90f
commit
fb2eae08d5
@ -19,6 +19,8 @@ rollback=
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upgrade=
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repair=
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profile=/nix/var/nix/profiles/system
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buildHost=
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targetHost=
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while [ "$#" -gt 0 ]; do
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i="$1"; shift 1
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@ -73,6 +75,14 @@ while [ "$#" -gt 0 ]; do
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fi
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shift 1
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;;
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--build-host|h)
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buildHost="$1"
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shift 1
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;;
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--target-host|t)
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targetHost="$1"
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shift 1
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;;
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*)
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echo "$0: unknown option \`$i'"
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exit 1
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@ -80,6 +90,90 @@ while [ "$#" -gt 0 ]; do
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esac
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done
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if [ -z "$buildHost" -a -n "$targetHost" ]; then
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buildHost="$targetHost"
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fi
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if [ "$targetHost" = localhost ]; then
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targetHost=
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fi
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if [ "$buildHost" = localhost ]; then
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buildHost=
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fi
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buildHostCmd() {
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if [ -z "$buildHost" ]; then
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"$@"
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elif [ -n "$remoteNix" ]; then
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ssh $SSHOPTS "$buildHost" PATH="$remoteNix:$PATH" "$@"
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else
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ssh $SSHOPTS "$buildHost" "$@"
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fi
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}
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targetHostCmd() {
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if [ -z "$targetHost" ]; then
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"$@"
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else
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ssh $SSHOPTS "$targetHost" "$@"
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fi
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}
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copyToTarget() {
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if ! [ "$targetHost" = "$buildHost" ]; then
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if [ -z "$targetHost" ]; then
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NIX_SSHOPTS=$SSH_OPTS nix-copy-closure --from "$buildHost" "$1"
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elif [ -z "$buildHost" ]; then
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NIX_SSHOPTS=$SSH_OPTS nix-copy-closure --to "$targetHost" "$1"
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else
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buildHostCmd nix-copy-closure --to "$targetHost" "$1"
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fi
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fi
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}
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nixBuild() {
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if [ -z "$buildHost" ]; then
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nix-build "$@"
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else
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local instArgs=()
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local buildArgs=()
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while [ "$#" -gt 0 ]; do
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local i="$1"; shift 1
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case "$i" in
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-o)
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local out="$1"; shift 1
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buildArgs+=("--add-root" "$out" "--indirect")
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;;
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-A)
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local j="$1"; shift 1
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instArgs+=("$i" "$j")
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;;
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-I)
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# We don't want this in buildArgs
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shift 1
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;;
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"<"*) # nix paths
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instArgs+=("$i")
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;;
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*)
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buildArgs+=("$i")
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;;
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esac
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done
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local drv="$(nix-instantiate "${instArgs[@]}" "${extraBuildFlags[@]}")"
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if [ -a "$drv" ]; then
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NIX_SSHOPTS=$SSH_OPTS nix-copy-closure --to "$buildHost" "$drv"
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buildHostCmd nix-store -r "$drv" "${buildArgs[@]}"
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else
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echo "nix-instantiate failed"
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exit 1
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fi
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fi
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}
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if [ -z "$action" ]; then showSyntax; fi
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# Only run shell scripts from the Nixpkgs tree if the action is
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@ -128,7 +222,16 @@ fi
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tmpDir=$(mktemp -t -d nixos-rebuild.XXXXXX)
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trap 'rm -rf "$tmpDir"' EXIT
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SSHOPTS="$NIX_SSHOPTS -o ControlMaster=auto -o ControlPath=$tmpDir/ssh-%n -o ControlPersist=60"
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cleanup() {
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for ctrl in "$tmpDir"/ssh-*; do
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ssh -o ControlPath="$ctrl" -O exit dummyhost 2>/dev/null || true
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done
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rm -rf "$tmpDir"
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}
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trap cleanup EXIT
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# If the Nix daemon is running, then use it. This allows us to use
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@ -150,30 +253,56 @@ if [ -n "$rollback" -o "$action" = dry-build ]; then
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buildNix=
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fi
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prebuiltNix() {
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machine="$1"
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if [ "$machine" = x86_64 ]; then
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return /nix/store/xryr9g56h8yjddp89d6dw12anyb4ch7c-nix-1.10
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elif [[ "$machine" =~ i.86 ]]; then
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return /nix/store/2w92k5wlpspf0q2k9mnf2z42prx3bwmv-nix-1.10
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else
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echo "$0: unsupported platform"
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exit 1
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fi
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}
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remotePATH=
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if [ -n "$buildNix" ]; then
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echo "building Nix..." >&2
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if ! nix-build '<nixpkgs/nixos>' -A config.nix.package -o $tmpDir/nix "${extraBuildFlags[@]}" > /dev/null; then
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if ! nix-build '<nixpkgs/nixos>' -A nixFallback -o $tmpDir/nix "${extraBuildFlags[@]}" > /dev/null; then
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if ! nix-build '<nixpkgs>' -A nix -o $tmpDir/nix "${extraBuildFlags[@]}" > /dev/null; then
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machine="$(uname -m)"
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if [ "$machine" = x86_64 ]; then
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nixStorePath=/nix/store/xryr9g56h8yjddp89d6dw12anyb4ch7c-nix-1.10
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elif [[ "$machine" =~ i.86 ]]; then
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nixStorePath=/nix/store/2w92k5wlpspf0q2k9mnf2z42prx3bwmv-nix-1.10
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else
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echo "$0: unsupported platform"
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exit 1
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fi
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nixDrv=
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if ! nixDrv="$(nix-instantiate '<nixpkgs/nixos>' --add-root $tmpDir/nixdrv --indirect -A config.nix.package "${extraBuildFlags[@]}")"; then
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if ! nixDrv="$(nix-instantiate '<nixpkgs/nixos>' --add-root $tmpDir/nixdrv --indirect -A nixFallback "${extraBuildFlags[@]}")"; then
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if ! nixDrv="$(nix-instantiate '<nixpkgs>' --add-root $tmpDir/nixdrv --indirect -A nix "${extraBuildFlags[@]}")"; then
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nixStorePath="$(prebuiltNix "$(uname -m)")"
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if ! nix-store -r $nixStorePath --add-root $tmpDir/nix --indirect \
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--option extra-binary-caches https://cache.nixos.org/; then
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echo "warning: don't know how to get latest Nix" >&2
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fi
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# Older version of nix-store -r don't support --add-root.
