Initial checkin from CRI-O repo

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

1 files changed, 135 insertions, 0 deletions

diff --git a/cmd/kpod/common.go b/cmd/kpod/common.go
new file mode 100644
index 000000000..f77b3fd1e
--- /dev/null
+++ b/cmd/kpod/common.go
@@ -0,0 +1,135 @@
+package main
+
+import (
+	"os"
+	"reflect"
+	"regexp"
+	"strings"
+
+	is "github.com/containers/image/storage"
+	"github.com/containers/storage"
+	"github.com/fatih/camelcase"
+	"github.com/kubernetes-incubator/cri-o/libkpod"
+	"github.com/kubernetes-incubator/cri-o/libpod"
+	"github.com/kubernetes-incubator/cri-o/server"
+	"github.com/pkg/errors"
+	"github.com/urfave/cli"
+)
+
+var (
+	stores = make(map[storage.Store]struct{})
+)
+
+func getStore(c *libkpod.Config) (storage.Store, error) {
+	options := storage.DefaultStoreOptions
+	options.GraphRoot = c.Root
+	options.RunRoot = c.RunRoot
+	options.GraphDriverName = c.Storage
+	options.GraphDriverOptions = c.StorageOptions
+
+	store, err := storage.GetStore(options)
+	if err != nil {
+		return nil, err
+	}
+	is.Transport.SetStore(store)
+	stores[store] = struct{}{}
+	return store, nil
+}
+
+func getRuntime(c *cli.Context) (*libpod.Runtime, error) {
+
+	config, err := getConfig(c)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not get config")
+	}
+
+	options := storage.DefaultStoreOptions
+	options.GraphRoot = config.Root
+	options.RunRoot = config.RunRoot
+	options.GraphDriverName = config.Storage
+	options.GraphDriverOptions = config.StorageOptions
+
+	return libpod.NewRuntime(libpod.WithStorageConfig(options))
+}
+
+func shutdownStores() {
+	for store := range stores {
+		if _, err := store.Shutdown(false); err != nil {
+			break
+		}
+	}
+}
+
+func getConfig(c *cli.Context) (*libkpod.Config, error) {
+	config := libkpod.DefaultConfig()
+	var configFile string
+	if c.GlobalIsSet("config") {
+		configFile = c.GlobalString("config")
+	} else if _, err := os.Stat(server.CrioConfigPath); err == nil {
+		configFile = server.CrioConfigPath
+	}
+	// load and merge the configfile from the commandline or use
+	// the default crio config file
+	if configFile != "" {
+		err := config.UpdateFromFile(configFile)
+		if err != nil {
+			return config, err
+		}
+	}
+	if c.GlobalIsSet("root") {
+		config.Root = c.GlobalString("root")
+	}
+	if c.GlobalIsSet("runroot") {
+		config.RunRoot = c.GlobalString("runroot")
+	}
+
+	if c.GlobalIsSet("storage-driver") {
+		config.Storage = c.GlobalString("storage-driver")
+	}
+	if c.GlobalIsSet("storage-opt") {
+		opts := c.GlobalStringSlice("storage-opt")
+		if len(opts) > 0 {
+			config.StorageOptions = opts
+		}
+	}
+	if c.GlobalIsSet("runtime") {
+		config.Runtime = c.GlobalString("runtime")
+	}
+	return config, nil
+}
+
+func splitCamelCase(src string) string {
+	entries := camelcase.Split(src)
+	return strings.Join(entries, " ")
+}
+
+// validateFlags searches for StringFlags or StringSlice flags that never had
+// a value set.  This commonly occurs when the CLI mistakenly takes the next
+// option and uses it as a value.
+func validateFlags(c *cli.Context, flags []cli.Flag) error {
+	for _, flag := range flags {
+		switch reflect.TypeOf(flag).String() {
+		case "cli.StringSliceFlag":
+			{
+				f := flag.(cli.StringSliceFlag)
+				name := strings.Split(f.Name, ",")
+				val := c.StringSlice(name[0])
+				for _, v := range val {
+					if ok, _ := regexp.MatchString("^-.+", v); ok {
+						return errors.Errorf("option --%s requires a value", name[0])
+					}
+				}
+			}
+		case "cli.StringFlag":
+			{
+				f := flag.(cli.StringFlag)
+				name := strings.Split(f.Name, ",")
+				val := c.String(name[0])
+				if ok, _ := regexp.MatchString("^-.+", val); ok {
+					return errors.Errorf("option --%s requires a value", name[0])
+				}
+			}
+		}
+	}
+	return nil
+}