func MustGetExchangeRate(from string, to string) float64 {
if !kmgStrings.IsAllAphphabet(from) {
panic(fmt.Errorf("[MustGetExchangeRate] fromName [%s] should like USD", from))
}
if !kmgStrings.IsAllAphphabet(to) {
panic(fmt.Errorf("[MustGetExchangeRate] toName [%s] should like USD", to))
}
if from == to {
panic(fmt.Errorf("[MustGetExchangeRate] fromName [%s] =toName [%s] "))
}
out := kmgHttp.MustUrlGetContent(kmgHttp.MustSetParameterMapToUrl("https://query.yahooapis.com/v1/public/yql", map[string]string{
"q": fmt.Sprintf(`select * from yahoo.finance.xchange where pair="%s%s"`, from, to),
"format": "json",
"env": "store://datatables.org/alltableswithkeys",
"callback": "",
}))
//out should look like {"query":{"count":1,"created":"2015-06-01T02:37:44Z","lang":"en","results":{"rate":{"id":"JPYCNY","Name":"JPY/CNY","Rate":"0.0501","Date":"6/1/2015","Time":"3:37am","Ask":"0.0501","Bid":"0.0501"}}}}
resp := yqlRateResponse{}
kmgJson.MustUnmarshal(out, &resp)
if resp.Query.Results.Rate.Rate == "N/A" {
panic(fmt.Errorf("[MustGetExchangeRate] Currency [%s][%s] not exist", from, to)) //有一种货币不存在.
}
rate, err := kmgStrconv.ParseFloat64(resp.Query.Results.Rate.Rate)
if err != nil {
panic(err)
}
return rate
}
func (sdk *AliyunSDK) Call(param *url.Values) (r *AliyunRespond, isErr bool) {
u := sdk.signature(param)
resp, err := http.Get(u)
handleErr(err)
body, err := ioutil.ReadAll(resp.Body)
handleErr(err)
aliyunResp := &AliyunRespond{}
kmgJson.MustUnmarshal(body, aliyunResp)
if aliyunResp.Code != "" || aliyunResp.Message != "" {
isErr = true
}
r = aliyunResp
return
}
func goRunInstall(goPath string, pathOrPkg string) {
//只能更新本GOPATH里面的pkg,不能更多多个GOPATH里面其他GOPATH的pkg缓存.
// go install 已知bug1 删除某个package里面的部分文件,然后由于引用到了旧的实现的代码,不会报错.删除pkg解决问题.
// go install 已知bug2 如果一个package先是main,然后build了一个东西,然后又改成了非main,再gorun会使用旧的缓存/bin/里面的缓存.
// TODO 已知bug3 当同一个项目的多个编译目标使用了同一个pkg,然后这个pkg变化了,缓存会出现A/B 问题,导致缓存完全无用.
ctx := &goRunInstallContext{
platform: kmgPlatform.GetCompiledPlatform().String(),
targetPkgMapCache: map[string]bool{},
pkgMapCache: map[string]*gorunCachePkgInfo{},
}
ctx.targetCachePath = filepath.Join(goPath, "tmp", "gorun", kmgCrypto.Md5HexFromString("target_"+pathOrPkg+"_"+ctx.platform))
ctx.pkgCachePath = filepath.Join(goPath, "tmp", "gorun", "allPkgCache")
ok := ctx.goRunInstallIsValidAndInvalidCache(goPath, pathOrPkg)
if ok {
//fmt.Println("use cache")
return
}
//fmt.Println("not use cache")
runCmdSliceWithGoPath(goPath, []string{"go", "install", pathOrPkg})
// 填充缓存
platform := ctx.platform
ctx.targetPkgMapCache = map[string]bool{}
outputJson := kmgCmd.CmdSlice([]string{"go", "list", "-json", pathOrPkg}).
MustSetEnv("GOPATH", goPath).MustCombinedOutput()
listObj := &struct {
Deps []string
Name string
}{}
kmgJson.MustUnmarshal(outputJson, &listObj)
if listObj.Name != "main" {
fmt.Printf("run non main package %s\n", pathOrPkg)
return
}
listObj.Deps = append(listObj.Deps, pathOrPkg)
for _, pkgName := range listObj.Deps {
srcpkgPath := filepath.Join(goPath, "src", pkgName)
fileList, err := kmgFile.ReadDirFileOneLevel(srcpkgPath)
if err != nil {
if !os.IsNotExist(err) {
panic(err)
}
// 没有找到pkg,可能是这个pkg在GOROOT出现过,此处暂时不管.
continue
}
ctx.targetPkgMapCache[pkgName] = true
pkgInfo := &gorunCachePkgInfo{
GoFileMap: map[string]uint64{},
}
for _, file := range fileList {
ext := filepath.Ext(file)
if ext == ".go" {
pkgInfo.GoFileMap[file] = mustCheckSumFile(filepath.Join(srcpkgPath, file))
}
}
pkgInfo.IsMain = pkgName == pathOrPkg
pkgInfo.Name = pkgName
pkgBinPath := pkgInfo.getPkgBinPath(goPath, platform)
pkgInfo.PkgMd5 = mustCheckSumFile(pkgBinPath)
ctx.pkgMapCache[pkgName] = pkgInfo
}
kmgGob.MustWriteFile(ctx.targetCachePath, ctx.targetPkgMapCache)
kmgGob.MustWriteFile(ctx.pkgCachePath, ctx.pkgMapCache)
}