package gerrit import ( "fmt" goGerrit "github.com/andygrunwald/go-gerrit" "github.com/apex/log" "net/url" ) // passed to gerrit when retrieving changesets var additionalFields = []string{ "LABELS", "CURRENT_REVISION", "CURRENT_COMMIT", "DETAILED_ACCOUNTS", } // IClient defines the gerrit.Client interface type IClient interface { Refresh() error GetHEAD() string GetBaseURL() string GetChangesetURL(changeset *Changeset) string SubmitChangeset(changeset *Changeset) (*Changeset, error) RebaseChangeset(changeset *Changeset, ref string) (*Changeset, error) RemoveTag(changeset *Changeset, tag string) (*Changeset, error) ChangesetIsRebasedOnHEAD(changeset *Changeset) bool SerieIsRebasedOnHEAD(serie *Serie) bool FilterSeries(filter func(s *Serie) bool) []*Serie FindSerie(filter func(s *Serie) bool) *Serie } var _ IClient = &Client{} // Client provides some ways to interact with a gerrit instance type Client struct { client *goGerrit.Client logger *log.Logger baseURL string projectName string branchName string series []*Serie head string } // NewClient initializes a new gerrit client func NewClient(logger *log.Logger, URL, username, password, projectName, branchName string) (*Client, error) { urlParsed, err := url.Parse(URL) if err != nil { return nil, err } urlParsed.User = url.UserPassword(username, password) goGerritClient, err := goGerrit.NewClient(urlParsed.String(), nil) if err != nil { return nil, err } return &Client{ client: goGerritClient, baseURL: URL, logger: logger, projectName: projectName, branchName: branchName, }, nil } // refreshHEAD queries the commit ID of the selected project and branch func (c *Client) refreshHEAD() (string, error) { branchInfo, _, err := c.client.Projects.GetBranch(c.projectName, c.branchName) if err != nil { return "", err } return branchInfo.Revision, nil } // GetHEAD returns the internally stored HEAD func (c *Client) GetHEAD() string { return c.head } // Refresh causes the client to refresh internal view of gerrit func (c *Client) Refresh() error { c.logger.Debug("refreshing from gerrit") HEAD, err := c.refreshHEAD() if err != nil { return err } c.head = HEAD var queryString = fmt.Sprintf("status:open project:%s branch:%s", c.projectName, c.branchName) c.logger.Debugf("fetching changesets: %s", queryString) changesets, err := c.fetchChangesets(queryString) if err != nil { return err } c.logger.Warnf("assembling series…") series, err := AssembleSeries(changesets, c.logger) if err != nil { return err } series = SortSeries(series) c.series = series return nil } // fetchChangesets fetches a list of changesets matching a passed query string func (c *Client) fetchChangesets(queryString string) (changesets []*Changeset, Error error) { opt := &goGerrit.QueryChangeOptions{} opt.Query = []string{ queryString, } opt.AdditionalFields = additionalFields changes, _, err := c.client.Changes.QueryChanges(opt) if err != nil { return nil, err } changesets = make([]*Changeset, 0) for _, change := range *changes { changesets = append(changesets, MakeChangeset(&change)) } return changesets, nil } // fetchChangeset downloads an existing Changeset from gerrit, by its ID // Gerrit's API is a bit sparse, and only returns what you explicitly ask it // This is used to refresh an existing changeset with more data. func (c *Client) fetchChangeset(changeID string) (*Changeset, error) { opt := goGerrit.ChangeOptions{} opt.AdditionalFields = []string{"LABELS", "DETAILED_ACCOUNTS"} changeInfo, _, err := c.client.Changes.GetChange(changeID, &opt) if err != nil { return nil, err } return MakeChangeset(changeInfo), nil } // SubmitChangeset submits a given changeset, and returns a changeset afterwards. // TODO: update HEAD func (c *Client) SubmitChangeset(changeset *Changeset) (*Changeset, error) { changeInfo, _, err := c.client.Changes.SubmitChange(changeset.ChangeID, &goGerrit.SubmitInput{}) if err != nil { return nil, err } return c.fetchChangeset(changeInfo.ChangeID) } // RebaseChangeset rebases a given changeset on top of a given ref // TODO: update HEAD func (c *Client) RebaseChangeset(changeset *Changeset, ref string) (*Changeset, error) { changeInfo, _, err := c.client.Changes.RebaseChange(changeset.ChangeID, &goGerrit.RebaseInput{ Base: ref, }) if err != nil { return changeset, err } return c.fetchChangeset(changeInfo.ChangeID) } // RemoveTag removes the submit queue tag from a changeset and updates gerrit // we never add, that's something users should do in the GUI. func (c *Client) RemoveTag(changeset *Changeset, tag string) (*Changeset, error) { hashTags := changeset.HashTags newHashTags := []string{} for _, hashTag := range hashTags { if hashTag != tag { newHashTags = append(newHashTags, hashTag) } } // TODO: implement setting hashtags api in go-gerrit and use here // https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#set-hashtags return changeset, nil } // GetBaseURL returns the gerrit base URL func (c *Client) GetBaseURL() string { return c.baseURL } // GetProjectName returns the configured gerrit project name func (c *Client) GetProjectName() string { return c.projectName } // GetBranchName returns the configured gerrit branch name func (c *Client) GetBranchName() string { return c.branchName } // GetChangesetURL returns the URL to view a given changeset func (c *Client) GetChangesetURL(changeset *Changeset) string { return fmt.Sprintf("%s/c/%s/+/%d", c.GetBaseURL(), c.projectName, changeset.Number) } // ChangesetIsRebasedOnHEAD returns true if the changeset is rebased on the current HEAD func (c *Client) ChangesetIsRebasedOnHEAD(changeset *Changeset) bool { if len(changeset.ParentCommitIDs) != 1 { return false } return changeset.ParentCommitIDs[0] == c.head } // SerieIsRebasedOnHEAD returns true if the whole series is rebased on the current HEAD // this is already the case if the first changeset in the series is rebased on the current HEAD func (c *Client) SerieIsRebasedOnHEAD(serie *Serie) bool { // an empty serie should not exist if len(serie.ChangeSets) == 0 { return false } return c.ChangesetIsRebasedOnHEAD(serie.ChangeSets[0]) } // FilterSeries returns a subset of all Series, passing the given filter function func (c *Client) FilterSeries(filter func(s *Serie) bool) []*Serie { matchedSeries := []*Serie{} for _, serie := range c.series { if filter(serie) { matchedSeries = append(matchedSeries, serie) } } return matchedSeries } // FindSerie returns the first serie that matches the filter, or nil if none was found func (c *Client) FindSerie(filter func(s *Serie) bool) *Serie { for _, serie := range c.series { if filter(serie) { return serie } } return nil }