1package config
2
3import (
4 "context"
5 "encoding/json"
6 "fmt"
7 "io"
8 "log/slog"
9 "maps"
10 "os"
11 "os/exec"
12 "path/filepath"
13 "runtime"
14 "slices"
15 "strconv"
16 "strings"
17
18 "github.com/charmbracelet/catwalk/pkg/catwalk"
19 "github.com/charmbracelet/crush/internal/csync"
20 "github.com/charmbracelet/crush/internal/env"
21 "github.com/charmbracelet/crush/internal/fsext"
22 "github.com/charmbracelet/crush/internal/home"
23 "github.com/charmbracelet/crush/internal/log"
24 powernapConfig "github.com/charmbracelet/x/powernap/pkg/config"
25)
26
27const defaultCatwalkURL = "https://catwalk.charm.sh"
28
29// LoadReader config via io.Reader.
30func LoadReader(fd io.Reader) (*Config, error) {
31 data, err := io.ReadAll(fd)
32 if err != nil {
33 return nil, err
34 }
35
36 var config Config
37 err = json.Unmarshal(data, &config)
38 if err != nil {
39 return nil, err
40 }
41 return &config, err
42}
43
44// Load loads the configuration from the default paths.
45func Load(workingDir, dataDir string, debug bool) (*Config, error) {
46 configPaths := lookupConfigs(workingDir)
47
48 cfg, err := loadFromConfigPaths(configPaths)
49 if err != nil {
50 return nil, fmt.Errorf("failed to load config from paths %v: %w", configPaths, err)
51 }
52
53 cfg.dataConfigDir = GlobalConfigData()
54
55 cfg.setDefaults(workingDir, dataDir)
56
57 if debug {
58 cfg.Options.Debug = true
59 }
60
61 // Setup logs
62 log.Setup(
63 filepath.Join(cfg.Options.DataDirectory, "logs", fmt.Sprintf("%s.log", appName)),
64 cfg.Options.Debug,
65 )
66
67 if !isInsideWorktree() {
68 const depth = 2
69 const items = 100
70 slog.Warn("No git repository detected in working directory, will limit file walk operations", "depth", depth, "items", items)
71 assignIfNil(&cfg.Tools.Ls.MaxDepth, depth)
72 assignIfNil(&cfg.Tools.Ls.MaxItems, items)
73 assignIfNil(&cfg.Options.TUI.Completions.MaxDepth, depth)
74 assignIfNil(&cfg.Options.TUI.Completions.MaxItems, items)
75 }
76
77 // Load known providers, this loads the config from catwalk
78 providers, err := Providers(cfg)
79 if err != nil {
80 return nil, err
81 }
82 cfg.knownProviders = providers
83
84 env := env.New()
85 // Configure providers
86 valueResolver := NewShellVariableResolver(env)
87 cfg.resolver = valueResolver
88 if err := cfg.configureProviders(env, valueResolver, cfg.knownProviders); err != nil {
89 return nil, fmt.Errorf("failed to configure providers: %w", err)
90 }
91
92 if !cfg.IsConfigured() {
93 slog.Warn("No providers configured")
94 return cfg, nil
95 }
96
97 if err := cfg.configureSelectedModels(cfg.knownProviders); err != nil {
98 return nil, fmt.Errorf("failed to configure selected models: %w", err)
99 }
100 cfg.SetupAgents()
101 return cfg, nil
102}
103
104func PushPopCrushEnv() func() {
105 found := []string{}
106 for _, ev := range os.Environ() {
107 if strings.HasPrefix(ev, "CRUSH_") {
108 pair := strings.SplitN(ev, "=", 2)
109 if len(pair) != 2 {
110 continue
111 }
112 found = append(found, strings.TrimPrefix(pair[0], "CRUSH_"))
113 }
114 }
115 backups := make(map[string]string)
116 for _, ev := range found {
117 backups[ev] = os.Getenv(ev)
118 }
119
120 for _, ev := range found {
121 os.Setenv(ev, os.Getenv("CRUSH_"+ev))
122 }
123
124 restore := func() {
125 for k, v := range backups {
126 os.Setenv(k, v)
127 }
128 }
129 return restore
130}
131
132func (c *Config) configureProviders(env env.Env, resolver VariableResolver, knownProviders []catwalk.Provider) error {
133 knownProviderNames := make(map[string]bool)
134 restore := PushPopCrushEnv()
135 defer restore()
136 for _, p := range knownProviders {
137 knownProviderNames[string(p.ID)] = true
138 config, configExists := c.Providers.Get(string(p.ID))
139 // if the user configured a known provider we need to allow it to override a couple of parameters
140 if configExists {
141 if config.BaseURL != "" {
142 p.APIEndpoint = config.BaseURL
143 }
