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import settings from '../settings';
import { GithubSettings } from './settings';
import * as utils from './utils';
import { Octokit as GitHubApi, RestEndpointMethodTypes } from '@octokit/rest';
import { Endpoints } from '@octokit/types';
import {
GitLabDiscussion,
GitLabDiscussionNote,
GitlabHelper,
GitLabIssue,
GitLabMergeRequest,
GitLabNote,
GitLabUser,
} from './gitlabHelper';
type IssuesListForRepoResponseData =
Endpoints['GET /repos/{owner}/{repo}/issues']['response']['data'];
type PullsListResponseData =
Endpoints['GET /repos/{owner}/{repo}/pulls']['response']['data'];
type GitHubIssue = IssuesListForRepoResponseData[0];
type GitHubPullRequest = PullsListResponseData[0];
const gitHubLocation = 'https://github.com';
// Source for regex: https://stackoverflow.com/a/30281147
const usernameRegex = new RegExp('\\B@([a-z0-9](?:-(?=[a-z0-9])|[a-z0-9]){0,38}(?<=[a-z0-9]))', 'gi')
interface CommentImport {
created_at?: string;
body: string;
}
interface IssueImport {
title: string;
body: string;
closed: boolean;
assignee?: string;
created_at?: string;
updated_at?: string;
closed_at?: string;
milestone?: number;
labels?: string[];
}
export interface MilestoneImport {
id: number; // GitHub internal identifier
iid: number; // GitLab external number
title: string;
description: string;
state: string;
due_date?: string;
}
export interface SimpleLabel {
name: string;
color: string;
description: string;
}
export interface SimpleMilestone {
number: number;
title: string;
}
export class GithubHelper {
githubApi: GitHubApi;
githubUrl: string;
githubOwner: string;
githubOwnerIsOrg: boolean;
githubToken: string;
githubTokenOwner: string;
githubRepo: string;
githubTimeout?: number;
gitlabHelper: GitlabHelper;
repoId?: number;
delayInMs: number;
useIssuesForAllMergeRequests: boolean;
milestoneMap?: Map<number, SimpleMilestone>;
users: Set<string>;
members: Set<string>;
constructor(
githubApi: GitHubApi,
githubSettings: GithubSettings,
gitlabHelper: GitlabHelper,
useIssuesForAllMergeRequests: boolean
) {
this.githubApi = githubApi;
this.githubUrl = githubSettings.baseUrl
? githubSettings.baseUrl
: gitHubLocation;
this.githubOwner = githubSettings.owner;
this.githubOwnerIsOrg = githubSettings.ownerIsOrg ?? false;
this.githubToken = githubSettings.token;
this.githubTokenOwner = githubSettings.token_owner;
this.githubRepo = githubSettings.repo;
this.githubTimeout = githubSettings.timeout;
this.gitlabHelper = gitlabHelper;
this.delayInMs = 2000;
this.useIssuesForAllMergeRequests = useIssuesForAllMergeRequests;
this.users = new Set<string>();
this.members = new Set<string>();
if (this.githubOwnerIsOrg) {
githubApi.orgs.listMembers( {
org: this.githubOwner,
}).then(members => {
for (let member of members.data) {
this.members.add(member.login);
}
}).catch(err => {
console.error(`Failed to fetch organization members: ${err}`);
});
}
}
/*
******************************************************************************
******************************** GET METHODS *********************************
******************************************************************************
*/
/**
* Store the new repo id
*/
async registerRepoId() {
try {
await utils.sleep(this.delayInMs);
let result = await this.githubApi.repos.get({
owner: this.githubOwner,
repo: this.githubRepo,
});
this.repoId = result.data.id;
} catch (err) {
console.error('Could not access GitHub repo');
console.error(err);
process.exit(1);
}
}
// ----------------------------------------------------------------------------
/**
* Get a list of all GitHub milestones currently in new repo
*/
async getAllGithubMilestones(): Promise<SimpleMilestone[]> {
try {
let allMilestones: SimpleMilestone[] = [];
let page = 1;
const perPage = 100;
while (true) {
await utils.sleep(this.delayInMs);
const result = await this.githubApi.issues.listMilestones({
owner: this.githubOwner,
repo: this.githubRepo,
state: 'all',
per_page: perPage,
page,
});
if (result.data.length === 0) break;
allMilestones = allMilestones.concat(
result.data.map(x => ({ number: x.number, title: x.title })),
);
if (result.data.length < perPage) break;
page++;
}
return allMilestones;
} catch (err) {
console.error('Could not access all GitHub milestones');
console.error(err);
process.exit(1);
}
}
// ----------------------------------------------------------------------------
/**
* Get a list of all the current GitHub issues.
