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119 lines
3.2 KiB
119 lines
3.2 KiB
package project
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import (
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"os"
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"path/filepath"
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"strings"
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"github.com/go-kratos/kratos/tool/protobuf/pkg/utils"
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"github.com/pkg/errors"
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"github.com/siddontang/go/ioutil2"
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)
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// if proto file is inside a project (that has a /api directory)
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// this present a project info
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// 必须假设proto文件的路径就是相对work-dir的路径，否则无法找到proto文件以及对应的project
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type ProjectInfo struct {
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// AbsolutePath of the project
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AbsolutePath string
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// ImportPath of project
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ImportPath string
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// dir name of project
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Name string
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// parent dir of project, maybe empty
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Department string
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// grandma dir of project , maybe empty
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Typ string
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HasInternalPkg bool
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// 从工作目录(working directory)到project目录的相对路径 比如a/b .. ../a
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// 作用是什么？
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// 假设目录结构是
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// -project
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// - api/api.proto
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// - internal/service
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// 我想在 internal/service下生成一个文件 service.go
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// work-dir 为 project/api
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// proto 生成命令为 protoc --xx_out=. api.proto
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// 那么在 protoc plugin 中的文件输出路径就得是 ../internal/service/ => {pathRefToProj}internal/service
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//
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PathRefToProj string
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}
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func NewProjInfo(file string, modDirName string, modImportPath string) (projInfo *ProjectInfo, err error) {
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projInfo = &ProjectInfo{}
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wd, err := os.Getwd()
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if err != nil {
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panic("cannot get working directory")
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}
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protoAbs := wd + "/" + file
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protoAbs, _ = filepath.Abs(protoAbs)
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if !ioutil2.FileExists(protoAbs) {
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return nil, errors.Errorf("Cannot find proto file in current dir %s, file: %s ", wd, file)
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}
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//appIndex := strings.Index(wd, modDirName)
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//if appIndex == -1 {
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// err = errors.New("not in " + modDirName)
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// return nil, err
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//}
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projPath := LookupProjPath(protoAbs)
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if projPath == "" {
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err = errors.New("not in project")
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return nil, err
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}
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rel, _ := filepath.Rel(wd, projPath)
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projInfo.PathRefToProj = rel
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projInfo.AbsolutePath = projPath
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if ioutil2.FileExists(projPath + "/internal") {
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projInfo.HasInternalPkg = true
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}
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i := strings.Index(projInfo.AbsolutePath, modDirName)
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if i == -1 {
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err = errors.Errorf("project is not inside module, project=%s, module=%s", projPath, modDirName)
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}
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relativePath := projInfo.AbsolutePath[i+len(modDirName):]
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projInfo.ImportPath = modImportPath + relativePath
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projInfo.Name = filepath.Base(projPath)
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if p := filepath.Dir(projPath); p != "/" {
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projInfo.Department = filepath.Base(p)
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if p = filepath.Dir(p); p != "/" {
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projInfo.Typ = filepath.Base(p)
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}
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}
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return projInfo, nil
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}
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// LookupProjPath get project path by proto absolute path
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// assume that proto is in the project's api directory
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func LookupProjPath(protoAbs string) (result string) {
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f := func(protoAbs string, dirs []string) string {
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lastIndex := len(protoAbs)
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curPath := protoAbs
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for lastIndex > 0 {
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found := true
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for _, d := range dirs {
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if !utils.IsDir(curPath + "/" + d) {
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found = false
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break
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}
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}
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if found {
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return curPath
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}
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lastIndex = strings.LastIndex(curPath, string(os.PathSeparator))
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curPath = protoAbs[:lastIndex]
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}
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result = ""
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return result
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}
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firstStep := f(protoAbs, []string{"cmd", "api"})
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if firstStep != "" {
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return firstStep
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}
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return f(protoAbs, []string{"api"})
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}
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