feat: migrations

server/internal/database/sqlite.go

@@ -2,30 +2,15 @@ package database
 
 import (
 	"database/sql"
-	"os"
-	"path/filepath"
+	"net/url"
+	"regexp"
 
 	"github.com/stephenafamo/bob"
 	_ "modernc.org/sqlite" // Sqlite
 )
 
-func NewSQLiteConnection(name string) (*bob.DB, error) {
-	// Find config diretory
-	configDir, err := os.UserConfigDir()
-	if err != nil {
-		return nil, err
-	}
-
-	// Create database directory if not exists
-	settingsPath := filepath.Join(configDir, "trevstack")
-	err = os.MkdirAll(settingsPath, 0766)
-	if err != nil {
-		return nil, err
-	}
-
-	// Open database
-	dbPath := filepath.Join(settingsPath, name)
-	db, err := sql.Open("sqlite", dbPath)
+func NewSQLiteConnection(url *url.URL) (*bob.DB, error) {
+	db, err := sql.Open("sqlite", sqliteConnectionString(url))
 	if err != nil {
 		return nil, err
 	}
@@ -35,3 +20,47 @@ func NewSQLiteConnection(name string) (*bob.DB, error) {
 
 	return &bobdb, nil
 }
+
+// ConnectionString converts a URL into a valid connection string
+func sqliteConnectionString(u *url.URL) string {
+	// duplicate URL and remove scheme
+	newURL := *u
+	newURL.Scheme = ""
+
+	if newURL.Opaque == "" && newURL.Path != "" {
+		// When the DSN is in the form "scheme:/absolute/path" or
+		// "scheme://absolute/path" or "scheme:///absolute/path", url.Parse
+		// will consider the file path as :
+		// - "absolute" as the hostname
+		// - "path" (and the rest until "?") as the URL path.
+		// Instead, when the DSN is in the form "scheme:", the (relative) file
+		// path is stored in the "Opaque" field.
+		// See: https://pkg.go.dev/net/url#URL
+		//
+		// While Opaque is not escaped, the URL Path is. So, if .Path contains
+		// the file path, we need to un-escape it, and rebuild the full path.
+
+		newURL.Opaque = "//" + newURL.Host + mustUnescapePath(newURL.Path)
+		newURL.Path = ""
+	}
+
+	// trim duplicate leading slashes
+	str := regexp.MustCompile("^//+").ReplaceAllString(newURL.String(), "/")
+
+	return str
+}
+
+// MustUnescapePath unescapes a URL path, and panics if it fails.
+// It is used during in cases where we are parsing a generated path.
+func mustUnescapePath(s string) string {
+	if s == "" {
+		panic("missing path")
+	}
+
+	path, err := url.PathUnescape(s)
+	if err != nil {
+		panic(err)
+	}
+
+	return path
+}