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generate.go
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generate.go
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !windows
package main
import (
"context"
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"cloud.google.com/go/internal/gapicgen/generator"
"cloud.google.com/go/internal/gapicgen/git"
"golang.org/x/sync/errgroup"
)
// generate downloads sources and generates pull requests for go-genproto and
// google-cloud-go if needed.
func generate(ctx context.Context, githubClient *git.GithubClient, forceAll bool) error {
log.Println("creating temp dir")
tmpDir, err := ioutil.TempDir("", "update-genproto")
if err != nil {
return err
}
defer os.RemoveAll(tmpDir)
log.Printf("working out %s\n", tmpDir)
googleapisDir := filepath.Join(tmpDir, "googleapis")
googleapisDiscoDir := filepath.Join(tmpDir, "googleapis-discovery")
gocloudDir := filepath.Join(tmpDir, "gocloud")
genprotoDir := filepath.Join(tmpDir, "genproto")
protoDir := filepath.Join(tmpDir, "proto")
// Clone repositories.
grp, _ := errgroup.WithContext(ctx)
grp.Go(func() error {
return git.DeepClone("https://github.com/googleapis/googleapis", googleapisDir)
})
grp.Go(func() error {
return git.DeepClone("https://github.com/googleapis/googleapis-discovery", googleapisDiscoDir)
})
grp.Go(func() error {
return git.DeepClone("https://github.com/googleapis/go-genproto", genprotoDir)
})
grp.Go(func() error {
return git.DeepClone("https://github.com/googleapis/google-cloud-go", gocloudDir)
})
grp.Go(func() error {
return git.DeepClone("https://github.com/protocolbuffers/protobuf", protoDir)
})
if err := grp.Wait(); err != nil {
log.Println(err)
}
// Regen.
conf := &generator.Config{
GoogleapisDir: googleapisDir,
GoogleapisDiscoDir: googleapisDiscoDir,
GenprotoDir: genprotoDir,
GapicDir: gocloudDir,
ProtoDir: protoDir,
ForceAll: forceAll,
}
changes, err := generator.Generate(ctx, conf)
if err != nil {
return err
}
// Create PRs.
genprotoHasChanges, err := git.HasChanges(genprotoDir)
if err != nil {
return err
}
gocloudHasChanges, err := git.HasChanges(gocloudDir)
if err != nil {
return err
}
switch {
case genprotoHasChanges && gocloudHasChanges:
// Both have changes.
genprotoPRNum, err := githubClient.CreateGenprotoPR(ctx, genprotoDir, true, changes)
if err != nil {
return fmt.Errorf("error creating PR for genproto (may need to check logs for more errors): %v", err)
}
gocloudPRNum, err := githubClient.CreateGocloudPR(ctx, gocloudDir, genprotoPRNum, changes)
if err != nil {
return fmt.Errorf("error creating CL for veneers (may need to check logs for more errors): %v", err)
}
if err := githubClient.AmendGenprotoPR(ctx, genprotoPRNum, genprotoDir, gocloudPRNum, changes); err != nil {
return fmt.Errorf("error amending genproto PR: %v", err)
}
genprotoPRURL := fmt.Sprintf("https://github.com/googleapis/go-genproto/pull/%d", genprotoPRNum)
gocloudPRURL := fmt.Sprintf("https://github.com/googleapis/google-cloud-go/pull/%d", genprotoPRNum)
log.Println(genprotoPRURL)
log.Println(gocloudPRURL)
case genprotoHasChanges:
// Only genproto has changes.
genprotoPRNum, err := githubClient.CreateGenprotoPR(ctx, genprotoDir, false, changes)
if err != nil {
return fmt.Errorf("error creating PR for genproto (may need to check logs for more errors): %v", err)
}
genprotoPRURL := fmt.Sprintf("https://github.com/googleapis/go-genproto/pull/%d", genprotoPRNum)
log.Println(genprotoPRURL)
log.Println("gocloud had no changes")
case gocloudHasChanges:
// Only gocloud has changes.
gocloudPRNum, err := githubClient.CreateGocloudPR(ctx, gocloudDir, -1, changes)
if err != nil {
return fmt.Errorf("error creating CL for veneers (may need to check logs for more errors): %v", err)
}
gocloudPRURL := fmt.Sprintf("https://github.com/googleapis/google-cloud-go/pull/%d", gocloudPRNum)
log.Println("genproto had no changes")
log.Println(gocloudPRURL)
default:
// Neither have changes.
log.Println("Neither genproto nor gocloud had changes")
}
return nil
}