refactor: unify exec wrapper resolution and parity fixtures

apps/macos/Sources/OpenClaw/ExecShellWrapperParser.swift

@@ -0,0 +1,106 @@
+import Foundation
+
+enum ExecShellWrapperParser {
+    struct ParsedShellWrapper {
+        let isWrapper: Bool
+        let command: String?
+
+        static let notWrapper = ParsedShellWrapper(isWrapper: false, command: nil)
+    }
+
+    private enum Kind {
+        case posix
+        case cmd
+        case powershell
+    }
+
+    private struct WrapperSpec {
+        let kind: Kind
+        let names: Set<String>
+    }
+
+    private static let posixInlineFlags = Set(["-lc", "-c", "--command"])
+    private static let powershellInlineFlags = Set(["-c", "-command", "--command"])
+
+    private static let wrapperSpecs: [WrapperSpec] = [
+        WrapperSpec(kind: .posix, names: ["ash", "sh", "bash", "zsh", "dash", "ksh", "fish"]),
+        WrapperSpec(kind: .cmd, names: ["cmd.exe", "cmd"]),
+        WrapperSpec(kind: .powershell, names: ["powershell", "powershell.exe", "pwsh", "pwsh.exe"]),
+    ]
+
+    static func extract(command: [String], rawCommand: String?) -> ParsedShellWrapper {
+        let trimmedRaw = rawCommand?.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
+        let preferredRaw = trimmedRaw.isEmpty ? nil : trimmedRaw
+        return self.extract(command: command, preferredRaw: preferredRaw, depth: 0)
+    }
+
+    private static func extract(command: [String], preferredRaw: String?, depth: Int) -> ParsedShellWrapper {
+        guard depth < ExecEnvInvocationUnwrapper.maxWrapperDepth else {
+            return .notWrapper
+        }
+        guard let token0 = command.first?.trimmingCharacters(in: .whitespacesAndNewlines), !token0.isEmpty else {
+            return .notWrapper
+        }
+
+        let base0 = ExecCommandToken.basenameLower(token0)
+        if base0 == "env" {
+            guard let unwrapped = ExecEnvInvocationUnwrapper.unwrap(command) else {
+                return .notWrapper
+            }
+            return self.extract(command: unwrapped, preferredRaw: preferredRaw, depth: depth + 1)
+        }
+
+        guard let spec = self.wrapperSpecs.first(where: { $0.names.contains(base0) }) else {
+            return .notWrapper
+        }
+        guard let payload = self.extractPayload(command: command, spec: spec) else {
+            return .notWrapper
+        }
+        let normalized = preferredRaw ?? payload
+        return ParsedShellWrapper(isWrapper: true, command: normalized)
+    }
+
+    private static func extractPayload(command: [String], spec: WrapperSpec) -> String? {
+        switch spec.kind {
+        case .posix:
+            return self.extractPosixInlineCommand(command)
+        case .cmd:
+            return self.extractCmdInlineCommand(command)
+        case .powershell:
+            return self.extractPowerShellInlineCommand(command)
+        }
+    }
+
+    private static func extractPosixInlineCommand(_ command: [String]) -> String? {
+        let flag = command.count > 1 ? command[1].trimmingCharacters(in: .whitespacesAndNewlines) : ""
+        guard self.posixInlineFlags.contains(flag.lowercased()) else {
+            return nil
+        }
+        let payload = command.count > 2 ? command[2].trimmingCharacters(in: .whitespacesAndNewlines) : ""
+        return payload.isEmpty ? nil : payload
+    }
+
+    private static func extractCmdInlineCommand(_ command: [String]) -> String? {
+        guard let idx = command.firstIndex(where: { $0.trimmingCharacters(in: .whitespacesAndNewlines).lowercased() == "/c" }) else {
+            return nil
+        }
+        let tail = command.suffix(from: command.index(after: idx)).joined(separator: " ")
+        let payload = tail.trimmingCharacters(in: .whitespacesAndNewlines)
+        return payload.isEmpty ? nil : payload
+    }
+
+    private static func extractPowerShellInlineCommand(_ command: [String]) -> String? {
+        for idx in 1..<command.count {
+            let token = command[idx].trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
+            if token.isEmpty { continue }
+            if token == "--" { break }
+            if self.powershellInlineFlags.contains(token) {
+                let payload = idx + 1 < command.count
+                    ? command[idx + 1].trimmingCharacters(in: .whitespacesAndNewlines)
+                    : ""
+                return payload.isEmpty ? nil : payload
+            }
+        }
+        return nil
+    }
+}