create-pull-request/src/create-pull-request.ts

230 lines
7.6 KiB
TypeScript

import * as core from '@actions/core'
import {
createOrUpdateBranch,
getWorkingBaseAndType,
WorkingBaseType
} from './create-or-update-branch'
import {GitHubHelper} from './github-helper'
import {GitCommandManager} from './git-command-manager'
import {GitAuthHelper} from './git-auth-helper'
import * as utils from './utils'
export interface Inputs {
token: string
path: string
commitMessage: string
committer: string
author: string
signoff: boolean
branch: string
deleteBranch: boolean
branchSuffix: string
base: string
pushToFork: string
title: string
body: string
labels: string[]
assignees: string[]
reviewers: string[]
teamReviewers: string[]
milestone: number
draft: boolean
}
export async function createPullRequest(inputs: Inputs): Promise<void> {
let gitAuthHelper
try {
// Get the repository path
const repoPath = utils.getRepoPath(inputs.path)
// Create a git command manager
const git = await GitCommandManager.create(repoPath)
// Save and unset the extraheader auth config if it exists
core.startGroup('Save persisted git credentials')
gitAuthHelper = new GitAuthHelper(git)
await gitAuthHelper.savePersistedAuth()
core.endGroup()
// Init the GitHub client
const githubHelper = new GitHubHelper(inputs.token)
core.startGroup('Determining the base and head repositories')
// Determine the base repository from git config
const remoteUrl = await git.tryGetRemoteUrl()
const baseRemote = utils.getRemoteDetail(remoteUrl)
// Determine the head repository; the target for the pull request branch
const branchRemoteName = inputs.pushToFork ? 'fork' : 'origin'
const branchRepository = inputs.pushToFork
? inputs.pushToFork
: baseRemote.repository
if (inputs.pushToFork) {
// Check if the supplied fork is really a fork of the base
const parentRepository = await githubHelper.getRepositoryParent(
branchRepository
)
if (parentRepository != baseRemote.repository) {
throw new Error(
`Repository '${branchRepository}' is not a fork of '${baseRemote.repository}'. Unable to continue.`
)
}
// Add a remote for the fork
const remoteUrl = utils.getRemoteUrl(
baseRemote.protocol,
branchRepository
)
await git.exec(['remote', 'add', 'fork', remoteUrl])
}
core.endGroup()
core.info(
`Pull request branch target repository set to ${branchRepository}`
)
// Configure auth
if (baseRemote.protocol == 'HTTPS') {
core.startGroup('Configuring credential for HTTPS authentication')
await gitAuthHelper.configureToken(inputs.token)
core.endGroup()
}
core.startGroup('Checking the base repository state')
const [workingBase, workingBaseType] = await getWorkingBaseAndType(git)
core.info(`Working base is ${workingBaseType} '${workingBase}'`)
// When in detached HEAD state (checked out on a commit), we need to
// know the 'base' branch in order to rebase changes.
if (workingBaseType == WorkingBaseType.Commit && !inputs.base) {
throw new Error(
`When the repository is checked out on a commit instead of a branch, the 'base' input must be supplied.`
)
}
// If the base is not specified it is assumed to be the working base.
const base = inputs.base ? inputs.base : workingBase
// Throw an error if the base and branch are not different branches
// of the 'origin' remote. An identically named branch in the `fork`
// remote is perfectly fine.
if (branchRemoteName == 'origin' && base == inputs.branch) {
throw new Error(
`The 'base' and 'branch' for a pull request must be different branches. Unable to continue.`
)
}
// For self-hosted runners the repository state persists between runs.
// This command prunes the stale remote ref when the pull request branch was
// deleted after being merged or closed. Without this the push using
// '--force-with-lease' fails due to "stale info."
// https://github.com/peter-evans/create-pull-request/issues/633
await git.exec(['remote', 'prune', branchRemoteName])
core.endGroup()
// Apply the branch suffix if set
if (inputs.branchSuffix) {
switch (inputs.branchSuffix) {
case 'short-commit-hash':
// Suffix with the short SHA1 hash
inputs.branch = `${inputs.branch}-${await git.revParse('HEAD', [
'--short'
])}`
break
case 'timestamp':
// Suffix with the current timestamp
inputs.branch = `${inputs.branch}-${utils.secondsSinceEpoch()}`
break
case 'random':
// Suffix with a 7 character random string
inputs.branch = `${inputs.branch}-${utils.randomString()}`
break
default:
throw new Error(
`Branch suffix '${inputs.branchSuffix}' is not a valid value. Unable to continue.`
)
}
}
// Output head branch
core.info(
`Pull request branch to create or update set to '${inputs.branch}'`
)
// Configure the committer and author
core.startGroup('Configuring the committer and author')
const parsedAuthor = utils.parseDisplayNameEmail(inputs.author)
const parsedCommitter = utils.parseDisplayNameEmail(inputs.committer)
git.setIdentityGitOptions([
'-c',
`author.name=${parsedAuthor.name}`,
'-c',
`author.email=${parsedAuthor.email}`,
'-c',
`committer.name=${parsedCommitter.name}`,
'-c',
`committer.email=${parsedCommitter.email}`
])
core.info(
`Configured git committer as '${parsedCommitter.name} <${parsedCommitter.email}>'`
)
core.info(
`Configured git author as '${parsedAuthor.name} <${parsedAuthor.email}>'`
)
core.endGroup()
// Create or update the pull request branch
core.startGroup('Create or update the pull request branch')
const result = await createOrUpdateBranch(
git,
inputs.commitMessage,
inputs.base,
inputs.branch,
branchRemoteName,
inputs.signoff
)
core.endGroup()
if (['created', 'updated'].includes(result.action)) {
// The branch was created or updated
core.startGroup(
`Pushing pull request branch to '${branchRemoteName}/${inputs.branch}'`
)
await git.push([
'--force-with-lease',
branchRemoteName,
`HEAD:refs/heads/${inputs.branch}`
])
core.endGroup()
}
// Set the base. It would have been '' if not specified as an input
inputs.base = result.base
if (result.hasDiffWithBase) {
// Create or update the pull request
await githubHelper.createOrUpdatePullRequest(
inputs,
baseRemote.repository,
branchRepository
)
} else {
// There is no longer a diff with the base
// Check we are in a state where a branch exists
if (['updated', 'not-updated'].includes(result.action)) {
core.info(
`Branch '${inputs.branch}' no longer differs from base branch '${inputs.base}'`
)
if (inputs.deleteBranch) {
core.info(`Deleting branch '${inputs.branch}'`)
await git.push([
'--delete',
'--force',
branchRemoteName,
`refs/heads/${inputs.branch}`
])
}
}
}
} catch (error) {
core.setFailed(error.message)
} finally {
// Remove auth and restore persisted auth config if it existed
core.startGroup('Restore persisted git credentials')
await gitAuthHelper.removeAuth()
await gitAuthHelper.restorePersistedAuth()
core.endGroup()
}
}