wikijs-fork/server/modules/storage/git/storage.js

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const path = require('path')
const sgit = require('simple-git/promise')
const fs = require('fs-extra')
const _ = require('lodash')
const stream = require('stream')
const Promise = require('bluebird')
const pipeline = Promise.promisify(stream.pipeline)
const klaw = require('klaw')
const os = require('os')
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const pageHelper = require('../../../helpers/page')
const assetHelper = require('../../../helpers/asset')
const commonDisk = require('../disk/common')
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/* global WIKI */
module.exports = {
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git: null,
repoPath: path.resolve(WIKI.ROOTPATH, WIKI.config.dataPath, 'repo'),
async activated() {
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// not used
},
async deactivated() {
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// not used
},
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/**
* INIT
*/
async init() {
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WIKI.logger.info('(STORAGE/GIT) Initializing...')
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this.repoPath = path.resolve(WIKI.ROOTPATH, this.config.localRepoPath)
await fs.ensureDir(this.repoPath)
this.git = sgit(this.repoPath)
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// Set custom binary path
if (!_.isEmpty(this.config.gitBinaryPath)) {
this.git.customBinary(this.config.gitBinaryPath)
}
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// Initialize repo (if needed)
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WIKI.logger.info('(STORAGE/GIT) Checking repository state...')
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const isRepo = await this.git.checkIsRepo()
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if (!isRepo) {
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WIKI.logger.info('(STORAGE/GIT) Initializing local repository...')
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await this.git.init()
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}
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// Set default author
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await this.git.raw(['config', '--local', 'user.email', this.config.defaultEmail])
await this.git.raw(['config', '--local', 'user.name', this.config.defaultName])
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// Purge existing remotes
WIKI.logger.info('(STORAGE/GIT) Listing existing remotes...')
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const remotes = await this.git.getRemotes()
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if (remotes.length > 0) {
WIKI.logger.info('(STORAGE/GIT) Purging existing remotes...')
for (let remote of remotes) {
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await this.git.removeRemote(remote.name)
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}
}
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// Add remote
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WIKI.logger.info('(STORAGE/GIT) Setting SSL Verification config...')
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await this.git.raw(['config', '--local', '--bool', 'http.sslVerify', _.toString(this.config.verifySSL)])
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switch (this.config.authType) {
case 'ssh':
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WIKI.logger.info('(STORAGE/GIT) Setting SSH Command config...')
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if (this.config.sshPrivateKeyMode === 'contents') {
try {
this.config.sshPrivateKeyPath = path.resolve(WIKI.ROOTPATH, WIKI.config.dataPath, 'secure/git-ssh.pem')
await fs.outputFile(this.config.sshPrivateKeyPath, this.config.sshPrivateKeyContent + os.EOL, {
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encoding: 'utf8',
mode: 0o600
})
} catch (err) {
console.error(err)
throw err
}
}
await this.git.addConfig('core.sshCommand', `ssh -i "${this.config.sshPrivateKeyPath}" -o StrictHostKeyChecking=no`)
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WIKI.logger.info('(STORAGE/GIT) Adding origin remote via SSH...')
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await this.git.addRemote('origin', this.config.repoUrl)
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break
default:
WIKI.logger.info('(STORAGE/GIT) Adding origin remote via HTTP/S...')
let originUrl = ''
if (_.startsWith(this.config.repoUrl, 'http')) {
originUrl = this.config.repoUrl.replace('://', `://${encodeURI(this.config.basicUsername)}:${encodeURI(this.config.basicPassword)}@`)
} else {
originUrl = `https://${encodeURI(this.config.basicUsername)}:${encodeURI(this.config.basicPassword)}@${this.config.repoUrl}`
}
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await this.git.addRemote('origin', originUrl)
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break
}
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// Fetch updates for remote
WIKI.logger.info('(STORAGE/GIT) Fetch updates from remote...')
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await this.git.raw(['remote', 'update', 'origin'])
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// Checkout branch
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const branches = await this.git.branch()
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if (!_.includes(branches.all, this.config.branch) && !_.includes(branches.all, `remotes/origin/${this.config.branch}`)) {
throw new Error('Invalid branch! Make sure it exists on the remote first.')
