wehub-resource-sync
125 lines
3.3 KiB
Go
125 lines
3.3 KiB
Go
package main
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"slices"
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"loov.dev/lensm/internal/atomicfile"
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"loov.dev/lensm/internal/comments"
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"loov.dev/lensm/internal/syntax"
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)
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type AppSettings struct {
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SyntaxStyle string `json:"syntax_style"`
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Dark bool `json:"dark,omitempty"`
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ShowNativeAsm bool `json:"show_native_asm"`
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ShowAsmHelp bool `json:"show_asm_help"`
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TextSize int `json:"text_size,omitempty"`
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SidebarRatio float32 `json:"sidebar_ratio,omitempty"`
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LastPath string `json:"last_path,omitempty"`
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OpenTabs []string `json:"open_tabs,omitempty"`
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ActiveTab string `json:"active_tab,omitempty"`
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}
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func DefaultAppSettings() AppSettings {
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return AppSettings{
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SyntaxStyle: syntax.StyleGoLand,
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ShowNativeAsm: true,
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ShowAsmHelp: true,
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TextSize: 12,
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SidebarRatio: 0.15,
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}
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}
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func LoadAppSettings() (AppSettings, error) {
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settings := DefaultAppSettings()
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path, err := appSettingsPath()
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if err != nil {
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return settings, err
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}
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data, err := os.ReadFile(path)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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return settings, nil
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}
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return settings, err
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}
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if err := json.Unmarshal(data, &settings); err != nil {
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// Move the unreadable file aside: callers proceed with defaults,
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// and the next save would otherwise silently replace every
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// preference the user had.
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backup := path + ".corrupt"
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if renameErr := os.Rename(path, backup); renameErr == nil {
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return DefaultAppSettings(), fmt.Errorf("decode %s (moved to %s): %w", path, backup, err)
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}
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return DefaultAppSettings(), fmt.Errorf("decode %s: %w", path, err)
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}
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settings.SyntaxStyle = syntax.NormalizeStyle(settings.SyntaxStyle)
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if settings.TextSize <= 0 {
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settings.TextSize = DefaultAppSettings().TextSize
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}
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if settings.SidebarRatio <= 0 || settings.SidebarRatio >= 1 {
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settings.SidebarRatio = DefaultAppSettings().SidebarRatio
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}
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settings.LastPath = comments.CleanPath(settings.LastPath)
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settings.OpenTabs = cleanFuncNames(settings.OpenTabs)
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if settings.ActiveTab != "" && !slices.Contains(settings.OpenTabs, settings.ActiveTab) {
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settings.ActiveTab = ""
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}
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return settings, nil
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}
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func SaveAppSettings(settings AppSettings) error {
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settings.SyntaxStyle = syntax.NormalizeStyle(settings.SyntaxStyle)
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if settings.TextSize <= 0 {
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settings.TextSize = DefaultAppSettings().TextSize
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}
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settings.LastPath = comments.CleanPath(settings.LastPath)
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settings.OpenTabs = cleanFuncNames(settings.OpenTabs)
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if settings.ActiveTab != "" && !slices.Contains(settings.OpenTabs, settings.ActiveTab) {
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settings.ActiveTab = ""
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}
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path, err := appSettingsPath()
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if err != nil {
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return err
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}
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if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
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return err
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}
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data, err := json.MarshalIndent(settings, "", " ")
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if err != nil {
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return err
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}
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data = append(data, '\n')
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return atomicfile.Write(path, data, 0o644)
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}
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func appSettingsPath() (string, error) {
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dir, err := os.UserConfigDir()
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if err != nil {
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return "", err
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}
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return filepath.Join(dir, "lensm", "config.json"), nil
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}
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func cleanFuncNames(names []string) []string {
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if len(names) == 0 {
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return nil
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}
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out := make([]string, 0, len(names))
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seen := map[string]bool{}
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for _, name := range names {
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if name == "" || seen[name] {
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continue
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}
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seen[name] = true
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out = append(out, name)
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}
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return out
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}
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