Allow building with Tinygo

.github/workflows/test.yml

@@ -40,6 +40,34 @@ jobs:
  - name: Test as root, without cgo, and with busybox
  run: docker run -v="$PWD:/pwd" -w=/pwd -e=CGO_ENABLED=0 golang:1.22.0-alpine go test ./...
 
+ test-tinygo:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v4
+ - name: Install Tinygo
+ uses: acifani/setup-tinygo@v2
+ with:
+ tinygo-version: 0.32.0
+
+ - name: Create temporary main package
+ run: |
+ mkdir _tinygo && cat<<EOF > _tinygo/main.go
+ package main
+
+ import (
+ _ "mvdan.cc/sh/v3/expand"
+ _ "mvdan.cc/sh/v3/interp"
+ _ "mvdan.cc/sh/v3/syntax"
+ )
+
+ func main() {}
+ EOF
+
+ - name: Build with Tinygo natively
+ run: tinygo build -o /dev/null ./_tinygo
+ - name: Build with Tinygo on WASM
+ run: tinygo build -o /dev/null -target wasm ./_tinygo
+
  docker:
  name: Build and test Docker images
  # Only deploy if previous stages pass.

internal/tinygostub/samefile.go

@@ -0,0 +1,10 @@
+//go:build !(tinygo && wasm)
+
+package tinygostub
+
+import "os"
+
+// SameFile calls [os.SameFile].
+func SameFile(fi1, fi2 os.FileInfo) bool {
+ return os.SameFile(fi1, fi2)
+}

internal/tinygostub/samefile_tinygo_wasm.go

@@ -0,0 +1,10 @@
+//go:build tinygo && wasm
+
+package tinygostub
+
+import "os"
+
+// SameFile returns false.
+func SameFile(fi1, fi2 os.FileInfo) bool {
+ return false
+}

interp/test.go

@@ -13,6 +13,7 @@ import (
  "golang.org/x/term"
 
  "mvdan.cc/sh/v3/expand"
+ "mvdan.cc/sh/v3/internal/tinygostub"
  "mvdan.cc/sh/v3/syntax"
 )
 
@@ -88,7 +89,7 @@ func (r *Runner) binTest(ctx context.Context, op syntax.BinTestOperator, x, y st
  if err1 != nil || err2 != nil {
  return false
  }
- return os.SameFile(info1, info2)
+ return tinygostub.SameFile(info1, info2)
  case syntax.TsEql:
  return atoi(x) == atoi(y)
  case syntax.TsNeq: