142 lines
3.8 KiB
Go
142 lines
3.8 KiB
Go
// Package config loads embedded defaults and optionally merges a user
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// overlay from ~/.config/archduino/overlay.yaml.
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package config
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import (
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_ "embed"
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"fmt"
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"os"
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"path/filepath"
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"gopkg.in/yaml.v3"
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)
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//go:embed defaults.yaml
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var defaultsYAML []byte
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type Packages struct {
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Base []string `yaml:"base"`
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}
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type ArduinoCLIConfig struct {
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Version string `yaml:"version"`
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URL string `yaml:"url"`
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Cores []string `yaml:"cores"`
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}
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type ZshPlugin struct {
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Name string `yaml:"name"`
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Repo string `yaml:"repo"`
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}
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type ZshConfig struct {
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OhMyZshRepo string `yaml:"oh_my_zsh_repo"`
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Plugins []ZshPlugin `yaml:"plugins"`
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}
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type ZellijConfig struct {
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ConfigURL string `yaml:"config_url"`
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}
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type ThemesConfig struct {
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Source string `yaml:"source"`
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}
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type ShellConfigBlock struct {
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Name string `yaml:"name"`
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File string `yaml:"file"`
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Content string `yaml:"content"`
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}
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type ShellConfigSection struct {
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Blocks []ShellConfigBlock `yaml:"blocks"`
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}
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// Config is the fully-resolved runtime configuration.
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type Config struct {
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Version int `yaml:"version"`
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ExtraPackages []string `yaml:"extra_packages"`
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DisabledModules []string `yaml:"disabled_modules"`
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ThemeOverrides map[string]string `yaml:"theme_overrides"`
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Packages Packages `yaml:"packages"`
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Fonts []string `yaml:"fonts"`
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ArduinoCLI ArduinoCLIConfig `yaml:"arduino_cli"`
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Zsh ZshConfig `yaml:"zsh"`
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Zellij ZellijConfig `yaml:"zellij"`
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Themes ThemesConfig `yaml:"themes"`
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ShellConfig ShellConfigSection `yaml:"shell_config"`
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}
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const currentVersion = 1
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// Load returns defaults merged with the overlay at overlayPath (if present).
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// If overlayPath is "", the default location (~/.config/archduino/overlay.yaml)
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// is used. A missing overlay is not an error.
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func Load(overlayPath string) (Config, error) {
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var cfg Config
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if err := yaml.Unmarshal(defaultsYAML, &cfg); err != nil {
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return Config{}, fmt.Errorf("parse embedded defaults: %w", err)
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}
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if overlayPath == "" {
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home, err := os.UserHomeDir()
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if err != nil {
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return cfg, nil
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}
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overlayPath = filepath.Join(home, ".config", "archduino", "overlay.yaml")
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}
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data, err := os.ReadFile(overlayPath)
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if err != nil {
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if os.IsNotExist(err) {
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return cfg, nil
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}
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return Config{}, fmt.Errorf("read overlay %s: %w", overlayPath, err)
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}
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var overlay Config
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if err := yaml.Unmarshal(data, &overlay); err != nil {
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return Config{}, fmt.Errorf("parse overlay %s: %w", overlayPath, err)
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}
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if overlay.Version != 0 && overlay.Version != currentVersion {
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return Config{}, fmt.Errorf("overlay %s: unsupported version %d (want %d)", overlayPath, overlay.Version, currentVersion)
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}
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return merge(cfg, overlay), nil
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}
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func merge(base, over Config) Config {
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out := base
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if len(over.ExtraPackages) > 0 {
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out.ExtraPackages = append(append([]string{}, base.ExtraPackages...), over.ExtraPackages...)
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}
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if len(over.DisabledModules) > 0 {
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out.DisabledModules = append(append([]string{}, base.DisabledModules...), over.DisabledModules...)
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}
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if len(over.ThemeOverrides) > 0 {
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merged := make(map[string]string, len(base.ThemeOverrides)+len(over.ThemeOverrides))
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for k, v := range base.ThemeOverrides {
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merged[k] = v
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}
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for k, v := range over.ThemeOverrides {
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merged[k] = v
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}
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out.ThemeOverrides = merged
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}
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if len(over.Packages.Base) > 0 {
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out.Packages = over.Packages
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}
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if len(over.Fonts) > 0 {
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out.Fonts = over.Fonts
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}
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if over.ArduinoCLI.Version != "" {
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out.ArduinoCLI = over.ArduinoCLI
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}
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if over.Zsh.OhMyZshRepo != "" {
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out.Zsh = over.Zsh
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}
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if over.Zellij.ConfigURL != "" {
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out.Zellij = over.Zellij
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}
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if over.Themes.Source != "" {
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out.Themes = over.Themes
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}
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if len(over.ShellConfig.Blocks) > 0 {
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out.ShellConfig = over.ShellConfig
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}
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return out
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}
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