Renamed --pull-images to --pull 🐷

README.md

@@ -30,11 +30,11 @@ You could use `lstags`, if you ...
 ## How do I use it myself?
 I run `lstags` inside a Cron Job on my Kubernetes worker nodes to poll my own Docker registry for a new [stable] images.
 ```
-lstags --pull-images -u myuser -p mypass registry.ivanilves.local/tools/sicario~/v1\\.[0-9]+$/ 
+lstags --pull -u myuser -p mypass registry.ivanilves.local/tools/sicario~/v1\\.[0-9]+$/
 ```
 ... and following cronjob runs on my CI server to ensure I always have latest Ubuntu 14.04 and 16.04 images to play with:
 ```
-lstags --pull-images ubuntu~/^1[46]\\.04$/"
+lstags --pull ubuntu~/^1[46]\\.04$/"
 ```
 My CI server is connected over crappy Internet link and pulling images in advance makes `docker run` much faster. :wink:
 

main.go

@@ -22,7 +22,7 @@ type options struct {
 	Password         string `short:"p" long:"password" default:"" description:"Docker registry password" env:"PASSWORD"`
 	DockerJSON       string `shord:"j" long:"docker-json" default:"~/.docker/config.json" env:"DOCKER_JSON"`
 	Concurrency      int    `short:"c" long:"concurrency" default:"32" description:"Concurrent request limit while querying registry" env:"CONCURRENCY"`
-	PullImages       bool   `short:"P" long:"pull-images" description:"Pull images matched by filter" env:"PULL_IMAGES"`
+	Pull             bool   `short:"P" long:"pull" description:"Pull images matched by filter" env:"PULL"`
 	InsecureRegistry bool   `short:"i" long:"insecure-registry" description:"Use insecure plain-HTTP registriy" env:"INSECURE_REGISTRY"`
 	TraceRequests    bool   `short:"T" long:"trace-requests" description:"Trace registry HTTP requests" env:"TRACE_REQUESTS"`
 	Version          bool   `short:"V" long:"version" description:"Show version and exit"`
@@ -212,13 +212,13 @@ func main() {
 
 	}
 
-	if o.PullImages {
+	if o.Pull {
 		for i, tg := range allTags {
 			if tg.NeedsPull() {
 				ref := lsRepos[i] + ":" + tg.GetName()
 
 				fmt.Printf("PULLING: %s\n", ref)
-				err := local.PullImage(ref)
+				err := local.Pull(ref)
 				if err != nil {
 					suicide(err)
 				}

tag/local/local.go

@@ -168,8 +168,8 @@ func FormatRepoName(repository, registry string) string {
 	return registry + "/" + repository
 }
 
-// PullImage pulls Docker image specified locally
-func PullImage(ref string) error {
+// Pull pulls Docker image specified locally
+func Pull(ref string) error {
 	cli, err := newClient()
 	if err != nil {
 		return err