Move BuildCLI function to testutil package

acceptance/acceptance_test.go

@@ -89,8 +89,10 @@ func testAccept(t *testing.T, InprocessMode bool, singleTest string) int {
 		cmdServer := StartCmdServer(t)
 		t.Setenv("CMD_SERVER_URL", cmdServer.URL)
 		execPath = filepath.Join(cwd, "bin", "callserver.py")
+	} else if coverDir != "" {
+		execPath = testutil.BuildCLI(t, "-cover")
 	} else {
-		execPath = BuildCLI(t, cwd, coverDir)
+		execPath = testutil.BuildCLI(t)
 	}
 
 	t.Setenv("CLI", execPath)

internal/testutil/build_cli.go

@@ -0,0 +1,68 @@
+package testutil
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func findRoot(t *testing.T) string {
+	curr, err := os.Getwd()
+	require.NoError(t, err)
+
+	for curr != filepath.Dir(curr) {
+		if _, err := os.Stat(filepath.Join(curr, "go.mod")); err == nil {
+			return curr
+		}
+		curr = filepath.Dir(curr)
+	}
+	require.Fail(t, "could not find root directory")
+	return ""
+}
+
+func BuildCLI(t *testing.T, flags ...string) string {
+	tmpDir := t.TempDir()
+
+	execPath := filepath.Join(tmpDir, "build", "databricks")
+	if runtime.GOOS == "windows" {
+		execPath += ".exe"
+	}
+
+	start := time.Now()
+	args := []string{
+		"go", "build",
+		"-mod", "vendor",
+		"-o", execPath,
+	}
+	if len(flags) > 0 {
+		args = append(args, flags...)
+	}
+
+	if runtime.GOOS == "windows" {
+		// Get this error on my local Windows:
+		// error obtaining VCS status: exit status 128
+		// Use -buildvcs=false to disable VCS stamping.
+		args = append(args, "-buildvcs=false")
+	}
+
+	cmd := exec.Command(args[0], args[1:]...)
+	cmd.Dir = findRoot(t)
+	out, err := cmd.CombinedOutput()
+	elapsed := time.Since(start)
+	t.Logf("%s took %s", args, elapsed)
+	require.NoError(t, err, "go build failed: %s: %s\n%s", args, err, out)
+	if len(out) > 0 {
+		t.Logf("go build output: %s: %s", args, out)
+	}
+
+	// Quick check + warm up cache:
+	cmd = exec.Command(execPath, "--version")
+	out, err = cmd.CombinedOutput()
+	require.NoError(t, err, "%s --version failed: %s\n%s", execPath, err, out)
+	return execPath
+}