opencode/packages/cli/src/config/config.ts

109 lines
4.3 KiB
TypeScript

export * as Config from "./config"
import { Global } from "@opencode-ai/util/global"
import { Context, Effect, FileSystem, Layer, Option, Schema, Semaphore } from "effect"
import { produce, type Draft } from "immer"
import { applyEdits, modify, parse, type ParseError } from "jsonc-parser"
import path from "path"
import { ConfigMigration } from "./migrate"
import { Info } from "./schema"
export * from "./schema"
export interface Interface {
readonly path: string
readonly get: () => Effect.Effect<Info>
readonly update: (update: (draft: Draft<Info>) => void) => Effect.Effect<Info, Error>
}
export class Service extends Context.Service<Service, Interface>()("@opencode/cli/config/Config") {}
const decode = Schema.decodeUnknownOption(Info)
const decodeRecord = Schema.decodeUnknownOption(Schema.Record(Schema.String, Schema.Any))
const empty: Info = {}
export const layer = Layer.effect(
Service,
Effect.gen(function* () {
const fs = yield* FileSystem.FileSystem
const global = yield* Global.Service
const file = path.join(global.config, "cli.json")
const lock = yield* Semaphore.make(1)
const readJson = Effect.fnUntraced(function* () {
const text = yield* fs.readFileString(file).pipe(Effect.catch(() => Effect.succeed(undefined)))
if (text === undefined) return undefined
const errors: ParseError[] = []
const value: any = parse(text, errors, { allowTrailingComma: true })
if (errors.length) return undefined
return Option.getOrUndefined(decodeRecord(value))
})
const write = Effect.fnUntraced(function* (text: string) {
const temp = file + ".tmp"
yield* fs.makeDirectory(path.dirname(file), { recursive: true })
yield* fs.writeFileString(temp, text, { mode: 0o600 })
yield* fs.rename(temp, file)
})
const migrate = ConfigMigration.run({ file, config: global.config, state: global.state }).pipe(
Effect.provideService(FileSystem.FileSystem, fs),
)
const get = Effect.fn("cli.config.get")(function* () {
yield* migrate.pipe(Effect.catchCause((cause) => Effect.logWarning("failed to migrate cli config", { cause })))
return Option.getOrElse(decode(yield* readJson()), () => empty)
})
const update = Effect.fn("cli.config.update")((update: (draft: Draft<Info>) => void) =>
lock
.withPermits(1)(
Effect.gen(function* () {
yield* migrate
const current = Option.getOrElse(decode(yield* readJson()), () => empty)
const next = produce(current, update)
const edits = changes(current, next)
if (!edits.length) return current
const text = yield* fs.readFileString(file).pipe(Effect.catch(() => Effect.succeed("{}")))
const updated = edits.reduce(
(text, edit) =>
applyEdits(
text,
modify(text, edit.path, edit.value, { formattingOptions: { tabSize: 2, insertSpaces: true } }),
),
text,
)
const errors: ParseError[] = []
const config = Option.getOrUndefined(decode(parse(updated, errors, { allowTrailingComma: true })))
if (errors.length || config === undefined) return yield* Effect.fail(new Error("Invalid CLI config update"))
yield* write(updated.endsWith("\n") ? updated : updated + "\n")
return config
}),
)
.pipe(Effect.mapError((cause) => new Error("Failed to update CLI config", { cause }))),
)
return Service.of({ path: file, get, update })
}),
)
type Edit = { readonly path: (string | number)[]; readonly value: any }
function changes(before: any, after: any, path: (string | number)[] = []): Edit[] {
if (Object.is(before, after)) return []
if (
before !== null &&
after !== null &&
typeof before === "object" &&
typeof after === "object" &&
!Array.isArray(before) &&
!Array.isArray(after)
) {
return [...new Set([...Object.keys(before), ...Object.keys(after)])].flatMap((key) => {
if (!(key in after)) return [{ path: [...path, key], value: undefined }]
if (!(key in before)) return [{ path: [...path, key], value: after[key] }]
return changes(before[key], after[key], [...path, key])
})
}
return [{ path, value: after }]
}