v2 restructure: Go client, Docker engine, release tooling

- Remove v1 Python CLI (src/kb_search/, tests/, root pyproject.toml, uv.lock, .venv) - Add Go client with cross-platform build (client/) - Add FastAPI engine with NVIDIA and multi-stage ROCm Dockerfiles (engine/) - Add VERSION files for client and engine, wired into builds - Add release.sh for automated build, tag, release, and Docker push - Update README with build/release docs and ROCm migration note - Clean up .gitignore for v2 project structure Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 21:52:25 +00:00
parent 2030976b85
commit 9aab79d49b
98 changed files with 4526 additions and 7776 deletions
@@ -0,0 +1,82 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"sync"
+
+	"gopkg.in/yaml.v3"
+)
+
+// Config holds all client configuration.
+type Config struct {
+	EngineURL     string `yaml:"engine_url"`
+	APIKey        string `yaml:"api_key"`
+	DefaultFormat string `yaml:"default_format"`
+}
+
+var (
+	cfg  Config
+	once sync.Once
+)
+
+// Load reads configuration from ~/.kb/client.yaml, then applies environment
+// variable overrides. Defaults are applied first.
+func Load() error {
+	var loadErr error
+	once.Do(func() {
+		// Defaults
+		cfg = Config{
+			EngineURL:     "http://localhost:8000",
+			DefaultFormat: "human",
+		}
+
+		// Read config file if it exists
+		home, err := os.UserHomeDir()
+		if err == nil {
+			path := filepath.Join(home, ".kb", "client.yaml")
+			data, err := os.ReadFile(path)
+			if err == nil {
+				var fileCfg Config
+				if err := yaml.Unmarshal(data, &fileCfg); err == nil {
+					if fileCfg.EngineURL != "" {
+						cfg.EngineURL = fileCfg.EngineURL
+					}
+					if fileCfg.APIKey != "" {
+						cfg.APIKey = fileCfg.APIKey
+					}
+					if fileCfg.DefaultFormat != "" {
+						cfg.DefaultFormat = fileCfg.DefaultFormat
+					}
+				}
+			}
+		}
+
+		// Environment variable overrides
+		if v := os.Getenv("KB_ENGINE_URL"); v != "" {
+			cfg.EngineURL = v
+		}
+		if v := os.Getenv("KB_API_KEY"); v != "" {
+			cfg.APIKey = v
+		}
+	})
+	return loadErr
+}
+
+// Get returns the loaded configuration singleton.
+func Get() *Config {
+	return &cfg
+}
+
+// ApplyFlags overrides configuration with CLI flag values (only if non-empty).
+func ApplyFlags(engine, format, apiKey string) {
+	if engine != "" {
+		cfg.EngineURL = engine
+	}
+	if format != "" {
+		cfg.DefaultFormat = format
+	}
+	if apiKey != "" {
+		cfg.APIKey = apiKey
+	}
+}