s

common/config.go

@@ -0,0 +1,67 @@
+package common
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync/atomic"
+)
+
+// Config carries the daemon's startup params. The server needs the git root to
+// open repos and the rest to answer the Status RPC (which also hands gitctl the
+// db_uri so it can connect directly for inspection reads).
+type Config struct {
+	Root       string
+	RPCAddr    string
+	SSHAddr    string
+	ManageAddr string
+	AuthURL    string
+	DBUri      string
+	SkipAuth   bool
+
+	prepared atomic.Bool
+	driver   string
+	dsn      string
+}
+
+func (c *Config) RepoRoot() string {
+	return filepath.Join(c.Root, "repos")
+}
+
+// Prepare checks that the config is valid and creates the repo root if needed.
+func (c *Config) Prepare() error {
+	var err error
+	if c.DBUri == "" && c.SkipAuth == false {
+		return errors.New("simplegit: -db is required unless -skip-auth (e.g. sqlite://state.db)")
+	}
+	if err := os.MkdirAll(c.RepoRoot(), 0o755); err != nil {
+		return fmt.Errorf("simplegit: Failed to create data root: %s (%v)", c.RepoRoot(), err)
+	}
+	c.driver, c.dsn, c.DBUri, err = ParseDBURI(c.Root, c.DBUri)
+	if err != nil {
+		return errors.New("simplegit: ParseDBURI failed")
+	}
+	if c.RPCAddr == "" {
+		return errors.New("simplegit: -rpc is required (the HTTP server is this binary's only listener)")
+	}
+	if c.ManageAddr == "" {
+		return fmt.Errorf("*manageAddr == nil")
+	}
+	c.prepared.Store(true)
+	return nil
+}
+
+func (c *Config) Driver() string {
+	if !c.prepared.Load() {
+		panic("Config.Driver called before Prepare")
+	}
+	return c.driver
+}
+
+func (c *Config) DSN() string {
+	if !c.prepared.Load() {
+		panic("Config.DSN called before Prepare")
+	}
+	return c.dsn
+}