Go Reference

Package maintner mirrors, searches, syncs, and serves Git, Github, and Gerrit metadata.

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Package maintner mirrors, searches, syncs, and serves Git, Github, and Gerrit metadata.

Maintner is short for "Maintainer". This package is intended for use by many tools. The name of the daemon that serves the maintner data to other tools is "maintnerd".



package main

import (

func main() {
	cacheDir := filepath.Join(os.Getenv("HOME"), "var", "maintnerd")
	// contains the metadata for the Go project and related
	// Github repositories and issues.
	mutSrc := maintner.NewNetworkMutationSource("", cacheDir)
	corpus := new(maintner.Corpus)
	if err := corpus.Initialize(context.Background(), mutSrc); err != nil {
	err := corpus.GitHub().ForeachRepo(func(r *maintner.GitHubRepo) error {
		return nil
	if err != nil {
Example (FromDisk)


package main

import (

func main() {
	logger := maintner.NewDiskMutationLogger(filepath.Join(os.Getenv("HOME"), "var", "maintnerd"))
	corpus := new(maintner.Corpus)
	corpus.Initialize(context.Background(), logger)
	err := corpus.GitHub().ForeachRepo(func(r *maintner.GitHubRepo) error {
		return nil
	if err != nil {




This section is empty.


View Source
var ErrSplit = errors.New("maintner: leader server's history split, process out of sync")

ErrSplit is returned when the the client notices the leader's mutation log has changed. This can happen if the leader restarts with uncommitted transactions. (The leader only commits mutations periodically.)


func TailNetworkMutationSource

func TailNetworkMutationSource(ctx context.Context, server string, fn func(MutationStreamEvent) error) error

TailNetworkMutationSource calls fn for all new mutations added to the log on server. Events with the End field set to true are not sent, so all events will have exactly one of Mutation or Err fields set to a non-zero value. It ignores prior events. If the server is restarted and its history diverges, TailNetworkMutationSource may return duplicate events. This therefore does not return a MutationSource, so it can't be accidentally misused for important things. TailNetworkMutationSource returns if fn returns an error, or if ctx expires.


type Corpus

type Corpus struct {

	// contains filtered or unexported fields


Corpus holds all of a project's metadata.

Many public accessor methods are missing. File bugs at

func (*Corpus) Check

func (c *Corpus) Check() error

Check verifies the internal structure of the Corpus data structures. It is intended for tests and debugging.

func (*Corpus) EnableLeaderMode

func (c *Corpus) EnableLeaderMode(logger MutationLogger, scratchDir string)

EnableLeaderMode prepares c to be the leader. This should only be called by the maintnerd process.

The provided scratchDir will store git checkouts.

func (*Corpus) Gerrit

func (c *Corpus) Gerrit() *Gerrit

Gerrit returns the corpus's Gerrit data.

func (*Corpus) GitCommit

func (c *Corpus) GitCommit(hash string) *GitCommit

GitCommit returns the provided git commit, or nil if it's unknown.

func (*Corpus) GitHub

func (c *Corpus) GitHub() *GitHub

GitHub returns the corpus's github data.

func (*Corpus) Initialize

func (c *Corpus) Initialize(ctx context.Context, src MutationSource) error

Initialize populates the Corpus using the data from the MutationSource. It returns once it's up-to-date. To incrementally update it later, use the Update method.

func (*Corpus) RLock

func (c *Corpus) RLock()

RLock grabs the corpus's read lock. Grabbing the read lock prevents any concurrent writes from mutating the corpus. This is only necessary if the application is querying the corpus and calling its Update method concurrently.

func (*Corpus) RUnlock

func (c *Corpus) RUnlock()

RUnlock unlocks the corpus's read lock.

func (*Corpus) SetDebug

func (c *Corpus) SetDebug()

func (*Corpus) SetGitHubLimiter

func (c *Corpus) SetGitHubLimiter(l *rate.Limiter)

GitHubLimiter sets a limiter that controls the rate of requests made to GitHub APIs. If nil, requests are not limited. Only valid in leader mode. The limiter must only be set before Sync or SyncLoop is called.

func (*Corpus) SetVerbose

func (c *Corpus) SetVerbose(v bool)

SetVerbose enables or disables verbose logging.

func (*Corpus) StartPubSubHelperSubscribe

func (c *Corpus) StartPubSubHelperSubscribe(urlBase string)

