61 lines
1.8 KiB
Bash
Executable File
61 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -Euo pipefail
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VERBOSE=false
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SHOW_TRACE_OPT=""
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# Parse options
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#
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if [ "$#" -gt 0 ]; then
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if [[ "$1" == "-v" || "$1" == "--verbose" ]]; then
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VERBOSE=true
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SHOW_TRACE_OPT="--show-trace"
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shift # Remove the verbose flag from arguments
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fi
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fi
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# Check if 'nixos-rebuild' command is available
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if ! command -v nixos-rebuild > /dev/null; then
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echo "ERROR: 'nixos-rebuild' command not found. Please ensure it is installed and in your PATH." >&2
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exit 1
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fi
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# Determine the absolute directory where the script itself is located
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SCRIPT_DIR=$(dirname "$(readlink -f "$0")")
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# Construct the absolute path to the configuration file
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# and resolve it to a canonical path
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CONFIG_PATH=$(readlink -f "$SCRIPT_DIR/../example/configuration.nix")
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CHANNEL=$(cat "$SCRIPT_DIR/../example/channel")
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# Verify that the CONFIG_PATH exists and is a regular file
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if [ ! -f "$CONFIG_PATH" ]; then
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echo "ERROR: Configuration file not found at '$CONFIG_PATH'." >&2
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exit 1
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fi
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echo "INFO: Attempting dry-build for using configuration '$CONFIG_PATH'..."
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if [ "$VERBOSE" = true ]; then
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echo "INFO: Verbose mode enabled, --show-trace will be used."
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fi
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# Execute nixos-rebuild dry-build
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# Store the output and error streams, and the exit code
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NIX_OUTPUT_ERR=$(nixos-rebuild dry-build $SHOW_TRACE_OPT -I nixpkgs=$CHANNEL/nixexprs.tar.xz -I nixos-config="$CONFIG_PATH" 2>&1)
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NIX_EXIT_STATUS=$?
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# Check the exit status
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if [ "$NIX_EXIT_STATUS" -eq 0 ]; then
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echo "INFO: Dry-build for completed successfully."
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if [ "$VERBOSE" = true ]; then
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echo "Output from nixos-rebuild:"
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echo "$NIX_OUTPUT_ERR"
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fi
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exit 0
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else
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echo "ERROR: Dry-build for failed. 'nixos-rebuild' exited with status $NIX_EXIT_STATUS." >&2
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echo "Output from nixos-rebuild:" >&2
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echo "$NIX_OUTPUT_ERR" >&2
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exit "$NIX_EXIT_STATUS"
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fi
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