vendors: add github.com/xanzy/go-gitlab vendors

1 files changed, 1112 insertions, 0 deletions

diff --git a/vendor/github.com/xanzy/go-gitlab/discussions.go b/vendor/github.com/xanzy/go-gitlab/discussions.go
new file mode 100644
index 00000000..7a964f14
--- /dev/null
+++ b/vendor/github.com/xanzy/go-gitlab/discussions.go
@@ -0,0 +1,1112 @@
+//
+// Copyright 2018, Sander van Harmelen
+//
+// 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 gitlab
+
+import (
+	"fmt"
+	"time"
+)
+
+// DiscussionsService handles communication with the discussions related
+// methods of the GitLab API.
+//
+// GitLab API docs: https://docs.gitlab.com/ce/api/discussions.html
+type DiscussionsService struct {
+	client *Client
+}
+
+// Discussion represents a GitLab discussion.
+//
+// GitLab API docs: https://docs.gitlab.com/ce/api/discussions.html
+type Discussion struct {
+	ID             string  `json:"id"`
+	IndividualNote bool    `json:"individual_note"`
+	Notes          []*Note `json:"notes"`
+}
+
+func (d Discussion) String() string {
+	return Stringify(d)
+}
+
+// ListIssueDiscussionsOptions represents the available ListIssueDiscussions()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-project-issue-discussions
+type ListIssueDiscussionsOptions ListOptions
+
+// ListIssueDiscussions gets a list of all discussions for a single
+// issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-project-issue-discussions
+func (s *DiscussionsService) ListIssueDiscussions(pid interface{}, issue int, opt *ListIssueDiscussionsOptions, options ...OptionFunc) ([]*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions", pathEscape(project), issue)
+
+	req, err := s.client.NewRequest("GET", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var ds []*Discussion
+	resp, err := s.client.Do(req, &ds)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return ds, resp, err
+}
+
+// GetIssueDiscussion returns a single discussion for a specific project issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#get-single-issue-discussion
+func (s *DiscussionsService) GetIssueDiscussion(pid interface{}, issue int, discussion string, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions/%s",
+		pathEscape(project),
+		issue,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("GET", u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// CreateIssueDiscussionOptions represents the available CreateIssueDiscussion()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-issue-discussion
+type CreateIssueDiscussionOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// CreateIssueDiscussion creates a new discussion to a single project issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-issue-discussion
+func (s *DiscussionsService) CreateIssueDiscussion(pid interface{}, issue int, opt *CreateIssueDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions", pathEscape(project), issue)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// AddIssueDiscussionNoteOptions represents the available AddIssueDiscussionNote()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-issue-discussion
+type AddIssueDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// AddIssueDiscussionNote creates a new discussion to a single project issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-issue-discussion
+func (s *DiscussionsService) AddIssueDiscussionNote(pid interface{}, issue int, discussion string, opt *AddIssueDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions/%s/notes",
+		pathEscape(project),
+		issue,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// UpdateIssueDiscussionNoteOptions represents the available
+// UpdateIssueDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-issue-discussion-note
+type UpdateIssueDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// UpdateIssueDiscussionNote modifies existing discussion of an issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-issue-discussion-note
+func (s *DiscussionsService) UpdateIssueDiscussionNote(pid interface{}, issue int, discussion string, note int, opt *UpdateIssueDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		issue,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// DeleteIssueDiscussionNote deletes an existing discussion of an issue.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#delete-an-issue-discussion-note
+func (s *DiscussionsService) DeleteIssueDiscussionNote(pid interface{}, issue int, discussion string, note int, options ...OptionFunc) (*Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, err
+	}
+	u := fmt.Sprintf("projects/%s/issues/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		issue,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("DELETE", u, nil, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}
+
+// ListSnippetDiscussionsOptions represents the available ListSnippetDiscussions()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-all-snippet-discussions
+type ListSnippetDiscussionsOptions ListOptions
+
+// ListSnippetDiscussions gets a list of all discussions for a single
+// snippet. Snippet discussions are comments users can post to a snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-all-snippet-discussions
+func (s *DiscussionsService) ListSnippetDiscussions(pid interface{}, snippet int, opt *ListSnippetDiscussionsOptions, options ...OptionFunc) ([]*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions", pathEscape(project), snippet)
+
+	req, err := s.client.NewRequest("GET", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var ds []*Discussion
+	resp, err := s.client.Do(req, &ds)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return ds, resp, err
+}
+
+// GetSnippetDiscussion returns a single discussion for a given snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#get-single-snippet-discussion
+func (s *DiscussionsService) GetSnippetDiscussion(pid interface{}, snippet int, discussion string, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions/%s",
+		pathEscape(project),
+		snippet,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("GET", u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// CreateSnippetDiscussionOptions represents the available
+// CreateSnippetDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-snippet-discussion
+type CreateSnippetDiscussionOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// CreateSnippetDiscussion creates a new discussion for a single snippet.