StartPubSubHelperSubscribe starts subscribing to a server, such as

func (*Corpus) Sync

func (c *Corpus) Sync(ctx context.Context) error

Sync updates the corpus from its tracked sources.

func (*Corpus) SyncLoop

func (c *Corpus) SyncLoop(ctx context.Context) error

SyncLoop runs forever (until an error or context expiration) and updates the corpus as the tracked sources change.

func (*Corpus) TrackGerrit

func (c *Corpus) TrackGerrit(gerritProj string)

TrackGerrit registers the Gerrit project with the given project as a project to watch and append to the mutation log. Only valid in leader mode. The provided string should be of the form "hostname/project", without a scheme or trailing slash.

func (*Corpus) TrackGitHub

func (c *Corpus) TrackGitHub(owner, repo, token string)

TrackGitHub registers the named GitHub repo as a repo to watch and append to the mutation log. Only valid in leader mode. The token is the auth token to use to make API calls.

func (*Corpus) TrackGoGitRepo

func (c *Corpus) TrackGoGitRepo(goRepo, dir string)

TrackGoGitRepo registers a git directory to have its metadata slurped into the corpus. The goRepo is a name like "go" or "net". The dir is a path on disk.

func (*Corpus) Update

func (c *Corpus) Update(ctx context.Context) error

Update incrementally updates the corpus from its current state to the latest state from the MutationSource passed earlier to Initialize. It does not return until there's either a new change or the context expires. If Update returns ErrSplit, the corpus can longer be updated.

Update must not be called concurrently with any other Update calls. If reading the corpus concurrently while the corpus is updating, you must hold the read lock using Corpus.RLock.

func (*Corpus) UpdateWithLocker

func (c *Corpus) UpdateWithLocker(ctx context.Context, lk sync.Locker) error

UpdateWithLocker behaves just like Update, but holds lk when processing mutation events.

type DiskMutationLogger

type DiskMutationLogger struct {

	// contains filtered or unexported fields


DiskMutationLogger logs mutations to disk.



package main

import (

func main() {
	logger := maintner.NewDiskMutationLogger(filepath.Join(os.Getenv("HOME"), "var", "maintnerd"))
	corpus := new(maintner.Corpus)
	corpus.Initialize(context.Background(), logger)
	err := corpus.GitHub().ForeachRepo(func(r *maintner.GitHubRepo) error {
		return nil
	if err != nil {

func NewDiskMutationLogger

func NewDiskMutationLogger(directory string) *DiskMutationLogger

NewDiskMutationLogger creates a new DiskMutationLogger, which will create mutations in the given directory.

func (*DiskMutationLogger) ForeachFile

func (d *DiskMutationLogger) ForeachFile(fn func(fullPath string, fi os.FileInfo) error) error

func (*DiskMutationLogger) GetMutations

func (d *DiskMutationLogger) GetMutations(ctx context.Context) <-chan MutationStreamEvent

func (*DiskMutationLogger) Log

Log will write m to disk. If a mutation file does not exist for the current day, it will be created.

type Gerrit

type Gerrit struct {

	// contains filtered or unexported fields


Gerrit holds information about a number of Gerrit projects.

func (*Gerrit) ForeachProjectUnsorted

func (g *Gerrit) ForeachProjectUnsorted(fn func(*GerritProject) error) error

ForeachProjectUnsorted calls fn for each known Gerrit project. Iteration ends if fn returns a non-nil value.

func (*Gerrit) Project

func (g *Gerrit) Project(server, project string) *GerritProject

Project returns the specified Gerrit project if it's known, otherwise it returns nil. Server is the Gerrit server's hostname, such as "".

type GerritCL

type GerritCL struct {
	// Project is the project this CL is part of.
	Project *GerritProject

	// Number is the CL number on the Gerrit server (e.g. 1, 2, 3). Gerrit CL
	// numbers are sparse (CL N does not guarantee that CL N-1 exists) and
	// Gerrit issues CL's out of order - it may issue CL N, then CL (N - 18),
	// then CL (N - 40).
	Number int32

	// Created is the CL creation time.
	Created time.Time

	// Version is the number of versions of the patchset for this
	// CL seen so far. It starts at 1.
	Version int32

	// Commit is the git commit of the latest version of this CL.
	// Previous versions are available via CommitAtVersion.
	// Commit is always non-nil.
	Commit *GitCommit

