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 "git.secluded.site/crush/internal/agent/hyper"
22 "git.secluded.site/crush/internal/csync"
23 "git.secluded.site/crush/internal/env"
24 "git.secluded.site/crush/internal/filepathext"
25 "git.secluded.site/crush/internal/fsext"
26 "git.secluded.site/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 p.APIKey == "" && !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 case catwalk.InferenceProvider("hyper"):
309 if apiKey := env.Get("HYPER_API_KEY"); apiKey != "" {
310 prepared.APIKey = apiKey
311 prepared.APIKeyTemplate = apiKey
312 } else {
313 v, err := resolver.ResolveValue(p.APIKey)
314 if v == "" || err != nil {
315 if configExists {
316 slog.Warn("Skipping Hyper provider due to missing API key", "provider", p.ID)
317 c.Providers.Del(string(p.ID))
318 }
319 continue
320 }
321 }
322 default:
323 // if the provider api or endpoint are missing we skip them
324 v, err := resolver.ResolveValue(p.APIKey)
325 if v == "" || err != nil {
326 if configExists {
327 slog.Warn("Skipping provider due to missing API key", "provider", p.ID)
328 c.Providers.Del(string(p.ID))
329 }
330 continue
331 }
332 }
333 c.Providers.Set(string(p.ID), prepared)
334 }
335
336 // validate the custom providers
337 for id, providerConfig := range c.Providers.Seq2() {
338 if knownProviderNames[id] {
339 continue
340 }
341
342 // Make sure the provider ID is set
343 providerConfig.ID = id
344 providerConfig.Name = cmp.Or(providerConfig.Name, id) // Use ID as name if not set
345 // default to OpenAI if not set
346 providerConfig.Type = cmp.Or(providerConfig.Type, catwalk.TypeOpenAICompat)
347 if !slices.Contains(catwalk.KnownProviderTypes(), providerConfig.Type) && providerConfig.Type != hyper.Name {
348 slog.Warn("Skipping custom provider due to unsupported provider type", "provider", id)
349 c.Providers.Del(id)
350 continue
351 }
352
353 if providerConfig.Disable {
354 slog.Debug("Skipping custom provider due to disable flag", "provider", id)
355 c.Providers.Del(id)
356 continue
357 }
358 if providerConfig.APIKey == "" {
359 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
360 }
361 if providerConfig.BaseURL == "" {
362 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id)
363 c.Providers.Del(id)
364 continue
365 }
366 if len(providerConfig.Models) == 0 {
367 slog.Warn("Skipping custom provider because the provider has no models", "provider", id)
368 c.Providers.Del(id)
369 continue
370 }
371 apiKey, err := resolver.ResolveValue(providerConfig.APIKey)
372 if apiKey == "" || err != nil {
373 slog.Warn("Provider is missing API key, this might be OK for local providers", "provider", id)
374 }
375 baseURL, err := resolver.ResolveValue(providerConfig.BaseURL)
376 if baseURL == "" || err != nil {
377 slog.Warn("Skipping custom provider due to missing API endpoint", "provider", id, "error", err)
378 c.Providers.Del(id)
379 continue
380 }
381
382 // Custom-provider headers share the MCP error contract; see
383 // the known-provider loop above.
