build/gerrit/gerrit.go

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package gerrit contains code to interact with Gerrit servers.
//
// This package doesn't intend to provide complete coverage of the Gerrit API,
// but only a small subset for the current needs of the Go project infrastructure.
// Its API is not subject to the Go 1 compatibility promise and may change at any time.
// For general-purpose Gerrit API clients, see https://pkg.go.dev/search?q=gerrit.
package gerrit
import (
"bufio"
"bytes"
"context"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"time"
)
// Client is a Gerrit client.
type Client struct {
url string // URL prefix, e.g. "https://go-review.googlesource.com" (without trailing slash)
auth Auth
// HTTPClient optionally specifies an HTTP client to use
// instead of http.DefaultClient.
HTTPClient *http.Client
}
// NewClient returns a new Gerrit client with the given URL prefix
// and authentication mode.
// The url should be just the scheme and hostname. For example, "https://go-review.googlesource.com".
// If auth is nil, a default is used, or requests are made unauthenticated.
func NewClient(url string, auth Auth) *Client {
if auth == nil {
// TODO(bradfitz): use GitCookies auth, once that exists
auth = NoAuth
}
return &Client{
url: strings.TrimSuffix(url, "/"),
auth: auth,
}
}
func (c *Client) httpClient() *http.Client {
if c.HTTPClient != nil {
return c.HTTPClient
}
return http.DefaultClient
}
// ErrResourceNotExist is returned when the requested resource doesn't exist.
// It is only for use with errors.Is.
var ErrResourceNotExist = errors.New("gerrit: requested resource does not exist")
// ErrNotModified is returned when a modification didn't result in any change.
// It is only for use with errors.Is. Not all APIs return this error; check the documentation.
var ErrNotModified = errors.New("gerrit: requested modification resulted in no change")
// HTTPError is the error type returned when a Gerrit API call does not return
// the expected status.
type HTTPError struct {
Res *http.Response // non-nil
Body []byte // 4KB prefix
BodyErr error // any error reading Body
}
func (e *HTTPError) Error() string {
return fmt.Sprintf("HTTP status %s on request to %s; %s", e.Res.Status, e.Res.Request.URL, e.Body)
}
func (e *HTTPError) Is(target error) bool {
switch target {
case ErrResourceNotExist:
return e.Res.StatusCode == http.StatusNotFound
case ErrNotModified:
// As of writing, this error text is the only way to distinguish different Conflict errors. See
// https://cs.opensource.google/gerrit/gerrit/gerrit/+/master:java/com/google/gerrit/server/restapi/change/ChangeEdits.java;l=346;drc=d338da307a518f7f28b94310c1c083c997ca3c6a
// https://cs.opensource.google/gerrit/gerrit/gerrit/+/master:java/com/google/gerrit/server/edit/ChangeEditModifier.java;l=453;drc=3bc970bb3e689d1d340382c3f5e5285d44f91dbf
return e.Res.StatusCode == http.StatusConflict && bytes.Contains(e.Body, []byte("no changes were made"))
default:
return false
}
}
// doArg is an optional argument for the Client.do method.
type doArg interface {
isDoArg()
}
type wantResStatus int
func (wantResStatus) isDoArg() {}
// reqBodyJSON sets the request body to a JSON encoding of v,
// and the request's Content-Type header to "application/json".
type reqBodyJSON struct{ v interface{} }
func (reqBodyJSON) isDoArg() {}
// reqBodyRaw sets the request body to r,
// and the request's Content-Type header to "application/octet-stream".
type reqBodyRaw struct{ r io.Reader }
func (reqBodyRaw) isDoArg() {}
type urlValues url.Values
func (urlValues) isDoArg() {}
// respBodyRaw returns the body of the response. If set, dst is ignored.
type respBodyRaw struct{ rc *io.ReadCloser }
func (respBodyRaw) isDoArg() {}
func (c *Client) do(ctx context.Context, dst interface{}, method, path string, opts ...doArg) error {
var arg url.Values
var requestBody io.Reader
var contentType string
var wantStatus = http.StatusOK
var responseBody *io.ReadCloser
for _, opt := range opts {
switch opt := opt.(type) {
case wantResStatus:
wantStatus = int(opt)
case reqBodyJSON:
b, err := json.MarshalIndent(opt.v, "", " ")
if err != nil {
return err
}
requestBody = bytes.NewReader(b)
contentType = "application/json"
case reqBodyRaw:
requestBody = opt.r
contentType = "application/octet-stream"
case urlValues:
arg = url.Values(opt)
case respBodyRaw:
responseBody = opt.rc
default:
panic(fmt.Sprintf("internal error; unsupported type %T", opt))
}
}
// slashA is either "/a" (for authenticated requests) or "" for unauthenticated.