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[ -e $tmpDir/nix ] || ln -sf $nixStorePath $tmpDir/nix
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if [ -n "$buildHost" ]; then
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remoteNixStorePath="$(prebuiltNix "$(buildHostCmd uname -m)")"
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remoteNix="$remoteNixStorePath/bin"
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if ! buildHostCmd nix-store -r $remoteNixStorePath \
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--option extra-binary-caches https://cache.nixos.org/ >/dev/null; then
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remoteNix=
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echo "warning: don't know how to get latest Nix" >&2
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fi
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fi
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fi
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fi
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fi
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PATH=$tmpDir/nix/bin:$PATH
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if [ -a "$nixDrv" ]; then
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nix-store -r "$nixDrv" --add-root $tmpDir/nix --indirect >/dev/null
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if [ -n "$buildHost" ]; then
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nix-copy-closure --to "$buildHost" "$nixDrv"
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# The nix build produces multiple outputs, we add them all to the remote path
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for p in $(buildHostCmd nix-store -r "$(readlink "$nixDrv")" "${buildArgs[@]}"); do
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remoteNix="$remoteNix${remoteNix:+:}$p/bin"
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done
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fi
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fi
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PATH="$tmpDir/nix/bin:$PATH"
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fi
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@ -200,31 +329,35 @@ fi
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if [ -z "$rollback" ]; then
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echo "building the system configuration..." >&2
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if [ "$action" = switch -o "$action" = boot ]; then
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nix-env "${extraBuildFlags[@]}" -p "$profile" -f '<nixpkgs/nixos>' --set -A system
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pathToConfig="$profile"
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pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A system "${extraBuildFlags[@]}")"
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copyToTarget "$pathToConfig"
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targetHostCmd nix-env -p "$profile" --set "$pathToConfig"
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elif [ "$action" = test -o "$action" = build -o "$action" = dry-build -o "$action" = dry-activate ]; then
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nix-build '<nixpkgs/nixos>' -A system -k "${extraBuildFlags[@]}" > /dev/null
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pathToConfig=./result
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pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A system -k "${extraBuildFlags[@]}")"
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elif [ "$action" = build-vm ]; then
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nix-build '<nixpkgs/nixos>' -A vm -k "${extraBuildFlags[@]}" > /dev/null
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pathToConfig=./result
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pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vm -k "${extraBuildFlags[@]}")"
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elif [ "$action" = build-vm-with-bootloader ]; then
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nix-build '<nixpkgs/nixos>' -A vmWithBootLoader -k "${extraBuildFlags[@]}" > /dev/null
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pathToConfig=./result
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pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vmWithBootLoader -k "${extraBuildFlags[@]}")"
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else
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showSyntax
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fi
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# Copy build to target host if we haven't already done it
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if ! [ "$action" = switch -o "$action" = boot ]; then
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copyToTarget "$pathToConfig"
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fi
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else # [ -n "$rollback" ]
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if [ "$action" = switch -o "$action" = boot ]; then
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nix-env --rollback -p "$profile"
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targetHostCmd nix-env --rollback -p "$profile"
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pathToConfig="$profile"
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elif [ "$action" = test -o "$action" = build ]; then
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systemNumber=$(
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nix-env -p "$profile" --list-generations |
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targetHostCmd nix-env -p "$profile" --list-generations |
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sed -n '/current/ {g; p;}; s/ *\([0-9]*\).*/\1/; h'
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)
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ln -sT "$profile"-${systemNumber}-link ./result
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pathToConfig=./result
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pathToConfig="$profile"-${systemNumber}-link
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if [ -z "$targetHost" ]; then
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ln -sT "$pathToConfig" ./result
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fi
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else
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showSyntax
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fi
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@ -234,7 +367,7 @@ fi
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# If we're not just building, then make the new configuration the boot
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# default and/or activate it now.
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if [ "$action" = switch -o "$action" = boot -o "$action" = test -o "$action" = dry-activate ]; then
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if ! $pathToConfig/bin/switch-to-configuration "$action"; then
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if ! targetHostCmd $pathToConfig/bin/switch-to-configuration "$action"; then
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echo "warning: error(s) occurred while switching to the new configuration" >&2
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exit 1
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fi
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