}
WIKI.logger.info(`(STORAGE/GIT) Checking out branch ${this.config.branch}...`)
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await this.git.checkout(this.config.branch)
// Perform initial sync
await this.sync()
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WIKI.logger.info('(STORAGE/GIT) Initialization completed.')
},
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/**
* SYNC
*/
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async sync() {
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const currentCommitLog = _.get(await this.git.log(['-n', '1', this.config.branch]), 'latest', {})
const rootUser = await WIKI.models.users.getRootUser()
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// Pull rebase
if (_.includes(['sync', 'pull'], this.mode)) {
WIKI.logger.info(`(STORAGE/GIT) Performing pull rebase from origin on branch ${this.config.branch}...`)
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await this.git.pull('origin', this.config.branch, ['--rebase'])
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}
// Push
if (_.includes(['sync', 'push'], this.mode)) {
WIKI.logger.info(`(STORAGE/GIT) Performing push to origin on branch ${this.config.branch}...`)
let pushOpts = ['--signed=if-asked']
if (this.mode === 'push') {
pushOpts.push('--force')
}
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await this.git.push('origin', this.config.branch, pushOpts)
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}
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// Process Changes
if (_.includes(['sync', 'pull'], this.mode)) {
const latestCommitLog = _.get(await this.git.log(['-n', '1', this.config.branch]), 'latest', {})
const diff = await this.git.diffSummary(['-M', currentCommitLog.hash, latestCommitLog.hash])
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if (_.get(diff, 'files', []).length > 0) {
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let filesToProcess = []
for (const f of diff.files) {
const fPath = path.join(this.repoPath, f.file)
let fStats = { size: 0 }
try {
fStats = await fs.stat(fPath)
} catch (err) {
if (err.code !== 'ENOENT') {
WIKI.logger.warn(`(STORAGE/GIT) Failed to access file ${f.file}! Skipping...`)
continue
}
}
filesToProcess.push({
...f,
file: {
path: fPath,
stats: fStats
},
relPath: f.file
})
}
await this.processFiles(filesToProcess, rootUser)
}
}
},
/**
* Process Files
*
* @param {Array<String>} files Array of files to process
*/
async processFiles(files, user) {
for (const item of files) {
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const contentType = pageHelper.getContentType(item.relPath)
const fileExists = await fs.pathExists(item.file)
if (!item.binary && contentType) {
// -> Page
if (!fileExists && item.deletions > 0 && item.insertions === 0) {
// Page was deleted by git, can safely mark as deleted in DB
WIKI.logger.info(`(STORAGE/GIT) Page marked as deleted: ${item.relPath}`)
const contentPath = pageHelper.getPagePath(item.relPath)
await WIKI.models.pages.deletePage({
user: user,
path: contentPath.path,
locale: contentPath.locale,
skipStorage: true
})
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continue
}
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try {
await commonDisk.processPage({
user,
relPath: item.relPath,
fullPath: this.repoPath,
contentType: contentType,
moduleName: 'GIT'
})
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} catch (err) {
WIKI.logger.warn(`(STORAGE/GIT) Failed to process ${item.relPath}`)
WIKI.logger.warn(err)
}
} else {
// -> Asset
if (!fileExists && ((item.before > 0 && item.after === 0) || (item.deletions > 0 && item.insertions === 0))) {
// Asset was deleted by git, can safely mark as deleted in DB
WIKI.logger.info(`(STORAGE/GIT) Asset marked as deleted: ${item.relPath}`)
const fileHash = assetHelper.generateHash(item.relPath)
const assetToDelete = await WIKI.models.assets.query().findOne({ hash: fileHash })
if (assetToDelete) {
await WIKI.models.knex('assetData').where('id', assetToDelete.id).del()
await WIKI.models.assets.query().deleteById(assetToDelete.id)
await assetToDelete.deleteAssetCache()
} else {
WIKI.logger.info(`(STORAGE/GIT) Asset was not found in the DB, nothing to delete: ${item.relPath}`)
}
continue
}
try {
await commonDisk.processAsset({
user,
relPath: item.relPath,
file: item.file,
contentType: contentType,
moduleName: 'GIT'
})
} catch (err) {