	// Meta is the head of the most recent Gerrit "meta" commit
	// for this CL. This is guaranteed to be a linear history
	// back to a CL-specific root commit for this meta branch.
	// Meta will always be non-nil.
	Meta *GerritMeta

	// Metas contains the history of Meta commits, from the oldest (root)
	// to the most recent. The last item in the slice is the same
	// value as the GerritCL.Meta field.
	// The Metas slice will always contain at least 1 element.
	Metas []*GerritMeta

	// Status will be "merged", "abandoned", "new", or "draft".
	Status string

	// Private indicates whether this is a private CL.
	// Empirically, it seems that one meta commit of private CLs is
	// sometimes visible to everybody, even when the rest of the details
	// and later meta commits are not. In general, if you see this
	// being set to true, treat this CL as if it doesn't exist.
	Private bool

	// GitHubIssueRefs are parsed references to GitHub issues.
	// Multiple references to the same issue are deduplicated.
	GitHubIssueRefs []GitHubIssueRef

	// Messages contains all of the messages for this CL, in sorted order.
	Messages []*GerritMessage // contains filtered or unexported fields


A GerritCL represents a single change in Gerrit.

func (*GerritCL) Branch

func (cl *GerritCL) Branch() string

Branch returns the CL's branch, with any "refs/heads/" prefix removed.

func (*GerritCL) ChangeID

func (cl *GerritCL) ChangeID() string

ChangeID returns the Gerrit "Change-Id: Ixxxx" line's Ixxxx value from the cl.Msg, if any.

func (*GerritCL) CommitAtVersion

func (cl *GerritCL) CommitAtVersion(version int32) *GitCommit

CommitAtVersion returns the git commit of the specifid version of this CL. It returns nil if version is not in the range [1, cl.Version].

func (*GerritCL) Footer

func (cl *GerritCL) Footer(key string) string

Footer returns the value of a line of the form <key>: value from the CL’s commit message. The key is case-sensitive and must end in a colon. An empty string is returned if there is no value for key.

func (*GerritCL) Owner

func (cl *GerritCL) Owner() *GitPerson

Owner returns the author of the first commit to the CL. It returns nil on error.

func (*GerritCL) OwnerID

func (cl *GerritCL) OwnerID() int

OwnerID returns the ID of the CL’s owner. It will return -1 on error.

func (*GerritCL) References

func (cl *GerritCL) References(ref GitHubIssueRef) bool

References reports whether cl includes a commit message reference to the provided Github issue ref.

func (*GerritCL) Subject

func (cl *GerritCL) Subject() string

Subject returns the subject of the latest commit message. The subject is separated from the body by a blank line.

func (*GerritCL) WorkInProgress

func (cl *GerritCL) WorkInProgress() bool

WorkInProgress reports whether the CL has its Work-in-progress bit set, per

type GerritHashtags

type GerritHashtags string

GerritHashtags represents a set of "hashtags" on a Gerrit CL.

The representation is a comma-separated string, to match Gerrit's internal representation in the meta commits. To support both forms of Gerrit's internal representation, whitespace is optional around the commas.

func (GerritHashtags) Contains

func (s GerritHashtags) Contains(t string) bool

Contains reports whether the hashtag t is in the set of tags s.

func (GerritHashtags) Foreach

func (s GerritHashtags) Foreach(fn func(string))

Foreach calls fn for each tag in the set s.

func (GerritHashtags) Len

func (s GerritHashtags) Len() int

Len returns the number of tags in the set s.

func (GerritHashtags) Match

func (s GerritHashtags) Match(fn func(string) bool) bool

Match reports whether fn returns true for any tag in the set s. If fn returns true, iteration stops and Match returns true.

type GerritMessage

type GerritMessage struct {
	// Meta is the commit containing the message.
	Meta *GitCommit

	// Version is the patch set version this message was sent on.
	Version int32

	// Message is the raw message contents from Gerrit (a subset
	// of the raw git commit message), starting with "Patch Set
	// nnnn".
	Message string

	// Date is when this message was stored (the commit time of
	// the git commit).
	Date time.Time

	// Author returns the author of the commit. This takes the form "Gerrit User
	// 13437 <13437@62eb7196-b449-3ce5-99f1-c037f21e1705>", where the number
	// before the '@' sign is your Gerrit user ID, and the UUID after the '@' sign
	// seems to be the same for all commits for the same Gerrit server, across
	// projects.
	// TODO: Merge the *GitPerson object here and for a person's Git commits
	// (which use their real email) via the user ID, so they point to the same
	// object.
	Author *GitPerson

GerritMessage is a Gerrit reply that is attached to the CL as a whole, and not to a file or line of a patch set.

