chore(third_party): Remove git-appraise r/74

Not actually in use here ...

1 files changed, 0 insertions, 613 deletions

diff --git a/third_party/go/git-appraise/repository/mock_repo.go b/third_party/go/git-appraise/repository/mock_repo.go
deleted file mode 100644
index 2d8debe48387..000000000000
--- a/third_party/go/git-appraise/repository/mock_repo.go
+++ /dev/null
@@ -1,613 +0,0 @@
-/*
-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 repository
-
-import (
-	"crypto/sha1"
-	"encoding/json"
-	"fmt"
-	"strings"
-)
-
-// Constants used for testing.
-// We initialize our mock repo with two branches (one of which holds a pending review),
-// and commit history that looks like this:
-//
-//  Master Branch:    A--B--D--E--F--J
-//                     \   /    \  \
-//                       C       \  \
-//                                \  \
-//  Review Branch:                 G--H--I
-//
-// Where commits "B" and "D" represent reviews that have been submitted, and "G"
-// is a pending review.
-const (
-	TestTargetRef          = "refs/heads/master"
-	TestReviewRef          = "refs/heads/ojarjur/mychange"
-	TestAlternateReviewRef = "refs/review/mychange"
-	TestRequestsRef        = "refs/notes/devtools/reviews"
-	TestCommentsRef        = "refs/notes/devtools/discuss"
-
-	TestCommitA = "A"
-	TestCommitB = "B"
-	TestCommitC = "C"
-	TestCommitD = "D"
-	TestCommitE = "E"
-	TestCommitF = "F"
-	TestCommitG = "G"
-	TestCommitH = "H"
-	TestCommitI = "I"
-	TestCommitJ = "J"
-
-	TestRequestB = `{"timestamp": "0000000001", "reviewRef": "refs/heads/ojarjur/mychange", "targetRef": "refs/heads/master", "requester": "ojarjur", "reviewers": ["ojarjur"], "description": "B"}`
-	TestRequestD = `{"timestamp": "0000000002", "reviewRef": "refs/heads/ojarjur/mychange", "targetRef": "refs/heads/master", "requester": "ojarjur", "reviewers": ["ojarjur"], "description": "D"}`
-	TestRequestG = `{"timestamp": "0000000004", "reviewRef": "refs/heads/ojarjur/mychange", "targetRef": "refs/heads/master", "requester": "ojarjur", "reviewers": ["ojarjur"], "description": "G"}
-
-{"timestamp": "0000000005", "reviewRef": "refs/heads/ojarjur/mychange", "targetRef": "refs/heads/master", "requester": "ojarjur", "reviewers": ["ojarjur"], "description": "Updated description of G"}
-
-{"timestamp": "0000000005", "reviewRef": "refs/heads/ojarjur/mychange", "targetRef": "refs/heads/master", "requester": "ojarjur", "reviewers": ["ojarjur"], "description": "Final description of G"}`
-
-	TestDiscussB = `{"timestamp": "0000000001", "author": "ojarjur", "location": {"commit": "B"}, "resolved": true}`
-	TestDiscussD = `{"timestamp": "0000000003", "author": "ojarjur", "location": {"commit": "E"}, "resolved": true}`
-)
-
-type mockCommit struct {
-	Message string   `json:"message,omitempty"`
-	Time    string   `json:"time,omitempty"`
-	Parents []string `json:"parents,omitempty"`
-}
-
-// mockRepoForTest defines an instance of Repo that can be used for testing.
