1package config
2
3import (
4 "cmp"
5 "context"
6 "encoding/json"
7 "fmt"
8 "log/slog"
9 "maps"
10 "os"
11 "os/exec"
12 "path/filepath"
13 "regexp"
14 "runtime"
15 "slices"
16 "strconv"
17 "strings"
18 "testing"
19
20 "charm.land/catwalk/pkg/catwalk"
21 "github.com/charmbracelet/crush/internal/agent/hyper"
22 "github.com/charmbracelet/crush/internal/csync"
23 "github.com/charmbracelet/crush/internal/env"
24 "github.com/charmbracelet/crush/internal/filepathext"
25 "github.com/charmbracelet/crush/internal/fsext"
26 "github.com/charmbracelet/crush/internal/home"
27 powernapConfig "github.com/charmbracelet/x/powernap/pkg/config"
28 "github.com/qjebbs/go-jsons"
29)
30
31const defaultCatwalkURL = "https://catwalk.charm.land"
32
33// Load loads the configuration from the default paths and returns a
34// ConfigStore that owns both the pure-data Config and all runtime state.
35func Load(workingDir, dataDir string, debug bool) (*ConfigStore, error) {
36 configPaths := lookupConfigs(workingDir)
37
38 cfg, loadedPaths, err := loadFromConfigPaths(configPaths)
39 if err != nil {
40 return nil, fmt.Errorf("failed to load config from paths %v: %w", configPaths, err)
41 }
42
43 cfg.setDefaults(workingDir, dataDir)
44
45 store := &ConfigStore{
46 config: cfg,
47 workingDir: workingDir,
48 globalDataPath: GlobalConfigData(),
49 workspacePath: filepath.Join(cfg.Options.DataDirectory, fmt.Sprintf("%s.json", appName)),
50 loadedPaths: loadedPaths,
51 }
52
53 if debug {
54 cfg.Options.Debug = true
55 }
56
57 // Load workspace config last so it has highest priority.
58 if wsData, err := os.ReadFile(store.workspacePath); err == nil && len(wsData) > 0 {
59 if !json.Valid(wsData) {
60 return nil, fmt.Errorf("invalid JSON in config file %s", store.workspacePath)
61 }
62 merged, mergeErr := loadFromBytes(append([][]byte{mustMarshalConfig(cfg)}, wsData))
63 if mergeErr == nil {
64 // Preserve defaults that setDefaults already applied.
65 dataDir := cfg.Options.DataDirectory
66 *cfg = *merged
67 cfg.setDefaults(workingDir, dataDir)
68 store.config = cfg
69 store.loadedPaths = append(store.loadedPaths, store.workspacePath)
70 }
71 }
72
73 // Validate hooks after all config merging is complete so workspace
74 // hooks also get their matcher regexes compiled.
75 if err := cfg.ValidateHooks(); err != nil {
76 return nil, fmt.Errorf("invalid hook configuration: %w", err)
77 }
78
79 if !isInsideWorktree() {
80 const depth = 2
81 const items = 100
82 slog.Warn("No git repository detected in working directory, will limit file walk operations", "depth", depth, "items", items)
83 assignIfNil(&cfg.Tools.Ls.MaxDepth, depth)
84 assignIfNil(&cfg.Tools.Ls.MaxItems, items)
85 assignIfNil(&cfg.Options.TUI.Completions.MaxDepth, depth)
86 assignIfNil(&cfg.Options.TUI.Completions.MaxItems, items)
87 }
88
89 if isAppleTerminal() {
90 slog.Warn("Detected Apple Terminal, enabling transparent mode")
91 assignIfNil(&cfg.Options.TUI.Transparent, true)
92 }
93
94 // Load known providers, this loads the config from catwalk
95 providers, err := Providers(cfg)
96 if err != nil {
97 return nil, err
98 }
99 store.knownProviders = providers
100
101 env := env.New()
102 // Configure providers
103 valueResolver := NewShellVariableResolver(env)
104 store.resolver = valueResolver
105
106 // Disable auto-reload during initial load to prevent nested calls from
107 // config-modifying operations inside configureProviders.
108 store.autoReloadDisabled = true
109 defer func() { store.autoReloadDisabled = false }()
110
111 if err := cfg.configureProviders(store, env, valueResolver, store.knownProviders); err != nil {
112 return nil, fmt.Errorf("failed to configure providers: %w", err)
113 }
114
115 if !cfg.IsConfigured() {
116 slog.Warn("No providers configured")
117 return store, nil
118 }
119
120 if err := configureSelectedModels(store, store.knownProviders, true); err != nil {
121 return nil, fmt.Errorf("failed to configure selected models: %w", err)
122 }
123 store.SetupAgents()
124
125 // Capture initial staleness snapshot
126 store.captureStalenessSnapshot(loadedPaths)
127
128 return store, nil
129}
130
131// mustMarshalConfig marshals the config to JSON bytes, returning empty JSON on
132// error.