WIKI.logger.warn(`(STORAGE/GIT) Failed to process asset ${item.relPath}`)
WIKI.logger.warn(err)
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}
}
}
},
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/**
* CREATE
*
* @param {Object} page Page to create
*/
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async created(page) {
WIKI.logger.info(`(STORAGE/GIT) Committing new file [${page.localeCode}] ${page.path}...`)
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let fileName = `${page.path}.${pageHelper.getFileExtension(page.contentType)}`
if (WIKI.config.lang.namespacing && WIKI.config.lang.code !== page.localeCode) {
fileName = `${page.localeCode}/${fileName}`
}
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const filePath = path.join(this.repoPath, fileName)
await fs.outputFile(filePath, page.injectMetadata(), 'utf8')
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await this.git.add(`./${fileName}`)
await this.git.commit(`docs: create ${page.path}`, fileName, {
'--author': `"${page.authorName} <${page.authorEmail}>"`
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})
},
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/**
* UPDATE
*
* @param {Object} page Page to update
*/
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async updated(page) {
WIKI.logger.info(`(STORAGE/GIT) Committing updated file [${page.localeCode}] ${page.path}...`)
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let fileName = `${page.path}.${pageHelper.getFileExtension(page.contentType)}`
if (WIKI.config.lang.namespacing && WIKI.config.lang.code !== page.localeCode) {
fileName = `${page.localeCode}/${fileName}`
}
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const filePath = path.join(this.repoPath, fileName)
await fs.outputFile(filePath, page.injectMetadata(), 'utf8')
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await this.git.add(`./${fileName}`)
await this.git.commit(`docs: update ${page.path}`, fileName, {
'--author': `"${page.authorName} <${page.authorEmail}>"`
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})
},
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/**
* DELETE
*
* @param {Object} page Page to delete
*/
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async deleted(page) {
WIKI.logger.info(`(STORAGE/GIT) Committing removed file [${page.localeCode}] ${page.path}...`)
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let fileName = `${page.path}.${pageHelper.getFileExtension(page.contentType)}`
if (WIKI.config.lang.namespacing && WIKI.config.lang.code !== page.localeCode) {
fileName = `${page.localeCode}/${fileName}`
}
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await this.git.rm(`./${fileName}`)
await this.git.commit(`docs: delete ${page.path}`, fileName, {
'--author': `"${page.authorName} <${page.authorEmail}>"`
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})
},
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/**
* RENAME
*
* @param {Object} page Page to rename
*/
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async renamed(page) {
WIKI.logger.info(`(STORAGE/GIT) Committing file move from [${page.localeCode}] ${page.path} to [${page.destinationLocaleCode}] ${page.destinationPath}...`)
let sourceFileName = `${page.path}.${pageHelper.getFileExtension(page.contentType)}`
let destinationFileName = `${page.destinationPath}.${pageHelper.getFileExtension(page.contentType)}`
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if (WIKI.config.lang.namespacing) {
if (WIKI.config.lang.code !== page.localeCode) {
sourceFileName = `${page.localeCode}/${sourceFileName}`
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}
if (WIKI.config.lang.code !== page.destinationLocaleCode) {
destinationFileName = `${page.destinationLocaleCode}/${destinationFileName}`
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}
}
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const sourceFilePath = path.join(this.repoPath, sourceFileName)
const destinationFilePath = path.join(this.repoPath, destinationFileName)
await fs.move(sourceFilePath, destinationFilePath)
await this.git.rm(`./${sourceFileName}`)
await this.git.add(`./${destinationFileName}`)
await this.git.commit(`docs: rename ${page.path} to ${page.destinationPath}`, [sourceFilePath, destinationFilePath], {
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'--author': `"${page.moveAuthorName} <${page.moveAuthorEmail}>"`
