feat: add native Grok hook integration

cmd/elydora/plugins/grok.go

@@ -0,0 +1,113 @@
+package plugins
+
+import "fmt"
+
+// GrokPlugin manages Grok Build native global user hooks.
+type GrokPlugin struct{}
+
+func (p *GrokPlugin) Install(config InstallConfig) error {
+	if config.AgentID == "" {
+		return fmt.Errorf("agent ID is required")
+	}
+	document, err := readGrokConfig()
+	if err != nil {
+		return err
+	}
+	if config.GuardScriptPath == "" {
+		return fmt.Errorf("guard script path is required")
+	}
+	guardExists, err := regularFileExists(config.GuardScriptPath, "Elydora guard runtime")
+	if err != nil {
+		return err
+	}
+	if !guardExists {
+		return fmt.Errorf("Elydora guard runtime is missing: %s", config.GuardScriptPath)
+	}
+	hookPath, err := hookScriptPath(config.AgentID)
+	if err != nil {
+		return err
+	}
+	if config.HookScript != "" {
+		hookPath = config.HookScript
+	}
+	nodePath, err := resolveNodeRuntime()
+	if err != nil {
+		return err
+	}
+	runtimeRoot, err := grokRuntimeRoot()
+	if err != nil {
+		return err
+	}
+	hooks, _ := removeManagedGrokHooks(document.hooks, "", runtimeRoot)
+	hooks["PreToolUse"] = append(hooks["PreToolUse"], buildGrokGroup(
+		buildGrokHandler(buildGrokCommand(nodePath, config.GuardScriptPath)),
+	))
+	hooks["PostToolUse"] = append(hooks["PostToolUse"], buildGrokGroup(
+		buildGrokHandler(buildGrokCommand(nodePath, hookPath)),
+	))
+	next := cloneGrokObject(document.root)
+	next["hooks"] = renderGrokHooks(hooks)
+
+	runtimeConfig := config
+	runtimeConfig.AgentName = grokAgentKey
+	if err := GenerateHookScript(hookPath, runtimeConfig); err != nil {
+		return fmt.Errorf("generate hook script: %w", err)
+	}
+	if err := writeHookJSONObjectAtomic(document.configPath, next); err != nil {
+		return fmt.Errorf("write Grok hooks config: %w", err)
+	}
+	fmt.Println("Grok Build: global PreToolUse and PostToolUse hooks installed.")
+	return nil
+}
+
+func (p *GrokPlugin) Uninstall(agentID string) error {
+	document, err := readGrokConfig()
+	if err != nil || !document.exists {
+		return err
+	}
+	runtimeRoot, err := grokRuntimeRoot()
+	if err != nil {
+		return err
+	}
+	hooks, changed := removeManagedGrokHooks(document.hooks, agentID, runtimeRoot)
+	if !changed {
+		return nil
+	}
+	next := cloneGrokObject(document.root)
+	if len(hooks) == 0 {
+		delete(next, "hooks")
+	} else {
+		next["hooks"] = renderGrokHooks(hooks)
+	}
+	if len(next) == 0 {
+		return removeHookFile(document.configPath, "Grok hooks config")
+	}
+	return writeHookJSONObjectAtomic(document.configPath, next)
+}
+
+func (p *GrokPlugin) Status() (PluginStatus, error) {
+	document, err := readGrokConfig()
+	status := PluginStatus{
+		AgentName:   grokAgentKey,
+		DisplayName: "Grok Build",
+		ConfigPath:  document.configPath,
+	}
+	if err != nil {
+		return status, err
+	}
+	runtimeRoot, err := grokRuntimeRoot()
+	if err != nil {
+		return status, err
+	}
+	contracts := grokRuntimeContracts(document.hooks, runtimeRoot)
+	if len(contracts) == 0 {
+		return status, nil
+	}
+	status.HookConfigured = true
+	status.HookScriptExists, err = grokRuntimeScriptsExist(contracts, runtimeRoot)
+	if err != nil {
+		return status, err
+	}
+	status.Installed = status.HookScriptExists
+	return status, nil
+}