func handleRootPost(w http.ResponseWriter, req *http.Request, ps URLParams, cs chunks.ChunkStore) {
d.PanicIfTrue(req.Method != "POST", "Expected post method.")
params := req.URL.Query()
tokens := params["last"]
d.PanicIfTrue(len(tokens) != 1, `Expected "last" query param value`)
last := hash.Parse(tokens[0])
tokens = params["current"]
d.PanicIfTrue(len(tokens) != 1, `Expected "current" query param value`)
current := hash.Parse(tokens[0])
// Ensure that proposed new Root is present in cs
c := cs.Get(current)
d.PanicIfTrue(c.IsEmpty(), "Can't set Root to a non-present Chunk")
// Ensure that proposed new Root is a Map and, if it has anything in it, that it's <String, <RefCommit>>
v := types.DecodeValue(c, nil)
d.PanicIfTrue(v.Type().Kind() != types.MapKind, "Root of a Database must be a Map")
m := v.(types.Map)
if !m.Empty() && !isMapOfStringToRefOfCommit(m) {
panic(d.Wrap(fmt.Errorf("Root of a Database must be a Map<String, Ref<Commit>>, not %s", m.Type().Describe())))
}
if !cs.UpdateRoot(current, last) {
w.WriteHeader(http.StatusConflict)
return
}
}
func handleRootPost(w http.ResponseWriter, req *http.Request, ps URLParams, rt chunks.ChunkStore) {
d.PanicIfTrue(req.Method != "POST", "Expected post method.")
params := req.URL.Query()
tokens := params["last"]
d.PanicIfTrue(len(tokens) != 1, `Expected "last" query param value`)
last := hash.Parse(tokens[0])
tokens = params["current"]
d.PanicIfTrue(len(tokens) != 1, `Expected "current" query param value`)
current := hash.Parse(tokens[0])
if !rt.UpdateRoot(current, last) {
w.WriteHeader(http.StatusConflict)
return
}
}
func HandleRootPost(w http.ResponseWriter, req *http.Request, ps URLParams, rt chunks.ChunkStore) {
err := d.Try(func() {
d.Exp.Equal("POST", req.Method)
params := req.URL.Query()
tokens := params["last"]
d.Exp.Len(tokens, 1)
last := hash.Parse(tokens[0])
tokens = params["current"]
d.Exp.Len(tokens, 1)
current := hash.Parse(tokens[0])
if !rt.UpdateRoot(current, last) {
w.WriteHeader(http.StatusConflict)
return
}
})
if err != nil {
http.Error(w, fmt.Sprintf("Error: %v", err), http.StatusBadRequest)
return
}
}