init

wasmbuild/gen-overlay.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+# Generates the -overlay JSON that swaps the three sing source files that pull in
+# golang.org/x/sys/unix (unavailable for GOARCH=wasm) for wasm-safe stubs in
+# ./_stubs. Only the js/wasm build uses this overlay; native builds and tests are
+# unaffected. The stubs live in an underscore-prefixed directory so the go tool
+# ignores them during ./... builds (they carry mixed package names). See
+# _stubs/*.go for the rationale of each substitution.
+set -euo pipefail
+
+here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+sing="$(cd "$here/.." && go list -m -f '{{.Dir}}' github.com/sagernet/sing)"
+
+cat <<JSON
+{
+  "Replace": {
+    "$sing/common/buf/buffer_unix.go": "$here/_stubs/buf_buffer_unix.go",
+    "$sing/common/bufio/vectorised_unix.go": "$here/_stubs/bufio_vectorised_unix.go",
+    "$sing/common/bufio/copy_direct_posix.go": "$here/_stubs/bufio_copy_direct_posix.go"
+  }
+}
+JSON