// See https://gerrit-review.googlesource.com/Documentation/rest-api.html#authentication
slashA := "/a"
if _, ok := c.auth.(noAuth); ok {
slashA = ""
}
u := c.url + slashA + path
if arg != nil {
u += "?" + arg.Encode()
}
req, err := http.NewRequestWithContext(ctx, method, u, requestBody)
if err != nil {
return err
}
if contentType != "" {
req.Header.Set("Content-Type", contentType)
}
if err := c.auth.setAuth(c, req); err != nil {
return fmt.Errorf("setting Gerrit auth: %v", err)
}
res, err := c.httpClient().Do(req)
if err != nil {
return err
}
defer func() {
if responseBody != nil && *responseBody != nil {
// We've handed off the body to the user.
return
}
res.Body.Close()
}()
if res.StatusCode != wantStatus {
body, err := io.ReadAll(io.LimitReader(res.Body, 4<<10))
return &HTTPError{res, body, err}
}
if responseBody != nil {
*responseBody = res.Body
return nil
}
if dst == nil {
// Drain the response body, return an error if it's anything but empty.
body, err := io.ReadAll(io.LimitReader(res.Body, 4<<10))
if err != nil || len(body) != 0 {
return &HTTPError{res, body, err}
}
return nil
}
// The JSON response begins with an XSRF-defeating header
// like ")]}\n". Read that and skip it.
br := bufio.NewReader(res.Body)
if _, err := br.ReadSlice('\n'); err != nil {
return err
}
return json.NewDecoder(br).Decode(dst)
}
// Possible values for the ChangeInfo Status field.
const (
ChangeStatusNew = "NEW"
ChangeStatusAbandoned = "ABANDONED"
ChangeStatusMerged = "MERGED"
)
// ChangeInfo is a Gerrit data structure.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-info
type ChangeInfo struct {
// The ID of the change. Subject to a 'GerritBackendFeature__return_new_change_info_id' experiment,
// the format is either "'<project>~<_number>'" (new format),
// or "'<project>~<branch>~<Change-Id>'" (old format).
// 'project', '_number', and 'branch' are URL encoded.
// For 'branch' the refs/heads/ prefix is omitted.
// The callers must not rely on the format.
ID string `json:"id"`
// ChangeNumber is a change number like "4247".
ChangeNumber int `json:"_number"`
// ChangeID is the Change-Id footer value like "I8473b95934b5732ac55d26311a706c9c2bde9940".
// Note that some of the functions in this package take a changeID parameter that is a {change-id},
// which is a distinct concept from a Change-Id footer. (See the documentation links for details,
// including https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-id).
ChangeID string `json:"change_id"`
Project string `json:"project"`
// Branch is the name of the target branch.
// The refs/heads/ prefix is omitted.
Branch string `json:"branch"`
Topic string `json:"topic"`
Assignee *AccountInfo `json:"assignee"`
Hashtags []string `json:"hashtags"`
// Subject is the subject of the change
// (the header line of the commit message).
Subject string `json:"subject"`
// Status is the status of the change (NEW, SUBMITTED, MERGED,
// ABANDONED, DRAFT).
Status string `json:"status"`
Created TimeStamp `json:"created"`
Updated TimeStamp `json:"updated"`
Submitted TimeStamp `json:"submitted"`
Submitter *AccountInfo `json:"submitter"`
SubmitType string `json:"submit_type"`
// Mergeable indicates whether the change can be merged.
// It is not set for already-merged changes,
// nor if the change is untested, nor if the
// SKIP_MERGEABLE option has been set.
Mergeable bool `json:"mergeable"`
// Submittable indicates whether the change can be submitted.
// It is only set if requested, using the "SUBMITTABLE" option.
Submittable bool `json:"submittable"`
// Insertions and Deletions count inserted and deleted lines.
Insertions int `json:"insertions"`
Deletions int `json:"deletions"`
// CurrentRevision is the commit ID of the current patch set
// of this change. This is only set if the current revision
// is requested or if all revisions are requested (fields
// "CURRENT_REVISION" or "ALL_REVISIONS").
CurrentRevision string `json:"current_revision"`
// Revisions maps a commit ID of the patch set to a
// RevisionInfo entity.
//
// Only set if the current revision is requested (in which
// case it will only contain a key for the current revision)
// or if all revisions are requested.
Revisions map[string]RevisionInfo `json:"revisions"`
// Owner is the author of the change.
// The details are only filled in if field "DETAILED_ACCOUNTS" is requested.
Owner *AccountInfo `json:"owner"`
// Messages are included if field "MESSAGES" is requested.
Messages []ChangeMessageInfo `json:"messages"`
// Labels maps label names to LabelInfo entries.
Labels map[string]LabelInfo `json:"labels"`
// ReviewerUpdates are included if field "REVIEWER_UPDATES" is requested.
ReviewerUpdates []ReviewerUpdateInfo `json:"reviewer_updates"`
// Reviewers maps reviewer state ("REVIEWER", "CC", "REMOVED")
// to a list of accounts.
