Stage3 Image Library

This represents the stage3 implementation for the image library.  At this point, we
are moving the image-centric functions to pkg/image including migration of args and
object-oriented references.  This is a not a one-for-one migration of funcs and some
funcs will need to continue to reside in runtime_img as they are overly specific to
libpod and probably not useful to others.

Signed-off-by: baude <bbaude@redhat.com>

Closes: #484
Approved by: baude

2 files changed, 29 insertions, 0 deletions

diff --git a/pkg/util/utils.go b/pkg/util/utils.go
index 9a93021e4..edcf63f80 100644
--- a/pkg/util/utils.go
+++ b/pkg/util/utils.go
@@ -44,3 +44,13 @@ func ParseRegistryCreds(creds string) (*types.DockerAuthConfig, error) {
 		Password: password,
 	}, nil
 }
+
+// StringInSlice determines if a string is in a string slice, returns bool
+func StringInSlice(s string, sl []string) bool {
+	for _, i := range sl {
+		if i == s {
+			return true
+		}
+	}
+	return false
+}
diff --git a/pkg/util/utils_test.go b/pkg/util/utils_test.go
new file mode 100644
index 000000000..f47c0b7ad
--- /dev/null
+++ b/pkg/util/utils_test.go
@@ -0,0 +1,19 @@
+package util
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+var (
+	sliceData = []string{"one", "two", "three", "four"}
+)
+
+func TestStringInSlice(t *testing.T) {
+	// string is in the slice
+	assert.True(t, StringInSlice("one", sliceData))
+	// string is not in the slice
+	assert.False(t, StringInSlice("five", sliceData))
+	// string is not in empty slice
+	assert.False(t, StringInSlice("one", []string{}))
+}