mirror of
https://github.com/ceph/ceph-csi.git
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173 lines
4.7 KiB
Go
173 lines
4.7 KiB
Go
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// Protocol Buffers for Go with Gadgets
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//
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// Copyright (c) 2013, The GoGo Authors. All rights reserved.
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// http://github.com/gogo/protobuf
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package main
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import (
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"bufio"
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"bytes"
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"github.com/gogo/protobuf/version"
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)
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type MixMatch struct {
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Old []string
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Filename string
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Args []string
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}
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func (this MixMatch) Gen(folder string, news []string) {
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if err := os.MkdirAll(folder, 0777); err != nil {
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panic(err)
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}
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data, err := ioutil.ReadFile(this.Filename)
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if err != nil {
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panic(err)
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}
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content := string(data)
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for i, old := range this.Old {
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if !strings.Contains(content, old) {
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panic(fmt.Errorf("could not find string {%s} to replace with {%s}", old, news[i]))
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}
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content = strings.Replace(content, old, news[i], 1)
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if strings.Contains(content, old) && old != news[i] {
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panic(fmt.Errorf("found another string {%s} after it was replaced with {%s}", old, news[i]))
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}
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}
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if err = ioutil.WriteFile(filepath.Join(folder, this.Filename), []byte(content), 0666); err != nil {
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panic(err)
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}
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args := append(this.Args, filepath.Join(folder, this.Filename))
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var regenerate = exec.Command("protoc", args...)
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out, err := regenerate.CombinedOutput()
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failed := false
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scanner := bufio.NewScanner(bytes.NewReader(out))
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for scanner.Scan() {
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text := scanner.Text()
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fmt.Println("protoc-gen-combo: ", text)
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if !strings.Contains(text, "WARNING") {
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failed = true
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}
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}
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if err != nil {
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fmt.Print("protoc-gen-combo: error: ", err)
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failed = true
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}
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if failed {
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os.Exit(1)
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}
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}
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func filter(ss []string, flag string) ([]string, string) {
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s := make([]string, 0, len(ss))
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var v string
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for i := range ss {
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if strings.Contains(ss[i], flag) {
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vs := strings.Split(ss[i], "=")
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v = vs[1]
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continue
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}
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s = append(s, ss[i])
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}
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return s, v
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}
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func filterArgs(ss []string) ([]string, []string) {
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var args []string
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var flags []string
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for i := range ss {
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if strings.Contains(ss[i], "=") {
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flags = append(flags, ss[i])
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continue
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}
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args = append(args, ss[i])
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}
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return flags, args
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}
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func main() {
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flag.String("version", "2.3.0", "minimum protoc version")
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flag.Bool("default", true, "generate the case where everything is false")
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flags, args := filterArgs(os.Args[1:])
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var min string
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flags, min = filter(flags, "-version")
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if len(min) == 0 {
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min = "2.3.1"
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}
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if !version.AtLeast(min) {
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fmt.Printf("protoc version not high enough to parse this proto file\n")
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return
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}
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if len(args) != 1 {
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fmt.Printf("protoc-gen-combo expects a filename\n")
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os.Exit(1)
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}
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filename := args[0]
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var def string
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flags, def = filter(flags, "-default")
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if _, err := exec.LookPath("protoc"); err != nil {
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panic("cannot find protoc in PATH")
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}
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m := MixMatch{
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Old: []string{
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"option (gogoproto.unmarshaler_all) = false;",
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"option (gogoproto.marshaler_all) = false;",
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},
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Filename: filename,
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Args: flags,
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}
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if def != "false" {
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m.Gen("./combos/neither/", []string{
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"option (gogoproto.unmarshaler_all) = false;",
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"option (gogoproto.marshaler_all) = false;",
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})
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}
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m.Gen("./combos/marshaler/", []string{
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"option (gogoproto.unmarshaler_all) = false;",
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"option (gogoproto.marshaler_all) = true;",
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})
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m.Gen("./combos/unmarshaler/", []string{
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"option (gogoproto.unmarshaler_all) = true;",
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"option (gogoproto.marshaler_all) = false;",
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})
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m.Gen("./combos/both/", []string{
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"option (gogoproto.unmarshaler_all) = true;",
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"option (gogoproto.marshaler_all) = true;",
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})
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}
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