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|
const normalize = (directory: string) => directory.replace(/[\\/]+$/, "")
type State =
| {
status: "pending"
}
| {
status: "ready"
}
| {
status: "failed"
message: string
}
const state = new Map<string, State>()
const waiters = new Map<string, Array<(state: State) => void>>()
export const Worktree = {
get(directory: string) {
return state.get(normalize(directory))
},
pending(directory: string) {
const key = normalize(directory)
const current = state.get(key)
if (current && current.status !== "pending") return
state.set(key, { status: "pending" })
},
ready(directory: string) {
const key = normalize(directory)
state.set(key, { status: "ready" })
const list = waiters.get(key)
if (!list) return
waiters.delete(key)
for (const fn of list) fn({ status: "ready" })
},
failed(directory: string, message: string) {
const key = normalize(directory)
state.set(key, { status: "failed", message })
const list = waiters.get(key)
if (!list) return
waiters.delete(key)
for (const fn of list) fn({ status: "failed", message })
},
wait(directory: string) {
const key = normalize(directory)
const current = state.get(key)
if (current && current.status !== "pending") return Promise.resolve(current)
return new Promise<State>((resolve) => {
const list = waiters.get(key)
if (!list) {
waiters.set(key, [resolve])
return
}
list.push(resolve)
})
},
}
|