Maintner does very little parsing or formatting of a Message body. Messages are stored the same way they are stored in the API.

type GerritMeta

type GerritMeta struct {
	// Commit points up to the git commit for this Gerrit NoteDB meta commit.
	Commit *GitCommit
	// CL is the Gerrit CL this metadata is for.
	CL *GerritCL

	// contains filtered or unexported fields


GerritMeta represents a Git commit in the Gerrit NoteDb meta format.

func (*GerritMeta) ActionTag

func (m *GerritMeta) ActionTag() string

ActionTag returns the Gerrit "Tag" value from the meta commit. These are of the form "autogenerated:gerrit:setHashtag".

func (*GerritMeta) Footer

func (m *GerritMeta) Footer() string

Footer returns the "key: value" lines at the base of the commit.

func (*GerritMeta) HashtagEdits

func (m *GerritMeta) HashtagEdits() (added, removed GerritHashtags, ok bool)

HashtagEdits returns the hashtags added and removed by this meta commit, and whether this meta commit actually modified hashtags.

func (*GerritMeta) Hashtags

func (m *GerritMeta) Hashtags() GerritHashtags

Hashtags returns the set of hashtags on m's CL as of the time of m.

func (*GerritMeta) HashtagsAdded

func (m *GerritMeta) HashtagsAdded() GerritHashtags

HashtagsAdded returns the hashtags added by this meta commit, if any.

func (*GerritMeta) HashtagsRemoved

func (m *GerritMeta) HashtagsRemoved() GerritHashtags

HashtagsRemoved returns the hashtags removed by this meta commit, if any.

func (*GerritMeta) LabelVotes

func (m *GerritMeta) LabelVotes() map[string]map[string]int8

LabelVotes returns a map from label name to voter email to their vote.

This is relatively expensive to call compared to other methods in maintner. It is not currently cached.

type GerritProject

type GerritProject struct {

	// contains filtered or unexported fields


GerritProject represents a single Gerrit project.

func (*GerritProject) CL

func (gp *GerritProject) CL(number int32) *GerritCL

CL returns the GerritCL with the given number, or nil if it is not present.

CL numbers are shared across all projects on a Gerrit server, so you can get nil unless you have the GerritProject containing that CL.

func (*GerritProject) ForeachCLUnsorted

func (gp *GerritProject) ForeachCLUnsorted(fn func(*GerritCL) error) error

ForeachCLUnsorted calls fn for each CL in the repo, in any order.

If fn returns an error, iteration ends and ForeachCLUnsorted returns with that error.

func (*GerritProject) ForeachNonChangeRef

func (gp *GerritProject) ForeachNonChangeRef(fn func(ref string, hash GitHash) error) error

ForeachNonChangeRef calls fn for each git ref on the server that is not a change (code review) ref. In general, these correspond to submitted changes. fn is called serially with sorted ref names. Iteration stops with the first non-nil error returned by fn.

func (*GerritProject) ForeachOpenCL

func (gp *GerritProject) ForeachOpenCL(fn func(*GerritCL) error) error

ForeachOpenCL calls fn for each open CL in the repo.

If fn returns an error, iteration ends and ForeachOpenCL returns with that error.

The fn function is called serially, with increasingly numbered CLs.

func (*GerritProject) GitCommit

func (gp *GerritProject) GitCommit(hash string) *GitCommit

GitCommit returns the provided git commit, or nil if it's unknown.

func (*GerritProject) NumLabelChanges

func (gp *GerritProject) NumLabelChanges() int

NumLabelChanges is an inaccurate count the number of times vote labels have changed in this project. This number is monotonically increasing. This is not guaranteed to be accurate; it definitely overcounts, but it at least increments when changes are made. It will not undercount.

func (*GerritProject) Project

func (gp *GerritProject) Project() string

Project returns the Gerrit project on the server, such as "go" or "crypto".

func (*GerritProject) Ref

func (gp *GerritProject) Ref(ref string) GitHash

Ref returns a non-change ref, such as "HEAD", "refs/heads/master", or "refs/tags/v0.8.0", Change refs of the form "refs/changes/*" are not supported. The returned hash is the zero value (an empty string) if the ref does not exist.

func (*GerritProject) Server

func (gp *GerritProject) Server() string

Server returns the Gerrit server, such as "".