* This uses a while loop to make sure that each page of issues is received.
*/
async getAllGithubIssues() {
let allIssues: IssuesListForRepoResponseData = [];
let page = 1;
const perPage = 100;
while (true) {
await utils.sleep(this.delayInMs);
// get a paginated list of issues
const issues = await this.githubApi.issues.listForRepo({
owner: this.githubOwner,
repo: this.githubRepo,
state: 'all',
// Remove label filter to get ALL issues for proper duplicate detection
// labels: 'gitlab merge request',
per_page: perPage,
page: page,
});
// if this page has zero issues then we are done!
if (issues.data.length === 0) break;
// join this list of issues with the master list
allIssues = allIssues.concat(issues.data);
// if there are strictly less issues on this page than the maximum number per page
// then we can be sure that this is all the issues. No use querying again.
if (issues.data.length < perPage) break;
// query for the next page of issues next iteration
page++;
}
return allIssues;
}
// ----------------------------------------------------------------------------
/**
* Get a list of all GitHub label names currently in new repo
*/
async getAllGithubLabelNames() {
try {
await utils.sleep(this.delayInMs);
// get an array of GitHub labels for the new repo
const labels = await this.githubApi.paginate(
this.githubApi.issues.listLabelsForRepo,
{
owner: this.githubOwner,
repo: this.githubRepo,
per_page: 100,
},
// extract the label name and put into a new array
response => response.data.map(label => label.name)
);
return labels;
} catch (err) {
console.error('Could not access all GitHub label names');
console.error(err);
process.exit(1);
}
}
// ----------------------------------------------------------------------------
/**
* Gets a release by tag name
* @param tag {string} - the tag name to search a release for
* @returns
*/
async getReleaseByTag(tag: string) {
try {
await utils.sleep(this.delayInMs);
// get an existing release by tag name in github
let result = await this.githubApi.repos.getReleaseByTag({
owner: this.githubOwner,
repo: this.githubRepo,
tag: tag,
});
return result;
} catch (err) {
console.error('No existing release for this tag on github');
return null;
}
}
// ----------------------------------------------------------------------------
/**
* Creates a new release on github
* @param tag_name {string} - the tag name
* @param name {string} - title of the release
* @param body {string} - description for the release
*/
async createRelease(tag_name: string, name: string, body: string) {
try {
await utils.sleep(this.delayInMs);
// get an array of GitHub labels for the new repo
let result = await this.githubApi.repos.createRelease({
owner: this.githubOwner,
repo: this.githubRepo,
tag_name,
name,
body,
});
return result;
} catch (err) {
console.error('Could not create release on github');
console.error(err);
return null;
}
}
// ----------------------------------------------------------------------------
/**
* Get a list of all the current GitHub pull requests.
* This uses a while loop to make sure that each page of issues is received.
*/
async getAllGithubPullRequests() {
let allPullRequests: PullsListResponseData = [];
let page = 1;
const perPage = 100;
while (true) {
await utils.sleep(this.delayInMs);
// get a paginated list of pull requests
const pullRequests = await this.githubApi.pulls.list({
owner: this.githubOwner,
repo: this.githubRepo,
state: 'all',
per_page: perPage,
page: page,
});
// if this page has zero PRs then we are done!
if (pullRequests.data.length === 0) break;
// join this list of PRs with the master list
allPullRequests = allPullRequests.concat(pullRequests.data);
// if there are strictly less PRs on this page than the maximum number per page
// then we can be sure that this is all the PRs. No use querying again.
if (pullRequests.data.length < perPage) break;
// query for the next page of PRs next iteration
page++;
}
return allPullRequests;
}
// ----------------------------------------------------------------------------
/*
******************************************************************************
******************************** POST METHODS ********************************
******************************************************************************
*/
userIsCreator(author: GitLabUser) {
this.users.add(author.username as string);
return (
author &&
((settings.usermap &&
settings.usermap[author.username as string] ===
settings.github.token_owner) ||
author.username === settings.github.token_owner)
);
}
/**
* Update the description of the repository on GitHub.
* Replaces newlines and tabs with spaces. No attempt is made to remove e.g. Markdown
* links or other special formatting.
