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create a dedicated class for listening the registration of podman pro…
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| /********************************************************************** | ||
| * Copyright (C) 2024 Red Hat, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| ***********************************************************************/ | ||
|
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| import { type ContainerProviderConnection, type RegisterContainerConnectionEvent, provider } from '@podman-desktop/api'; | ||
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| type startupHandle = () => void; | ||
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| export class PodmanConnection { | ||
| #firstFound = false; | ||
| #connection: ContainerProviderConnection | undefined = undefined; | ||
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| #toExecuteAtStartup: startupHandle[] = []; | ||
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| init(): void { | ||
| // In case the extension has not yet registered, we listen for new registrations | ||
| // and retain the first started podman provider | ||
| const disposable = provider.onDidRegisterContainerConnection((e: RegisterContainerConnectionEvent) => { | ||
| if (e.connection.type !== 'podman' || e.connection.status() !== 'started') { | ||
| return; | ||
| } | ||
| if (this.#firstFound) { | ||
| return; | ||
| } | ||
| this.#firstFound = true; | ||
| this.#connection = e.connection; | ||
| for (const f of this.#toExecuteAtStartup) { | ||
| f(); | ||
| } | ||
| this.#toExecuteAtStartup = []; | ||
| disposable.dispose(); | ||
| }); | ||
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| // In case at least one extension has already registered, we get one started podman provider | ||
| const engines = provider | ||
| .getContainerConnections() | ||
| .filter(connection => connection.connection.type === 'podman') | ||
| .filter(connection => connection.connection.status() === 'started'); | ||
| if (engines.length > 0) { | ||
| disposable.dispose(); | ||
| this.#firstFound = true; | ||
| this.#connection = engines[0].connection; | ||
| } | ||
| } | ||
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| // startupSubscribe registers f to be executed when a podman container provider | ||
| // registers, or immediately if already registered | ||
| startupSubscribe(f: startupHandle): void { | ||
| if (this.#firstFound) { | ||
| f(); | ||
| } else { | ||
| this.#toExecuteAtStartup.push(f); | ||
| } | ||
| } | ||
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| getConnection(): ContainerProviderConnection | undefined { | ||
| return this.#connection; | ||
| } | ||
| } |
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