func interactiveVerticalSplitDiff(wr *wrangler.Wrangler, w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
httpError(w, "cannot parse form: %s", err)
return
}
keyspace := r.FormValue("keyspace")
shard := r.FormValue("shard")
if keyspace == "" || shard == "" {
// display the list of possible shards to chose from
result := make(map[string]interface{})
shards, err := shardsWithTablesSources(wr)
if err != nil {
result["Error"] = err.Error()
} else {
result["Shards"] = shards
}
executeTemplate(w, verticalSplitDiffTemplate, result)
return
}
// start the diff job
wrk := worker.NewVerticalSplitDiffWorker(wr, *cell, keyspace, shard)
if _, err := setAndStartWorker(wrk); err != nil {
httpError(w, "cannot set worker: %s", err)
return
}
http.Redirect(w, r, servenv.StatusURLPath(), http.StatusTemporaryRedirect)
}
func commandVerticalSplitDiff(wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) worker.Worker {
subFlags.Parse(args)
if subFlags.NArg() != 1 {
log.Fatalf("command VerticalSplitDiff requires <keyspace/shard|zk shard path>")
}
keyspace, shard := shardParamToKeyspaceShard(subFlags.Arg(0))
return worker.NewVerticalSplitDiffWorker(wr, *cell, keyspace, shard)
}