*/
async updateRepositoryDescription(description: string) {
let props: RestEndpointMethodTypes['repos']['update']['parameters'] = {
owner: this.githubOwner,
repo: this.githubRepo,
description: description?.replace(/\s+/g, ' ') || '',
};
return this.githubApi.repos.update(props);
}
/**
* TODO description
* @param milestones All GitHub milestones
* @param issue The GitLab issue object
*/
async createIssue(issue: GitLabIssue) {
let bodyConverted = await this.convertIssuesAndComments(
issue.description ?? '',
issue,
!this.userIsCreator(issue.author) || !issue.description,
true,
true,
);
let props: RestEndpointMethodTypes['issues']['create']['parameters'] = {
owner: this.githubOwner,
repo: this.githubRepo,
title: issue.title ? issue.title.trim() : '',
body: bodyConverted,
};
props.assignees = this.convertAssignees(issue);
props.milestone = this.convertMilestone(issue);
props.labels = this.convertLabels(issue);
await utils.sleep(this.delayInMs);
if (settings.dryRun) return Promise.resolve({ data: issue });
return this.githubApi.issues.create(props);
}
/**
* Converts GitLab assignees to GitHub usernames, using settings.usermap
*/
convertAssignees(item: GitLabIssue | GitLabMergeRequest): string[] {
if (!item.assignees) return [];
let assignees: string[] = [];
for (let assignee of item.assignees) {
let username: string = assignee.username as string;
this.users.add(username);
if (username === settings.github.username) {
assignees.push(settings.github.username);
} else if (settings.usermap && settings.usermap[username]) {
let gitHubUsername = settings.usermap[username];
if (this.members.has(gitHubUsername)) {
assignees.push(gitHubUsername);
}
else {
console.log(`Cannot assign assignee: User ${gitHubUsername} is not a member of ${this.githubOwner}`);
}
}
}
return assignees;
}
/**
* Returns the GitHub milestone id for a milestone GitLab property of an issue or MR
*
* Note that this requires milestoneMap to be built, either during migration
* or read from GitHub using registerMilestoneMap()
*/
convertMilestone(item: GitLabIssue | GitLabMergeRequest): number | undefined {
if (!this.milestoneMap) throw Error('this.milestoneMap not initialised');
if (!item.milestone) return undefined;
for (let m of this.milestoneMap.values())
if (m.title == item.milestone.title) return m.number;
return undefined;
}
/**
* Converts GitLab labels to GitHub labels.
*
* This also adds "has attachment" if the issue links to data.
*/
convertLabels(item: GitLabIssue | GitLabMergeRequest): string[] {
let labels: string[] = [];
if (item.labels) {
labels = item.labels.filter(l => {
if (item.state !== 'closed') return true;
let lower = l.toLowerCase();
// ignore any labels that should have been removed when the issue was closed
return lower !== 'doing' && lower !== 'to do';
});
if (settings.conversion.useLowerCaseLabels) {
labels = labels.map((el: string) => el.toLowerCase());
}
}
// If the item's description contains a url that contains "/uploads/",
// it is likely to have an attachment
if (
item.description &&
item.description.indexOf('/uploads/') > -1 &&
!settings.s3
) {
labels.push('has attachment');
}
// Differentiate between issue and merge request
// Note that it needs to apply to placeholders as well
if ('merge_requests_count' in item) {
labels.push('gitlab issue');
} else {
labels.push('gitlab merge request');
}
if (item.state === 'merged') {
labels.push('merged');
}
return labels;
}
/**
* Uses the preview issue import API to set creation date on issues and comments.
* Also it does not notify assignees.
*
* See https://gist.github.com/jonmagic/5282384165e0f86ef105
* @param milestones All GitHub milestones
* @param issue The GitLab issue object
*/
async importIssueAndComments(issue: GitLabIssue) {
let bodyConverted = issue.isPlaceholder
? issue.description ?? ''
: await this.convertIssuesAndComments(
issue.description ?? '',
issue,
!this.userIsCreator(issue.author) || !issue.description,
true,
true,
);
let props: IssueImport = {
title: issue.title ? issue.title.trim() : '',
body: bodyConverted,
created_at: issue.created_at,
updated_at: issue.updated_at,
closed: issue.state === 'closed',
};
if (issue.state === 'closed' && issue.closed_at) {
props.closed_at = issue.closed_at;
}
let assignees = this.convertAssignees(issue);
props.assignee = assignees.length == 1 ? assignees[0] : undefined;
props.milestone = this.convertMilestone(issue);
props.labels = this.convertLabels(issue);
if (settings.dryRun) return Promise.resolve({ data: issue });
//
// Issue comments
//
console.log('\tMigrating issue comments...');
let comments: CommentImport[] = [];
if (issue.isPlaceholder) {
console.log(
'\t...this is a placeholder issue, no comments are migrated.'