// REVIEWER lists users with at least one non-zero vote on the change.
// CC lists users added to the change who has not voted.
// REMOVED lists users who were previously reviewers on the change
// but who have been removed.
// Reviewers is only included if "DETAILED_LABELS" is requested.
Reviewers map[string][]*AccountInfo `json:"reviewers"`
// WorkInProgress indicates that the change is marked as a work in progress.
// (This means it is not yet ready for review, but it is still publicly visible.)
WorkInProgress bool `json:"work_in_progress"`
// HasReviewStarted indicates whether the change has ever been marked
// ready for review in the past (not as a work in progress).
HasReviewStarted bool `json:"has_review_started"`
// RevertOf lists the numeric Change-Id of the change that this change reverts.
RevertOf int `json:"revert_of"`
// MoreChanges is set on the last change from QueryChanges if
// the result set is truncated by an 'n' parameter.
MoreChanges bool `json:"_more_changes"`
}
// ReviewerUpdateInfo is a Gerrit data structure.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#review-update-info
type ReviewerUpdateInfo struct {
Updated TimeStamp `json:"updated"`
UpdatedBy *AccountInfo `json:"updated_by"`
Reviewer *AccountInfo `json:"reviewer"`
State string // "REVIEWER", "CC", or "REMOVED"
}
// AccountInfo is a Gerrit data structure. It's used both for getting the details
// for a single account, as well as for querying multiple accounts.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#account-info.
type AccountInfo struct {
NumericID int64 `json:"_account_id"`
Name string `json:"name,omitempty"`
Email string `json:"email,omitempty"`
Username string `json:"username,omitempty"`
Tags []string `json:"tags,omitempty"`
// MoreAccounts is set on the last account from QueryAccounts if
// the result set is truncated by an 'n' parameter (or has more).
MoreAccounts bool `json:"_more_accounts"`
}
func (ai *AccountInfo) Equal(v *AccountInfo) bool {
if ai == nil || v == nil {
return false
}
return ai.NumericID == v.NumericID
}
type ChangeMessageInfo struct {
ID string `json:"id"`
Author *AccountInfo `json:"author"`
Time TimeStamp `json:"date"`
Message string `json:"message"`
Tag string `json:"tag,omitempty"`
RevisionNumber int `json:"_revision_number"`
}
// The LabelInfo entity contains information about a label on a
// change, always corresponding to the current patch set.
//
// There are two options that control the contents of LabelInfo:
// LABELS and DETAILED_LABELS.
//
// For a quick summary of the state of labels, use LABELS.
//
// For detailed information about labels, including exact numeric
// votes for all users and the allowed range of votes for the current
// user, use DETAILED_LABELS.
type LabelInfo struct {
// Optional means the label may be set, but its neither
// necessary for submission nor does it block submission if
// set.
Optional bool `json:"optional"`
// Fields set by LABELS field option:
Approved *AccountInfo `json:"approved"`
// Fields set by DETAILED_LABELS option:
All []ApprovalInfo `json:"all"`
}
type ApprovalInfo struct {
AccountInfo
Value int `json:"value"`
Date TimeStamp `json:"date"`
}
// The RevisionInfo entity contains information about a patch set. Not
// all fields are returned by default. Additional fields can be
// obtained by adding o parameters as described at:
// https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes
type RevisionInfo struct {
Draft bool `json:"draft"`
PatchSetNumber int `json:"_number"`
Created TimeStamp `json:"created"`
Uploader *AccountInfo `json:"uploader"`
Ref string `json:"ref"`
Fetch map[string]*FetchInfo `json:"fetch"`
Commit *CommitInfo `json:"commit"`
Files map[string]*FileInfo `json:"files"`
CommitWithFooters string `json:"commit_with_footers"`
Kind string `json:"kind"`
// TODO: more
}
type CommitInfo struct {
Author GitPersonInfo `json:"author"`
Committer GitPersonInfo `json:"committer"`
CommitID string `json:"commit"`
Subject string `json:"subject"`
Message string `json:"message"`
Parents []CommitInfo `json:"parents"`
}
type GitPersonInfo struct {
Name string `json:"name"`
Email string `json:"Email"`
Date TimeStamp `json:"date"`
TZOffset int `json:"tz"`
}
func (gpi *GitPersonInfo) Equal(v *GitPersonInfo) bool {
if gpi == nil {
if gpi != v {
return false
}
return true
}
return gpi.Name == v.Name && gpi.Email == v.Email && gpi.Date.Equal(v.Date) &&
gpi.TZOffset == v.TZOffset
}
// Possible values for the FileInfo Status field.
const (
FileInfoAdded = "A"
FileInfoDeleted = "D"
FileInfoRenamed = "R"
FileInfoCopied = "C"
FileInfoRewritten = "W"
)
type FileInfo struct {
Status string `json:"status"`
Binary bool `json:"binary"`
OldPath string `json:"old_path"`
LinesInserted int `json:"lines_inserted"`
LinesDeleted int `json:"lines_deleted"`
}
type FetchInfo struct {
URL string `json:"url"`
Ref string `json:"ref"`
Commands map[string]string `json:"commands"`
}
// QueryChangesOpt are options for QueryChanges.
type QueryChangesOpt struct {
// N is the number of results to return.