144 if config.APIKey != "" {
145 p.APIKey = config.APIKey
146 }
147 if len(config.Models) > 0 {
148 models := []catwalk.Model{}
149 seen := make(map[string]bool)
150
151 for _, model := range config.Models {
152 if seen[model.ID] {
153 continue
154 }
155 seen[model.ID] = true
156 if model.Name == "" {
157 model.Name = model.ID
158 }
159 models = append(models, model)
160 }
161 for _, model := range p.Models {
162 if seen[model.ID] {
163 continue
164 }
165 seen[model.ID] = true
166 if model.Name == "" {
167 model.Name = model.ID
168 }
169 models = append(models, model)
170 }
171
172 p.Models = models
173 }
174 }
175
176 headers := map[string]string{}
177 if len(p.DefaultHeaders) > 0 {
178 maps.Copy(headers, p.DefaultHeaders)
179 }
180 if len(config.ExtraHeaders) > 0 {
181 maps.Copy(headers, config.ExtraHeaders)
182 }
183 prepared := ProviderConfig{
184 ID: string(p.ID),
185 Name: p.Name,
186 BaseURL: p.APIEndpoint,
187 APIKey: p.APIKey,
188 Type: p.Type,
189 Disable: config.Disable,
190 SystemPromptPrefix: config.SystemPromptPrefix,
191 ExtraHeaders: headers,
192 ExtraBody: config.ExtraBody,
193 ExtraParams: make(map[string]string),
194 Models: p.Models,
195 }
196
197 switch p.ID {
198 // Handle specific providers that require additional configuration
199 case catwalk.InferenceProviderVertexAI:
200 if !hasVertexCredentials(env) {
201 if configExists {
202 slog.Warn("Skipping Vertex AI provider due to missing credentials")
203 c.Providers.Del(string(p.ID))
204 }
205 continue
206 }
207 prepared.ExtraParams["project"] = env.Get("VERTEXAI_PROJECT")
208 prepared.ExtraParams["location"] = env.Get("VERTEXAI_LOCATION")
209 case catwalk.InferenceProviderAzure:
210 endpoint, err := resolver.ResolveValue(p.APIEndpoint)
211 if err != nil || endpoint == "" {
212 if configExists {
213 slog.Warn("Skipping Azure provider due to missing API endpoint", "provider", p.ID, "error", err)
214 c.Providers.Del(string(p.ID))
215 }
216 continue
217 }
218 prepared.BaseURL = endpoint
219 prepared.ExtraParams["apiVersion"] = env.Get("AZURE_OPENAI_API_VERSION")
220 case catwalk.InferenceProviderBedrock:
221 if !hasAWSCredentials(env) {
222 if configExists {
223 slog.Warn("Skipping Bedrock provider due to missing AWS credentials")
224 c.Providers.Del(string(p.ID))
225 }
226 continue
227 }
228 prepared.ExtraParams["region"] = env.Get("AWS_REGION")
229 if prepared.ExtraParams["region"] == "" {
230 prepared.ExtraParams["region"] = env.Get("AWS_DEFAULT_REGION")
231 }
232 for _, model := range p.Models {
233 if !strings.HasPrefix(model.ID, "anthropic.") {
234 return fmt.Errorf("bedrock provider only supports anthropic models for now, found: %s", model.ID)
235 }
236 }
237 default:
238 // if the provider api or endpoint are missing we skip them
239 v, err := resolver.ResolveValue(p.APIKey)
240 if v == "" || err != nil {
241 if configExists {
242 slog.Warn("Skipping provider due to missing API key", "provider", p.ID)
243 c.Providers.Del(string(p.ID))
244 }
245 continue
246 }
247 }
248 c.Providers.Set(string(p.ID), prepared)
249 }
250
251 // validate the custom providers
252 for id, providerConfig := range c.Providers.Seq2() {
253 if knownProviderNames[id] {
254 continue
255 }
256
257 // Make sure the provider ID is set
258 providerConfig.ID = id
259 if providerConfig.Name == "" {
260 providerConfig.Name = id // Use ID as name if not set
261 }
262 // default to OpenAI if not set
263 if providerConfig.Type == "" {
264 providerConfig.Type = catwalk.TypeOpenAICompat
265 }
266 if !slices.Contains(catwalk.KnownProviderTypes(), providerConfig.Type) {
267 slog.Warn("Skipping custom provider due to unsupported provider type", "provider", id)
268 c.Providers.Del(id)
269 continue
270 }
271
272 if providerConfig.Disable {
273 slog.Debug("Skipping custom provider due to disable flag", "provider", id)
274 c.Providers.Del(id)
275 continue
276 }
277 if providerConfig.APIKey == "" {