384 for k, v := range providerConfig.ExtraHeaders {
385 resolved, err := resolver.ResolveValue(v)
386 if err != nil {
387 return fmt.Errorf("resolving provider %s header %q: %w", id, k, err)
388 }
389 if resolved == "" {
390 delete(providerConfig.ExtraHeaders, k)
391 continue
392 }
393 providerConfig.ExtraHeaders[k] = resolved
394 }
395
396 c.Providers.Set(id, providerConfig)
397 }
398
399 if c.Providers.Len() == 0 && c.Options.DisableDefaultProviders {
400 return fmt.Errorf("default providers are disabled and there are no custom providers are configured")
401 }
402
403 return nil
404}
405
406func (c *Config) setDefaults(workingDir, dataDir string) {
407 if c.Options == nil {
408 c.Options = &Options{}
409 }
410 if c.Options.TUI == nil {
411 c.Options.TUI = &TUIOptions{}
412 }
413 if len(c.Options.GlobalContextPaths) == 0 {
414 crushConfigDir := filepath.Dir(GlobalConfig())
415 c.Options.GlobalContextPaths = []string{
416 filepath.Join(crushConfigDir, "CRUSH.md"),
417 filepath.Join(crushConfigDir, "AGENTS.md"),
418 filepath.Join(filepath.Dir(crushConfigDir), "AGENTS.md"),
419 }
420 }
421 slices.Sort(c.Options.GlobalContextPaths)
422 c.Options.GlobalContextPaths = slices.Compact(c.Options.GlobalContextPaths)
423
424 if dataDir != "" {
425 c.Options.DataDirectory = dataDir
426 } else if c.Options.DataDirectory == "" {
427 if path, ok := fsext.LookupClosestBounded(workingDir, projectBoundary(workingDir), defaultDataDirectory); ok {
428 c.Options.DataDirectory = path
429 } else {
430 c.Options.DataDirectory = filepath.Join(workingDir, defaultDataDirectory)
431 }
432 }
433 c.Options.DataDirectory = filepath.Clean(filepathext.SmartJoin(workingDir, c.Options.DataDirectory))
434 if c.Providers == nil {
435 c.Providers = csync.NewMap[string, ProviderConfig]()
436 }
437 if c.Models == nil {
438 c.Models = make(map[SelectedModelType]SelectedModel)
439 }
440 if c.RecentModels == nil {
441 c.RecentModels = make(map[SelectedModelType][]SelectedModel)
442 }
443 if c.MCP == nil {
444 c.MCP = make(map[string]MCPConfig)
445 }
446 if c.LSP == nil {
447 c.LSP = make(map[string]LSPConfig)
448 }
449
450 // Apply defaults to LSP configurations
451 c.applyLSPDefaults()
452
453 // Add the default context paths if they are not already present
454 c.Options.ContextPaths = append(defaultContextPaths, c.Options.ContextPaths...)
455
456 slices.Sort(c.Options.ContextPaths)
457 c.Options.ContextPaths = slices.Compact(c.Options.ContextPaths)
458
459 // Add the default skills directories if not already present.
460 for _, dir := range GlobalSkillsDirs() {
461 if !slices.Contains(c.Options.SkillsPaths, dir) {
462 c.Options.SkillsPaths = append(c.Options.SkillsPaths, dir)
463 }
464 }
465
466 // Project specific skills dirs.
467 c.Options.SkillsPaths = append(c.Options.SkillsPaths, ProjectSkillsDir(workingDir)...)
468
469 if str, ok := os.LookupEnv("CRUSH_DISABLE_PROVIDER_AUTO_UPDATE"); ok {
470 c.Options.DisableProviderAutoUpdate, _ = strconv.ParseBool(str)
471 }
472
473 if str, ok := os.LookupEnv("CRUSH_DISABLE_DEFAULT_PROVIDERS"); ok {
474 c.Options.DisableDefaultProviders, _ = strconv.ParseBool(str)
475 }
476
477 if c.Options.Attribution == nil {
478 c.Options.Attribution = &Attribution{
479 TrailerStyle: TrailerStyleAssistedBy,
480 GeneratedWith: true,
481 }
482 } else if c.Options.Attribution.TrailerStyle == "" {
483 // Migrate deprecated co_authored_by or apply default
484 if c.Options.Attribution.CoAuthoredBy != nil {
485 if *c.Options.Attribution.CoAuthoredBy {
486 c.Options.Attribution.TrailerStyle = TrailerStyleCoAuthoredBy
487 } else {
488 c.Options.Attribution.TrailerStyle = TrailerStyleNone
489 }
490 } else {
491 c.Options.Attribution.TrailerStyle = TrailerStyleAssistedBy
492 }
493 }
494 c.Options.InitializeAs = cmp.Or(c.Options.InitializeAs, defaultInitializeAs)
495}
496
497// applyLSPDefaults applies default values from powernap to LSP configurations
498func (c *Config) applyLSPDefaults() {
499 // Get powernap's default configuration
500 configManager := powernapConfig.NewManager()
501 configManager.LoadDefaults()
502
503 // Apply defaults to each LSP configuration
504 for name, cfg := range c.LSP {
505 // Try to get defaults from powernap based on name or command name.
