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/*
Copyright 2015 Google Inc. All rights reserved.
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.
*/
package commands
import (
"errors"
"flag"
"fmt"
"github.com/google/git-appraise/repository"
"github.com/google/git-appraise/review"
)
var (
pullFlagSet = flag.NewFlagSet("pull", flag.ExitOnError)
pullVerify = pullFlagSet.Bool("verify-signatures", false,
"verify the signatures of pulled reviews")
)
// pull updates the local git-notes used for reviews with those from a remote
// repo.
func pull(repo repository.Repo, args []string) error {
pullFlagSet.Parse(args)
pullArgs := pullFlagSet.Args()
if len(pullArgs) > 1 {
return errors.New(
"Only pulling from one remote at a time is supported.")
}
remote := "origin"
if len(pullArgs) == 1 {
remote = pullArgs[0]
}
// This is the easy case. We're not checking signatures so just go the
// normal route.
if !*pullVerify {
return repo.PullNotesAndArchive(remote, notesRefPattern,
archiveRefPattern)
}
// Otherwise, we collect the fetched reviewed revisions (their hashes), get
// their reviews, and then one by one, verify them. If we make it through
// the set, _then_ we merge the remote reference into the local branch.
revisions, err := repo.FetchAndReturnNewReviewHashes(remote,
notesRefPattern, archiveRefPattern)
if err != nil {
return err
}
for _, revision := range revisions {
rvw, err := review.GetSummaryViaRefs(repo,
"refs/notes/"+remote+"/devtools/reviews",
"refs/notes/"+remote+"/devtools/discuss", revision)
if err != nil {
return err
}
err = rvw.Verify()
if err != nil {
return err
}
fmt.Println("verified review:", revision)
}
err = repo.MergeNotes(remote, notesRefPattern)
if err != nil {
return err
}
return repo.MergeArchives(remote, archiveRefPattern)
}
var pullCmd = &Command{
Usage: func(arg0 string) {
fmt.Printf("Usage: %s pull [<option>] [<remote>]\n\nOptions:\n", arg0)
pullFlagSet.PrintDefaults()
},
RunMethod: func(repo repository.Repo, args []string) error {
return pull(repo, args)
},
}
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