-type mockRepoForTest struct {
-	Head    string
-	Refs    map[string]string            `json:"refs,omitempty"`
-	Commits map[string]mockCommit        `json:"commits,omitempty"`
-	Notes   map[string]map[string]string `json:"notes,omitempty"`
-}
-
-func (r *mockRepoForTest) createCommit(message string, time string, parents []string) (string, error) {
-	newCommit := mockCommit{
-		Message: message,
-		Time:    time,
-		Parents: parents,
-	}
-	newCommitJSON, err := json.Marshal(newCommit)
-	if err != nil {
-		return "", err
-	}
-	newCommitHash := fmt.Sprintf("%x", sha1.Sum([]byte(newCommitJSON)))
-	r.Commits[newCommitHash] = newCommit
-	return newCommitHash, nil
-}
-
-// NewMockRepoForTest returns a mocked-out instance of the Repo interface that has been pre-populated with test data.
-func NewMockRepoForTest() Repo {
-	commitA := mockCommit{
-		Message: "First commit",
-		Time:    "0",
-		Parents: nil,
-	}
-	commitB := mockCommit{
-		Message: "Second commit",
-		Time:    "1",
-		Parents: []string{TestCommitA},
-	}
-	commitC := mockCommit{
-		Message: "No, I'm the second commit",
-		Time:    "1",
-		Parents: []string{TestCommitA},
-	}
-	commitD := mockCommit{
-		Message: "Fourth commit",
-		Time:    "2",
-		Parents: []string{TestCommitB, TestCommitC},
-	}
-	commitE := mockCommit{
-		Message: "Fifth commit",
-		Time:    "3",
-		Parents: []string{TestCommitD},
-	}
-	commitF := mockCommit{
-		Message: "Sixth commit",
-		Time:    "4",
-		Parents: []string{TestCommitE},
-	}
-	commitG := mockCommit{
-		Message: "No, I'm the sixth commit",
-		Time:    "4",
-		Parents: []string{TestCommitE},
-	}
-	commitH := mockCommit{
-		Message: "Seventh commit",
-		Time:    "5",
-		Parents: []string{TestCommitG, TestCommitF},
-	}
-	commitI := mockCommit{
-		Message: "Eighth commit",
-		Time:    "6",
-		Parents: []string{TestCommitH},
-	}
-	commitJ := mockCommit{
-		Message: "No, I'm the eighth commit",
-		Time:    "6",
-		Parents: []string{TestCommitF},
-	}
-	return &mockRepoForTest{
-		Head: TestTargetRef,
-		Refs: map[string]string{
-			TestTargetRef:          TestCommitJ,
-			TestReviewRef:          TestCommitI,
-			TestAlternateReviewRef: TestCommitI,
-		},
-		Commits: map[string]mockCommit{
-			TestCommitA: commitA,
-			TestCommitB: commitB,
-			TestCommitC: commitC,
-			TestCommitD: commitD,
-			TestCommitE: commitE,
-			TestCommitF: commitF,
-			TestCommitG: commitG,
-			TestCommitH: commitH,
-			TestCommitI: commitI,
-			TestCommitJ: commitJ,
-		},
-		Notes: map[string]map[string]string{
-			TestRequestsRef: map[string]string{
-				TestCommitB: TestRequestB,
-				TestCommitD: TestRequestD,
-				TestCommitG: TestRequestG,
-			},
-			TestCommentsRef: map[string]string{
-				TestCommitB: TestDiscussB,
-				TestCommitD: TestDiscussD,
-			},
-		},
-	}
-}
-
-// GetPath returns the path to the repo.
-func (r *mockRepoForTest) GetPath() string { return "~/mockRepo/" }
-
-// GetRepoStateHash returns a hash which embodies the entire current state of a repository.
-func (r *mockRepoForTest) GetRepoStateHash() (string, error) {
-	repoJSON, err := json.Marshal(r)
-	if err != nil {
-		return "", err
-	}
-	return fmt.Sprintf("%x", sha1.Sum([]byte(repoJSON))), nil
-}
-
-// GetUserEmail returns the email address that the user has used to configure git.
-func (r *mockRepoForTest) GetUserEmail() (string, error) { return "user@example.com", nil }
-
-// GetUserSigningKey returns the key id the user has configured for
-// sigining git artifacts.
