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create-or-update-comment.ts
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create-or-update-comment.ts
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import * as core from '@actions/core'
import * as github from '@actions/github'
import * as utils from './utils'
import {inspect} from 'util'
export interface Inputs {
token: string
repository: string
issueNumber: number
commentId: number
body: string
bodyPath: string
editMode: string
appendSeparator: string
reactions: string[]
reactionsEditMode: string
}
const REACTION_TYPES = [
'+1',
'-1',
'laugh',
'confused',
'heart',
'hooray',
'rocket',
'eyes'
]
function getReactionsSet(reactions: string[]): string[] {
const reactionsSet = [
...new Set(
reactions.filter(item => {
if (!REACTION_TYPES.includes(item)) {
core.warning(`Skipping invalid reaction '${item}'.`)
return false
}
return true
})
)
]
if (!reactionsSet) {
throw new Error(`No valid reactions are contained in '${reactions}'.`)
}
return reactionsSet
}
async function addReactions(
octokit,
owner: string,
repo: string,
commentId: number,
reactions: string[]
) {
const results = await Promise.allSettled(
reactions.map(async reaction => {
await octokit.rest.reactions.createForIssueComment({
owner: owner,
repo: repo,
comment_id: commentId,
content: reaction
})
core.info(`Setting '${reaction}' reaction on comment.`)
})
)
for (let i = 0, l = results.length; i < l; i++) {
if (results[i].status === 'fulfilled') {
core.info(
`Added reaction '${reactions[i]}' to comment id '${commentId}'.`
)
} else if (results[i].status === 'rejected') {
core.warning(
`Adding reaction '${reactions[i]}' to comment id '${commentId}' failed.`
)
}
}
}
async function removeReactions(
octokit,
owner: string,
repo: string,
commentId: number,
reactions: Reaction[]
) {
const results = await Promise.allSettled(
reactions.map(async reaction => {
await octokit.rest.reactions.deleteForIssueComment({
owner: owner,
repo: repo,
comment_id: commentId,
reaction_id: reaction.id
})
core.info(`Removing '${reaction.content}' reaction from comment.`)
})
)
for (let i = 0, l = results.length; i < l; i++) {
if (results[i].status === 'fulfilled') {
core.info(
`Removed reaction '${reactions[i].content}' from comment id '${commentId}'.`
)
} else if (results[i].status === 'rejected') {
core.warning(
`Removing reaction '${reactions[i].content}' from comment id '${commentId}' failed.`
)
}
}
}
function appendSeparatorTo(body: string, separator: string): string {
switch (separator) {
case 'newline':
return body + '\n'
case 'space':
return body + ' '
default: // none
return body
}
}
function truncateBody(body: string) {
// 65536 characters is the maximum allowed for issue comments.
const truncateWarning = '...*[Comment body truncated]*'
if (body.length > 65536) {
core.warning(`Comment body is too long. Truncating to 65536 characters.`)
return body.substring(0, 65536 - truncateWarning.length) + truncateWarning
}
return body
}
async function createComment(
octokit,
owner: string,
repo: string,
issueNumber: number,
body: string
): Promise<number> {
body = truncateBody(body)
const {data: comment} = await octokit.rest.issues.createComment({
owner: owner,
repo: repo,
issue_number: issueNumber,
body
})
core.info(`Created comment id '${comment.id}' on issue '${issueNumber}'.`)
return comment.id
}
async function updateComment(
octokit,
owner: string,
repo: string,
commentId: number,
body: string,
editMode: string,
appendSeparator: string
): Promise<number> {
if (body) {
let commentBody = ''
if (editMode == 'append') {
// Get the comment body
const {data: comment} = await octokit.rest.issues.getComment({
owner: owner,
repo: repo,
comment_id: commentId
})
commentBody = appendSeparatorTo(
comment.body ? comment.body : '',
appendSeparator
)
}
commentBody = truncateBody(commentBody + body)
core.debug(`Comment body: ${commentBody}`)
await octokit.rest.issues.updateComment({
owner: owner,
repo: repo,
comment_id: commentId,
body: commentBody
})
core.info(`Updated comment id '${commentId}'.`)
}
return commentId
}
async function getAuthenticatedUser(octokit): Promise<string> {
try {
const {data: user} = await octokit.rest.users.getAuthenticated()
return user.login
} catch (error) {
if (
utils
.getErrorMessage(error)
.includes('Resource not accessible by integration')
) {
// In this case we can assume the token is the default GITHUB_TOKEN and
// therefore the user is 'github-actions[bot]'.
return 'github-actions[bot]'
} else {
throw error
}
}
}
type Reaction = {
id: number
content: string
}
async function getCommentReactionsForUser(
octokit,
owner: string,
repo: string,
commentId: number,
user: string
): Promise<Reaction[]> {
const userReactions: Reaction[] = []
for await (const {data: reactions} of octokit.paginate.iterator(
octokit.rest.reactions.listForIssueComment,
{
owner,
repo,
comment_id: commentId,
per_page: 100
}
)) {
const filteredReactions: Reaction[] = reactions
.filter(reaction => reaction.user.login === user)
.map(reaction => {
return {id: reaction.id, content: reaction.content}
})
userReactions.push(...filteredReactions)
}
return userReactions
}
export async function createOrUpdateComment(
inputs: Inputs,
body: string
): Promise<void> {
const [owner, repo] = inputs.repository.split('/')
const octokit = github.getOctokit(inputs.token)
const commentId = inputs.commentId
? await updateComment(
octokit,
owner,
repo,
inputs.commentId,
body,
inputs.editMode,
inputs.appendSeparator
)
: await createComment(octokit, owner, repo, inputs.issueNumber, body)
core.setOutput('comment-id', commentId)
if (inputs.reactions) {
const reactionsSet = getReactionsSet(inputs.reactions)
// Remove reactions if reactionsEditMode is 'replace'
if (inputs.commentId && inputs.reactionsEditMode === 'replace') {
const authenticatedUser = await getAuthenticatedUser(octokit)
const userReactions = await getCommentReactionsForUser(
octokit,
owner,
repo,
commentId,
authenticatedUser
)
core.debug(inspect(userReactions))
const reactionsToRemove = userReactions.filter(
reaction => !reactionsSet.includes(reaction.content)
)
await removeReactions(octokit, owner, repo, commentId, reactionsToRemove)
}
await addReactions(octokit, owner, repo, commentId, reactionsSet)
}
}