RefactorHEADmaster

1 files changed, 42 insertions, 0 deletions

diff --git a/forged/internal/common/misc/net.go b/forged/internal/common/misc/net.go
new file mode 100644
index 0000000..967ea77
--- /dev/null
+++ b/forged/internal/common/misc/net.go
@@ -0,0 +1,42 @@
+package misc
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"syscall"
+)
+
+func ListenUnixSocket(ctx context.Context, path string) (listener net.Listener, replaced bool, err error) {
+	listenConfig := net.ListenConfig{} //exhaustruct:ignore
+	listener, err = listenConfig.Listen(ctx, "unix", path)
+	if errors.Is(err, syscall.EADDRINUSE) {
+		replaced = true
+		unlinkErr := syscall.Unlink(path)
+		if unlinkErr != nil {
+			return listener, false, fmt.Errorf("remove existing socket %q: %w", path, unlinkErr)
+		}
+		listener, err = listenConfig.Listen(ctx, "unix", path)
+	}
+	if err != nil {
+		return listener, replaced, fmt.Errorf("listen on unix socket %q: %w", path, err)
+	}
+	return listener, replaced, nil
+}
+
+func Listen(ctx context.Context, net_, addr string) (listener net.Listener, err error) {
+	if net_ == "unix" {
+		listener, _, err = ListenUnixSocket(ctx, addr)
+		if err != nil {
+			return listener, fmt.Errorf("listen unix socket for web: %w", err)
+		}
+	} else {
+		listenConfig := net.ListenConfig{} //exhaustruct:ignore
+		listener, err = listenConfig.Listen(ctx, net_, addr)
+		if err != nil {
+			return listener, fmt.Errorf("listen %s for web: %w", net_, err)
+		}
+	}
+	return listener, nil
+}