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) }
//这个测试要用到. func getFileChangeCachePath(key string) string { // 此处key长度不可控,所以用md5. return filepath.Join(kmgConfig.DefaultEnv().TmpPath, "FileChangeCache", kmgCrypto.Md5HexFromString(key)) }