func (*GerritProject) ServerSlashProject

func (gp *GerritProject) ServerSlashProject() string

ServerSlashProject returns the server and project together, such as "".

type GitCommit

type GitCommit struct {
	Hash       GitHash
	Tree       GitHash
	Parents    []*GitCommit
	Author     *GitPerson
	AuthorTime time.Time
	Committer  *GitPerson
	Reviewer   *GitPerson
	CommitTime time.Time
	Msg        string // Commit message subject and body
	Files      []*maintpb.GitDiffTreeFile
	GerritMeta *GerritMeta // non-nil if it's a Gerrit NoteDB meta commit

GitCommit represents a single commit in a git repository.

func (*GitCommit) HasAncestor

func (gc *GitCommit) HasAncestor(ancestor *GitCommit) bool

HasAncestor reports whether gc contains the provided ancestor commit in gc's history.

func (*GitCommit) SameDiffStat

func (gc *GitCommit) SameDiffStat(b *GitCommit) bool

SameDiffStat reports whether gc has the same diff stat numbers as b. If either is unknown, false is returned.

func (*GitCommit) String

func (gc *GitCommit) String() string

func (*GitCommit) Summary

func (gc *GitCommit) Summary() string

Summary returns the first line of the commit message.

type GitHash

type GitHash string

GitHash is a git commit in binary form (NOT hex form). They are currently always 20 bytes long. (for SHA-1 refs) That may change in the future.

func (GitHash) String

func (h GitHash) String() string

type GitHub

type GitHub struct {

	// contains filtered or unexported fields


GitHub holds data about a GitHub repo.

func (*GitHub) ForeachRepo

func (g *GitHub) ForeachRepo(fn func(*GitHubRepo) error) error

ForeachRepo calls fn serially for each GitHubRepo, stopping if fn returns an error. The function is called with lexically increasing repo IDs.

func (*GitHub) Repo

func (g *GitHub) Repo(owner, repo string) *GitHubRepo

Repo returns the repo if it's known. Otherwise it returns nil.

type GitHubComment

type GitHubComment struct {
	ID      int64
	User    *GitHubUser
	Created time.Time
	Updated time.Time
	Body    string

type GitHubDismissedReviewEvent

type GitHubDismissedReviewEvent struct {
	ReviewID         int64
	State            string // commented, approved, changes_requested
	DismissalMessage string

GitHubDismissedReview is the contents of a dismissed review event. For more details, see

type GitHubIssue

type GitHubIssue struct {
	ID          int64
	Number      int32
	NotExist    bool // if true, rest of fields should be ignored.
	Closed      bool
	Locked      bool
	PullRequest bool // if true, this issue is a Pull Request. All PRs are issues, but not all issues are PRs.
	User        *GitHubUser
	Assignees   []*GitHubUser
	Created     time.Time
	Updated     time.Time
	ClosedAt    time.Time
	ClosedBy    *GitHubUser // TODO(dmitshur): Implement (see
	Title       string
	Body        string
	Milestone   *GitHubMilestone       // nil for unknown, noMilestone for none
	Labels      map[int64]*GitHubLabel // label ID => label

	// contains filtered or unexported fields


GitHubIssue represents a GitHub issue. This is maintner's in-memory representation. It differs slightly from the API's *github.Issue type, notably in the lack of pointers for all fields. See

func (*GitHubIssue) ForeachComment

func (gi *GitHubIssue) ForeachComment(fn func(*GitHubComment) error) error

ForeachComment calls fn for each event on the issue.

If fn returns an error, iteration ends and ForeachComment returns with that error.

The fn function is called serially, in order of the comment's time.

func (*GitHubIssue) ForeachEvent

func (gi *GitHubIssue) ForeachEvent(fn func(*GitHubIssueEvent) error) error

ForeachEvent calls fn for each event on the issue.

If fn returns an error, iteration ends and ForeachEvent returns with that error.

The fn function is called serially, in order of the event's time.

func (*GitHubIssue) ForeachReview

func (pr *GitHubIssue) ForeachReview(fn func(*GitHubReview) error) error

ForeachReview calls fn for each review event on the issue

If the issue is not a PullRequest, then it returns early with no error.

If fn returns an error, iteration ends and ForeachReview returns with that error.

