config: Split files

1 files changed, 68 insertions, 0 deletions

diff --git a/config/result.go b/config/result.go
new file mode 100644
index 00000000..1f53edc5
--- /dev/null
+++ b/config/result.go
@@ -0,0 +1,68 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+)
+
+// LookupResult is a value returned by Lookup/LookupAll.
+type LookupResult struct {
+	Kind  ValueKind
+	Value string
+}
+
+// String returns the explicit string value.
+func (r LookupResult) String() (string, error) {
+	switch r.Kind {
+	case ValueMissing:
+		return "", errors.New("missing config value")
+	case ValueValueless:
+		return "", errors.New("valueless config key")
+	case ValueString:
+		return r.Value, nil
+	default:
+		return "", fmt.Errorf("unknown value kind %d", r.Kind)
+	}
+}
+
+// Bool interprets this lookup result using Git config boolean rules.
+func (r LookupResult) Bool() (bool, error) {
+	switch r.Kind {
+	case ValueMissing:
+		return false, errors.New("missing config value")
+	case ValueValueless:
+		return true, nil
+	case ValueString:
+		return parseBool(r.Value)
+	default:
+		return false, fmt.Errorf("unknown value kind %d", r.Kind)
+	}
+}
+
+// Int interprets this lookup result as a Git integer value.
+func (r LookupResult) Int() (int, error) {
+	switch r.Kind {
+	case ValueMissing:
+		return 0, errors.New("missing config value")
+	case ValueValueless:
+		return 0, errors.New("valueless config key")
+	case ValueString:
+		return parseInt(r.Value)
+	default:
+		return 0, fmt.Errorf("unknown value kind %d", r.Kind)
+	}
+}
+
+// Int64 interprets this lookup result as a Git int64 value.
+func (r LookupResult) Int64() (int64, error) {
+	switch r.Kind {
+	case ValueMissing:
+		return 0, errors.New("missing config value")
+	case ValueValueless:
+		return 0, errors.New("valueless config key")
+	case ValueString:
+		return parseInt64(r.Value)
+	default:
+		return 0, fmt.Errorf("unknown value kind %d", r.Kind)
+	}
+}