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const { Storage } = require("@google-cloud/storage")
const PubSub = require("@google-cloud/pubsub")
const JSZip = require("jszip")
const storage = new Storage()
// const projectId = process.env.GCP_PROJECT || process.env.GCLOUD_PROJECT
const artifactBucketName = "gs://slam-lang-gh-artifacts"
const uiDeployBucketName = "gs://slam-lang-ui"
const pubsub = new PubSub();
const resultTopicName = "deploy-ui-gcs-result"
/**
* Triggered from a message on a Cloud Pub/Sub topic.
*
* @param {!Object} event Event payload.
* @param {!Object} context Metadata for the event.
*/
exports.deployPubSub = async (event, context) => {
console.log("Received event:", event)
const json = JSON.parse(Buffer.from(event.data, "base64").toString("utf8"))
const revision = json.revision
console.log("Parsed revision from event:", revision)
const resultPublisher = pubsub.topic(resultTopicName).publisher()
try {
const archiveName = `ui-${revision}.zip`
const artifactBucket = storage.bucket(artifactBucketName)
const archiveFile = artifactBucket.file(archiveName)
console.log("Downloading zip archive", archiveName)
const zipData = await archiveFile.download()
if (zipData.length !== 1) {
throw new Error("zipData.length !== 1")
}
const zipContent = await JSZip.loadAsync(zipData[0])
const zippedPaths = Object.keys(zipContent.files)
console.log("Zipped content to deploy:", zippedPaths)
const uiDeployBucket = storage.bucket(uiDeployBucketName)
const prevFiles = await uiDeployBucket.getFiles()
if (prevFiles.length !== 1) {
throw new Error("prevFiles.length !== 1")
}
const prevFilePaths = prevFiles[0].map(f => f.name)
console.log("Existing files:", prevFilePaths)
const newFilePaths = []
zippedPaths.forEach(filePath => {
const zipFile = zipContent.files[filePath]
if (zipFile.dir) return
const deployFilePath = filePath.replace(/^dist\//, "")
newFilePaths.push(deployFilePath)
const newBucketFile = uiDeployBucket.file(deployFilePath)
const nodeStream = zipFile.nodeStream()
nodeStream.pipe(
newBucketFile.createWriteStream({
resumable: false,
validation: false,
contentType: "auto",
metadata: {
"Cache-Control": "no-store",
},
})
)
})
console.log("Deployed new files:", newFilePaths)
const filePathsToDelete = prevFilePaths
.filter(prevFilePath => !newFilePaths.includes(prevFilePath))
console.log("Obsolete files to delete:", filePathsToDelete)
await Promise.all(
filePathsToDelete.map(filePath =>
uiDeployBucket.file(filePath).delete()
)
)
console.log("Done!");
await resultPublisher.publish(Buffer.from(JSON.stringify({
revision,
ok: true
})))
} catch (err) {
console.error(err)
await resultPublisher.publish(Buffer.from(JSON.stringify({
revision,
ok: false
})))
throw err
}
};
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