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import {
S3Client,
PutObjectCommand,
GetObjectCommand,
DeleteObjectCommand,
ListObjectsV2Command,
} from "@aws-sdk/client-s3"
import { lazy } from "@opencode-ai/util/lazy"
export namespace Storage {
export interface Adapter {
read(path: string): Promise<string | undefined>
write(path: string, value: string): Promise<void>
remove(path: string): Promise<void>
list(prefix: string): Promise<string[]>
}
function createAdapter(client: S3Client, bucket: string): Adapter {
return {
async read(path: string): Promise<string | undefined> {
try {
console.log("reading", bucket, path)
const command = new GetObjectCommand({
Bucket: bucket,
Key: path,
})
const response = await client.send(command)
if (!response.Body) return undefined
return response.Body.transformToString()
} catch (e: any) {
if (e.name === "NoSuchKey") return undefined
throw e
}
},
async write(path: string, value: string): Promise<void> {
const command = new PutObjectCommand({
Bucket: bucket,
Key: path,
Body: value,
ContentType: "application/json",
})
await client.send(command)
},
async remove(path: string): Promise<void> {
const command = new DeleteObjectCommand({
Bucket: bucket,
Key: path,
})
await client.send(command)
},
async list(prefix: string): Promise<string[]> {
const command = new ListObjectsV2Command({
Bucket: bucket,
Prefix: prefix,
})
const response = await client.send(command)
return response.Contents?.map((c) => c.Key!) || []
},
}
}
function s3(): Adapter {
const bucket = process.env.OPENCODE_STORAGE_BUCKET!
const client = new S3Client({
region: process.env.OPENCODE_STORAGE_REGION,
credentials: process.env.OPENCODE_STORAGE_ACCESS_KEY_ID
? {
accessKeyId: process.env.OPENCODE_STORAGE_ACCESS_KEY_ID!,
secretAccessKey: process.env.OPENCODE_STORAGE_SECRET_ACCESS_KEY!,
}
: undefined,
})
return createAdapter(client, bucket)
}
function r2() {
const accountId = process.env.OPENCODE_STORAGE_ACCOUNT_ID!
const accessKeyId = process.env.OPENCODE_STORAGE_ACCESS_KEY_ID!
const secretAccessKey = process.env.OPENCODE_STORAGE_SECRET_ACCESS_KEY!
const bucket = process.env.OPENCODE_STORAGE_BUCKET!
const client = new S3Client({
region: "auto",
endpoint: `https://${accountId}.r2.cloudflarestorage.com`,
credentials: {
accessKeyId,
secretAccessKey,
},
})
return createAdapter(client, bucket)
}
const adapter = lazy(() => {
const type = process.env.OPENCODE_STORAGE_ADAPTER
if (type === "r2") return r2()
if (type === "s3") return s3()
throw new Error("No storage adapter configured")
})
function resolve(key: string[]) {
return key.join("/") + ".json"
}
export async function read<T>(key: string[]) {
const result = await adapter().read(resolve(key))
if (!result) return undefined
return JSON.parse(result) as T
}
export function write<T>(key: string[], value: T) {
return adapter().write(resolve(key), JSON.stringify(value))
}
export function remove(key: string[]) {
return adapter().remove(resolve(key))
}
export async function list(prefix: string[]) {
const p = prefix.join("/") + (prefix.length ? "/" : "")
const result = await adapter().list(p)
return result.map((x) => x.replace(/\.json$/, "").split("/"))
}
export async function update<T>(key: string[], fn: (draft: T) => void) {
const val = await read<T>(key)
if (!val) throw new Error("Not found")
fn(val)
await write(key, val)
return val
}
}
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