133func mustMarshalConfig(cfg *Config) []byte {
134 data, err := json.Marshal(cfg)
135 if err != nil {
136 return []byte("{}")
137 }
138 return data
139}
140
141func PushPopCrushEnv() func() {
142 var found []string
143 for _, ev := range os.Environ() {
144 if strings.HasPrefix(ev, "CRUSH_") {
145 pair := strings.SplitN(ev, "=", 2)
146 if len(pair) != 2 {
147 continue
148 }
149 found = append(found, strings.TrimPrefix(pair[0], "CRUSH_"))
150 }
151 }
152 backups := make(map[string]string)
153 for _, ev := range found {
154 backups[ev] = os.Getenv(ev)
155 }
156
157 for _, ev := range found {
158 os.Setenv(ev, os.Getenv("CRUSH_"+ev))
159 }
160
161 restore := func() {
162 for k, v := range backups {
163 os.Setenv(k, v)
164 }
165 }
166 return restore
167}
168
169func (c *Config) configureProviders(store *ConfigStore, env env.Env, resolver VariableResolver, knownProviders []catwalk.Provider) error {
170 knownProviderNames := make(map[string]bool)
171 restore := PushPopCrushEnv()
172 defer restore()
173
174 // When disable_default_providers is enabled, skip all default/embedded
175 // providers entirely. Users must fully specify any providers they want.
176 // We skip to the custom provider validation loop which handles all
177 // user-configured providers uniformly.
178 if c.Options.DisableDefaultProviders {
179 knownProviders = nil
180 }
181
182 for _, p := range knownProviders {
183 knownProviderNames[string(p.ID)] = true
184 config, configExists := c.Providers.Get(string(p.ID))
185 // if the user configured a known provider we need to allow it to override a couple of parameters
186 if configExists {
187 if config.BaseURL != "" {
188 p.APIEndpoint = config.BaseURL
189 }
190 if config.APIKey != "" {
191 p.APIKey = config.APIKey
192 }
193 if len(config.Models) > 0 {
194 models := []catwalk.Model{}
195 seen := make(map[string]bool)
196
197 for _, model := range config.Models {
198 if seen[model.ID] {
199 continue
200 }
201 seen[model.ID] = true
202 if model.Name == "" {
203 model.Name = model.ID
204 }
205 models = append(models, model)
206 }
207 for _, model := range p.Models {
208 if seen[model.ID] {
209 continue
210 }
211 seen[model.ID] = true
212 if model.Name == "" {
213 model.Name = model.ID
214 }
215 models = append(models, model)
216 }
217
218 p.Models = models
219 }
220 }
221
222 headers := map[string]string{}
223 if len(p.DefaultHeaders) > 0 {
224 maps.Copy(headers, p.DefaultHeaders)
225 }
226 if len(config.ExtraHeaders) > 0 {
227 maps.Copy(headers, config.ExtraHeaders)
228 }
229 // Provider headers use the same error contract as MCP headers:
230 // a failing $(...) aborts the provider load with a clear
231 // message, and a header that resolves to the empty string
232 // (unset bare $VAR under lenient nounset, $(echo), or literal
233 // "") is dropped from the outgoing request.
234 for k, v := range headers {
235 resolved, err := resolver.ResolveValue(v)
236 if err != nil {
237 return fmt.Errorf("resolving provider %s header %q: %w", p.ID, k, err)
238 }
239 if resolved == "" {
240 delete(headers, k)
241 continue
242 }
243 headers[k] = resolved
244 }
245 prepared := ProviderConfig{
246 ID: string(p.ID),
247 Name: p.Name,
248 BaseURL: p.APIEndpoint,
249 APIKey: p.APIKey,
250 APIKeyTemplate: p.APIKey, // Store original template for re-resolution
251 OAuthToken: config.OAuthToken,
252 Type: p.Type,
253 Disable: config.Disable,
254 SystemPromptPrefix: config.SystemPromptPrefix,
255 ExtraHeaders: headers,
256 ExtraBody: config.ExtraBody,
257 ExtraParams: make(map[string]string),
258 Models: p.Models,
259 }
260
261 switch {
262 case p.ID == catwalk.InferenceProviderAnthropic && config.OAuthToken != nil:
263 // Claude Code subscription is not supported anymore. Remove to show onboarding.
