Added command to clear glide cache

action/cache.go

diff --git a/action/cache.go b/action/cache.go
new file mode 100644
index 0000000..9896f21
--- /dev/null
+++ b/action/cache.go
@@ -0,0 +1,29 @@
+package action
+
+import (
+	"os"
+
+	"github.com/Masterminds/glide/cache"
+	"github.com/Masterminds/glide/msg"
+)
+
+// CacheClear clears the Glide cache
+func CacheClear() {
+	l, err := cache.Location()
+	if err != nil {
+		msg.Die("Unable to clear the cache: %s", err)
+	}
+
+	err = os.RemoveAll(l)
+	if err != nil {
+		msg.Die("Unable to clear the cache: %s", err)
+	}
+
+	cache.SetupReset()
+	err = cache.Setup()
+	if err != nil {
+		msg.Die("Unable to clear the cache: %s", err)
+	}
+
+	msg.Info("Glide cache has been cleared.")
+}

cache/cache.go

diff --git a/cache/cache.go b/cache/cache.go
index 5d6a49d..55b059a 100644
--- a/cache/cache.go
+++ b/cache/cache.go
@@ -27,7 +27,8 @@
 
 var setupMutex sync.Mutex
 
-func setup() error {
+// Setup creates the cache location.
+func Setup() error {
 	setupMutex.Lock()
 	defer setupMutex.Unlock()
 
@@ -52,10 +53,16 @@
 	return nil
 }
 
+// SetupReset resets if setup has been completed. The next time setup is run
+// it will attempt a full setup.
+func SetupReset() {
+	isSetup = false
+}
+
 // Location returns the location of the cache.
 func Location() (string, error) {
 	p := filepath.Join(gpath.Home(), "cache")
-	err := setup()
+	err := Setup()
 
 	return p, err
 }

glide.go

diff --git a/glide.go b/glide.go
index 2f75f07..a9f43ea 100644
--- a/glide.go
+++ b/glide.go
@@ -639,6 +639,14 @@
 			},
 		},
 		{
+			Name:      "cache-clear",
+			ShortName: "cc",
+			Usage:     "Clears the Glide cache.",
+			Action: func(c *cli.Context) {
+				action.CacheClear()
+			},
+		},
+		{
 			Name:  "about",
 			Usage: "Learn about Glide",
 			Action: func(c *cli.Context) {