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Build the ouisync ffi as part of the package on MacOS
Also remove automatic loading of the dylib library from Flutter. It'll only be loaded when session is created using the `Session.create` function but not when created with the `Session.createChanneled` function).
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bindings/swift/OuisyncLib/Plugins/OuisyncDyLibBuilder/OuisyncDyLibBuilder.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| // | ||
| // File.swift | ||
| // | ||
| // | ||
| // Created by Peter Jankuliak on 26/07/2024. | ||
| // | ||
|
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| // A package plugin which builds the libouisync_ffi.dylib library and includes it in the package. | ||
| // https://github.com/swiftlang/swift-package-manager/blob/main/Documentation/Plugins.md | ||
| // | ||
| // TODO: Right now it creates only Debug version of the library and only for the current architecture. | ||
| // Can we detect the build type and architecture here? This github ticket seems to indicate it's not | ||
| // currently possible: | ||
| // https://github.com/swiftlang/swift-package-manager/issues/7110 | ||
|
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| import Foundation | ||
| import PackagePlugin | ||
|
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| @main | ||
| struct OuisyncDyLibBuilder: BuildToolPlugin { | ||
| func createBuildCommands(context: PackagePlugin.PluginContext, target: PackagePlugin.Target) async throws -> [PackagePlugin.Command] { | ||
| let workDir = context.pluginWorkDirectory | ||
| let dylibName = "libouisync_ffi.dylib" | ||
| let dylibPath = workDir.appending("debug").appending(dylibName) | ||
| let cargoPath = shell("which cargo").trimmingCharacters(in: .whitespacesAndNewlines) | ||
| let inputFiles = findInputFiles() | ||
|
|
||
| return [ | ||
| .buildCommand( | ||
| displayName: "Build Ouisync FFI .dylib", | ||
| executable: Path(cargoPath), | ||
| arguments: ["build", "-p", "ouisync-ffi", "--target-dir", workDir], | ||
| environment: [:], | ||
| inputFiles: inputFiles.map { Path($0) }, | ||
| outputFiles: [ dylibPath ]) | ||
| ] | ||
| } | ||
| } | ||
|
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| // This finds files which when changed, the Swift builder will re-execute the build above build command. | ||
| // The implementation is not very good because if a new directory/module is added on which this package | ||
| // depends, the package builder won't rebuild the ffi library. | ||
| // TODO: use `cargo build --build-plan` once it's in stable. | ||
| func findInputFiles() -> [String] { | ||
| var files = [String]() | ||
| let startAts = [ | ||
| URL(string: "../../../bridge")!, | ||
| URL(string: "../../../deadlock")!, | ||
| URL(string: "../../../ffi")!, | ||
| URL(string: "../../../lib")!, | ||
| URL(string: "../../../net")!, | ||
| URL(string: "../../../rand")!, | ||
| URL(string: "../../../scoped_task")!, | ||
| URL(string: "../../../state_monitor")!, | ||
| URL(string: "../../../tracing_fmt")!, | ||
| URL(string: "../../../utils")!, | ||
| URL(string: "../../../vfs")!, | ||
| ] | ||
| for startAt in startAts { | ||
| if let enumerator = FileManager.default.enumerator(at: startAt, includingPropertiesForKeys: [.isRegularFileKey], options: [.skipsHiddenFiles, .skipsPackageDescendants]) { | ||
| for case let fileURL as URL in enumerator { | ||
| do { | ||
| let fileAttributes = try fileURL.resourceValues(forKeys:[.isRegularFileKey]) | ||
| if fileAttributes.isRegularFile! { | ||
| files.append(fileURL.path) | ||
| } | ||
| } catch { fatalError("Error finding input files: \(error), \(fileURL)") } | ||
| } | ||
| } | ||
| } | ||
| return files | ||
| } | ||
|
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| func shell(_ command: String) -> String { | ||
| let task = Process() | ||
| let pipe = Pipe() | ||
|
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| task.standardOutput = pipe | ||
| task.standardError = pipe | ||
| task.arguments = ["-c", command] | ||
| task.launchPath = "/bin/zsh" | ||
| task.standardInput = nil | ||
| task.launch() | ||
|
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| let data = pipe.fileHandleForReading.readDataToEndOfFile() | ||
| let output = String(data: data, encoding: .utf8)! | ||
|
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| return output | ||
| } |
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