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})
},
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/**
* ASSET UPLOAD
*
* @param {Object} asset Asset to upload
*/
async assetUploaded (asset) {
WIKI.logger.info(`(STORAGE/GIT) Committing new file ${asset.path}...`)
const filePath = path.join(this.repoPath, asset.path)
await fs.outputFile(filePath, asset.data, 'utf8')
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await this.git.add(`./${asset.path}`)
await this.git.commit(`docs: upload ${asset.path}`, asset.path, {
'--author': `"${asset.authorName} <${asset.authorEmail}>"`
})
},
/**
* ASSET DELETE
*
* @param {Object} asset Asset to upload
*/
async assetDeleted (asset) {
WIKI.logger.info(`(STORAGE/GIT) Committing removed file ${asset.path}...`)
await this.git.rm(`./${asset.path}`)
await this.git.commit(`docs: delete ${asset.path}`, asset.path, {
'--author': `"${asset.authorName} <${asset.authorEmail}>"`
})
},
/**
* ASSET RENAME
*
* @param {Object} asset Asset to upload
*/
async assetRenamed (asset) {
WIKI.logger.info(`(STORAGE/GIT) Committing file move from ${asset.path} to ${asset.destinationPath}...`)
await this.git.mv(`./${asset.path}`, `./${asset.destinationPath}`)
await this.git.commit(`docs: rename ${asset.path} to ${asset.destinationPath}`, [asset.path, asset.destinationPath], {
'--author': `"${asset.moveAuthorName} <${asset.moveAuthorEmail}>"`
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})
},
async getLocalLocation (asset) {
return path.join(this.repoPath, asset.path)
},
/**
* HANDLERS
*/
async importAll() {
WIKI.logger.info(`(STORAGE/GIT) Importing all content from local Git repo to the DB...`)
const rootUser = await WIKI.models.users.getRootUser()
await pipeline(
klaw(this.repoPath, {
filter: (f) => {
return !_.includes(f, '.git')
}
}),
new stream.Transform({
objectMode: true,
transform: async (file, enc, cb) => {
const relPath = file.path.substr(this.repoPath.length + 1)
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if (file.stats.size < 1) {
// Skip directories and zero-byte files
return cb()
} else if (relPath && relPath.length > 3) {
WIKI.logger.info(`(STORAGE/GIT) Processing ${relPath}...`)
await this.processFiles([{
user: rootUser,
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relPath,
file,
deletions: 0,
insertions: 0
}], rootUser)
}
cb()
}
})
)
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commonDisk.clearFolderCache()
WIKI.logger.info('(STORAGE/GIT) Import completed.')
},
async syncUntracked() {
WIKI.logger.info(`(STORAGE/GIT) Adding all untracked content...`)
// -> Pages
await pipeline(
WIKI.models.knex.column('path', 'localeCode', 'title', 'description', 'contentType', 'content', 'isPublished', 'updatedAt').select().from('pages').where({
isPrivate: false
}).stream(),
new stream.Transform({
objectMode: true,
transform: async (page, enc, cb) => {
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let fileName = `${page.path}.${pageHelper.getFileExtension(page.contentType)}`
if (WIKI.config.lang.namespacing && WIKI.config.lang.code !== page.localeCode) {
fileName = `${page.localeCode}/${fileName}`
}
WIKI.logger.info(`(STORAGE/GIT) Adding page ${fileName}...`)
const filePath = path.join(this.repoPath, fileName)
await fs.outputFile(filePath, pageHelper.injectPageMetadata(page), 'utf8')
await this.git.add(`./${fileName}`)
cb()
}
})
)
// -> Assets
const assetFolders = await WIKI.models.assetFolders.getAllPaths()
await pipeline(
WIKI.models.knex.column('filename', 'folderId', 'data').select().from('assets').join('assetData', 'assets.id', '=', 'assetData.id').stream(),
new stream.Transform({
objectMode: true,
transform: async (asset, enc, cb) => {
const filename = (asset.folderId && asset.folderId > 0) ? `${_.get(assetFolders, asset.folderId)}/${asset.filename}` : asset.filename
WIKI.logger.info(`(STORAGE/GIT) Adding asset ${filename}...`)
await fs.outputFile(path.join(this.repoPath, filename), asset.data)
await this.git.add(`./${filename}`)
cb()
}
})
)
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await this.git.commit(`docs: add all untracked content`)
WIKI.logger.info('(STORAGE/GIT) All content is now tracked.')
},
async purge() {
WIKI.logger.info(`(STORAGE/GIT) Purging local repository...`)
await fs.emptyDir(this.repoPath)
WIKI.logger.info('(STORAGE/GIT) Local repository is now empty. Reinitializing...')
await this.init()
}
}