feat: overwrite Cmd.Run to set defaults (#74)

types/command.go

@@ -1,8 +1,52 @@
 package types
 
-import "golang.org/x/sys/execabs"
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"golang.org/x/sys/execabs"
+)
 
 type Cmd struct {
 	*execabs.Cmd
 	Private bool
+	Trace   *bool
+}
+
+func (c *Cmd) Run() error {
+	if c.Trace == nil {
+		c.SetTrace(true)
+	}
+
+	if c.Env == nil {
+		c.Env = os.Environ()
+	}
+
+	if c.Stdout == nil {
+		c.Stdout = os.Stdout
+	}
+
+	if c.Stderr == nil {
+		c.Stderr = os.Stderr
+	}
+
+	if c.Private {
+		c.Stdout = io.Discard
+	}
+
+	if *c.Trace {
+		fmt.Fprintf(os.Stdout, "+ %s\n", strings.Join(c.Args, " "))
+	}
+
+	if err := c.Start(); err != nil {
+		return err
+	}
+
+	return c.Wait()
+}
+
+func (c *Cmd) SetTrace(trace bool) {
+	c.Trace = &trace
 }