264 if !store.reloadInProgress {
265 store.RemoveConfigField(ScopeGlobal, "providers.anthropic")
266 }
267 c.Providers.Del(string(p.ID))
268 continue
269 case p.ID == catwalk.InferenceProviderCopilot && config.OAuthToken != nil:
270 prepared.SetupGitHubCopilot()
271 }
272
273 switch p.ID {
274 // Handle specific providers that require additional configuration
275 case catwalk.InferenceProviderVertexAI:
276 var (
277 project = env.Get("VERTEXAI_PROJECT")
278 location = env.Get("VERTEXAI_LOCATION")
279 )
280 if project == "" || location == "" {
281 if configExists {
282 slog.Warn("Skipping Vertex AI provider due to missing credentials")
283 c.Providers.Del(string(p.ID))
284 }
285 continue
286 }
287 prepared.ExtraParams["project"] = project
288 prepared.ExtraParams["location"] = location
289 case catwalk.InferenceProviderAzure:
290 endpoint, err := resolver.ResolveValue(p.APIEndpoint)
291 if err != nil || endpoint == "" {
292 if configExists {
293 slog.Warn("Skipping Azure provider due to missing API endpoint", "provider", p.ID, "error", err)
294 c.Providers.Del(string(p.ID))
295 }
296 continue
297 }
298 prepared.BaseURL = endpoint
299 prepared.ExtraParams["apiVersion"] = env.Get("AZURE_OPENAI_API_VERSION")
300 case catwalk.InferenceProviderBedrock:
301 if !hasAWSCredentials(env) {
302 if configExists {
303 slog.Warn("Skipping Bedrock provider due to missing AWS credentials")
304 c.Providers.Del(string(p.ID))
305 }
306 continue
307 }
308 prepared.ExtraParams["region"] = env.Get("AWS_REGION")
309 if prepared.ExtraParams["region"] == "" {
310 prepared.ExtraParams["region"] = env.Get("AWS_DEFAULT_REGION")
311 }
312 for _, model := range p.Models {
313 if !strings.HasPrefix(model.ID, "anthropic.") {
314 return fmt.Errorf("bedrock provider only supports anthropic models for now, found: %s", model.ID)
315 }
316 }
317 case catwalk.InferenceProvider("hyper"):
318 if apiKey := env.Get("HYPER_API_KEY"); apiKey != "" {
319 prepared.APIKey = apiKey
320 prepared.APIKeyTemplate = apiKey
321 } else {
322 v, err := resolver.ResolveValue(p.APIKey)
323 if v == "" || err != nil {
324 if configExists {
325 slog.Warn("Skipping Hyper provider due to missing API key", "provider", p.ID)
326 c.Providers.Del(string(p.ID))
327 }
328 continue
329 }
330 }
331 default:
332 // if the provider api or endpoint are missing we skip them
333 v, err := resolver.ResolveValue(p.APIKey)
334 if v == "" || err != nil {
335 if configExists {
336 slog.Warn("Skipping provider due to missing API key", "provider", p.ID)
337 c.Providers.Del(string(p.ID))
338 }
339 continue
340 }
341 }
342 c.Providers.Set(string(p.ID), prepared)
343 }
344
345 // validate the custom providers
346 for id, providerConfig := range c.Providers.Seq2() {
347 if knownProviderNames[id] {
348 continue
349 }
350
351 // Make sure the provider ID is set
352 providerConfig.ID = id
353 providerConfig.Name = cmp.Or(providerConfig.Name, id) // Use ID as name if not set
354 // default to OpenAI if not set
355 providerConfig.Type = cmp.Or(providerConfig.Type, catwalk.TypeOpenAICompat)
356 if !slices.Contains(catwalk.KnownProviderTypes(), providerConfig.Type) && providerConfig.Type != hyper.Name {
357 slog.Warn("Skipping custom provider due to unsupported provider type", "provider", id)
358 c.Providers.Del(id)
359 continue
360 }
361
362 if providerConfig.Disable {
363 slog.Debug("Skipping custom provider due to disable flag", "provider", id)
364 c.Providers.Del(id)
365 continue
366 }
367 if providerConfig.APIKey == "" {
368 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
369 }
370 if providerConfig.BaseURL == "" {
371 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id)
372 c.Providers.Del(id)
373 continue
374 }
375 if len(providerConfig.Models) == 0 {
376 slog.Warn("Skipping custom provider because the provider has no models", "provider", id)
377 c.Providers.Del(id)
378 continue
379 }
380 apiKey, err := resolver.ResolveValue(providerConfig.APIKey)
381 if apiKey == "" || err != nil {
382 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
383 }
384 baseURL, err := resolver.ResolveValue(providerConfig.BaseURL)
385 if baseURL == "" || err != nil {
386 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id, "error", err)
387 c.Providers.Del(id)
388 continue
389 }
390
391 // Custom-provider headers share the MCP error contract; see
392 // the known-provider loop above.
393 for k, v := range providerConfig.ExtraHeaders {
394 resolved, err := resolver.ResolveValue(v)
395 if err != nil {
396 return fmt.Errorf("resolving provider %s header %q: %w", id, k, err)
397 }
398 if resolved == "" {
399 delete(providerConfig.ExtraHeaders, k)
400 continue
401 }
402 providerConfig.ExtraHeaders[k] = resolved
403 }
404
405 c.Providers.Set(id, providerConfig)
406 }
407
408 if c.Providers.Len() == 0 && c.Options.DisableDefaultProviders {
409 return fmt.Errorf("default providers are disabled and there are no custom providers are configured")
410 }
411
412 return nil
413}
414
415func (c *Config) setDefaults(workingDir, dataDir string) {
416 if c.Options == nil {
417 c.Options = &Options{}
418 }
419 if c.Options.TUI == nil {
420 c.Options.TUI = &TUIOptions{}
421 }
422 if dataDir != "" {
423 c.Options.DataDirectory = dataDir
424 } else if c.Options.DataDirectory == "" {
425 if path, ok := fsext.LookupClosestBounded(workingDir, projectBoundary(workingDir), defaultDataDirectory); ok {
426 c.Options.DataDirectory = path
427 } else {
428 c.Options.DataDirectory = filepath.Join(workingDir, defaultDataDirectory)
429 }
430 }
431 c.Options.DataDirectory = filepath.Clean(filepathext.SmartJoin(workingDir, c.Options.DataDirectory))
432 if c.Providers == nil {
433 c.Providers = csync.NewMap[string, ProviderConfig]()
434 }
435 if c.Models == nil {
436 c.Models = make(map[SelectedModelType]SelectedModel)
437 }
438 if c.RecentModels == nil {
439 c.RecentModels = make(map[SelectedModelType][]SelectedModel)
440 }
441 if c.MCP == nil {
442 c.MCP = make(map[string]MCPConfig)
443 }
444 if c.LSP == nil {
445 c.LSP = make(map[string]LSPConfig)
446 }
447
448 // Apply defaults to LSP configurations
449 c.applyLSPDefaults()
450
451 // Add the default context paths if they are not already present
452 c.Options.ContextPaths = append(defaultContextPaths, c.Options.ContextPaths...)
453 slices.Sort(c.Options.ContextPaths)
454 c.Options.ContextPaths = slices.Compact(c.Options.ContextPaths)
455
456 // Add the default skills directories if not already present.
457 for _, dir := range GlobalSkillsDirs() {
458 if !slices.Contains(c.Options.SkillsPaths, dir) {
459 c.Options.SkillsPaths = append(c.Options.SkillsPaths, dir)
460 }
461 }
462
463 // Project specific skills dirs.
464 c.Options.SkillsPaths = append(c.Options.SkillsPaths, ProjectSkillsDir(workingDir)...)
465
466 if str, ok := os.LookupEnv("CRUSH_DISABLE_PROVIDER_AUTO_UPDATE"); ok {
467 c.Options.DisableProviderAutoUpdate, _ = strconv.ParseBool(str)
468 }
469
470 if str, ok := os.LookupEnv("CRUSH_DISABLE_DEFAULT_PROVIDERS"); ok {
471 c.Options.DisableDefaultProviders, _ = strconv.ParseBool(str)
472 }
473
474 if c.Options.Attribution == nil {
475 c.Options.Attribution = &Attribution{
476 TrailerStyle: TrailerStyleAssistedBy,
477 GeneratedWith: true,
478 }
479 } else if c.Options.Attribution.TrailerStyle == "" {
480 // Migrate deprecated co_authored_by or apply default
481 if c.Options.Attribution.CoAuthoredBy != nil {
482 if *c.Options.Attribution.CoAuthoredBy {
483 c.Options.Attribution.TrailerStyle = TrailerStyleCoAuthoredBy
484 } else {
485 c.Options.Attribution.TrailerStyle = TrailerStyleNone
486 }
487 } else {
488 c.Options.Attribution.TrailerStyle = TrailerStyleAssistedBy
489 }
490 }
491 c.Options.InitializeAs = cmp.Or(c.Options.InitializeAs, defaultInitializeAs)
492}
493
494// applyLSPDefaults applies default values from powernap to LSP configurations
495func (c *Config) applyLSPDefaults() {
496 // Get powernap's default configuration
497 configManager := powernapConfig.NewManager()
498 configManager.LoadDefaults()
499
500 // Apply defaults to each LSP configuration
501 for name, cfg := range c.LSP {
502 // Try to get defaults from powernap based on name or command name.
503 base, ok := configManager.GetServer(name)
504 if !ok {
505 base, ok = configManager.GetServer(cfg.Command)
506 if !ok {
507 continue
508 }
509 }
510 if cfg.Options == nil {
511 cfg.Options = base.Settings
512 }
513 if cfg.InitOptions == nil {
514 cfg.InitOptions = base.InitOptions
515 }
516 if len(cfg.FileTypes) == 0 {
517 cfg.FileTypes = base.FileTypes
518 }
519 if len(cfg.RootMarkers) == 0 {
520 cfg.RootMarkers = base.RootMarkers
521 }
522 cfg.Command = cmp.Or(cfg.Command, base.Command)
523 if len(cfg.Args) == 0 {
524 cfg.Args = base.Args
525 }
526 if len(cfg.Env) == 0 {
527 cfg.Env = base.Environment
528 }
529 // Update the config in the map
530 c.LSP[name] = cfg
531 }
532}
533
534func (c *Config) defaultModelSelection(knownProviders []catwalk.Provider) (largeModel SelectedModel, smallModel SelectedModel, err error) {
535 if len(knownProviders) == 0 && c.Providers.Len() == 0 {
536 err = fmt.Errorf("no providers configured, please configure at least one provider")
537 return largeModel, smallModel, err
538 }
539
540 // Use the first provider enabled based on the known providers order
541 // if no provider found that is known use the first provider configured
542 for _, p := range knownProviders {
543 providerConfig, ok := c.Providers.Get(string(p.ID))
544 if !ok || providerConfig.Disable {
545 continue
546 }
547 defaultLargeModel := c.GetModel(string(p.ID), p.DefaultLargeModelID)
548 if defaultLargeModel == nil {
549 err = fmt.Errorf("default large model %s not found for provider %s", p.DefaultLargeModelID, p.ID)
550 return largeModel, smallModel, err
551 }
552 largeModel = SelectedModel{
553 Provider: string(p.ID),
554 Model: defaultLargeModel.ID,
555 MaxTokens: defaultLargeModel.DefaultMaxTokens,
556 ReasoningEffort: defaultLargeModel.DefaultReasoningEffort,
557 }
558
559 defaultSmallModel := c.GetModel(string(p.ID), p.DefaultSmallModelID)
560 if defaultSmallModel == nil {
561 err = fmt.Errorf("default small model %s not found for provider %s", p.DefaultSmallModelID, p.ID)
562 return largeModel, smallModel, err
563 }
564 smallModel = SelectedModel{
565 Provider: string(p.ID),
566 Model: defaultSmallModel.ID,
567 MaxTokens: defaultSmallModel.DefaultMaxTokens,
568 ReasoningEffort: defaultSmallModel.DefaultReasoningEffort,
569 }
570 return largeModel, smallModel, err
571 }
572
573 enabledProviders := c.EnabledProviders()
574 slices.SortFunc(enabledProviders, func(a, b ProviderConfig) int {
575 return strings.Compare(a.ID, b.ID)
576 })
577
578 if len(enabledProviders) == 0 {
579 err = fmt.Errorf("no providers configured, please configure at least one provider")
580 return largeModel, smallModel, err
581 }
582
583 providerConfig := enabledProviders[0]
584 if len(providerConfig.Models) == 0 {
585 err = fmt.Errorf("provider %s has no models configured", providerConfig.ID)
586 return largeModel, smallModel, err
587 }
588 defaultLargeModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
589 largeModel = SelectedModel{
590 Provider: providerConfig.ID,
591 Model: defaultLargeModel.ID,
592 MaxTokens: defaultLargeModel.DefaultMaxTokens,
593 }
594 defaultSmallModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
595 smallModel = SelectedModel{
596 Provider: providerConfig.ID,
597 Model: defaultSmallModel.ID,
598 MaxTokens: defaultSmallModel.DefaultMaxTokens,
599 }
600 return largeModel, smallModel, err
601}
602
603func configureSelectedModels(store *ConfigStore, knownProviders []catwalk.Provider, persist bool) error {
604 c := store.config
605 defaultLarge, defaultSmall, err := c.defaultModelSelection(knownProviders)
606 if err != nil {
607 return fmt.Errorf("failed to select default models: %w", err)
608 }
609 large, small := defaultLarge, defaultSmall
610
611 largeModelSelected, largeModelConfigured := c.Models[SelectedModelTypeLarge]
612 if largeModelConfigured {
613 if largeModelSelected.Model != "" {
614 large.Model = largeModelSelected.Model
615 }
616 if largeModelSelected.Provider != "" {
617 large.Provider = largeModelSelected.Provider
618 }
619 model := c.GetModel(large.Provider, large.Model)
620 if model == nil {
621 large = defaultLarge
622 if persist {