506 base, ok := configManager.GetServer(name)
507 if !ok {
508 base, ok = configManager.GetServer(cfg.Command)
509 if !ok {
510 continue
511 }
512 }
513 if cfg.Options == nil {
514 cfg.Options = base.Settings
515 }
516 if cfg.InitOptions == nil {
517 cfg.InitOptions = base.InitOptions
518 }
519 if len(cfg.FileTypes) == 0 {
520 cfg.FileTypes = base.FileTypes
521 }
522 if len(cfg.RootMarkers) == 0 {
523 cfg.RootMarkers = base.RootMarkers
524 }
525 cfg.Command = cmp.Or(cfg.Command, base.Command)
526 if len(cfg.Args) == 0 {
527 cfg.Args = base.Args
528 }
529 if len(cfg.Env) == 0 {
530 cfg.Env = base.Environment
531 }
532 // Update the config in the map
533 c.LSP[name] = cfg
534 }
535}
536
537func (c *Config) defaultModelSelection(knownProviders []catwalk.Provider) (largeModel SelectedModel, smallModel SelectedModel, err error) {
538 if len(knownProviders) == 0 && c.Providers.Len() == 0 {
539 err = fmt.Errorf("no providers configured, please configure at least one provider")
540 return largeModel, smallModel, err
541 }
542
543 // Use the first provider enabled based on the known providers order
544 // if no provider found that is known use the first provider configured
545 for _, p := range knownProviders {
546 providerConfig, ok := c.Providers.Get(string(p.ID))
547 if !ok || providerConfig.Disable {
548 continue
549 }
550 defaultLargeModel := c.GetModel(string(p.ID), p.DefaultLargeModelID)
551 if defaultLargeModel == nil {
552 err = fmt.Errorf("default large model %s not found for provider %s", p.DefaultLargeModelID, p.ID)
553 return largeModel, smallModel, err
554 }
555 largeModel = SelectedModel{
556 Provider: string(p.ID),
557 Model: defaultLargeModel.ID,
558 MaxTokens: defaultLargeModel.DefaultMaxTokens,
559 ReasoningEffort: defaultLargeModel.DefaultReasoningEffort,
560 }
561
562 defaultSmallModel := c.GetModel(string(p.ID), p.DefaultSmallModelID)
563 if defaultSmallModel == nil {
564 err = fmt.Errorf("default small model %s not found for provider %s", p.DefaultSmallModelID, p.ID)
565 return largeModel, smallModel, err
566 }
567 smallModel = SelectedModel{
568 Provider: string(p.ID),
569 Model: defaultSmallModel.ID,
570 MaxTokens: defaultSmallModel.DefaultMaxTokens,
571 ReasoningEffort: defaultSmallModel.DefaultReasoningEffort,
572 }
573 return largeModel, smallModel, err
574 }
575
576 enabledProviders := c.EnabledProviders()
577 slices.SortFunc(enabledProviders, func(a, b ProviderConfig) int {
578 return strings.Compare(a.ID, b.ID)
579 })
580
581 if len(enabledProviders) == 0 {
582 err = fmt.Errorf("no providers configured, please configure at least one provider")
583 return largeModel, smallModel, err
584 }
585
586 providerConfig := enabledProviders[0]
587 if len(providerConfig.Models) == 0 {
588 err = fmt.Errorf("provider %s has no models configured", providerConfig.ID)
589 return largeModel, smallModel, err
590 }
591 defaultLargeModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
592 largeModel = SelectedModel{
593 Provider: providerConfig.ID,
594 Model: defaultLargeModel.ID,
595 MaxTokens: defaultLargeModel.DefaultMaxTokens,
596 }
597 defaultSmallModel := c.GetModel(providerConfig.ID, providerConfig.Models[0].ID)
598 smallModel = SelectedModel{
599 Provider: providerConfig.ID,
600 Model: defaultSmallModel.ID,
601 MaxTokens: defaultSmallModel.DefaultMaxTokens,
602 }
603 return largeModel, smallModel, err
604}
605
606func configureSelectedModels(store *ConfigStore, knownProviders []catwalk.Provider, persist bool) error {
