snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)

gomod_test.go

@@ -0,0 +1,66 @@
+package sqlc
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"testing"
+)
+
+// TestGoModHasNoReplaceDirectives guards against regressions of
+// https://github.com/sqlc-dev/sqlc/issues/4397.
+//
+// When go.mod contains a replace directive, the Go toolchain refuses to run
+// `go install github.com/sqlc-dev/sqlc/cmd/sqlc@latest` (and the equivalent
+// `go run ...@latest`):
+//
+//	go: github.com/sqlc-dev/sqlc/cmd/sqlc@latest (in github.com/sqlc-dev/sqlc@v...):
+//	    The go.mod file for the module providing named packages contains one or
+//	    more replace directives. It must not contain directives that would cause
+//	    it to be interpreted differently than if it were the main module.
+//
+// https://docs.sqlc.dev/en/latest/overview/install.html tells users to run
+// exactly that command, so any replace directive slipping into go.mod breaks
+// the advertised installation path for the next release.
+func TestGoModHasNoReplaceDirectives(t *testing.T) {
+	data, err := os.ReadFile("go.mod")
+	if err != nil {
+		t.Fatalf("read go.mod: %v", err)
+	}
+
+	var (
+		inBlock   bool
+		offenders []string
+	)
+	for i, raw := range strings.Split(string(data), "\n") {
+		line := strings.TrimSpace(raw)
+		if idx := strings.Index(line, "//"); idx >= 0 {
+			line = strings.TrimSpace(line[:idx])
+		}
+
+		if inBlock {
+			if line == ")" {
+				inBlock = false
+				continue
+			}
+			if line != "" {
+				offenders = append(offenders, fmt.Sprintf("  go.mod:%d: %s", i+1, raw))
+			}
+			continue
+		}
+
+		switch {
+		case line == "replace (":
+			inBlock = true
+		case strings.HasPrefix(line, "replace "):
+			offenders = append(offenders, fmt.Sprintf("  go.mod:%d: %s", i+1, raw))
+		}
+	}
+
+	if len(offenders) > 0 {
+		t.Fatalf("go.mod must not contain replace directives; "+
+			"they break `go install github.com/sqlc-dev/sqlc/cmd/sqlc@latest`.\n"+
+			"See https://github.com/sqlc-dev/sqlc/issues/4397\n%s",
+			strings.Join(offenders, "\n"))
+	}
+}