[crossbuild] Fix path separators (#3310)

* Fix path separators * Use filepath.ToSlash
elastic · Sep 5, 2023 · c3dc575 · c3dc575
1 parent f65ee06
commit c3dc575
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/dev-tools/mage/crossbuild.go b/dev-tools/mage/crossbuild.go
@@ -271,6 +271,11 @@ func (b GolangCrossBuilder) Build() error {
 		return fmt.Errorf("failed to determine mage-linux-%s relative path: %w", builderArch, err)
 	}
 
+	// If we're running this mage target on Windows, the path separator used in
+	// buildCmd will be `\`. But the buildCmd is executed inside a Linux Docker
+	// container. So we ensure that all path separators are `/`.
+	buildCmd = filepath.ToSlash(buildCmd)
+
 	dockerRun := sh.RunCmd("docker", "run")
 	image, err := b.ImageSelector(b.Platform)
 	if err != nil {