Initial step path contexts commit

- move config and command packages to cli-utils

command/path/path.go

@@ -3,21 +3,101 @@ package path
 import (
 	"fmt"
 
-	"github.com/smallstep/cli/command"
-	"github.com/smallstep/cli/config"
 	"github.com/urfave/cli"
+	"go.step.sm/cli-utils/command"
+	"go.step.sm/cli-utils/step"
 )
 
 func init() {
 	cmd := cli.Command{
 		Name:      "path",
 		Usage:     "print the configured step path and exit",
-		UsageText: "step path",
+		UsageText: "**step path** [**--base**] [**--profile**]",
 		Description: `**step path** command prints the configured step path and exits.
 
-The default step path of $HOME/.step can be overridden with the **STEPPATH** environment variable.`,
+When using contexts to manage 'step-ca' environments, this command will return
+the current authority path. If no current context is configured this command the
+default step path of $HOME/.step, which can be overridden with the **STEPPATH**
+environment variable.
+
+## EXAMPLES
+
+Get the path with no current context configured:
+'''
+$ step path
+/Users/max/.step
+'''
+
+Get the path with no current context and environment variable STEPPATH overriding the default:
+'''
+$ export STEPPATH=/tmp/step
+$ step path
+/tmp/step
+'''
+
+Get the path with a current context (configured at $STEPPATH/current-context.json):
+'''
+$ cat $(step path --base)/current-context.json
+{"context": "machine.step-internal.net"}
+
+$ step path
+/Users/max/.step/authorities/machine.step-internal.net
+'''
+
+Get the base path:
+'''
+$ step path --base
+/Users/max/.step
+'''
+
+Get the base path with environment variable STEPPATH overriding the default:
+'''
+$ export STEPPATH=/tmp/step
+$ step path --base
+/tmp/step
+'''
+
+Get the path of the current profile:
+'''
+$ cat $(step path --base)/current-context.json
+{"context": "ca.acme.net"}
+
+$ cat $(step path --base)/contexts.json
+{
+	"ca.beta.net": {
+        "profile": "beta-corp",
+        "authority": "machine.beta.net"
+    },
+	"ca.acme.net": {
+        "profile": "example-corp",
+        "authority": "machine.acme.net"
+    }
+
+}
+$ step path --profile
+/Users/max/.step/profiles/beta-corp
+'''
+`,
+		Flags: []cli.Flag{
+			cli.BoolFlag{
+				Name:  "base",
+				Usage: "Return the base of the step path",
+			},
+			cli.BoolFlag{
+				Name:  "profile",
+				Usage: "Return the base path of the currently configured default profile",
+			},
+		},
 		Action: cli.ActionFunc(func(ctx *cli.Context) error {
-			fmt.Println(config.StepPath())
+			if ctx.Bool("base") {
+				fmt.Println(step.BasePath())
+				return nil
+			}
+			if ctx.Bool("profile") {
+				fmt.Println(step.ProfilePath())
+				return nil
+			}
+			fmt.Println(step.Path())
 			return nil
 		}),
 	}