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use stdenv on nixos-deploy derivation

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William 2025-07-13 18:44:55 -03:00
parent 8a1af741dd
commit 79a2576dfd
1 changed files with 120 additions and 97 deletions
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217
packages/nixos-deploy.nix
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@ -1,111 +1,134 @@
{
lib,
writeShellScript,
nixos-rebuild,
openssh,
coreutils,
gnugrep,
gawk,
{ lib
, stdenv
, nixos-rebuild
, openssh
, coreutils
, gnugrep
, gawk
}:
writeShellScript "nixos-deploy" ''
set -euo pipefail
stdenv.mkDerivation rec {
pname = "nixos-deploy";
version = "1.0";
LOCAL_BUILD=false
ACTION="switch"
FLAKE_URI=""
TARGET_HOST=""
SSH_USER=""
SSH_HOST=""
src = lib.fakeSha256; # will be ignored since we're using `installPhase`
show_usage() {
echo -e "Usage: nixos-deploy [--local-build] [--boot] <flake-uri> [user@]host"
echo ""
echo -e "Arguments:"
echo " flake-uri Flake URI (e.g., .#hostname)"
echo " [user@]host Target host, optionally with user"
echo ""
echo -e "Options:"
echo " --local-build Build locally instead of on remote"
echo " --boot Use 'boot' instead of 'switch' action"
echo ""
echo -e "Examples:"
echo " nixos-deploy .#hostname user@192.168.1.10"
echo " nixos-deploy --local-build .#hostname 192.168.1.10"
echo " nixos-deploy --boot .#hostname 192.168.1.10"
echo " nixos-deploy .#hostname 192.168.1.10 # uses current user"
exit 1
}
dontUnpack = true;
while [[ $# -gt 0 ]]; do
case $1 in
--local-build)
LOCAL_BUILD=true
shift
;;
--boot)
ACTION="boot"
shift
;;
--help|-h)
show_usage
;;
-*)
echo -e "Unknown option: $1"
show_usage
;;
*)
if [[ -z "$FLAKE_URI" ]]; then
FLAKE_URI="$1"
elif [[ -z "$TARGET_HOST" ]]; then
TARGET_HOST="$1"
else
echo -e "Too many arguments"
show_usage
fi
shift
;;
esac
done
buildInputs = [ ];
if [[ -z "$FLAKE_URI" ]]; then
echo -e "flake-uri is required"
show_usage
fi
installPhase = ''
mkdir -p $out/bin
cat > $out/bin/nixos-deploy << 'EOF'
#!/usr/bin/env bash
set -euo pipefail
if [[ -z "$TARGET_HOST" ]]; then
echo -e "target host is required"
show_usage
fi
LOCAL_BUILD=false
ACTION="switch"
FLAKE_URI=""
TARGET_HOST=""
SSH_USER=""
SSH_HOST=""
if [[ "$TARGET_HOST" == *"@"* ]]; then
SSH_USER="''${TARGET_HOST%@*}"
SSH_HOST="''${TARGET_HOST#*@}"
else
SSH_USER="$(${coreutils}/bin/whoami)"
SSH_HOST="$TARGET_HOST"
fi
show_usage() {
echo -e "Usage: nixos-deploy [--local-build] [--boot] <flake-uri> [user@]host"
echo ""
echo -e "Arguments:"
echo " flake-uri Flake URI (e.g., .#hostname)"
echo " [user@]host Target host, optionally with user"
echo ""
echo -e "Options:"
echo " --local-build Build locally instead of on remote"
echo " --boot Use 'boot' instead of 'switch' action"
echo ""
echo -e "Examples:"
echo " nixos-deploy .#hostname user@192.168.1.10"
echo " nixos-deploy --local-build .#hostname 192.168.1.10"
echo " nixos-deploy --boot .#hostname 192.168.1.10"
echo " nixos-deploy .#hostname 192.168.1.10 # uses current user"
exit 1
}
echo "Deploying $FLAKE_URI to $SSH_HOST as user $SSH_USER (action: $ACTION)"
while [[ $# -gt 0 ]]; do
case $1 in
--local-build)
LOCAL_BUILD=true
shift
;;
--boot)
ACTION="boot"
shift
;;
--help|-h)
show_usage
;;
-*)
echo -e "Unknown option: $1"
show_usage
;;
*)
if [[ -z "$FLAKE_URI" ]]; then
FLAKE_URI="$1"
elif [[ -z "$TARGET_HOST" ]]; then
TARGET_HOST="$1"
else
echo -e "Too many arguments"
show_usage
fi
shift
;;
esac
done
if [[ "$LOCAL_BUILD" != "true" ]]; then
GC_ROOT_PATH="/tmp/nixos-deploy-$SSH_HOST-$"
fi
if [[ -z "$FLAKE_URI" ]]; then
echo -e "flake-uri is required"
show_usage
fi
REBUILD_CMD="${nixos-rebuild}/bin/nixos-rebuild $ACTION --flake $FLAKE_URI --target-host $TARGET_HOST"
if [[ -z "$TARGET_HOST" ]]; then
echo -e "target host is required"
show_usage
fi
if [[ "$LOCAL_BUILD" == "true" ]]; then
echo -e "Building locally and deploying to remote host"
else
REBUILD_CMD="$REBUILD_CMD --build-host $SSH_HOST"
echo -e "Building on remote host"
fi
if [[ "$TARGET_HOST" == *"@"* ]]; then
SSH_USER="${TARGET_HOST%@*}"
SSH_HOST="${TARGET_HOST#*@}"
else
SSH_USER="$("${coreutils}/bin/whoami")"
SSH_HOST="$TARGET_HOST"
fi
if [[ "$SSH_USER" != "root" ]]; then
REBUILD_CMD="$REBUILD_CMD --use-remote-sudo"
echo -e "Using remote sudo for non-root user"
fi
echo "Deploying $FLAKE_URI to $SSH_HOST as user $SSH_USER (action: $ACTION)"
if [[ "$LOCAL_BUILD" != "true" ]]; then
GC_ROOT_PATH="/tmp/nixos-deploy-$SSH_HOST-$$"
fi
REBUILD_CMD="${nixos-rebuild}/bin/nixos-rebuild $ACTION --flake $FLAKE_URI --target-host $TARGET_HOST"
if [[ "$LOCAL_BUILD" == "true" ]]; then
echo -e "Building locally and deploying to remote host"
else
REBUILD_CMD="$REBUILD_CMD --build-host $SSH_HOST"
echo -e "Building on remote host"
fi
if [[ "$SSH_USER" != "root" ]]; then
REBUILD_CMD="$REBUILD_CMD --use-remote-sudo"
echo -e "Using remote sudo for non-root user"
fi
echo -e "Running: $REBUILD_CMD"
exec $REBUILD_CMD
EOF
chmod +x $out/bin/nixos-deploy
'';
meta = with lib; {
description = "Tool to deploy a NixOS flake to a remote host using nixos-rebuild";
license = licenses.mit;
maintainers = with maintainers; [ ];
platforms = platforms.unix;
};
}
echo -e "Running: $REBUILD_CMD"
exec $REBUILD_CMD
''