mirror of
https://github.com/nix-community/nixos-generators.git
synced 2024-11-25 19:07:59 +03:00
93e10d0aea
* WIP: eval target
* rename nixos-build to nixos-generate
* rename target to format
* allow to pass arbitrary format paths
* add --help option
* add --list option
* port the rest of the formats
* add short options
* be more precise with the file selection
* use new trick I learned
* support the --run option
for the no-gui version:
./nixos-generate --run -f vm-no-gui
* document
* fixup! port the rest of the formats
* fix kexec-bundle
104 lines
1.9 KiB
Bash
Executable File
104 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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## Configuration
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libexec_dir="${0%/*}"
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configuration_path=${NIX_CONFIG:-$libexec_dir/config.nix}
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format_dir=$libexec_dir/formats
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format_path=
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run=
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## Functions
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showUsage() {
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cat <<USAGE
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Usage: $0 [options]
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Options:
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* --help: shows this help
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* -c, --configuration PATH:
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select the nixos configuration to build. Default: $configuration_path
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* -f, --format NAME: select one of the pre-determined formats
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* --format-path PATH: pass a custom format
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* --list: list the available built-in formats
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* --run: runs the configuration in a VM
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only works for the "vm" and "vm-no-gui" formats
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USAGE
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}
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listFormats() {
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for format in "$format_dir"/*.nix; do
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basename "$format" ".nix"
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done
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}
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abort() {
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echo "aborted: $*" >&2
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exit 1
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}
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## Main ##
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-c | --configuration)
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configuration_path=$2
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shift
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;;
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-f | --format)
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format_path=$format_dir/$2.nix
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shift
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;;
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--format-path)
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format_path=$2
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shift
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;;
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--help)
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showUsage
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exit
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;;
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--list)
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listFormats
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exit
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;;
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--run)
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run=1
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# default to the VM format
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if [[ -z $format_path ]]; then
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format_path=$format_dir/vm.nix
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fi
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;;
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*)
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abort "unknown option $1"
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;;
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esac
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shift
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done
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if [[ -z $format_path ]]; then
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abort "missing format. use --help for more details"
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fi
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if [[ ! -e $format_path ]]; then
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abort "format '$format_path' not found"
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fi
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args=(
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"$libexec_dir/eval-format.nix"
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--arg configuration "$configuration_path"
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--arg formatConfig "$format_path"
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)
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formatAttr=$(nix-instantiate "${args[@]}" --eval --json -A config.formatAttr | jq -r .)
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out=$(nix-build "${args[@]}" --no-out-link -A "config.system.build.$formatAttr")
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if [[ -z $run ]]; then
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# show the first file
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find "$out" -type f -print -quit
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else
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"$out/bin/run-nixos-vm"
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fi
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