forcing a go.mod-based build check

Author: Groxx

Makefile

@@ -278,6 +278,14 @@ build: $(BUILD)/fmt ## ensure all packages build
 	go build ./...
 	$Q # caution: some errors are reported on stdout for some reason
 	go test -exec true ./... >/dev/null
+	$Q # compare the current go version with what is in go.mod, and get `{gomod_version}.1` or similar and ensure it builds.
+	$Q GOVERSION="$(shell go env GOVERSION | cut -d. -f1-2)" \
+		MODVERSION="go$(shell grep '^go 1' go.mod | cut -d' ' -f2)"; \
+		if [[ "$$GOVERSION" != "$$MODVERSION" ]]; then \
+		echo "go.mod version \"$$MODVERSION\" is not the same as current go version \"$$GOVERSION\", making sure it builds..."; \
+		echo GOTOOLCHAIN="$$MODVERSION".1 go build ./...; \
+		GOTOOLCHAIN="$$MODVERSION".1 go build ./...; \
+	fi
 
 .PHONY: lint
 # useful to actually re-run to get output again.

workflow/workflow.go

@@ -21,26 +21,13 @@
 package workflow
 
 import (
-	"fmt"
-
 	"github.com/uber-go/tally"
 	"go.uber.org/zap"
 
 	"go.uber.org/cadence/encoded"
 	"go.uber.org/cadence/internal"
-
-	"testing"
-	"weak"
 )
 
-func init() {
-	var s string
-	sp := weak.Make(&s)
-	fmt.Println(sp)
-
-	_ = (&testing.T{}).Context()
-}
-
 type (
 
 	// ChildWorkflowFuture represents the result of a child workflow execution