623 if err := store.UpdatePreferredModel(ScopeGlobal, SelectedModelTypeLarge, large); err != nil {
624 return fmt.Errorf("failed to update preferred large model: %w", err)
625 }
626 }
627 } else {
628 if largeModelSelected.MaxTokens > 0 {
629 large.MaxTokens = largeModelSelected.MaxTokens
630 } else {
631 large.MaxTokens = model.DefaultMaxTokens
632 }
633 if largeModelSelected.ReasoningEffort != "" {
634 large.ReasoningEffort = largeModelSelected.ReasoningEffort
635 }
636 large.Think = largeModelSelected.Think
637 if largeModelSelected.Temperature != nil {
638 large.Temperature = largeModelSelected.Temperature
639 }
640 if largeModelSelected.TopP != nil {
641 large.TopP = largeModelSelected.TopP
642 }
643 if largeModelSelected.TopK != nil {
644 large.TopK = largeModelSelected.TopK
645 }
646 if largeModelSelected.FrequencyPenalty != nil {
647 large.FrequencyPenalty = largeModelSelected.FrequencyPenalty
648 }
649 if largeModelSelected.PresencePenalty != nil {
650 large.PresencePenalty = largeModelSelected.PresencePenalty
651 }
652 }
653 }
654 smallModelSelected, smallModelConfigured := c.Models[SelectedModelTypeSmall]
655 if smallModelConfigured {
656 if smallModelSelected.Model != "" {
657 small.Model = smallModelSelected.Model
658 }
659 if smallModelSelected.Provider != "" {
660 small.Provider = smallModelSelected.Provider
661 }
662
663 model := c.GetModel(small.Provider, small.Model)
664 if model == nil {
665 small = defaultSmall
666 if persist {
667 if err := store.UpdatePreferredModel(ScopeGlobal, SelectedModelTypeSmall, small); err != nil {
668 return fmt.Errorf("failed to update preferred small model: %w", err)
669 }
670 }
671 } else {
672 if smallModelSelected.MaxTokens > 0 {
673 small.MaxTokens = smallModelSelected.MaxTokens
674 } else {
675 small.MaxTokens = model.DefaultMaxTokens
676 }
677 if smallModelSelected.ReasoningEffort != "" {
678 small.ReasoningEffort = smallModelSelected.ReasoningEffort
679 }
680 if smallModelSelected.Temperature != nil {
681 small.Temperature = smallModelSelected.Temperature
682 }
683 if smallModelSelected.TopP != nil {
684 small.TopP = smallModelSelected.TopP
685 }
686 if smallModelSelected.TopK != nil {
687 small.TopK = smallModelSelected.TopK
688 }
689 if smallModelSelected.FrequencyPenalty != nil {
690 small.FrequencyPenalty = smallModelSelected.FrequencyPenalty
691 }
692 if smallModelSelected.PresencePenalty != nil {
693 small.PresencePenalty = smallModelSelected.PresencePenalty
694 }
695 small.Think = smallModelSelected.Think
696 }
697 }
698
699 // When small isn't explicitly configured and the provider isn't a
700 // known built-in, use the large model as the small model. This
701 // prevents two different models from being requested concurrently
702 // for local/openai-compat providers.
703 if !smallModelConfigured {
704 isKnownProvider := false
705 for _, kp := range knownProviders {
706 if string(kp.ID) == small.Provider {
707 isKnownProvider = true
708 break
709 }
710 }
711 if !isKnownProvider {
712 slog.Warn("Using large model as small model for unknown provider", "provider", large.Provider, "model", large.Model)
713 small = large
714 }
715 }
716
717 c.Models[SelectedModelTypeLarge] = large
718 c.Models[SelectedModelTypeSmall] = small
719 return nil
720}
721
722// lookupConfigs searches config files starting at cwd and walking up
723// through the current project. The upward walk stops at the git
724// working tree root when one can be detected, otherwise at cwd itself,
725// so an unrelated crush.json placed above the project is never picked
726// up. Global user-level config locations are always included
727// regardless of the boundary.
728func lookupConfigs(cwd string) []string {
729 // prepend default config paths
730 configPaths := []string{
731 GlobalConfig(),
732 GlobalConfigData(),
733 }
734
735 configNames := []string{appName + ".json", "." + appName + ".json"}
736
737 foundConfigs, err := fsext.LookupBounded(cwd, projectBoundary(cwd), configNames...)
738 if err != nil {
739 // returns at least default configs
740 return configPaths
741 }
742
743 // reverse order so last config has more priority
744 slices.Reverse(foundConfigs)
745
746 return append(configPaths, foundConfigs...)