278 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
279 }
280 if providerConfig.BaseURL == "" {
281 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id)
282 c.Providers.Del(id)
283 continue
284 }
285 if len(providerConfig.Models) == 0 {
286 slog.Warn("Skipping custom provider because the provider has no models", "provider", id)
287 c.Providers.Del(id)
288 continue
289 }
290 apiKey, err := resolver.ResolveValue(providerConfig.APIKey)
291 if apiKey == "" || err != nil {
292 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
293 }
294 baseURL, err := resolver.ResolveValue(providerConfig.BaseURL)
295 if baseURL == "" || err != nil {
296 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id, "error", err)
297 c.Providers.Del(id)
298 continue
299 }
300
301 c.Providers.Set(id, providerConfig)
302 }
303 return nil
304}
305
306func (c *Config) setDefaults(workingDir, dataDir string) {
307 c.workingDir = workingDir
308 if c.Options == nil {
309 c.Options = &Options{}
310 }
311 if c.Options.TUI == nil {
312 c.Options.TUI = &TUIOptions{}
313 }
314 if c.Options.ContextPaths == nil {
315 c.Options.ContextPaths = []string{}
316 }
317 if c.Options.MemoryPaths == nil {
318 crushConfigDir := filepath.Dir(GlobalConfig())
319 c.Options.MemoryPaths = []string{
320 filepath.Join(crushConfigDir, "CRUSH.md"),
321 filepath.Join(filepath.Dir(crushConfigDir), "AGENTS.md"),
322 }
323 }
324 c.Options.ContextPaths = append(c.Options.ContextPaths, c.Options.MemoryPaths...)
325
326 if dataDir != "" {
327 c.Options.DataDirectory = dataDir
328 } else if c.Options.DataDirectory == "" {
329 if path, ok := fsext.LookupClosest(workingDir, defaultDataDirectory); ok {
330 c.Options.DataDirectory = path
331 } else {
332 c.Options.DataDirectory = filepath.Join(workingDir, defaultDataDirectory)
333 }
334 }
335 if c.Providers == nil {
336 c.Providers = csync.NewMap[string, ProviderConfig]()
337 }
338 if c.Models == nil {
339 c.Models = make(map[SelectedModelType]SelectedModel)
340 }
341 if c.RecentModels == nil {
342 c.RecentModels = make(map[SelectedModelType][]SelectedModel)
343 }
344 if c.MCP == nil {
345 c.MCP = make(map[string]MCPConfig)
346 }
347 if c.LSP == nil {
348 c.LSP = make(map[string]LSPConfig)
349 }
350
351 // Apply defaults to LSP configurations
352 c.applyLSPDefaults()
353
354 // Add the default context paths if they are not already present
355 c.Options.ContextPaths = append(defaultContextPaths, c.Options.ContextPaths...)
356
357 // The ordering of contexts can be important; maybe the user's stuff should
358 // go at the bottom? Or top?
359 slices.Sort(c.Options.ContextPaths)
360 c.Options.ContextPaths = slices.Compact(c.Options.ContextPaths)
361
362 if str, ok := os.LookupEnv("CRUSH_DISABLE_PROVIDER_AUTO_UPDATE"); ok {
363 c.Options.DisableProviderAutoUpdate, _ = strconv.ParseBool(str)
364 }
365
366 if c.Options.Attribution == nil {
367 c.Options.Attribution = &Attribution{
368 TrailerStyle: TrailerStyleAssistedBy,
369 GeneratedWith: true,
370 }
371 } else if c.Options.Attribution.TrailerStyle == "" {
372 // Migrate deprecated co_authored_by or apply default
373 if c.Options.Attribution.CoAuthoredBy != nil {
374 if *c.Options.Attribution.CoAuthoredBy {
375 c.Options.Attribution.TrailerStyle = TrailerStyleCoAuthoredBy
376 } else {
377 c.Options.Attribution.TrailerStyle = TrailerStyleNone
378 }
379 } else {
380 c.Options.Attribution.TrailerStyle = TrailerStyleAssistedBy
381 }
382 }
383 if c.Options.InitializeAs == "" {
384 c.Options.InitializeAs = defaultInitializeAs
385 }
386}
387
388// applyLSPDefaults applies default values from powernap to LSP configurations
389func (c *Config) applyLSPDefaults() {
390 // Get powernap's default configuration
391 configManager := powernapConfig.NewManager()
392 configManager.LoadDefaults()
393
394 // Apply defaults to each LSP configuration
395 for name, cfg := range c.LSP {
396 // Try to get defaults from powernap based on name or command name.