// If 0, the 'n' parameter is not sent to Gerrit.
N int
// Start is the number of results to skip (useful in pagination).
// To figure out if there are more results, the last ChangeInfo struct
// in the last call to QueryChanges will have the field MoreAccounts=true.
// If 0, the 'S' parameter is not sent to Gerrit.
Start int
// Fields are optional fields to also return.
// Example strings include "ALL_REVISIONS", "LABELS", "MESSAGES".
// For a complete list, see:
// https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-info
Fields []string
}
func condInt(n int) []string {
if n != 0 {
return []string{strconv.Itoa(n)}
}
return nil
}
// QueryChanges queries changes. The q parameter is a Gerrit search query.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes
// For the query syntax, see https://gerrit-review.googlesource.com/Documentation/user-search.html#_search_operators
func (c *Client) QueryChanges(ctx context.Context, q string, opts ...QueryChangesOpt) ([]*ChangeInfo, error) {
var opt QueryChangesOpt
switch len(opts) {
case 0:
case 1:
opt = opts[0]
default:
return nil, errors.New("only 1 option struct supported")
}
var changes []*ChangeInfo
err := c.do(ctx, &changes, "GET", "/changes/", urlValues{
"q": {q},
"n": condInt(opt.N),
"o": opt.Fields,
"S": condInt(opt.Start),
})
return changes, err
}
// GetChange returns information about a single change.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#get-change
func (c *Client) GetChange(ctx context.Context, changeID string, opts ...QueryChangesOpt) (*ChangeInfo, error) {
var opt QueryChangesOpt
switch len(opts) {
case 0:
case 1:
opt = opts[0]
default:
return nil, errors.New("only 1 option struct supported")
}
var change ChangeInfo
err := c.do(ctx, &change, "GET", "/changes/"+changeID, urlValues{
"n": condInt(opt.N),
"o": opt.Fields,
})
return &change, err
}
// GetChangeDetail retrieves a change with labels, detailed labels, detailed
// accounts, and messages.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#get-change-detail
func (c *Client) GetChangeDetail(ctx context.Context, changeID string, opts ...QueryChangesOpt) (*ChangeInfo, error) {
var opt QueryChangesOpt
switch len(opts) {
case 0:
case 1:
opt = opts[0]
default:
return nil, errors.New("only 1 option struct supported")
}
var change ChangeInfo
err := c.do(ctx, &change, "GET", "/changes/"+changeID+"/detail", urlValues{
"o": opt.Fields,
})
if err != nil {
return nil, err
}
return &change, nil
}
// ListChangeComments retrieves a map of published comments for the given change ID.
// The map key is the file path (such as "maintner/git_test.go" or "/PATCHSET_LEVEL").
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-change-comments.
func (c *Client) ListChangeComments(ctx context.Context, changeID string) (map[string][]CommentInfo, error) {
var m map[string][]CommentInfo
if err := c.do(ctx, &m, "GET", "/changes/"+changeID+"/comments"); err != nil {
return nil, err
}
return m, nil
}
// CommentInfo contains information about an inline comment.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#comment-info.
type CommentInfo struct {
PatchSet int `json:"patch_set,omitempty"`
ID string `json:"id"`
Path string `json:"path,omitempty"`
Message string `json:"message,omitempty"`
Updated TimeStamp `json:"updated"`
Author *AccountInfo `json:"author,omitempty"`
InReplyTo string `json:"in_reply_to,omitempty"`
Unresolved *bool `json:"unresolved,omitempty"`
Tag string `json:"tag,omitempty"`
}
// ListFiles retrieves a map of filenames to FileInfo's for the given change ID and revision.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-files
func (c *Client) ListFiles(ctx context.Context, changeID, revision string) (map[string]*FileInfo, error) {
var m map[string]*FileInfo
if err := c.do(ctx, &m, "GET", "/changes/"+changeID+"/revisions/"+revision+"/files"); err != nil {
return nil, err
}
return m, nil
}
// ReviewInput contains information for adding a review to a revision.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#review-input
type ReviewInput struct {
Message string `json:"message,omitempty"`
Labels map[string]int `json:"labels,omitempty"`
Tag string `json:"tag,omitempty"`
// Comments contains optional per-line comments to post.
// The map key is a file path (such as "src/foo/bar.go").
Comments map[string][]CommentInput `json:"comments,omitempty"`
// Reviewers optionally specifies new reviewers to add to the change.
