pkg/vcs: make EnvForCommit return full compiler path

All callers of EnvForCommit need the compiler path,
so move this logic into EnvForCommit to avoid duplication.
Also simplifies tests because test impl can now return
an empty compiler (which should be unused).

1 files changed, 1 insertions, 1 deletions

diff --git a/pkg/build/build.go b/pkg/build/build.go
index 7fce681df..d4126b6e6 100644
--- a/pkg/build/build.go
+++ b/pkg/build/build.go
@@ -93,7 +93,7 @@ func getBuilder(targetOS, targetArch, vmType string) (builder, error) {
 	return nil, fmt.Errorf("unsupported image type %v/%v/%v", targetOS, targetArch, vmType)
 }
 
-var CompilerIdentity = func(compiler string) (string, error) {
+func CompilerIdentity(compiler string) (string, error) {
 	if compiler == "" {
 		return "", nil
 	}