chore: import upstream snapshot with attribution

2026-07-13 12:22:33 +08:00
commit fc4fcbab58
1848 changed files with 472303 additions and 0 deletions
@@ -0,0 +1,72 @@
+#if canImport(Glibc) || canImport(Musl)
+import Foundation
+#if canImport(Glibc)
+import Glibc
+#elseif canImport(Musl)
+import Musl
+#endif
+import Testing
+@testable import CodexBarCore
+
+struct AntigravityProcessLauncherLinuxTests {
+    @Test
+    func `pty launcher uses home and closes unrelated descriptors`() throws {
+        let tempDirectory = FileManager.default.temporaryDirectory
+            .appendingPathComponent("antigravity-spawn-\(UUID().uuidString)", isDirectory: true)
+        try FileManager.default.createDirectory(at: tempDirectory, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: tempDirectory) }
+
+        let inheritedSourceFD = open("/dev/null", O_RDONLY)
+        guard inheritedSourceFD >= 0 else {
+            Issue.record("Failed to open descriptor fixture")
+            return
+        }
+        defer { close(inheritedSourceFD) }
+        let inheritedFD = fcntl(inheritedSourceFD, F_DUPFD, 200)
+        guard inheritedFD >= 200 else {
+            Issue.record("Failed to duplicate descriptor fixture")
+            return
+        }
+        defer { close(inheritedFD) }
+
+        let outputURL = tempDirectory.appendingPathComponent("result.txt")
+        let scriptURL = tempDirectory.appendingPathComponent("probe.sh")
+        let script = """
+        #!/bin/sh
+        pwd > \(outputURL.path)
+        if [ -e /proc/self/fd/\(inheritedFD) ]; then
+          echo inherited >> \(outputURL.path)
+        else
+          echo closed >> \(outputURL.path)
+        fi
+        """
+        // Direct writes close the executable before spawn; atomic replacement can race with exec on overlay
+        // filesystems.
+        try Data(script.utf8).write(to: scriptURL)
+        #expect(chmod(scriptURL.path, 0o700) == 0)
+
+        let handle = try AntigravityPTYProcessLauncher().launch(binary: scriptURL.path)
+        defer {
+            handle.killRoot()
+            handle.terminateTree(signal: SIGKILL, knownDescendants: [])
+            handle.closePTY()
+        }
+
+        for _ in 0..<200 {
+            if FileManager.default.fileExists(atPath: outputURL.path),
+               let output = try? String(contentsOf: outputURL, encoding: .utf8)
+            {
+                let lines = output
+                    .split(separator: "\n")
+                    .map(String.init)
+                if lines.count >= 2, output.hasSuffix("\n") { break }
+            }
+            Thread.sleep(forTimeInterval: 0.01)
+        }
+        let lines = try String(contentsOf: outputURL, encoding: .utf8)
+            .split(separator: "\n")
+            .map(String.init)
+        #expect(lines == [NSHomeDirectory(), "closed"])
+    }
+}
+#endif