-func (r *mockRepoForTest) GetUserSigningKey() (string, error) {
-	return "gpgsig", nil
-}
-
-// GetCoreEditor returns the name of the editor that the user has used to configure git.
-func (r *mockRepoForTest) GetCoreEditor() (string, error) { return "vi", nil }
-
-// GetSubmitStrategy returns the way in which a review is submitted
-func (r *mockRepoForTest) GetSubmitStrategy() (string, error) { return "merge", nil }
-
-// HasUncommittedChanges returns true if there are local, uncommitted changes.
-func (r *mockRepoForTest) HasUncommittedChanges() (bool, error) { return false, nil }
-
-func (r *mockRepoForTest) resolveLocalRef(ref string) (string, error) {
-	if ref == "HEAD" {
-		ref = r.Head
-	}
-	if commit, ok := r.Refs[ref]; ok {
-		return commit, nil
-	}
-	if _, ok := r.Commits[ref]; ok {
-		return ref, nil
-	}
-	return "", fmt.Errorf("The ref %q does not exist", ref)
-}
-
-// VerifyCommit verifies that the supplied hash points to a known commit.
-func (r *mockRepoForTest) VerifyCommit(hash string) error {
-	if _, ok := r.Commits[hash]; !ok {
-		return fmt.Errorf("The given hash %q is not a known commit", hash)
-	}
-	return nil
-}
-
-// VerifyGitRef verifies that the supplied ref points to a known commit.
-func (r *mockRepoForTest) VerifyGitRef(ref string) error {
-	_, err := r.resolveLocalRef(ref)
-	return err
-}
-
-// GetHeadRef returns the ref that is the current HEAD.
-func (r *mockRepoForTest) GetHeadRef() (string, error) { return r.Head, nil }
-
-// GetCommitHash returns the hash of the commit pointed to by the given ref.
-func (r *mockRepoForTest) GetCommitHash(ref string) (string, error) {
-	err := r.VerifyGitRef(ref)
-	if err != nil {
-		return "", err
-	}
-	return r.resolveLocalRef(ref)
-}
-
-// ResolveRefCommit returns the commit pointed to by the given ref, which may be a remote ref.
-//
-// This differs from GetCommitHash which only works on exact matches, in that it will try to
-// intelligently handle the scenario of a ref not existing locally, but being known to exist
-// in a remote repo.
-//
-// This method should be used when a command may be performed by either the reviewer or the
-// reviewee, while GetCommitHash should be used when the encompassing command should only be
-// performed by the reviewee.
-func (r *mockRepoForTest) ResolveRefCommit(ref string) (string, error) {
-	if commit, err := r.resolveLocalRef(ref); err == nil {
-		return commit, err
-	}
-	return r.resolveLocalRef(strings.Replace(ref, "refs/heads/", "refs/remotes/origin/", 1))
-}
-
-func (r *mockRepoForTest) getCommit(ref string) (mockCommit, error) {
-	commit, err := r.resolveLocalRef(ref)
-	return r.Commits[commit], err
-}
-
-// GetCommitMessage returns the message stored in the commit pointed to by the given ref.
-func (r *mockRepoForTest) GetCommitMessage(ref string) (string, error) {
-	commit, err := r.getCommit(ref)
-	if err != nil {
-		return "", err
-	}
-	return commit.Message, nil
-}
-
-// GetCommitTime returns the commit time of the commit pointed to by the given ref.
-func (r *mockRepoForTest) GetCommitTime(ref string) (string, error) {
-	commit, err := r.getCommit(ref)
-	if err != nil {
-		return "", err
-	}
-	return commit.Time, nil
-}
-
-// GetLastParent returns the last parent of the given commit (as ordered by git).
-func (r *mockRepoForTest) GetLastParent(ref string) (string, error) {
-	commit, err := r.getCommit(ref)
-	if len(commit.Parents) > 0 {
-		return commit.Parents[len(commit.Parents)-1], err
-	}
-	return "", err
-}
-
-// GetCommitDetails returns the details of a commit's metadata.