607 c := store.config
608 defaultLarge, defaultSmall, err := c.defaultModelSelection(knownProviders)
609 if err != nil {
610 return fmt.Errorf("failed to select default models: %w", err)
611 }
612 large, small := defaultLarge, defaultSmall
613
614 largeModelSelected, largeModelConfigured := c.Models[SelectedModelTypeLarge]
615 if largeModelConfigured {
616 if largeModelSelected.Model != "" {
617 large.Model = largeModelSelected.Model
618 }
619 if largeModelSelected.Provider != "" {
620 large.Provider = largeModelSelected.Provider
621 }
622 model := c.GetModel(large.Provider, large.Model)
623 if model == nil {
624 large = defaultLarge
625 if persist {
626 if err := store.UpdatePreferredModel(ScopeGlobal, SelectedModelTypeLarge, large); err != nil {
627 return fmt.Errorf("failed to update preferred large model: %w", err)
628 }
629 }
630 } else {
631 if largeModelSelected.MaxTokens > 0 {
632 large.MaxTokens = largeModelSelected.MaxTokens
633 } else {
634 large.MaxTokens = model.DefaultMaxTokens
635 }
636 if largeModelSelected.ReasoningEffort != "" {
637 large.ReasoningEffort = largeModelSelected.ReasoningEffort
638 }
639 large.Think = largeModelSelected.Think
640 if largeModelSelected.Temperature != nil {
641 large.Temperature = largeModelSelected.Temperature
642 }
643 if largeModelSelected.TopP != nil {
644 large.TopP = largeModelSelected.TopP
645 }
646 if largeModelSelected.TopK != nil {
647 large.TopK = largeModelSelected.TopK
648 }
649 if largeModelSelected.FrequencyPenalty != nil {
650 large.FrequencyPenalty = largeModelSelected.FrequencyPenalty
651 }
652 if largeModelSelected.PresencePenalty != nil {
653 large.PresencePenalty = largeModelSelected.PresencePenalty
654 }
655 }
656 }
657 smallModelSelected, smallModelConfigured := c.Models[SelectedModelTypeSmall]
658 if smallModelConfigured {
659 if smallModelSelected.Model != "" {
660 small.Model = smallModelSelected.Model
661 }
662 if smallModelSelected.Provider != "" {
663 small.Provider = smallModelSelected.Provider
664 }
665
666 model := c.GetModel(small.Provider, small.Model)
667 if model == nil {
668 small = defaultSmall
669 if persist {
670 if err := store.UpdatePreferredModel(ScopeGlobal, SelectedModelTypeSmall, small); err != nil {
671 return fmt.Errorf("failed to update preferred small model: %w", err)
672 }
673 }
674 } else {
675 if smallModelSelected.MaxTokens > 0 {
676 small.MaxTokens = smallModelSelected.MaxTokens
677 } else {
678 small.MaxTokens = model.DefaultMaxTokens
679 }
680 if smallModelSelected.ReasoningEffort != "" {
681 small.ReasoningEffort = smallModelSelected.ReasoningEffort
682 }
683 if smallModelSelected.Temperature != nil {
684 small.Temperature = smallModelSelected.Temperature
685 }
686 if smallModelSelected.TopP != nil {
687 small.TopP = smallModelSelected.TopP
688 }
689 if smallModelSelected.TopK != nil {
690 small.TopK = smallModelSelected.TopK
691 }
692 if smallModelSelected.FrequencyPenalty != nil {
693 small.FrequencyPenalty = smallModelSelected.FrequencyPenalty
694 }
695 if smallModelSelected.PresencePenalty != nil {
696 small.PresencePenalty = smallModelSelected.PresencePenalty
697 }
698 small.Think = smallModelSelected.Think
699 }
700 }
701
702 // When small isn't explicitly configured and the provider isn't a
703 // known built-in, use the large model as the small model. This
704 // prevents two different models from being requested concurrently
705 // for local/openai-compat providers.