Reviewers []ReviewerInput `json:"reviewers,omitempty"`
}
// ReviewerInput contains information for adding a reviewer to a change.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#reviewer-input
type ReviewerInput struct {
// Reviewer is the ID of the account to be added as reviewer.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#account-id
Reviewer string `json:"reviewer"`
State string `json:"state,omitempty"` // REVIEWER or CC (default: REVIEWER)
}
// CommentInput contains information for creating an inline comment.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#comment-input
type CommentInput struct {
Line int `json:"line,omitempty"`
Message string `json:"message"`
InReplyTo string `json:"in_reply_to,omitempty"`
Unresolved *bool `json:"unresolved,omitempty"`
// TODO(haya14busa): more, as needed.
}
type reviewInfo struct {
Labels map[string]int `json:"labels,omitempty"`
}
// SetReview leaves a message on a change and/or modifies labels.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#set-review
// The changeID is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-id
// The revision is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#revision-id
func (c *Client) SetReview(ctx context.Context, changeID, revision string, review ReviewInput) error {
var res reviewInfo
return c.do(ctx, &res, "POST", fmt.Sprintf("/changes/%s/revisions/%s/review", changeID, revision),
reqBodyJSON{&review})
}
// ReviewerInfo contains information about reviewers of a change.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#reviewer-info
type ReviewerInfo struct {
AccountInfo
Approvals map[string]string `json:"approvals"`
}
// ListReviewers returns all reviewers on a change.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-reviewers
// The changeID is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-id
func (c *Client) ListReviewers(ctx context.Context, changeID string) ([]ReviewerInfo, error) {
var res []ReviewerInfo
if err := c.do(ctx, &res, "GET", fmt.Sprintf("/changes/%s/reviewers", changeID)); err != nil {
return nil, err
}
return res, nil
}
// HashtagsInput is the request body used when modifying a CL's hashtags.
//
// See https://gerrit-documentation.storage.googleapis.com/Documentation/2.15.1/rest-api-changes.html#hashtags-input
type HashtagsInput struct {
Add []string `json:"add"`
Remove []string `json:"remove"`
}
// SetHashtags modifies the hashtags for a CL, supporting both adding
// and removing hashtags in one request. On success it returns the new
// set of hashtags.
//
// See https://gerrit-documentation.storage.googleapis.com/Documentation/2.15.1/rest-api-changes.html#set-hashtags
func (c *Client) SetHashtags(ctx context.Context, changeID string, hashtags HashtagsInput) ([]string, error) {
var res []string
err := c.do(ctx, &res, "POST", fmt.Sprintf("/changes/%s/hashtags", changeID), reqBodyJSON{&hashtags})
return res, err
}
// AddHashtags is a wrapper around SetHashtags that only supports adding tags.
func (c *Client) AddHashtags(ctx context.Context, changeID string, tags ...string) ([]string, error) {
return c.SetHashtags(ctx, changeID, HashtagsInput{Add: tags})
}
// RemoveHashtags is a wrapper around SetHashtags that only supports removing tags.
func (c *Client) RemoveHashtags(ctx context.Context, changeID string, tags ...string) ([]string, error) {
return c.SetHashtags(ctx, changeID, HashtagsInput{Remove: tags})
}
// GetHashtags returns a CL's current hashtags.
//
// See https://gerrit-documentation.storage.googleapis.com/Documentation/2.15.1/rest-api-changes.html#get-hashtags
func (c *Client) GetHashtags(ctx context.Context, changeID string) ([]string, error) {
var res []string
err := c.do(ctx, &res, "GET", fmt.Sprintf("/changes/%s/hashtags", changeID))
return res, err
}
// AbandonChange abandons the given change.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#abandon-change
// The changeID is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-id
// The input for the call is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#abandon-input
func (c *Client) AbandonChange(ctx context.Context, changeID string, message ...string) error {
var msg string
if len(message) > 1 {
panic("invalid use of multiple message inputs")
}
if len(message) == 1 {
msg = message[0]
}
b := struct {
Message string `json:"message,omitempty"`
}{msg}
var change ChangeInfo
return c.do(ctx, &change, "POST", "/changes/"+changeID+"/abandon", reqBodyJSON{&b})
}
// ProjectInput contains the options for creating a new project.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#project-input
type ProjectInput struct {
Parent string `json:"parent,omitempty"`
Description string `json:"description,omitempty"`
SubmitType string `json:"submit_type,omitempty"`
CreateNewChangeForAllNotInTarget string `json:"create_new_change_for_all_not_in_target,omitempty"`
// TODO(bradfitz): more, as needed.
}
// ProjectInfo is information about a Gerrit project.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#project-info
type ProjectInfo struct {
ID string `json:"id"`
Name string `json:"name"`
Parent string `json:"parent"`
CloneURL string `json:"clone_url"`
Description string `json:"description"`
State string `json:"state"`
Branches map[string]string `json:"branches"`
WebLinks []WebLinkInfo `json:"web_links,omitempty"`
}
// ListProjects returns the server's active projects.