747}
748
749func loadFromConfigPaths(configPaths []string) (*Config, []string, error) {
750 var configs [][]byte
751 var loaded []string
752
753 for _, path := range configPaths {
754 data, err := os.ReadFile(path)
755 if err != nil {
756 if os.IsNotExist(err) {
757 continue
758 }
759 return nil, nil, fmt.Errorf("failed to open config file %s: %w", path, err)
760 }
761 if len(data) == 0 {
762 continue
763 }
764 if !json.Valid(data) {
765 return nil, nil, fmt.Errorf("invalid JSON in config file %s", path)
766 }
767 configs = append(configs, data)
768 loaded = append(loaded, path)
769 }
770
771 cfg, err := loadFromBytes(configs)
772 if err != nil {
773 return nil, nil, err
774 }
775 return cfg, loaded, nil
776}
777
778func loadFromBytes(configs [][]byte) (*Config, error) {
779 if len(configs) == 0 {
780 return &Config{}, nil
781 }
782
783 data, err := jsons.Merge(configs)
784 if err != nil {
785 return nil, err
786 }
787 var config Config
788 if err := json.Unmarshal(data, &config); err != nil {
789 return nil, err
790 }
791 return &config, nil
792}
793
794func hasAWSCredentials(env env.Env) bool {
795 if env.Get("AWS_BEARER_TOKEN_BEDROCK") != "" {
796 return true
797 }
798
799 if env.Get("AWS_ACCESS_KEY_ID") != "" && env.Get("AWS_SECRET_ACCESS_KEY") != "" {
800 return true
801 }
802
803 if env.Get("AWS_PROFILE") != "" || env.Get("AWS_DEFAULT_PROFILE") != "" {
804 return true
805 }
806
807 if env.Get("AWS_REGION") != "" || env.Get("AWS_DEFAULT_REGION") != "" {
808 return true
809 }
810
811 if env.Get("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI") != "" ||
812 env.Get("AWS_CONTAINER_CREDENTIALS_FULL_URI") != "" {
813 return true
814 }
815
816 if _, err := os.Stat(filepath.Join(home.Dir(), ".aws/credentials")); err == nil && !testing.Testing() {
817 return true
818 }
819
820 return false
821}
822
823// GlobalConfig returns the global configuration file path for the application.
824func GlobalConfig() string {
825 if crushGlobal := os.Getenv("CRUSH_GLOBAL_CONFIG"); crushGlobal != "" {
826 return filepath.Join(crushGlobal, fmt.Sprintf("%s.json", appName))
827 }
828 return filepath.Join(home.Config(), appName, fmt.Sprintf("%s.json", appName))
829}
830
831// GlobalCacheDir returns the path to the global cache directory for the
832// application.
833func GlobalCacheDir() string {
834 if crushCache := os.Getenv("CRUSH_CACHE_DIR"); crushCache != "" {
835 return crushCache
836 }
837 if xdgCacheHome := os.Getenv("XDG_CACHE_HOME"); xdgCacheHome != "" {
838 return filepath.Join(xdgCacheHome, appName)
839 }
840 if runtime.GOOS == "windows" {
841 localAppData := cmp.Or(
842 os.Getenv("LOCALAPPDATA"),
843 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
844 )
845 return filepath.Join(localAppData, appName, "cache")
846 }
847 return filepath.Join(home.Dir(), ".cache", appName)
848}
849
850// ProjectConfigs returns list of current project configs paths.
851func ProjectConfigs(cwd string) []string {
852 return lookupConfigs(cwd)
853}
854
855// GlobalConfigData returns the path to the main data directory for the application.
856// this config is used when the app overrides configurations instead of updating the global config.
857func GlobalConfigData() string {
858 if crushData := os.Getenv("CRUSH_GLOBAL_DATA"); crushData != "" {
859 return filepath.Join(crushData, fmt.Sprintf("%s.json", appName))
860 }
861 if xdgDataHome := os.Getenv("XDG_DATA_HOME"); xdgDataHome != "" {
862 return filepath.Join(xdgDataHome, appName, fmt.Sprintf("%s.json", appName))
863 }
864
865 // return the path to the main data directory
866 // for windows, it should be in `%LOCALAPPDATA%/crush/`
867 // for linux and macOS, it should be in `$HOME/.local/share/crush/`
868 if runtime.GOOS == "windows" {
869 localAppData := cmp.Or(
870 os.Getenv("LOCALAPPDATA"),
871 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
872 )
873 return filepath.Join(localAppData, appName, fmt.Sprintf("%s.json", appName))
874 }
875
876 return filepath.Join(home.Dir(), ".local", "share", appName, fmt.Sprintf("%s.json", appName))
877}
878
879// GlobalWorkspaceDir returns the path to the global server workspace
880// directory. This directory acts as a meta-workspace for the server
881// process, giving it a real workingDir so that config loading, scoped
882// writes, and provider resolution behave identically to project
883// workspaces.
