func abortChange(c *Command, r *http.Request) Response {
chID := muxVars(r)["id"]
state := c.d.overlord.State()
state.Lock()
defer state.Unlock()
chg := state.Change(chID)
if chg == nil {
return NotFound("cannot find change with id %q", chID)
}
var reqData struct {
Action string `json:"action"`
}
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&reqData); err != nil {
return BadRequest("cannot decode data from request body: %v", err)
}
if reqData.Action != "abort" {
return BadRequest("change action %q is unsupported", reqData.Action)
}
if chg.Status().Ready() {
return BadRequest("cannot abort change %s with nothing pending", chID)
}
chg.Abort()
return SyncResponse(change2changeInfo(chg), nil)
}
func getChange(c *Command, r *http.Request) Response {
chID := muxVars(r)["id"]
state := c.d.overlord.State()
state.Lock()
defer state.Unlock()
chg := state.Change(chID)
if chg == nil {
return NotFound("cannot find change with id %q", chID)
}
return SyncResponse(change2changeInfo(chg), nil)
}