//
// The returned slice is sorted by project ID and excludes the "All-Projects" and "All-Users" projects.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#list-projects.
func (c *Client) ListProjects(ctx context.Context) ([]ProjectInfo, error) {
var res map[string]ProjectInfo
err := c.do(ctx, &res, "GET", "/projects/")
if err != nil {
return nil, err
}
var ret []ProjectInfo
for name, pi := range res {
if name == "All-Projects" || name == "All-Users" {
continue
}
if pi.State != "ACTIVE" {
continue
}
// https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#project-info:
// "name not set if returned in a map where the project name is used as map key"
pi.Name = name
ret = append(ret, pi)
}
sort.Slice(ret, func(i, j int) bool { return ret[i].ID < ret[j].ID })
return ret, nil
}
// CreateProject creates a new project.
func (c *Client) CreateProject(ctx context.Context, name string, p ...ProjectInput) (ProjectInfo, error) {
var pi ProjectInput
if len(p) > 1 {
panic("invalid use of multiple project inputs")
}
if len(p) == 1 {
pi = p[0]
}
var res ProjectInfo
err := c.do(ctx, &res, "PUT", fmt.Sprintf("/projects/%s", url.PathEscape(name)), reqBodyJSON{&pi}, wantResStatus(http.StatusCreated))
return res, err
}
// CreateChange creates a new change.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#create-change.
func (c *Client) CreateChange(ctx context.Context, ci ChangeInput) (ChangeInfo, error) {
var res ChangeInfo
err := c.do(ctx, &res, "POST", "/changes/", reqBodyJSON{&ci}, wantResStatus(http.StatusCreated))
return res, err
}
// ChangeInput contains the options for creating a new change.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-input.
type ChangeInput struct {
Project string `json:"project"`
Branch string `json:"branch"`
Subject string `json:"subject"`
}
// ChangeFileContentInChangeEdit puts content of a file to a change edit.
// If no change is made, an error that matches ErrNotModified is returned.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#put-edit-file.
func (c *Client) ChangeFileContentInChangeEdit(ctx context.Context, changeID string, path string, content string) error {
return c.do(ctx, nil, "PUT", "/changes/"+changeID+"/edit/"+url.PathEscape(path),
reqBodyRaw{strings.NewReader(content)}, wantResStatus(http.StatusNoContent))
}
// DeleteFileInChangeEdit deletes a file from a change edit.
// If no change is made, an error that matches ErrNotModified is returned.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#delete-edit-file.
func (c *Client) DeleteFileInChangeEdit(ctx context.Context, changeID string, path string) error {
return c.do(ctx, nil, "DELETE", "/changes/"+changeID+"/edit/"+url.PathEscape(path), wantResStatus(http.StatusNoContent))
}
// PublishChangeEdit promotes the change edit to a regular patch set.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#publish-edit.
func (c *Client) PublishChangeEdit(ctx context.Context, changeID string) error {
return c.do(ctx, nil, "POST", "/changes/"+changeID+"/edit:publish", wantResStatus(http.StatusNoContent))
}
// GetProjectInfo returns info about a project.
func (c *Client) GetProjectInfo(ctx context.Context, name string) (ProjectInfo, error) {
var res ProjectInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/projects/%s", url.PathEscape(name)))
return res, err
}
// BranchInfo is information about a branch.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#branch-info
type BranchInfo struct {
Ref string `json:"ref"`
Revision string `json:"revision"`
CanDelete bool `json:"can_delete"`
}
// GetProjectBranches returns the branches for the project name. The branches are stored in a map
// keyed by reference.
func (c *Client) GetProjectBranches(ctx context.Context, name string) (map[string]BranchInfo, error) {
var res []BranchInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/projects/%s/branches/", url.PathEscape(name)))
if err != nil {
return nil, err
}
m := map[string]BranchInfo{}
for _, bi := range res {
m[bi.Ref] = bi
}
return m, nil
}
// GetBranch gets a particular branch in project.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-branch.
func (c *Client) GetBranch(ctx context.Context, project, branch string) (BranchInfo, error) {
var res BranchInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/projects/%s/branches/%s", url.PathEscape(project), branch))
return res, err
}
// GetFileContent gets a file's contents at a particular commit.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-content-from-commit.