-func (r *mockRepoForTest) GetCommitDetails(ref string) (*CommitDetails, error) {
-	commit, err := r.getCommit(ref)
-	if err != nil {
-		return nil, err
-	}
-	var details CommitDetails
-	details.Author = "Test Author"
-	details.AuthorEmail = "author@example.com"
-	details.Summary = commit.Message
-	details.Time = commit.Time
-	details.Parents = commit.Parents
-	return &details, nil
-}
-
-// ancestors returns the breadth-first traversal of a commit's ancestors
-func (r *mockRepoForTest) ancestors(commit string) ([]string, error) {
-	queue := []string{commit}
-	var ancestors []string
-	for queue != nil {
-		var nextQueue []string
-		for _, c := range queue {
-			commit, err := r.getCommit(c)
-			if err != nil {
-				return nil, err
-			}
-			parents := commit.Parents
-			nextQueue = append(nextQueue, parents...)
-			ancestors = append(ancestors, parents...)
-		}
-		queue = nextQueue
-	}
-	return ancestors, nil
-}
-
-// IsAncestor determines if the first argument points to a commit that is an ancestor of the second.
-func (r *mockRepoForTest) IsAncestor(ancestor, descendant string) (bool, error) {
-	var err error
-	ancestor, err = r.resolveLocalRef(ancestor)
-	if err != nil {
-		return false, err
-	}
-	descendant, err = r.resolveLocalRef(descendant)
-	if err != nil {
-		return false, err
-	}
-	if ancestor == descendant {
-		return true, nil
-	}
-	descendantCommit, err := r.getCommit(descendant)
-	if err != nil {
-		return false, err
-	}
-	for _, parent := range descendantCommit.Parents {
-		if t, e := r.IsAncestor(ancestor, parent); e == nil && t {
-			return true, nil
-		}
-	}
-	return false, nil
-}
-
-// MergeBase determines if the first commit that is an ancestor of the two arguments.
-func (r *mockRepoForTest) MergeBase(a, b string) (string, error) {
-	ancestors, err := r.ancestors(a)
-	if err != nil {
-		return "", err
-	}
-	for _, ancestor := range ancestors {
-		if t, e := r.IsAncestor(ancestor, b); e == nil && t {
-			return ancestor, nil
-		}
-	}
-	return "", nil
-}
-
-// Diff computes the diff between two given commits.
-func (r *mockRepoForTest) Diff(left, right string, diffArgs ...string) (string, error) {
-	return fmt.Sprintf("Diff between %q and %q", left, right), nil
-}
-
-// Show returns the contents of the given file at the given commit.
-func (r *mockRepoForTest) Show(commit, path string) (string, error) {
-	return fmt.Sprintf("%s:%s", commit, path), nil
-}
-
-// SwitchToRef changes the currently-checked-out ref.
-func (r *mockRepoForTest) SwitchToRef(ref string) error {
-	r.Head = ref
-	return nil
-}
-
-// ArchiveRef adds the current commit pointed to by the 'ref' argument
-// under the ref specified in the 'archive' argument.
-//
-// Both the 'ref' and 'archive' arguments are expected to be the fully
-// qualified names of git refs (e.g. 'refs/heads/my-change' or
-// 'refs/archive/devtools').
-//
-// If the ref pointed to by the 'archive' argument does not exist
-// yet, then it will be created.
-func (r *mockRepoForTest) ArchiveRef(ref, archive string) error {
-	commitToArchive, err := r.resolveLocalRef(ref)
-	if err != nil {
-		return err
-	}
-	var archiveParents []string
-	if archiveCommit, err := r.resolveLocalRef(archive); err == nil {
-		archiveParents = []string{archiveCommit, commitToArchive}
-	} else {
-		archiveParents = []string{commitToArchive}
-	}
-	archiveCommit, err := r.createCommit("Archiving", "Nowish", archiveParents)
-	if err != nil {
-		return err
-	}
-	r.Refs[archive] = archiveCommit
-	return nil
-}
-
-// MergeRef merges the given ref into the current one.
