feat(third_party): Check in git-appraise

third_party/go/git-appraise/commands/abandon.go

@@ -0,0 +1,139 @@
+/*
+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/commands/input"
+	"github.com/google/git-appraise/repository"
+	"github.com/google/git-appraise/review"
+	"github.com/google/git-appraise/review/comment"
+	"github.com/google/git-appraise/review/gpg"
+	"github.com/google/git-appraise/review/request"
+)
+
+var abandonFlagSet = flag.NewFlagSet("abandon", flag.ExitOnError)
+
+var (
+	abandonMessageFile = abandonFlagSet.String("F", "", "Take the comment from the given file. Use - to read the message from the standard input")
+	abandonMessage     = abandonFlagSet.String("m", "", "Message to attach to the review")
+
+	abandonSign = abandonFlagSet.Bool("S", false,
+		"Sign the contents of the abandonment")
+)
+
+// abandonReview adds an NMW comment to the current code review.
+func abandonReview(repo repository.Repo, args []string) error {
+	abandonFlagSet.Parse(args)
+	args = abandonFlagSet.Args()
+
+	var r *review.Review
+	var err error
+	if len(args) > 1 {
+		return errors.New("Only abandon a single review is supported.")
+	}
+
+	if len(args) == 1 {
+		r, err = review.Get(repo, args[0])
+	} else {
+		r, err = review.GetCurrent(repo)
+	}
+
+	if err != nil {
+		return fmt.Errorf("Failed to load the review: %v\n", err)
+	}
+	if r == nil {
+		return errors.New("There is no matching review.")
+	}
+
+	if *abandonMessageFile != "" && *abandonMessage == "" {
+		*abandonMessage, err = input.FromFile(*abandonMessageFile)
+		if err != nil {
+			return err
+		}
+	}
+	if *abandonMessageFile == "" && *abandonMessage == "" {
+		*abandonMessage, err = input.LaunchEditor(repo, commentFilename)
+		if err != nil {
+			return err
+		}
+	}
+
+	abandonedCommit, err := r.GetHeadCommit()
+	if err != nil {
+		return err
+	}
+	location := comment.Location{
+		Commit: abandonedCommit,
+	}
+	resolved := false
+	userEmail, err := repo.GetUserEmail()
+	if err != nil {
+		return err
+	}
+	c := comment.New(userEmail, *abandonMessage)
+	c.Location = &location
+	c.Resolved = &resolved
+
+	var key string
+	if *abandonSign {
+		key, err := repo.GetUserSigningKey()
+		if err != nil {
+			return err
+		}
+		err = gpg.Sign(key, &c)
+		if err != nil {
+			return err
+		}
+	}
+
+	err = r.AddComment(c)
+	if err != nil {
+		return err
+	}
+
+	// Empty target ref indicates that request was abandoned
+	r.Request.TargetRef = ""
+	// (re)sign the request after clearing out `TargetRef'.
+	if *abandonSign {
+		err = gpg.Sign(key, &r.Request)
+		if err != nil {
+			return err
+		}
+	}
+
+	note, err := r.Request.Write()
+	if err != nil {
+		return err
+	}
+
+	return repo.AppendNote(request.Ref, r.Revision, note)
+}
+
+// abandonCmd defines the "abandon" subcommand.
+var abandonCmd = &Command{
+	Usage: func(arg0 string) {
+		fmt.Printf("Usage: %s abandon [<option>...] [<commit>]\n\nOptions:\n", arg0)
+		abandonFlagSet.PrintDefaults()
+	},
+	RunMethod: func(repo repository.Repo, args []string) error {
+		return abandonReview(repo, args)
+	},
+}