func (c *Client) GetFileContent(ctx context.Context, project, commit, path string) (io.ReadCloser, error) {
var body io.ReadCloser
err := c.do(ctx, nil, "GET", fmt.Sprintf("/projects/%s/commits/%s/files/%s/content", url.PathEscape(project), commit, url.PathEscape(path)), respBodyRaw{&body})
if err != nil {
return nil, err
}
return readCloser{
Reader: base64.NewDecoder(base64.StdEncoding, body),
Closer: body,
}, nil
}
type readCloser struct {
io.Reader
io.Closer
}
// WebLinkInfo is information about a web link.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#web-link-info
type WebLinkInfo struct {
Name string `json:"name"`
URL string `json:"url"`
ImageURL string `json:"image_url"`
}
func (wli *WebLinkInfo) Equal(v *WebLinkInfo) bool {
if wli == nil || v == nil {
return false
}
return wli.Name == v.Name && wli.URL == v.URL && wli.ImageURL == v.ImageURL
}
// TagInfo is information about a tag.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#tag-info
type TagInfo struct {
Ref string `json:"ref"`
Revision string `json:"revision"`
Object string `json:"object,omitempty"`
Message string `json:"message,omitempty"`
Tagger *GitPersonInfo `json:"tagger,omitempty"`
Created TimeStamp `json:"created,omitempty"`
CanDelete bool `json:"can_delete"`
WebLinks []WebLinkInfo `json:"web_links,omitempty"`
}
func (ti *TagInfo) Equal(v *TagInfo) bool {
if ti == nil || v == nil {
return false
}
if ti.Ref != v.Ref || ti.Revision != v.Revision || ti.Object != v.Object ||
ti.Message != v.Message || !ti.Created.Equal(v.Created) || ti.CanDelete != v.CanDelete {
return false
}
if !ti.Tagger.Equal(v.Tagger) {
return false
}
if len(ti.WebLinks) != len(v.WebLinks) {
return false
}
for i := range ti.WebLinks {
if !ti.WebLinks[i].Equal(&v.WebLinks[i]) {
return false
}
}
return true
}
// GetProjectTags returns the tags for the project name. The tags are stored in a map keyed by
// reference.
func (c *Client) GetProjectTags(ctx context.Context, name string) (map[string]TagInfo, error) {
var res []TagInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/projects/%s/tags/", url.PathEscape(name)))
if err != nil {
return nil, err
}
m := map[string]TagInfo{}
for _, ti := range res {
m[ti.Ref] = ti
}
return m, nil
}
// GetTag returns a particular tag on project.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-tag.
func (c *Client) GetTag(ctx context.Context, project, tag string) (TagInfo, error) {
var res TagInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/projects/%s/tags/%s", url.PathEscape(project), url.PathEscape(tag)))
return res, err
}
// TagInput contains information for creating a tag.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#tag-input
type TagInput struct {
// Ref is optional, and when present must be equal to the URL parameter. Removed.
Revision string `json:"revision,omitempty"`
Message string `json:"message,omitempty"`
}
// CreateTag creates a tag on project.
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#create-tag.
func (c *Client) CreateTag(ctx context.Context, project, tag string, input TagInput) (TagInfo, error) {
var res TagInfo
err := c.do(ctx, &res, "PUT", fmt.Sprintf("/projects/%s/tags/%s", project, url.PathEscape(tag)), reqBodyJSON{&input}, wantResStatus(http.StatusCreated))
return res, err
}
// GetAccountInfo gets the specified account's information from Gerrit.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#get-account
// The accountID is https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#account-id
//
// Note that getting "self" is a good way to validate host access, since it only requires peeker
// access to the host, not to any particular repository.
func (c *Client) GetAccountInfo(ctx context.Context, accountID string) (AccountInfo, error) {
var res AccountInfo
err := c.do(ctx, &res, "GET", fmt.Sprintf("/accounts/%s", accountID))
return res, err
}
// QueryAccountsOpt are options for QueryAccounts.
type QueryAccountsOpt struct {
// N is the number of results to return.
// If 0, the 'n' parameter is not sent to Gerrit.
N int
// Start is the number of results to skip (useful in pagination).
// To figure out if there are more results, the last AccountInfo struct
// in the last call to QueryAccounts will have the field MoreAccounts=true.
// If 0, the 'S' parameter is not sent to Gerrit.
Start int
// Fields are optional fields to also return.
// Example strings include "DETAILS", "ALL_EMAILS".
// By default, only the account IDs are returned.
// For a complete list, see:
// https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#query-account
Fields []string
}
// QueryAccounts queries accounts. The q parameter is a Gerrit search query.