-//
-// The ref argument is the ref to merge, and fastForward indicates that the
-// current ref should only move forward, as opposed to creating a bubble merge.
-func (r *mockRepoForTest) MergeRef(ref string, fastForward bool, messages ...string) error {
-	newCommitHash, err := r.resolveLocalRef(ref)
-	if err != nil {
-		return err
-	}
-	if !fastForward {
-		origCommit, err := r.resolveLocalRef(r.Head)
-		if err != nil {
-			return err
-		}
-		newCommit, err := r.getCommit(ref)
-		if err != nil {
-			return err
-		}
-		message := strings.Join(messages, "\n\n")
-		time := newCommit.Time
-		parents := []string{origCommit, newCommitHash}
-		newCommitHash, err = r.createCommit(message, time, parents)
-		if err != nil {
-			return err
-		}
-	}
-	r.Refs[r.Head] = newCommitHash
-	return nil
-}
-
-// MergeAndSignRef merges the given ref into the current one and signs the
-// merge.
-//
-// The ref argument is the ref to merge, and fastForward indicates that the
-// current ref should only move forward, as opposed to creating a bubble merge.
-func (r *mockRepoForTest) MergeAndSignRef(ref string, fastForward bool,
-	messages ...string) error {
-	return nil
-}
-
-// RebaseRef rebases the current ref onto the given one.
-func (r *mockRepoForTest) RebaseRef(ref string) error {
-	parentHash := r.Refs[ref]
-	origCommit, err := r.getCommit(r.Head)
-	if err != nil {
-		return err
-	}
-	newCommitHash, err := r.createCommit(origCommit.Message, origCommit.Time, []string{parentHash})
-	if err != nil {
-		return err
-	}
-	if strings.HasPrefix(r.Head, "refs/heads/") {
-		r.Refs[r.Head] = newCommitHash
-	} else {
-		// The current head is not a branch, so updating
-		// it should leave us in a detached-head state.
-		r.Head = newCommitHash
-	}
-	return nil
-}
-
-// RebaseAndSignRef rebases the current ref onto the given one and signs the
-// result.
-func (r *mockRepoForTest) RebaseAndSignRef(ref string) error { return nil }
-
-// ListCommits returns the list of commits reachable from the given ref.
-//
-// The generated list is in chronological order (with the oldest commit first).
-//
-// If the specified ref does not exist, then this method returns an empty result.
-func (r *mockRepoForTest) ListCommits(ref string) []string { return nil }
-
-// ListCommitsBetween returns the list of commits between the two given revisions.
-//
-// The "from" parameter is the starting point (exclusive), and the "to"
-// parameter is the ending point (inclusive).
-//
-// The "from" commit does not need to be an ancestor of the "to" commit. If it
-// is not, then the merge base of the two is used as the starting point.
-// Admittedly, this makes calling these the "between" commits is a bit of a
-// misnomer, but it also makes the method easier to use when you want to
-// generate the list of changes in a feature branch, as it eliminates the need
-// to explicitly calculate the merge base. This also makes the semantics of the
-// method compatible with git's built-in "rev-list" command.
-//
-// The generated list is in chronological order (with the oldest commit first).
-func (r *mockRepoForTest) ListCommitsBetween(from, to string) ([]string, error) {
-	commits := []string{to}
-	potentialCommits, _ := r.ancestors(to)
-	for _, commit := range potentialCommits {
-		blocked, err := r.IsAncestor(commit, from)
-		if err != nil {
-			return nil, err
-		}
-		if !blocked {
-			commits = append(commits, commit)
-		}
-	}
-	return commits, nil
-}
-
-// GetNotes reads the notes from the given ref that annotate the given revision.