+// Snippet discussions are comments users can post to a snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-snippet-discussion
+func (s *DiscussionsService) CreateSnippetDiscussion(pid interface{}, snippet int, opt *CreateSnippetDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions", pathEscape(project), snippet)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// AddSnippetDiscussionNoteOptions represents the available
+// AddSnippetDiscussionNote() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-snippet-discussion
+type AddSnippetDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// AddSnippetDiscussionNote creates a new discussion to a single project
+// snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-snippet-discussion
+func (s *DiscussionsService) AddSnippetDiscussionNote(pid interface{}, snippet int, discussion string, opt *AddSnippetDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions/%s/notes",
+		pathEscape(project),
+		snippet,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// UpdateSnippetDiscussionNoteOptions represents the available
+// UpdateSnippetDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-snippet-discussion-note
+type UpdateSnippetDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// UpdateSnippetDiscussionNote modifies existing discussion of a snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-snippet-discussion-note
+func (s *DiscussionsService) UpdateSnippetDiscussionNote(pid interface{}, snippet int, discussion string, note int, opt *UpdateSnippetDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		snippet,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// DeleteSnippetDiscussionNote deletes an existing discussion of a snippet.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#delete-a-snippet-discussion-note
+func (s *DiscussionsService) DeleteSnippetDiscussionNote(pid interface{}, snippet int, discussion string, note int, options ...OptionFunc) (*Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, err
+	}
+	u := fmt.Sprintf("projects/%s/snippets/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		snippet,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("DELETE", u, nil, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}
+
+// ListGroupEpicDiscussionsOptions represents the available
+// ListEpicDiscussions() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#list-all-epic-discussions
+type ListGroupEpicDiscussionsOptions ListOptions
+
+// ListGroupEpicDiscussions gets a list of all discussions for a single
+// epic. Epic discussions are comments users can post to a epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#list-all-epic-discussions
+func (s *DiscussionsService) ListGroupEpicDiscussions(gid interface{}, epic int, opt *ListGroupEpicDiscussionsOptions, options ...OptionFunc) ([]*Discussion, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions",
+		pathEscape(group),
+		epic,
+	)
+
+	req, err := s.client.NewRequest("GET", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var ds []*Discussion
+	resp, err := s.client.Do(req, &ds)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return ds, resp, err
+}
+
+// GetEpicDiscussion returns a single discussion for a given epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#get-single-epic-discussion
+func (s *DiscussionsService) GetEpicDiscussion(gid interface{}, epic int, discussion string, options ...OptionFunc) (*Discussion, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions/%s",
+		pathEscape(group),
+		epic,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("GET", u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// CreateEpicDiscussionOptions represents the available CreateEpicDiscussion()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#create-new-epic-discussion
+type CreateEpicDiscussionOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// CreateEpicDiscussion creates a new discussion for a single epic. Epic
+// discussions are comments users can post to a epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#create-new-epic-discussion
+func (s *DiscussionsService) CreateEpicDiscussion(gid interface{}, epic int, opt *CreateEpicDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions",
+		pathEscape(group),
+		epic,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// AddEpicDiscussionNoteOptions represents the available
+// AddEpicDiscussionNote() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#add-note-to-existing-epic-discussion
+type AddEpicDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// AddEpicDiscussionNote creates a new discussion to a single project epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#add-note-to-existing-epic-discussion
+func (s *DiscussionsService) AddEpicDiscussionNote(gid interface{}, epic int, discussion string, opt *AddEpicDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions/%s/notes",
+		pathEscape(group),
+		epic,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// UpdateEpicDiscussionNoteOptions represents the available UpdateEpicDiscussion()
+// options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#modify-existing-epic-discussion-note
+type UpdateEpicDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// UpdateEpicDiscussionNote modifies existing discussion of a epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#modify-existing-epic-discussion-note