397 base, ok := configManager.GetServer(name)
398 if !ok {
399 base, ok = configManager.GetServer(cfg.Command)
400 if !ok {
401 continue
402 }
403 }
404 if cfg.Options == nil {
405 cfg.Options = base.Settings
406 }
407 if cfg.InitOptions == nil {
408 cfg.InitOptions = base.InitOptions
409 }
410 if len(cfg.FileTypes) == 0 {
411 cfg.FileTypes = base.FileTypes
412 }
413 if len(cfg.RootMarkers) == 0 {
414 cfg.RootMarkers = base.RootMarkers
415 }
416 if cfg.Command == "" {
417 cfg.Command = base.Command
418 }
419 if len(cfg.Args) == 0 {
420 cfg.Args = base.Args
421 }
422 if len(cfg.Env) == 0 {
423 cfg.Env = base.Environment
424 }
425 // Update the config in the map
426 c.LSP[name] = cfg
427 }
428}
429
430func (c *Config) defaultModelSelection(knownProviders []catwalk.Provider) (largeModel SelectedModel, smallModel SelectedModel, err error) {
431 if len(knownProviders) == 0 && c.Providers.Len() == 0 {
432 err = fmt.Errorf("no providers configured, please configure at least one provider")
433 return largeModel, smallModel, err
434 }
435
436 // Use the first provider enabled based on the known providers order
437 // if no provider found that is known use the first provider configured
438 for _, p := range knownProviders {
439 providerConfig, ok := c.Providers.Get(string(p.ID))
440 if !ok || providerConfig.Disable {
441 continue
442 }
443 defaultLargeModel := c.GetModel(string(p.ID), p.DefaultLargeModelID)
444 if defaultLargeModel == nil {
445 err = fmt.Errorf("default large model %s not found for provider %s", p.DefaultLargeModelID, p.ID)
446 return largeModel, smallModel, err
447 }
448 largeModel = SelectedModel{
449 Provider: string(p.ID),
450 Model: defaultLargeModel.ID,
451 MaxTokens: defaultLargeModel.DefaultMaxTokens,
452 ReasoningEffort: defaultLargeModel.DefaultReasoningEffort,
453 }
454
455 defaultSmallModel := c.GetModel(string(p.ID), p.DefaultSmallModelID)
456 if defaultSmallModel == nil {
457 err = fmt.Errorf("default small model %s not found for provider %s", p.DefaultSmallModelID, p.ID)
458 return largeModel, smallModel, err
459 }
460 smallModel = SelectedModel{
461 Provider: string(p.ID),
462 Model: defaultSmallModel.ID,
463 MaxTokens: defaultSmallModel.DefaultMaxTokens,
464 ReasoningEffort: defaultSmallModel.DefaultReasoningEffort,
465 }
466 return largeModel, smallModel, err
467 }
468
469 enabledProviders := c.EnabledProviders()
470 slices.SortFunc(enabledProviders, func(a, b ProviderConfig) int {
471 return strings.Compare(a.ID, b.ID)
472 })
473
474 if len(enabledProviders) == 0 {
475 err = fmt.Errorf("no providers configured, please configure at least one provider")
476 return largeModel, smallModel, err
477 }
478
479 providerConfig := enabledProviders[0]
480 if len(providerConfig.Models) == 0 {
481 err = fmt.Errorf("provider %s has no models configured", providerConfig.ID)
482 return largeModel, smallModel, err
483 }
484 defaultLargeModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
485 largeModel = SelectedModel{
486 Provider: providerConfig.ID,
487 Model: defaultLargeModel.ID,
488 MaxTokens: defaultLargeModel.DefaultMaxTokens,
489 }
490 defaultSmallModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
491 smallModel = SelectedModel{
492 Provider: providerConfig.ID,
493 Model: defaultSmallModel.ID,
494 MaxTokens: defaultSmallModel.DefaultMaxTokens,
495 }
496 return largeModel, smallModel, err
497}
498
499func (c *Config) configureSelectedModels(knownProviders []catwalk.Provider) error {
500 defaultLarge, defaultSmall, err := c.defaultModelSelection(knownProviders)
501 if err != nil {