884func GlobalWorkspaceDir() string {
885 return filepath.Dir(GlobalConfigData())
886}
887
888func assignIfNil[T any](ptr **T, val T) {
889 if *ptr == nil {
890 *ptr = &val
891 }
892}
893
894func isInsideWorktree() bool {
895 bts, err := exec.CommandContext(
896 context.Background(),
897 "git", "rev-parse",
898 "--is-inside-work-tree",
899 ).CombinedOutput()
900 return err == nil && strings.TrimSpace(string(bts)) == "true"
901}
902
903// worktreeRoot returns the absolute path of the git working tree root for
904// dir, or the empty string if dir is not inside a working tree (bare
905// repositories, missing git binary, plain directories, or any other
906// failure mode). Linked worktrees and submodules each report their own
907// top-level, which is what callers want when bounding lookups.
908func worktreeRoot(dir string) string {
909 cmd := exec.CommandContext(
910 context.Background(),
911 "git", "rev-parse", "--show-toplevel",
912 )
913 cmd.Dir = dir
914 out, err := cmd.Output()
915 if err != nil {
916 return ""
917 }
918 root := strings.TrimSpace(string(out))
919 if root == "" {
920 return ""
921 }
922 abs, err := filepath.Abs(root)
923 if err != nil {
924 return ""
925 }
926 return abs
927}
928
929// projectBoundary returns the directory at which an upward configuration
930// search rooted at dir should stop. It is the git working tree root when
931// one can be detected, otherwise dir itself. Returning dir as a
932// fallback keeps Crush from silently adopting state files placed above
933// the current project.
934func projectBoundary(dir string) string {
935 if root := worktreeRoot(dir); root != "" {
936 return root
937 }
938 abs, err := filepath.Abs(dir)
939 if err != nil {
940 return dir
941 }
942 return abs
943}
944
945// GlobalSkillsDirs returns the default directories for Agent Skills.
946// Skills in these directories are auto-discovered and their files can be read
947// without permission prompts.
948func GlobalSkillsDirs() []string {
949 if crushSkills := os.Getenv("CRUSH_SKILLS_DIR"); crushSkills != "" {
950 return []string{crushSkills}
951 }
952
953 paths := []string{
954 filepath.Join(home.Config(), appName, "skills"),
955 filepath.Join(home.Config(), "agents", "skills"),
956 // Per the Agent Skills spec, scan ~/.agents/skills
957 filepath.Join(home.Dir(), ".agents", "skills"),
958 filepath.Join(home.Dir(), ".claude", "skills"),
959 }
960
961 // On Windows, also load from app data on top of `$HOME/.config/crush`.
962 // This is here mostly for backwards compatibility.
963 if runtime.GOOS == "windows" {
964 appData := cmp.Or(
965 os.Getenv("LOCALAPPDATA"),
966 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
967 )
968 paths = append(
969 paths,
970 filepath.Join(appData, appName, "skills"),
971 filepath.Join(appData, "agents", "skills"),
972 )
973 }
974
975 return paths
976}
977
978// ProjectSkillsDir returns the default project directories for which Crush
979// will look for skills.
980func ProjectSkillsDir(workingDir string) []string {
981 return []string{
982 filepath.Join(workingDir, ".agents/skills"),
983 filepath.Join(workingDir, ".crush/skills"),
984 filepath.Join(workingDir, ".claude/skills"),
985 filepath.Join(workingDir, ".cursor/skills"),
986 }
987}
988
989func isAppleTerminal() bool { return os.Getenv("TERM_PROGRAM") == "Apple_Terminal" }
990
991// normalizeHookEvent maps user-provided event names to their canonical
992// form. Matching is case-insensitive and accepts snake_case variants
993// (e.g. "pre_tool_use" → "PreToolUse").
994func normalizeHookEvent(name string) string {
995 switch strings.ToLower(strings.ReplaceAll(name, "_", "")) {
996 case "pretooluse":
997 return "PreToolUse"
998 default:
999 return name
1000 }
1001}
1002
1003// ValidateHooks normalizes event names and checks that every configured
1004// hook has a command and a syntactically valid matcher regex. Matcher
1005// compilation used for matching is owned by hooks.Runner; this function
1006// only validates up front so the user sees config errors at load time
1007// rather than on the first tool call.
1008func (c *Config) ValidateHooks() error {
1009 // Normalize event name keys.
1010 for event, eventHooks := range c.Hooks {
1011 canonical := normalizeHookEvent(event)
1012 if canonical != event {
1013 c.Hooks[canonical] = append(c.Hooks[canonical], eventHooks...)
1014 delete(c.Hooks, event)
1015 }
1016 }
1017
1018 for event, eventHooks := range c.Hooks {
1019 for i, h := range eventHooks {
1020 if h.Command == "" {
1021 return fmt.Errorf("hook %s[%d]: command is required", event, i)
1022 }
1023 if h.Matcher == "" {
1024 continue
1025 }
1026 if _, err := regexp.Compile(h.Matcher); err != nil {
1027 return fmt.Errorf("hook %s[%d]: invalid matcher regex %q: %w", event, i, h.Matcher, err)
1028 }
1029 }
1030 }
1031 return nil
1032}