706 if !smallModelConfigured {
707 isKnownProvider := false
708 for _, kp := range knownProviders {
709 if string(kp.ID) == small.Provider {
710 isKnownProvider = true
711 break
712 }
713 }
714 if !isKnownProvider {
715 slog.Warn("Using large model as small model for unknown provider", "provider", large.Provider, "model", large.Model)
716 small = large
717 }
718 }
719
720 c.Models[SelectedModelTypeLarge] = large
721 c.Models[SelectedModelTypeSmall] = small
722 return nil
723}
724
725// lookupConfigs searches config files starting at cwd and walking up
726// through the current project. The upward walk stops at the git
727// working tree root when one can be detected, otherwise at cwd itself,
728// so an unrelated crush.json placed above the project is never picked
729// up. Global user-level config locations are always included
730// regardless of the boundary.
731func lookupConfigs(cwd string) []string {
732 // prepend default config paths
733 configPaths := []string{
734 GlobalConfig(),
735 GlobalConfigData(),
736 }
737
738 configNames := []string{appName + ".json", "." + appName + ".json"}
739
740 foundConfigs, err := fsext.LookupBounded(cwd, projectBoundary(cwd), configNames...)
741 if err != nil {
742 // returns at least default configs
743 return configPaths
744 }
745
746 // reverse order so last config has more priority
747 slices.Reverse(foundConfigs)
748
749 return append(configPaths, foundConfigs...)
750}
751
752func loadFromConfigPaths(configPaths []string) (*Config, []string, error) {
753 var configs [][]byte
754 var loaded []string
755
756 for _, path := range configPaths {
757 data, err := os.ReadFile(path)
758 if err != nil {
759 if os.IsNotExist(err) {
760 continue
761 }
762 return nil, nil, fmt.Errorf("failed to open config file %s: %w", path, err)
763 }
764 if len(data) == 0 {
765 continue
766 }
767 if !json.Valid(data) {
768 return nil, nil, fmt.Errorf("invalid JSON in config file %s", path)
769 }
770 configs = append(configs, data)
771 loaded = append(loaded, path)
772 }
773
774 cfg, err := loadFromBytes(configs)
775 if err != nil {
776 return nil, nil, err
777 }
778 return cfg, loaded, nil
779}
780
781func loadFromBytes(configs [][]byte) (*Config, error) {
782 if len(configs) == 0 {
783 return &Config{}, nil
784 }
785
786 data, err := jsons.Merge(configs)
787 if err != nil {
788 return nil, err
789 }
790 var config Config
791 if err := json.Unmarshal(data, &config); err != nil {
792 return nil, err
793 }
794 return &config, nil
795}
796
797func hasAWSCredentials(env env.Env) bool {
798 if env.Get("AWS_BEARER_TOKEN_BEDROCK") != "" {
799 return true
800 }
801
802 if env.Get("AWS_ACCESS_KEY_ID") != "" && env.Get("AWS_SECRET_ACCESS_KEY") != "" {
803 return true
804 }
805
806 if env.Get("AWS_PROFILE") != "" || env.Get("AWS_DEFAULT_PROFILE") != "" {
807 return true
808 }
809
810 if env.Get("AWS_REGION") != "" || env.Get("AWS_DEFAULT_REGION") != "" {
811 return true
812 }
813
814 if env.Get("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI") != "" ||
815 env.Get("AWS_CONTAINER_CREDENTIALS_FULL_URI") != "" {
816 return true
817 }
818
819 if _, err := os.Stat(filepath.Join(home.Dir(), ".aws/credentials")); err == nil && !testing.Testing() {
820 return true
821 }
822
823 return false
824}
825
826// GlobalConfig returns the global configuration file path for the application.
