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https://github.com/apple/container.git
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Kathryn Baldauf
16f2630126
We're working on making a pure swift container image build system that leverages containerization. This PR represents our initial design and initial work towards this goal. The native builder is still in active development and most of the implementation has not been started or completed. We will be opening a series of issues that represent various (but not necessarily all) pieces of work that need to be done here. There are docs included in this PR that describe the overall design of each component and outline some of our goals. The easiest way to view the docs by themselves (since this is a massive PR) is to look at the docs commit in the `Commits` tab. We'd love any feedback! @wlan0 --------- Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
47 lines
1.7 KiB
Swift
47 lines
1.7 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025 Apple Inc. and the container project authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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import Foundation
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/// Central event hub for build progress reporting.
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///
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/// Design rationale:
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/// - Actor-based for thread safety without manual locking
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/// - AsyncStream for real-time event consumption
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/// - Bounded buffer to prevent unbounded memory growth
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/// - Single source of truth for all build events
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public actor Reporter {
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private let continuation: AsyncStream<BuildEvent>.Continuation
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public nonisolated let stream: AsyncStream<BuildEvent>
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/// Initialize with a buffer size for the event stream
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public init(bufferSize: Int = 100) {
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(self.stream, self.continuation) = AsyncStream.makeStream(
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bufferingPolicy: .bufferingNewest(bufferSize)
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)
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}
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/// Report a new event
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public func report(_ event: BuildEvent) {
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continuation.yield(event)
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}
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/// Finish the event stream (no more events will be reported)
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public func finish() {
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continuation.finish()
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}
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}
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