+func (s *DiscussionsService) UpdateEpicDiscussionNote(gid interface{}, epic int, discussion string, note int, opt *UpdateEpicDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions/%s/notes/%d",
+		pathEscape(group),
+		epic,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// DeleteEpicDiscussionNote deletes an existing discussion of a epic.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#delete-an-epic-discussion-note
+func (s *DiscussionsService) DeleteEpicDiscussionNote(gid interface{}, epic int, discussion string, note int, options ...OptionFunc) (*Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epics/%d/discussions/%s/notes/%d",
+		pathEscape(group),
+		epic,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("DELETE", u, nil, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}
+
+// ListMergeRequestDiscussionsOptions represents the available
+// ListMergeRequestDiscussions() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-all-merge-request-discussions
+type ListMergeRequestDiscussionsOptions ListOptions
+
+// ListMergeRequestDiscussions gets a list of all discussions for a single
+// merge request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-all-merge-request-discussions
+func (s *DiscussionsService) ListMergeRequestDiscussions(pid interface{}, mergeRequest int, opt *ListMergeRequestDiscussionsOptions, options ...OptionFunc) ([]*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions",
+		pathEscape(project),
+		mergeRequest,
+	)
+
+	req, err := s.client.NewRequest("GET", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var ds []*Discussion
+	resp, err := s.client.Do(req, &ds)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return ds, resp, err
+}
+
+// GetMergeRequestDiscussion returns a single discussion for a given merge
+// request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#get-single-merge-request-discussion
+func (s *DiscussionsService) GetMergeRequestDiscussion(pid interface{}, mergeRequest int, discussion string, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions/%s",
+		pathEscape(project),
+		mergeRequest,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("GET", u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// CreateMergeRequestDiscussionOptions represents the available
+// CreateMergeRequestDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-merge-request-discussion
+type CreateMergeRequestDiscussionOptions struct {
+	Body      *string       `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time    `url:"created_at,omitempty" json:"created_at,omitempty"`
+	Position  *NotePosition `url:"position,omitempty" json:"position,omitempty"`
+}
+
+// CreateMergeRequestDiscussion creates a new discussion for a single merge
+// request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-merge-request-discussion
+func (s *DiscussionsService) CreateMergeRequestDiscussion(pid interface{}, mergeRequest int, opt *CreateMergeRequestDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions",
+		pathEscape(project),
+		mergeRequest,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// ResolveMergeRequestDiscussionOptions represents the available
+// ResolveMergeRequestDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#resolve-a-merge-request-discussion
+type ResolveMergeRequestDiscussionOptions struct {
+	Resolved *bool `url:"resolved,omitempty" json:"resolved,omitempty"`
+}
+
+// ResolveMergeRequestDiscussion resolves/unresolves whole discussion of a merge
+// request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/discussions.html#resolve-a-merge-request-discussion
+func (s *DiscussionsService) ResolveMergeRequestDiscussion(pid interface{}, mergeRequest int, discussion string, opt *ResolveMergeRequestDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions/%s",
+		pathEscape(project),
+		mergeRequest,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// AddMergeRequestDiscussionNoteOptions represents the available
+// AddMergeRequestDiscussionNote() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-merge-request-discussion
+type AddMergeRequestDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// AddMergeRequestDiscussionNote creates a new discussion to a single project
+// merge request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-merge-request-discussion
+func (s *DiscussionsService) AddMergeRequestDiscussionNote(pid interface{}, mergeRequest int, discussion string, opt *AddMergeRequestDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions/%s/notes",
+		pathEscape(project),
+		mergeRequest,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// UpdateMergeRequestDiscussionNoteOptions represents the available
+// UpdateMergeRequestDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-merge-request-discussion-note
+type UpdateMergeRequestDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+	Resolved  *bool      `url:"resolved,omitempty" json:"resolved,omitempty"`
+}
+
+// UpdateMergeRequestDiscussionNote modifies existing discussion of a merge
+// request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-merge-request-discussion-note
+func (s *DiscussionsService) UpdateMergeRequestDiscussionNote(pid interface{}, mergeRequest int, discussion string, note int, opt *UpdateMergeRequestDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		mergeRequest,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// DeleteMergeRequestDiscussionNote deletes an existing discussion of a merge