502 return fmt.Errorf("failed to select default models: %w", err)
503 }
504 large, small := defaultLarge, defaultSmall
505
506 largeModelSelected, largeModelConfigured := c.Models[SelectedModelTypeLarge]
507 if largeModelConfigured {
508 if largeModelSelected.Model != "" {
509 large.Model = largeModelSelected.Model
510 }
511 if largeModelSelected.Provider != "" {
512 large.Provider = largeModelSelected.Provider
513 }
514 model := c.GetModel(large.Provider, large.Model)
515 if model == nil {
516 large = defaultLarge
517 // override the model type to large
518 err := c.UpdatePreferredModel(SelectedModelTypeLarge, large)
519 if err != nil {
520 return fmt.Errorf("failed to update preferred large model: %w", err)
521 }
522 } else {
523 if largeModelSelected.MaxTokens > 0 {
524 large.MaxTokens = largeModelSelected.MaxTokens
525 } else {
526 large.MaxTokens = model.DefaultMaxTokens
527 }
528 if largeModelSelected.ReasoningEffort != "" {
529 large.ReasoningEffort = largeModelSelected.ReasoningEffort
530 }
531 large.Think = largeModelSelected.Think
532 if largeModelSelected.Temperature != nil {
533 large.Temperature = largeModelSelected.Temperature
534 }
535 if largeModelSelected.TopP != nil {
536 large.TopP = largeModelSelected.TopP
537 }
538 if largeModelSelected.TopK != nil {
539 large.TopK = largeModelSelected.TopK
540 }
541 if largeModelSelected.FrequencyPenalty != nil {
542 large.FrequencyPenalty = largeModelSelected.FrequencyPenalty
543 }
544 if largeModelSelected.PresencePenalty != nil {
545 large.PresencePenalty = largeModelSelected.PresencePenalty
546 }
547 }
548 }
549 smallModelSelected, smallModelConfigured := c.Models[SelectedModelTypeSmall]
550 if smallModelConfigured {
551 if smallModelSelected.Model != "" {
552 small.Model = smallModelSelected.Model
553 }
554 if smallModelSelected.Provider != "" {
555 small.Provider = smallModelSelected.Provider
556 }
557
558 model := c.GetModel(small.Provider, small.Model)
559 if model == nil {
560 small = defaultSmall
561 // override the model type to small
562 err := c.UpdatePreferredModel(SelectedModelTypeSmall, small)
563 if err != nil {
564 return fmt.Errorf("failed to update preferred small model: %w", err)
565 }
566 } else {
567 if smallModelSelected.MaxTokens > 0 {
568 small.MaxTokens = smallModelSelected.MaxTokens
569 } else {
570 small.MaxTokens = model.DefaultMaxTokens
571 }
572 if smallModelSelected.ReasoningEffort != "" {
573 small.ReasoningEffort = smallModelSelected.ReasoningEffort
574 }
575 if smallModelSelected.Temperature != nil {
576 small.Temperature = smallModelSelected.Temperature
577 }
578 if smallModelSelected.TopP != nil {
579 small.TopP = smallModelSelected.TopP
580 }
581 if smallModelSelected.TopK != nil {
582 small.TopK = smallModelSelected.TopK
583 }
584 if smallModelSelected.FrequencyPenalty != nil {
585 small.FrequencyPenalty = smallModelSelected.FrequencyPenalty
586 }
587 if smallModelSelected.PresencePenalty != nil {
588 small.PresencePenalty = smallModelSelected.PresencePenalty
589 }
590 small.Think = smallModelSelected.Think
591 }
592 }
593 c.Models[SelectedModelTypeLarge] = large
594 c.Models[SelectedModelTypeSmall] = small
595 return nil
596}
597
598// lookupConfigs searches config files recursively from CWD up to FS root
599func lookupConfigs(cwd string) []string {
600 // prepend default config paths
601 configPaths := []string{
602 GlobalConfig(),
603 GlobalConfigData(),
604 }
605
606 configNames := []string{appName + ".json", "." + appName + ".json"}
607
608 foundConfigs, err := fsext.Lookup(cwd, configNames...)