The fn function is called serially, in chronological order.

func (*GitHubIssue) HasEvent

func (gi *GitHubIssue) HasEvent(eventType string) bool

HasEvent reports whether there's any GitHubIssueEvent in this issue's history of the given type.

func (*GitHubIssue) HasLabel

func (gi *GitHubIssue) HasLabel(label string) bool

HasLabel reports whether the issue is labeled with the given label.

func (*GitHubIssue) HasLabelID

func (gi *GitHubIssue) HasLabelID(id int64) bool

HasLabelID returns whether the issue has a label with the given ID.

func (*GitHubIssue) LastModified

func (gi *GitHubIssue) LastModified() time.Time

LastModified reports the most recent time that any known metadata was updated. In contrast to the Updated field, LastModified includes comments and events.

TODO(bradfitz): this seems to not be working, at least events aren't updating it. Investigate.

type GitHubIssueEvent

type GitHubIssueEvent struct {

	// ID is the ID of the event.
	ID int64

	// Type is one of:
	// * labeled, unlabeled
	// * milestoned, demilestoned
	// * assigned, unassigned
	// * locked, unlocked
	// * closed
	// * referenced
	// * renamed
	// * reopened
	// * comment_deleted
	// * head_ref_restored
	// * base_ref_changed
	// * subscribed
	// * mentioned
	// * review_requested, review_request_removed, review_dismissed
	Type string

	// OtherJSON optionally contains a JSON object of GitHub's API
	// response for any fields maintner was unable to extract at
	// the time. It is empty if maintner supported all the fields
	// when the mutation was created.
	OtherJSON string

	Created time.Time
	Actor   *GitHubUser

	Label               string      // for type: "unlabeled", "labeled"
	Assignee            *GitHubUser // for type "assigned", "unassigned"
	Assigner            *GitHubUser // for type "assigned", "unassigned"
	Milestone           string      // for type: "milestoned", "demilestoned"
	From, To            string      // for type: "renamed"
	CommitID, CommitURL string      // for type: "closed", "referenced" ... ?

	Reviewer        *GitHubUser
	TeamReviewer    *GitHubTeam
	ReviewRequester *GitHubUser
	DismissedReview *GitHubDismissedReviewEvent

func (*GitHubIssueEvent) Proto

type GitHubIssueRef

type GitHubIssueRef struct {
	Repo   *GitHubRepo // must be non-nil
	Number int32       // GitHubIssue.Number

GitHubIssueRef is a reference to an issue (or pull request) number in a repo. These are parsed from text making references such as "golang/go#1234" or just "#1234" (with an implicit Repo).

func (GitHubIssueRef) String

func (r GitHubIssueRef) String() string

type GitHubLabel

type GitHubLabel struct {
	ID   int64
	Name string

func (*GitHubLabel) GenMutationDiff

func (a *GitHubLabel) GenMutationDiff(b *github.Label) *maintpb.GithubLabel

GenMutationDiff generates a diff from in-memory state 'a' (which may be nil) to the current (non-nil) state b from GitHub. It returns nil if there's no difference.

type GitHubMilestone

type GitHubMilestone struct {
	ID     int64
	Title  string
	Number int32
	Closed bool

func (*GitHubMilestone) GenMutationDiff

func (a *GitHubMilestone) GenMutationDiff(b *github.Milestone) *maintpb.GithubMilestone

GenMutationDiff generates a diff from in-memory state 'a' (which may be nil) to the current (non-nil) state b from GitHub. It returns nil if there's no difference.

func (*GitHubMilestone) IsNone

func (ms *GitHubMilestone) IsNone() bool

IsNone reports whether ms represents the sentinel "no milestone" milestone.

func (*GitHubMilestone) IsUnknown

func (ms *GitHubMilestone) IsUnknown() bool

IsUnknown reports whether ms is nil, which represents the unknown state. Milestones should never be in this state, though.

type GitHubRepo

type GitHubRepo struct {

	// contains filtered or unexported fields


func (*GitHubRepo) ForeachIssue

func (gr *GitHubRepo) ForeachIssue(fn func(*GitHubIssue) error) error

ForeachIssue calls fn for each issue in the repo.

If fn returns an error, iteration ends and ForeachIssue returns with that error.

The fn function is called serially, with increasingly numbered issues.

func (*GitHubRepo) ForeachLabel

func (gr *GitHubRepo) ForeachLabel(fn func(*GitHubLabel) error) error

ForeachLabel calls fn for each label in the repo, in unsorted order.

