1 files changed, 39 insertions, 0 deletions
diff --git a/repository/open_config.go b/repository/open_config.go
new file mode 100644
index 00000000..fcc9793c
--- /dev/null
+++ b/repository/open_config.go
@@ -0,0 +1,39 @@
+package repository
+
+import (
+	"fmt"
+	"os"
+
+	"codeberg.org/lindenii/furgit/config"
+	"codeberg.org/lindenii/furgit/objectid"
+)
+
+func parseRepositoryConfig(root *os.Root) (*config.Config, error) {
+	configFile, err := root.Open("config")
+	if err != nil {
+		return nil, fmt.Errorf("repository: open config: %w", err)
+	}
+
+	defer func() { _ = configFile.Close() }()
+
+	cfg, err := config.ParseConfig(configFile)
+	if err != nil {
+		return nil, fmt.Errorf("repository: parse config: %w", err)
+	}
+
+	return cfg, nil
+}
+
+func detectObjectAlgorithm(cfg *config.Config) (objectid.Algorithm, error) {
+	algoName := cfg.Lookup("extensions", "", "objectformat").Value
+	if algoName == "" {
+		algoName = objectid.AlgorithmSHA1.String()
+	}
+
+	algo, ok := objectid.ParseAlgorithm(algoName)
+	if !ok {
+		return objectid.AlgorithmUnknown, fmt.Errorf("repository: unsupported object format %q", algoName)
+	}
+
+	return algo, nil
+}