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path: root/cmd/podman/common.go
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-rw-r--r--cmd/podman/common.go67
1 files changed, 67 insertions, 0 deletions
diff --git a/cmd/podman/common.go b/cmd/podman/common.go
index 8ae1c9e0f..f9e746b28 100644
--- a/cmd/podman/common.go
+++ b/cmd/podman/common.go
@@ -89,6 +89,73 @@ func validateFlags(c *cli.Context, flags []cli.Flag) error {
return nil
}
+// checkAllAndLatest checks that --all and --latest are used correctly
+func checkAllAndLatest(c *cli.Context) error {
+ argLen := len(c.Args())
+ if (c.Bool("all") || c.Bool("latest")) && argLen > 0 {
+ return errors.Errorf("no arguments are needed with --all or --latest")
+ }
+ if c.Bool("all") && c.Bool("latest") {
+ return errors.Errorf("--all and --latest cannot be used together")
+ }
+ if argLen < 1 && !c.Bool("all") && !c.Bool("latest") {
+ return errors.Errorf("you must provide at least one pod name or id")
+ }
+ return nil
+}
+
+// getAllOrLatestContainers tries to return the correct list of containers
+// depending if --all, --latest or <container-id> is used.
+// It requires the Context (c) and the Runtime (runtime). As different
+// commands are using different container state for the --all option
+// the desired state has to be specified in filterState. If no filter
+// is desired a -1 can be used to get all containers. For a better
+// error message, if the filter fails, a corresponding verb can be
+// specified which will then appear in the error message.
+func getAllOrLatestContainers(c *cli.Context, runtime *libpod.Runtime, filterState libpod.ContainerStatus, verb string) ([]*libpod.Container, error) {
+ var containers []*libpod.Container
+ var lastError error
+ var err error
+ if c.Bool("all") {
+ if filterState != -1 {
+ var filterFuncs []libpod.ContainerFilter
+ filterFuncs = append(filterFuncs, func(c *libpod.Container) bool {
+ state, _ := c.State()
+ return state == filterState
+ })
+ containers, err = runtime.GetContainers(filterFuncs...)
+ } else {
+ containers, err = runtime.GetContainers()
+ }
+ if err != nil {
+ return nil, errors.Wrapf(err, "unable to get %s containers", verb)
+ }
+ } else if c.Bool("latest") {
+ lastCtr, err := runtime.GetLatestContainer()
+ if err != nil {
+ return nil, errors.Wrapf(err, "unable to get latest container")
+ }
+ containers = append(containers, lastCtr)
+ } else {
+ args := c.Args()
+ for _, i := range args {
+ container, err := runtime.LookupContainer(i)
+ if err != nil {
+ if lastError != nil {
+ fmt.Fprintln(os.Stderr, lastError)
+ }
+ lastError = errors.Wrapf(err, "unable to find container %s", i)
+ }
+ if container != nil {
+ // This is here to make sure this does not return [<nil>] but only nil
+ containers = append(containers, container)
+ }
+ }
+ }
+
+ return containers, lastError
+}
+
// getContext returns a non-nil, empty context
func getContext() context.Context {
return context.TODO()