827func GlobalConfig() string {
828 if crushGlobal := os.Getenv("CRUSH_GLOBAL_CONFIG"); crushGlobal != "" {
829 return filepath.Join(crushGlobal, fmt.Sprintf("%s.json", appName))
830 }
831 return filepath.Join(home.Config(), appName, fmt.Sprintf("%s.json", appName))
832}
833
834// GlobalCacheDir returns the path to the global cache directory for the
835// application.
836func GlobalCacheDir() string {
837 if crushCache := os.Getenv("CRUSH_CACHE_DIR"); crushCache != "" {
838 return crushCache
839 }
840 if xdgCacheHome := os.Getenv("XDG_CACHE_HOME"); xdgCacheHome != "" {
841 return filepath.Join(xdgCacheHome, appName)
842 }
843 if runtime.GOOS == "windows" {
844 localAppData := cmp.Or(
845 os.Getenv("LOCALAPPDATA"),
846 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
847 )
848 return filepath.Join(localAppData, appName, "cache")
849 }
850 return filepath.Join(home.Dir(), ".cache", appName)
851}
852
853// ProjectConfigs returns list of current project configs paths.
854func ProjectConfigs(cwd string) []string {
855 return lookupConfigs(cwd)
856}
857
858// GlobalConfigData returns the path to the main data directory for the application.
859// this config is used when the app overrides configurations instead of updating the global config.
860func GlobalConfigData() string {
861 if crushData := os.Getenv("CRUSH_GLOBAL_DATA"); crushData != "" {
862 return filepath.Join(crushData, fmt.Sprintf("%s.json", appName))
863 }
864 if xdgDataHome := os.Getenv("XDG_DATA_HOME"); xdgDataHome != "" {
865 return filepath.Join(xdgDataHome, appName, fmt.Sprintf("%s.json", appName))
866 }
867
868 // return the path to the main data directory
869 // for windows, it should be in `%LOCALAPPDATA%/crush/`
870 // for linux and macOS, it should be in `$HOME/.local/share/crush/`
871 if runtime.GOOS == "windows" {
872 localAppData := cmp.Or(
873 os.Getenv("LOCALAPPDATA"),
874 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
875 )
876 return filepath.Join(localAppData, appName, fmt.Sprintf("%s.json", appName))
877 }
878
879 return filepath.Join(home.Dir(), ".local", "share", appName, fmt.Sprintf("%s.json", appName))
880}
881
882// GlobalWorkspaceDir returns the path to the global server workspace
883// directory. This directory acts as a meta-workspace for the server
884// process, giving it a real workingDir so that config loading, scoped
885// writes, and provider resolution behave identically to project
886// workspaces.
887func GlobalWorkspaceDir() string {
888 return filepath.Dir(GlobalConfigData())
889}
890
891func assignIfNil[T any](ptr **T, val T) {
892 if *ptr == nil {
893 *ptr = &val
894 }
895}
896
897func isInsideWorktree() bool {
898 bts, err := exec.CommandContext(
899 context.Background(),
900 "git", "rev-parse",
901 "--is-inside-work-tree",
902 ).CombinedOutput()
903 return err == nil && strings.TrimSpace(string(bts)) == "true"
904}
905
906// worktreeRoot returns the absolute path of the git working tree root for
907// dir, or the empty string if dir is not inside a working tree (bare
908// repositories, missing git binary, plain directories, or any other
909// failure mode). Linked worktrees and submodules each report their own
910// top-level, which is what callers want when bounding lookups.
911func worktreeRoot(dir string) string {
912 cmd := exec.CommandContext(
913 context.Background(),
914 "git", "rev-parse", "--show-toplevel",
915 )
916 cmd.Dir = dir
917 out, err := cmd.Output()
918 if err != nil {
919 return ""
920 }
921 root := strings.TrimSpace(string(out))
922 if root == "" {
923 return ""
924 }
925 abs, err := filepath.Abs(root)
926 if err != nil {
927 return ""
928 }
929 return abs
930}
931
932// projectBoundary returns the directory at which an upward configuration
933// search rooted at dir should stop. It is the git working tree root when
934// one can be detected, otherwise dir itself. Returning dir as a
935// fallback keeps Crush from silently adopting state files placed above
936// the current project.