);
} else {
let notes = await this.gitlabHelper.getIssueNotes(issue.iid);
comments = await this.processNotesIntoComments(notes);
}
const issue_number = await this.requestImportIssue(props, comments);
if (assignees.length > 1 && issue_number) {
if (assignees.length > 10) {
console.error(
`Cannot add more than 10 assignees to GitHub issue #${issue_number}.`
);
} else {
console.log(
`Importing ${assignees.length} assignees for GitHub issue #${issue_number}`
);
}
this.githubApi.issues.addAssignees({
owner: this.githubOwner,
repo: this.githubRepo,
issue_number: issue_number,
assignees: assignees,
});
}
}
/**
*
* @param notes
* @returns Comments ready for requestImportIssue()
*/
async processNotesIntoComments(
notes: GitLabNote[]
): Promise<CommentImport[]> {
if (!notes || !notes.length) {
console.log(`\t...no comments available, nothing to migrate.`);
return [];
}
let comments: CommentImport[] = [];
// sort notes in ascending order of when they were created (by id)
notes = notes.sort((a, b) => a.id - b.id);
let nrOfMigratedNotes = 0;
for (let note of notes) {
if (this.checkIfNoteCanBeSkipped(note.body)) continue;
this.users.add(note.author.username);
let userIsPoster =
(settings.usermap &&
settings.usermap[note.author.username] ===
settings.github.token_owner) ||
note.author.username === settings.github.token_owner;
comments.push({
created_at: note.created_at,
body: await this.convertIssuesAndComments(
note.body,
note,
!userIsPoster || !note.body
),
});
nrOfMigratedNotes++;
}
console.log(
`\t...Done creating comments (migrated ${nrOfMigratedNotes} comments, skipped ${
notes.length - nrOfMigratedNotes
} comments)`
);
return comments;
}
/**
*
* @param discussions
* @returns Comments ready for requestImportIssue()
*/
async processDiscussionsIntoComments(
discussions: GitLabDiscussion[]
): Promise<CommentImport[]> {
if (!discussions || !discussions.length) {
console.log(`\t...no comments available, nothing to migrate.`);
return [];
}
let comments: CommentImport[] = [];
// sort notes in ascending order of when they were created (by id)
discussions = discussions.sort((a, b) => Number.parseInt(a.id) - Number.parseInt(b.id));
let nrOfMigratedNotes = 0;
let nrOfSkippedNotes = 0;
for (let discussion of discussions) {
let discussionComments = [];
for (let note of discussion.notes) {
if (this.checkIfNoteCanBeSkipped(note.body)) {
nrOfSkippedNotes++;
continue;
}
let username = note.author.username as string;
this.users.add(username);
let userIsPoster =
(settings.usermap &&
settings.usermap[username] ===
settings.github.token_owner) ||
username === settings.github.token_owner;
// only add line ref for first note of discussion
const add_line_ref = discussion.notes.indexOf(note) === 0;
discussionComments.push({
created_at: note.created_at,
body: await this.convertIssuesAndComments(
note.body,
note,
!userIsPoster || !note.body,
add_line_ref,
),
});
nrOfMigratedNotes++;
}
// Combine notes for discussion into one comment
if (discussionComments.length == 1) {
comments.push(discussionComments[0]);
}
else if (discussionComments.length > 1) {
let combinedBody = '**Discussion in GitLab:**\n\n';
let first_created_at = discussionComments[0].created_at;
combinedBody += discussionComments.map(comment => comment.body).join('\n\n');
comments.push({
created_at: first_created_at,
body: combinedBody,
});
}
}
console.log(
`\t...Done creating discussion comments (migrated ${nrOfMigratedNotes} comments, skipped ${
nrOfSkippedNotes
} comments)`
);
return comments;
}
/**
* Calls the preview API for issue importing
*
* @param issue Props for the issue
* @param comments Comments
* @returns GitHub issue number or null if import failed
*/
async requestImportIssue(
issue: IssueImport,
comments: CommentImport[]
): Promise<number | null> {
// see: https://github.com/orgs/community/discussions/27190
if (issue.body.length > 65536) {
throw `${issue.title} has a body longer than 65536 characters. Please shorten it.`;
}
// create the GitHub issue from the GitLab issue
let pending = await this.githubApi.request(
`POST /repos/${settings.github.owner}/${settings.github.repo}/import/issues`,
{
issue: issue,
comments: comments,
}
);
let result = null;
while (true) {
await utils.sleep(this.delayInMs);
result = await this.githubApi.request(
`GET /repos/${settings.github.owner}/${settings.github.repo}/import/issues/${pending.data.id}`
);
if (
result.data.status === 'imported' ||
result.data.status === 'failed'
) {
break;
}
}
if (result.data.status === 'failed') {
console.log('\tFAILED: ');
console.log(result);
console.log('\tERRORS:');
console.log(result.data.errors);
return null;
}
let issue_number = result.data.issue_url.split('/').splice(-1)[0];
return issue_number;
}
// ----------------------------------------------------------------------------
/**
* TODO description
*/
async createIssueComments(githubIssue: GitHubIssue, issue: GitLabIssue) {
console.log('\tMigrating issue comments...');
// retrieve any notes/comments associated with this issue
if (issue.isPlaceholder) {
console.log(
'\t...this is a placeholder issue, no comments are migrated.'