// For the API call and query syntax, see https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#query-account
func (c *Client) QueryAccounts(ctx context.Context, q string, opts ...QueryAccountsOpt) ([]*AccountInfo, error) {
var opt QueryAccountsOpt
switch len(opts) {
case 0:
case 1:
opt = opts[0]
default:
return nil, errors.New("only 1 option struct supported")
}
var changes []*AccountInfo
err := c.do(ctx, &changes, "GET", "/accounts/", urlValues{
"q": {q},
"n": condInt(opt.N),
"o": opt.Fields,
"S": condInt(opt.Start),
})
return changes, err
}
type TimeStamp time.Time
func (ts TimeStamp) Equal(v TimeStamp) bool {
return ts.Time().Equal(v.Time())
}
// Gerrit's timestamp layout is like time.RFC3339Nano, but with a space instead of the "T",
// and without a timezone (it's always in UTC).
const timeStampLayout = "2006-01-02 15:04:05.999999999"
func (ts TimeStamp) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf(`"%s"`, ts.Time().UTC().Format(timeStampLayout))), nil
}
func (ts *TimeStamp) UnmarshalJSON(p []byte) error {
if len(p) < 2 {
return errors.New("timestamp too short")
}
if p[0] != '"' || p[len(p)-1] != '"' {
return errors.New("not double-quoted")
}
s := strings.Trim(string(p), "\"")
t, err := time.Parse(timeStampLayout, s)
if err != nil {
return err
}
*ts = TimeStamp(t)
return nil
}
func (ts TimeStamp) Time() time.Time { return time.Time(ts) }
// GroupInfo contains information about a group.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-groups.html#group-info.
type GroupInfo struct {
ID string `json:"id"`
URL string `json:"url"`
Name string `json:"name"`
GroupID int64 `json:"group_id"`
Options GroupOptionsInfo `json:"options"`
Owner string `json:"owner"`
OwnerID string `json:"owner_id"`
}
type GroupOptionsInfo struct {
VisibleToAll bool `json:"visible_to_all"`
}
func (c *Client) GetGroups(ctx context.Context) (map[string]*GroupInfo, error) {
res := make(map[string]*GroupInfo)
err := c.do(ctx, &res, "GET", "/groups/")
for k, gi := range res {
if gi != nil && gi.Name == "" {
gi.Name = k
}
}
return res, err
}
func (c *Client) GetGroupMembers(ctx context.Context, groupID string) ([]AccountInfo, error) {
var ais []AccountInfo
err := c.do(ctx, &ais, "GET", "/groups/"+groupID+"/members")
return ais, err
}
// SubmitChange submits the given change.
// For the API call, see https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#submit-change
// The changeID is https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#change-id
func (c *Client) SubmitChange(ctx context.Context, changeID string) (ChangeInfo, error) {
var change ChangeInfo
err := c.do(ctx, &change, "POST", "/changes/"+changeID+"/submit")
return change, err
}
// MergeableInfo contains information about the mergeability of a change.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#mergeable-info.
type MergeableInfo struct {
SubmitType string `json:"submit_type"`
Strategy string `json:"strategy"`
Mergeable bool `json:"mergeable"`
CommitMerged bool `json:"commit_merged"`
}
// GetMergeable retrieves mergeability information for a change at a specific revision.
func (c *Client) GetMergeable(ctx context.Context, changeID, revision string) (MergeableInfo, error) {
var mergeable MergeableInfo
err := c.do(ctx, &mergeable, "GET", "/changes/"+changeID+"/revisions/"+revision+"/mergeable")
return mergeable, err
}
// ActionInfo contains information about actions a client can make to
// manipulate a resource.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#action-info.
type ActionInfo struct {
Method string `json:"method"`
Label string `json:"label"`
Title string `json:"title"`
Enabled bool `json:"enabled"`
}
// GetRevisionActions retrieves revision actions.
func (c *Client) GetRevisionActions(ctx context.Context, changeID, revision string) (map[string]*ActionInfo, error) {
var actions map[string]*ActionInfo
err := c.do(ctx, &actions, "GET", "/changes/"+changeID+"/revisions/"+revision+"/actions")
return actions, err
}
// RelatedChangeAndCommitInfo contains information about a particular
// change at a particular commit.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#related-change-and-commit-info.
type RelatedChangeAndCommitInfo struct {
Project string `json:"project"`
ChangeID string `json:"change_id"`
ChangeNumber int32 `json:"_change_number"`
Commit CommitInfo `json:"commit"`
Status string `json:"status"`
}
// RelatedChangesInfo contains information about a set of related changes.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#related-changes-info.
type RelatedChangesInfo struct {
Changes []RelatedChangeAndCommitInfo `json:"changes"`
}
// GetRelatedChanges retrieves information about a set of related changes.
func (c *Client) GetRelatedChanges(ctx context.Context, changeID, revision string) (*RelatedChangesInfo, error) {
var changes *RelatedChangesInfo
err := c.do(ctx, &changes, "GET", "/changes/"+changeID+"/revisions/"+revision+"/related")
return changes, err
}
// GetCommitsInRefs gets refs in which the specified commits were merged into.
//
// See https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#commits-included-in.
func (c *Client) GetCommitsInRefs(ctx context.Context, project string, commits, refs []string) (map[string][]string, error) {
result := map[string][]string{}
vals := url.Values{}
vals["commit"] = commits
vals["ref"] = refs
err := c.do(ctx, &result, "GET", "/projects/"+url.PathEscape(project)+"/commits:in", urlValues(vals))
return result, err
}