Add podman system prune and info commands

We are missing the equivalence of the docker system commands

This patch set adds `podman system prune`
and `podman system info`

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

1 files changed, 20 insertions, 17 deletions

diff --git a/cmd/podman/containers_prune.go b/cmd/podman/containers_prune.go
index 92604e82f..09141e9a3 100644
--- a/cmd/podman/containers_prune.go
+++ b/cmd/podman/containers_prune.go
@@ -1,9 +1,11 @@
 package main
 
 import (
-	"github.com/containers/libpod/cmd/podman/libpodruntime"
+	"context"
+
 	"github.com/containers/libpod/cmd/podman/shared"
 	"github.com/containers/libpod/libpod"
+	"github.com/containers/libpod/libpod/adapter"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
@@ -25,20 +27,11 @@ var (
 	}
 )
 
-func pruneContainersCmd(c *cli.Context) error {
-	var (
-		deleteFuncs []shared.ParallelWorkerInput
-	)
-
-	ctx := getContext()
-	runtime, err := libpodruntime.GetRuntime(c)
-	if err != nil {
-		return errors.Wrapf(err, "could not get runtime")
-	}
-	defer runtime.Shutdown(false)
+func pruneContainers(runtime *adapter.LocalRuntime, ctx context.Context, maxWorkers int, force bool) error {
+	var deleteFuncs []shared.ParallelWorkerInput
 
 	filter := func(c *libpod.Container) bool {
-		state, _ := c.State()
+		state, err := c.State()
 		if state == libpod.ContainerStateStopped || (state == libpod.ContainerStateExited && err == nil && c.PodID() == "") {
 			return true
 		}
@@ -54,7 +47,7 @@ func pruneContainersCmd(c *cli.Context) error {
 	for _, container := range delContainers {
 		con := container
 		f := func() error {
-			return runtime.RemoveContainer(ctx, con, c.Bool("force"))
+			return runtime.RemoveContainer(ctx, con, force)
 		}
 
 		deleteFuncs = append(deleteFuncs, shared.ParallelWorkerInput{
@@ -62,13 +55,23 @@ func pruneContainersCmd(c *cli.Context) error {
 			ParallelFunc: f,
 		})
 	}
+	// Run the parallel funcs
+	deleteErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, deleteFuncs)
+	return printParallelOutput(deleteErrors, errCount)
+}
+
+func pruneContainersCmd(c *cli.Context) error {
+	runtime, err := adapter.GetRuntime(c)
+	if err != nil {
+		return errors.Wrapf(err, "could not get runtime")
+	}
+	defer runtime.Shutdown(false)
+
 	maxWorkers := shared.Parallelize("rm")
 	if c.GlobalIsSet("max-workers") {
 		maxWorkers = c.GlobalInt("max-workers")
 	}
 	logrus.Debugf("Setting maximum workers to %d", maxWorkers)
 
-	// Run the parallel funcs
-	deleteErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, deleteFuncs)
-	return printParallelOutput(deleteErrors, errCount)
+	return pruneContainers(runtime, getContext(), maxWorkers, c.Bool("force"))
 }