);
return;
}
let notes = await this.gitlabHelper.getIssueNotes(issue.iid);
// if there are no notes, then there is nothing to do!
if (notes.length === 0) {
console.log(`\t...no issue comments available, nothing to migrate.`);
return;
}
// sort notes in ascending order of when they were created (by id)
notes = notes.sort((a, b) => a.id - b.id);
let nrOfMigratedNotes = 0;
for (let note of notes) {
const gotMigrated = await this.processNote(note, githubIssue);
if (gotMigrated) nrOfMigratedNotes++;
}
console.log(
`\t...Done creating issue comments (migrated ${nrOfMigratedNotes} comments, skipped ${
notes.length - nrOfMigratedNotes
} comments)`
);
}
// ----------------------------------------------------------------------------
/**
* This function checks if a note needs to be processed or if it can be skipped.
* A note can be skipped if it contains predefined terms (like 'Status changed to...')
* or if it contains any value from settings.skipMatchingComments ->
* Note that this is case insensitive!
*
*/
checkIfNoteCanBeSkipped(noteBody: string) {
const stateChange =
(/Status changed to .*/i.test(noteBody) &&
!/Status changed to closed by commit.*/i.test(noteBody)) ||
/^changed milestone to .*/i.test(noteBody) ||
/^Milestone changed to .*/i.test(noteBody) ||
/^(Re)*assigned to /i.test(noteBody) ||
/^added .* labels/i.test(noteBody) ||
/^Added ~.* label/i.test(noteBody) ||
/^removed ~.* label/i.test(noteBody) ||
/^mentioned in issue #\d+.*/i.test(noteBody) ||
// /^marked this issue as related to #\d+/i.test(noteBody) ||
/^mentioned in merge request !\d+/i.test(noteBody) ||
/^changed the description.*/i.test(noteBody) ||
/^changed title from.*to.*/i.test(noteBody);
const matchingComment = settings.skipMatchingComments.reduce(
(a, b) => a || new RegExp(b, 'i').test(noteBody),
false
);
return stateChange || matchingComment;
}
// ----------------------------------------------------------------------------
/*
* Processes the current note.
* This means, it either creates a comment in the github issue, or it gets skipped.
* Return false when it got skipped, otherwise true.
*/
async processNote(
note: GitLabNote | GitLabDiscussionNote,
githubIssue: Pick<GitHubIssue | GitHubPullRequest, 'number'>
) {
if (this.checkIfNoteCanBeSkipped(note.body)) return false;
let bodyConverted = await this.convertIssuesAndComments(note.body, note);
await utils.sleep(this.delayInMs);
if (settings.dryRun) return true;
await this.githubApi.issues
.createComment({
owner: this.githubOwner,
repo: this.githubRepo,
issue_number: githubIssue.number,
body: bodyConverted,
})
.catch(x => {
console.error('could not create GitHub issue comment!');
console.error(x);
process.exit(1);
});
return true;
}
// ----------------------------------------------------------------------------
/**
* Update the issue state (i.e., closed or open).