+// request.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#delete-a-merge-request-discussion-note
+func (s *DiscussionsService) DeleteMergeRequestDiscussionNote(pid interface{}, mergeRequest int, discussion string, note int, options ...OptionFunc) (*Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, err
+	}
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/discussions/%s/notes/%d",
+		pathEscape(project),
+		mergeRequest,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("DELETE", u, nil, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}
+
+// ListCommitDiscussionsOptions represents the available
+// ListCommitDiscussions() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-project-commit-discussions
+type ListCommitDiscussionsOptions ListOptions
+
+// ListCommitDiscussions gets a list of all discussions for a single
+// commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#list-project-commit-discussions
+func (s *DiscussionsService) ListCommitDiscussions(pid interface{}, commit string, opt *ListCommitDiscussionsOptions, options ...OptionFunc) ([]*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions",
+		pathEscape(project),
+		commit,
+	)
+
+	req, err := s.client.NewRequest("GET", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var ds []*Discussion
+	resp, err := s.client.Do(req, &ds)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return ds, resp, err
+}
+
+// GetCommitDiscussion returns a single discussion for a specific project
+// commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#get-single-commit-discussion
+func (s *DiscussionsService) GetCommitDiscussion(pid interface{}, commit string, discussion string, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions/%s",
+		pathEscape(project),
+		commit,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("GET", u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// CreateCommitDiscussionOptions represents the available
+// CreateCommitDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-commit-discussion
+type CreateCommitDiscussionOptions struct {
+	Body      *string       `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time    `url:"created_at,omitempty" json:"created_at,omitempty"`
+	Position  *NotePosition `url:"position,omitempty" json:"position,omitempty"`
+}
+
+// CreateCommitDiscussion creates a new discussion to a single project commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#create-new-commit-discussion
+func (s *DiscussionsService) CreateCommitDiscussion(pid interface{}, commit string, opt *CreateCommitDiscussionOptions, options ...OptionFunc) (*Discussion, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions",
+		pathEscape(project),
+		commit,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	d := new(Discussion)
+	resp, err := s.client.Do(req, d)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return d, resp, err
+}
+
+// AddCommitDiscussionNoteOptions represents the available
+// AddCommitDiscussionNote() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-commit-discussion
+type AddCommitDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// AddCommitDiscussionNote creates a new discussion to a single project commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#add-note-to-existing-commit-discussion
+func (s *DiscussionsService) AddCommitDiscussionNote(pid interface{}, commit string, discussion string, opt *AddCommitDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions/%s/notes",
+		pathEscape(project),
+		commit,
+		discussion,
+	)
+
+	req, err := s.client.NewRequest("POST", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// UpdateCommitDiscussionNoteOptions represents the available
+// UpdateCommitDiscussion() options.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-commit-discussion-note
+type UpdateCommitDiscussionNoteOptions struct {
+	Body      *string    `url:"body,omitempty" json:"body,omitempty"`
+	CreatedAt *time.Time `url:"created_at,omitempty" json:"created_at,omitempty"`
+}
+
+// UpdateCommitDiscussionNote modifies existing discussion of an commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#modify-existing-commit-discussion-note
+func (s *DiscussionsService) UpdateCommitDiscussionNote(pid interface{}, commit string, discussion string, note int, opt *UpdateCommitDiscussionNoteOptions, options ...OptionFunc) (*Note, *Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions/%s/notes/%d",
+		pathEscape(project),
+		commit,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("PUT", u, opt, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	n := new(Note)
+	resp, err := s.client.Do(req, n)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return n, resp, err
+}
+
+// DeleteCommitDiscussionNote deletes an existing discussion of an commit.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ce/api/discussions.html#delete-an-commit-discussion-note
+func (s *DiscussionsService) DeleteCommitDiscussionNote(pid interface{}, commit string, discussion string, note int, options ...OptionFunc) (*Response, error) {
+	project, err := parseID(pid)
+	if err != nil {
+		return nil, err
+	}
+	u := fmt.Sprintf("projects/%s/repository/commits/%s/discussions/%s/notes/%d",
+		pathEscape(project),
+		commit,
+		discussion,
+		note,
+	)
+
+	req, err := s.client.NewRequest("DELETE", u, nil, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}