Remove explicit -work-dir argument (source from env)

Author: RomainMuller

tool/cmd/main.go

@@ -15,8 +15,7 @@ import (
 )
 
 const (
-	exitCodeFailure    = -1
-	exitCodeUsageError = 2
+	exitCodeFailure = -1
 
 	debugLogFilename = "debug.log"
 )
@@ -33,6 +32,7 @@ func main() {
 				Usage:     "The path to a directory where working files will be written",
 				TakesFile: true,
 				Value:     filepath.Join(".", util.BuildTempDir),
+				Sources:   cli.NewValueSourceChain(cli.EnvVar(util.EnvOtelWorkDir)),
 			},
 		},
 		Commands: []*cli.Command{

tool/internal/setup/setup.go

@@ -89,7 +89,7 @@ func BuildWithToolexec(ctx context.Context, args []string) error {
 	if err != nil {
 		return ex.Errorf(err, "failed to get executable path")
 	}
-	insert := "-toolexec=" + execPath + " --work-dir=" + util.GetOtelWorkDir() + " toolexec"
+	insert := "-toolexec=" + execPath + " toolexec"
 	const additionalCount = 2
 	newArgs := make([]string, 0, len(args)+additionalCount) // Avoid in-place modification
 	newArgs = append(newArgs, "go")