Iteration ends if fn returns an error, with that error.

func (*GitHubRepo) ForeachMilestone

func (gr *GitHubRepo) ForeachMilestone(fn func(*GitHubMilestone) error) error

ForeachMilestone calls fn for each milestone in the repo, in unsorted order.

Iteration ends if fn returns an error, with that error.

func (*GitHubRepo) ID

func (gr *GitHubRepo) ID() GitHubRepoID

func (*GitHubRepo) Issue

func (gr *GitHubRepo) Issue(n int32) *GitHubIssue

Issue returns the the provided issue number, or nil if it's not known.

type GitHubRepoID

type GitHubRepoID struct {
	Owner, Repo string

GitHubRepoID is a GitHub org & repo, lowercase.

func (GitHubRepoID) String

func (id GitHubRepoID) String() string

type GitHubReview

type GitHubReview struct {
	ID               int64
	Actor            *GitHubUser
	Body             string
	CommitID         string
	ActorAssociation string // CONTRIBUTOR
	Created          time.Time
	OtherJSON        string

GitHubReview represents a review on a Pull Request. For more details, see

func (*GitHubReview) Proto

func (e *GitHubReview) Proto() *maintpb.GithubReview

Proto converts GitHubReview to a protobuf

type GitHubTeam

type GitHubTeam struct {
	ID int64

	// Slug is a URL-friendly representation of the team name.
	// It is unique across a GitHub organization.
	Slug string

GitHubTeam represents a GitHub team. It is a subset of

type GitHubUser

type GitHubUser struct {
	ID    int64
	Login string

GitHubUser represents a GitHub user. It is a subset of

type GitPerson

type GitPerson struct {
	Str string // "Foo Bar <>"

GitPerson is a person in a git commit.

func (*GitPerson) Email

func (p *GitPerson) Email() string

Email returns the GitPerson's email address only, without the name or angle brackets.

func (*GitPerson) Name

func (p *GitPerson) Name() string

func (*GitPerson) String

func (p *GitPerson) String() string

String implements fmt.Stringer.

type LogSegmentJSON

type LogSegmentJSON struct {
	Number int    `json:"number"`
	Size   int64  `json:"size"`
	SHA224 string `json:"sha224"`
	URL    string `json:"url"`

type MutationLogger

type MutationLogger interface {
	Log(*maintpb.Mutation) error

A MutationLogger logs mutations.

type MutationSource

type MutationSource interface {
	// GetMutations returns a channel of mutations or related events.
	// The channel will never be closed.
	// All sends on the returned channel should select
	// on the provided context.
	GetMutations(context.Context) <-chan MutationStreamEvent

A MutationSource yields a log of mutations that will catch a corpus back up to the present.

func NewNetworkMutationSource

func NewNetworkMutationSource(server, cacheDir string) MutationSource

NewNetworkMutationSource returns a mutation source from a master server. The server argument should be a URL to the JSON logs index.

type MutationStreamEvent

type MutationStreamEvent struct {
	Mutation *maintpb.Mutation

	// Err is a fatal error reading the log. No other events will
	// follow an Err.
	Err error

	// End, if true, means that all mutations have been sent and
	// the next event might take some time to arrive (it might not
	// have occurred yet). The End event is not a terminal state
	// like Err. There may be multiple Ends.
	End bool

MutationStreamEvent represents one of three possible events while reading mutations from disk or another source. An event is either a mutation, an error, or reaching the current end of the log. Exactly one of the three fields will be non-zero.


Path Synopsis
godata Package godata loads the Go project's corpus of Git, Github, and Gerrit activity into memory to allow easy analysis without worrying about APIs and their pagination, quotas, and other nuisances and limitations.
gostats The gostats command computes stats about the Go project.
maintnerd The maintnerd command serves project maintainer data from Git, Github, and/or Gerrit.
maintnerd/apipb Package apipb is a generated protocol buffer package.
maintnerd/gcslog Package gcslog is an implementation of maintner.MutationSource and Logger for Google Cloud Storage.
maintnerd/maintapi Package maintapi exposes a gRPC maintner service for a given corpus.
maintnerd/maintapi/version Package version implements logic to parse version of Go tags and release branches.
maintpb Package maintpb is a generated protocol buffer package.
maintq The maintq command queries a maintnerd gRPC server.
maintwatch The maintwatch commands tails the maintner mutation log.
reclog Package reclog contains readers and writers for a record wrapper format used by maintner.
MODULE cmd/maintserve