609 if err != nil {
610 // returns at least default configs
611 return configPaths
612 }
613
614 // reverse order so last config has more priority
615 slices.Reverse(foundConfigs)
616
617 return append(configPaths, foundConfigs...)
618}
619
620func loadFromConfigPaths(configPaths []string) (*Config, error) {
621 var configs []io.Reader
622
623 for _, path := range configPaths {
624 fd, err := os.Open(path)
625 if err != nil {
626 if os.IsNotExist(err) {
627 continue
628 }
629 return nil, fmt.Errorf("failed to open config file %s: %w", path, err)
630 }
631 defer fd.Close()
632
633 configs = append(configs, fd)
634 }
635
636 return loadFromReaders(configs)
637}
638
639func loadFromReaders(readers []io.Reader) (*Config, error) {
640 if len(readers) == 0 {
641 return &Config{}, nil
642 }
643
644 merged, err := Merge(readers)
645 if err != nil {
646 return nil, fmt.Errorf("failed to merge configuration readers: %w", err)
647 }
648
649 return LoadReader(merged)
650}
651
652func hasVertexCredentials(env env.Env) bool {
653 hasProject := env.Get("VERTEXAI_PROJECT") != ""
654 hasLocation := env.Get("VERTEXAI_LOCATION") != ""
655 return hasProject && hasLocation
656}
657
658func hasAWSCredentials(env env.Env) bool {
659 if env.Get("AWS_BEARER_TOKEN_BEDROCK") != "" {
660 return true
661 }
662
663 if env.Get("AWS_ACCESS_KEY_ID") != "" && env.Get("AWS_SECRET_ACCESS_KEY") != "" {
664 return true
665 }
666
667 if env.Get("AWS_PROFILE") != "" || env.Get("AWS_DEFAULT_PROFILE") != "" {
668 return true
669 }
670
671 if env.Get("AWS_REGION") != "" || env.Get("AWS_DEFAULT_REGION") != "" {
672 return true
673 }
674
675 if env.Get("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI") != "" ||
676 env.Get("AWS_CONTAINER_CREDENTIALS_FULL_URI") != "" {
677 return true
678 }
679
680 if _, err := os.Stat(filepath.Join(home.Dir(), ".aws/credentials")); err == nil {
681 return true
682 }
683
684 return false
685}
686
687// GlobalConfig returns the global configuration file path for the application.
688func GlobalConfig() string {
689 xdgConfigHome := os.Getenv("XDG_CONFIG_HOME")
690 if xdgConfigHome != "" {
691 return filepath.Join(xdgConfigHome, appName, fmt.Sprintf("%s.json", appName))
692 }
693
694 return filepath.Join(home.Dir(), ".config", appName, fmt.Sprintf("%s.json", appName))
695}
696
697// GlobalConfigData returns the path to the main data directory for the application.
698// this config is used when the app overrides configurations instead of updating the global config.
699func GlobalConfigData() string {
700 xdgDataHome := os.Getenv("XDG_DATA_HOME")
701 if xdgDataHome != "" {
702 return filepath.Join(xdgDataHome, appName, fmt.Sprintf("%s.json", appName))
703 }
704
705 // return the path to the main data directory
706 // for windows, it should be in `%LOCALAPPDATA%/crush/`
707 // for linux and macOS, it should be in `$HOME/.local/share/crush/`
708 if runtime.GOOS == "windows" {
709 localAppData := os.Getenv("LOCALAPPDATA")
710 if localAppData == "" {
711 localAppData = filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local")
712 }
713 return filepath.Join(localAppData, appName, fmt.Sprintf("%s.json", appName))
714 }
715
716 return filepath.Join(home.Dir(), ".local", "share", appName, fmt.Sprintf("%s.json", appName))
717}
718
719func assignIfNil[T any](ptr **T, val T) {
720 if *ptr == nil {
721 *ptr = &val
722 }
723}
724
725func isInsideWorktree() bool {
726 bts, err := exec.CommandContext(
727 context.Background(),
728 "git", "rev-parse",
729 "--is-inside-work-tree",
730 ).CombinedOutput()
731 return err == nil && strings.TrimSpace(string(bts)) == "true"
732}