*/
async updateIssueState(githubIssue: GitHubIssue, issue: GitLabIssue) {
// default state is open so we don't have to update if the issue is closed.
if (issue.state !== 'closed' || githubIssue.state === 'closed') return;
let props: RestEndpointMethodTypes['issues']['update']['parameters'] = {
owner: this.githubOwner,
repo: this.githubRepo,
issue_number: githubIssue.number,
state: issue.state,
};
await utils.sleep(this.delayInMs);
if (settings.dryRun) return Promise.resolve();
return await this.githubApi.issues.update(props);
}
// ----------------------------------------------------------------------------
/**
* Create a GitHub milestone from a GitLab milestone
* @param milestone GitLab milestone data
* @return Created milestone data (or void if debugging => nothing created)
*/
async createMilestone(milestone: MilestoneImport): Promise<SimpleMilestone> {
// convert from GitLab to GitHub
let bodyConverted = await this.convertIssuesAndComments(
milestone.description || '',
milestone,
false
);
let githubMilestone: RestEndpointMethodTypes['issues']['createMilestone']['parameters'] =
{
owner: this.githubOwner,
repo: this.githubRepo,
title: milestone.title,
description: bodyConverted,
state: milestone.state === 'active' ? 'open' : 'closed',
};
if (milestone.due_date) {
githubMilestone.due_on = milestone.due_date + 'T00:00:00Z';
}
await utils.sleep(this.delayInMs);
if (settings.dryRun) return Promise.resolve({ number: -1, title: 'DEBUG' });
const created = await this.githubApi.issues.createMilestone(
githubMilestone
);
return { number: created.data.number, title: created.data.title };
}
// ----------------------------------------------------------------------------
/**
* Create a GitHub label from a GitLab label
*/
async createLabel(label: SimpleLabel) {
// convert from GitLab to GitHub
let githubLabel = {
owner: this.githubOwner,
repo: this.githubRepo,
name: label.name,
color: label.color.substring(1), // remove leading "#" because gitlab returns it but github wants the color without it
description: label.description,
};
await utils.sleep(this.delayInMs);
if (settings.dryRun) return Promise.resolve();
// create the GitHub label
return await this.githubApi.issues.createLabel(githubLabel);
}
// ----------------------------------------------------------------------------
/**
* Create a pull request, set its data, and set its comments
* @param mergeRequest the GitLab merge request that we want to migrate
*/
async createPullRequestAndComments(
mergeRequest: GitLabMergeRequest
): Promise<void> {
let pullRequestData = await this.createPullRequest(mergeRequest);
// createPullRequest() returns an issue number if a PR could not be created and
// an issue was created instead, and settings.useIssueImportAPI is true. In that
// case comments were already added and the state is already properly set
if (typeof pullRequestData === 'number' || !pullRequestData) return;
let pullRequest = pullRequestData.data;
// data is set to null if one of the branches does not exist and the pull request cannot be created
if (pullRequest) {
// Add milestones, labels, and other attributes from the Issues API
await this.updatePullRequestData(pullRequest, mergeRequest);
// add any comments/nodes associated with this pull request
await this.createPullRequestComments(pullRequest, mergeRequest);
// Make sure to close the GitHub pull request if it is closed or merged in GitLab
await this.updatePullRequestState(pullRequest, mergeRequest);
}
}
// ----------------------------------------------------------------------------
/**
* Create a pull request. A pull request can only be created if both the target and source branches exist on the GitHub
* repository. In many cases, the source branch is deleted when the merge occurs, and the merge request may not be able
* to be migrated. In this case, an issue is created instead with a 'gitlab merge request' label.
* @param mergeRequest the GitLab merge request object that we want to duplicate
* @returns {Promise<Promise<{data: null}>|Promise<Github.Response<Github.PullsCreateResponse>>|Promise<{data: *}>>}
*/
async createPullRequest(mergeRequest: GitLabMergeRequest) {
let canCreate = !this.useIssuesForAllMergeRequests;
if (canCreate) {
// Check to see if the target branch exists in GitHub - if it does not exist, we cannot create a pull request
try {
await this.githubApi.repos.getBranch({
owner: this.githubOwner,
repo: this.githubRepo,
branch: mergeRequest.target_branch,
});
} catch (err) {
let gitlabBranches = await this.gitlabHelper.getAllBranches();
if (gitlabBranches.find(m => m.name === mergeRequest.target_branch)) {
// Need to move that branch over to GitHub!
console.error(
`The '${mergeRequest.target_branch}' branch exists on GitLab but has not been migrated to GitHub. Please migrate the branch before migrating pull request #${mergeRequest.iid}.`
);
return Promise.resolve({ data: null });
} else {
console.error(
`Merge request ${mergeRequest.iid} (target branch '${mergeRequest.target_branch}' does not exist => cannot migrate pull request, creating an issue instead.`
);
canCreate = false;
}