-func (r *mockRepoForTest) GetNotes(notesRef, revision string) []Note {
-	notesText := r.Notes[notesRef][revision]
-	var notes []Note
-	for _, line := range strings.Split(notesText, "\n") {
-		notes = append(notes, Note(line))
-	}
-	return notes
-}
-
-// GetAllNotes reads the contents of the notes under the given ref for every commit.
-//
-// The returned value is a mapping from commit hash to the list of notes for that commit.
-//
-// This is the batch version of the corresponding GetNotes(...) method.
-func (r *mockRepoForTest) GetAllNotes(notesRef string) (map[string][]Note, error) {
-	notesMap := make(map[string][]Note)
-	for _, commit := range r.ListNotedRevisions(notesRef) {
-		notesMap[commit] = r.GetNotes(notesRef, commit)
-	}
-	return notesMap, nil
-}
-
-// AppendNote appends a note to a revision under the given ref.
-func (r *mockRepoForTest) AppendNote(ref, revision string, note Note) error {
-	existingNotes := r.Notes[ref][revision]
-	newNotes := existingNotes + "\n" + string(note)
-	r.Notes[ref][revision] = newNotes
-	return nil
-}
-
-// ListNotedRevisions returns the collection of revisions that are annotated by notes in the given ref.
-func (r *mockRepoForTest) ListNotedRevisions(notesRef string) []string {
-	var revisions []string
-	for revision := range r.Notes[notesRef] {
-		if _, ok := r.Commits[revision]; ok {
-			revisions = append(revisions, revision)
-		}
-	}
-	return revisions
-}
-
-// PushNotes pushes git notes to a remote repo.
-func (r *mockRepoForTest) PushNotes(remote, notesRefPattern string) error { return nil }
-
-// PullNotes fetches the contents of the given notes ref from a remote repo,
-// and then merges them with the corresponding local notes using the
-// "cat_sort_uniq" strategy.
-func (r *mockRepoForTest) PullNotes(remote, notesRefPattern string) error { return nil }
-
-// PushNotesAndArchive pushes the given notes and archive refs to a remote repo.
-func (r *mockRepoForTest) PushNotesAndArchive(remote, notesRefPattern, archiveRefPattern string) error {
-	return nil
-}
-
-// PullNotesAndArchive fetches the contents of the notes and archives refs from
-// a remote repo, and merges them with the corresponding local refs.
-//
-// For notes refs, we assume that every note can be automatically merged using
-// the 'cat_sort_uniq' strategy (the git-appraise schemas fit that requirement),
-// so we automatically merge the remote notes into the local notes.
-//
-// For "archive" refs, they are expected to be used solely for maintaining
-// reachability of commits that are part of the history of any reviews,
-// so we do not maintain any consistency with their tree objects. Instead,
-// we merely ensure that their history graph includes every commit that we
-// intend to keep.
-func (r *mockRepoForTest) PullNotesAndArchive(remote, notesRefPattern, archiveRefPattern string) error {
-	return nil
-}
-
-// MergeNotes merges in the remote's state of the archives reference into
-// the local repository's.
-func (repo *mockRepoForTest) MergeNotes(remote, notesRefPattern string) error {
-	return nil
-}
-
-// MergeArchives merges in the remote's state of the archives reference into
-// the local repository's.
-func (repo *mockRepoForTest) MergeArchives(remote,
-	archiveRefPattern string) error {
-	return nil
-}
-
-// FetchAndReturnNewReviewHashes fetches the notes "branches" and then susses
-// out the IDs (the revision the review points to) of any new reviews, then
-// returns that list of IDs.
-//
-// This is accomplished by determining which files in the notes tree have
-// changed because the _names_ of these files correspond to the revisions they
-// point to.
-func (repo *mockRepoForTest) FetchAndReturnNewReviewHashes(remote, notesRefPattern,
-	archiveRefPattern string) ([]string, error) {
-	return nil, nil
-}