937func projectBoundary(dir string) string {
938 if root := worktreeRoot(dir); root != "" {
939 return root
940 }
941 abs, err := filepath.Abs(dir)
942 if err != nil {
943 return dir
944 }
945 return abs
946}
947
948// GlobalSkillsDirs returns the default directories for Agent Skills.
949// Skills in these directories are auto-discovered and their files can be read
950// without permission prompts.
951func GlobalSkillsDirs() []string {
952 if crushSkills := os.Getenv("CRUSH_SKILLS_DIR"); crushSkills != "" {
953 return []string{crushSkills}
954 }
955
956 paths := []string{
957 filepath.Join(home.Config(), appName, "skills"),
958 filepath.Join(home.Config(), "agents", "skills"),
959 // Per the Agent Skills spec, scan ~/.agents/skills
960 filepath.Join(home.Dir(), ".agents", "skills"),
961 filepath.Join(home.Dir(), ".claude", "skills"),
962 }
963
964 // On Windows, also load from app data on top of `$HOME/.config/crush`.
965 // This is here mostly for backwards compatibility.
966 if runtime.GOOS == "windows" {
967 appData := cmp.Or(
968 os.Getenv("LOCALAPPDATA"),
969 filepath.Join(os.Getenv("USERPROFILE"), "AppData", "Local"),
970 )
971 paths = append(
972 paths,
973 filepath.Join(appData, appName, "skills"),
974 filepath.Join(appData, "agents", "skills"),
975 )
976 }
977
978 return paths
979}
980
981// ProjectSkillsDir returns the default project directories for which Crush
982// will look for skills.
983func ProjectSkillsDir(workingDir string) []string {
984 return []string{
985 filepath.Join(workingDir, ".agents/skills"),
986 filepath.Join(workingDir, ".crush/skills"),
987 filepath.Join(workingDir, ".claude/skills"),
988 filepath.Join(workingDir, ".cursor/skills"),
989 }
990}
991
992func isAppleTerminal() bool { return os.Getenv("TERM_PROGRAM") == "Apple_Terminal" }
993
994// normalizeHookEvent maps user-provided event names to their canonical
995// form. Matching is case-insensitive and accepts snake_case variants
996// (e.g. "pre_tool_use" → "PreToolUse").
997func normalizeHookEvent(name string) string {
998 switch strings.ToLower(strings.ReplaceAll(name, "_", "")) {
999 case "pretooluse":
1000 return "PreToolUse"
1001 default:
1002 return name
1003 }
1004}
1005
1006// ValidateHooks normalizes event names and checks that every configured
1007// hook has a command and a syntactically valid matcher regex. Matcher
1008// compilation used for matching is owned by hooks.Runner; this function
1009// only validates up front so the user sees config errors at load time
1010// rather than on the first tool call.
1011func (c *Config) ValidateHooks() error {
1012 // Normalize event name keys.
1013 for event, eventHooks := range c.Hooks {
1014 canonical := normalizeHookEvent(event)
1015 if canonical != event {
1016 c.Hooks[canonical] = append(c.Hooks[canonical], eventHooks...)
1017 delete(c.Hooks, event)
1018 }
1019 }
1020
1021 for event, eventHooks := range c.Hooks {
1022 for i, h := range eventHooks {
1023 if h.Command == "" {
1024 return fmt.Errorf("hook %s[%d]: command is required", event, i)
1025 }
1026 if h.Matcher == "" {
1027 continue
1028 }
1029 if _, err := regexp.Compile(h.Matcher); err != nil {
1030 return fmt.Errorf("hook %s[%d]: invalid matcher regex %q: %w", event, i, h.Matcher, err)
1031 }
1032 }
1033 }
1034 return nil
1035}