From d6549ea16d45c9a839cbabcdefc7afb473f9e146 Mon Sep 17 00:00:00 2001
From: Alex Goodman <wagoodman@gmail.com>
Date: Sat, 20 Oct 2018 07:42:01 -0400
Subject: pull images when not found (closes #25); small fixes

---
 utils/docker.go | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 utils/docker.go

(limited to 'utils')

diff --git a/utils/docker.go b/utils/docker.go
new file mode 100644
index 0000000..339b0a9
--- /dev/null
+++ b/utils/docker.go
@@ -0,0 +1,33 @@
+package utils
+
+import (
+	"os/exec"
+	"os"
+	"strings"
+)
+
+// RunDockerCmd runs a given Docker command in the current tty
+func RunDockerCmd(cmdStr string, args ...string) error {
+
+	allArgs := cleanArgs(append([]string{cmdStr}, args...))
+
+	cmd := exec.Command("docker", allArgs...)
+
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Stdin = os.Stdin
+
+	return cmd.Run()
+}
+
+// cleanArgs trims the whitespace from the given set of strings.
+func cleanArgs(s []string) []string {
+	var r []string
+	for _, str := range s {
+		if str != "" {
+			r = append(r, strings.Trim(str, " "))
+		}
+	}
+	return r
+}
+
-- 
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