Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibCore/Command.h

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
+ * Copyright (c) 2022, David Tuin <davidot@serenityos.org>
+ * Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/ByteBuffer.h>
+#include <AK/LexicalPath.h>
+#include <AK/Optional.h>
+#include <AK/String.h>
+#include <LibCore/File.h>
+#include <LibCore/Forward.h>
+#include <spawn.h>
+
+namespace Core {
+
+// FIXME: Unify this and the below 'command' functions with Command class below
+struct CommandResult {
+    int exit_code { 0 };
+    ByteBuffer output;
+    ByteBuffer error;
+};
+
+ErrorOr<CommandResult> command(ByteString const& program, Vector<ByteString> const& arguments, Optional<LexicalPath> chdir);
+ErrorOr<CommandResult> command(ByteString const& command_string, Optional<LexicalPath> chdir);
+
+class Command {
+public:
+    struct ProcessOutputs {
+        ByteBuffer standard_output;
+        ByteBuffer standard_error;
+    };
+
+    static ErrorOr<OwnPtr<Command>> create(StringView command, char const* const arguments[]);
+
+    Command(pid_t pid, NonnullOwnPtr<Core::File> stdin_file, NonnullOwnPtr<Core::File> stdout_file, NonnullOwnPtr<Core::File> stderr_file);
+
+    ErrorOr<void> write(StringView input);
+
+    ErrorOr<void> write_lines(Span<ByteString> lines);
+
+    ErrorOr<ProcessOutputs> read_all();
+
+    enum class ProcessResult {
+        Running,
+        DoneWithZeroExitCode,
+        Failed,
+        FailedFromTimeout,
+        Unknown,
+    };
+
+    ErrorOr<ProcessResult> status(int options = 0);
+
+private:
+    pid_t m_pid { -1 };
+    NonnullOwnPtr<Core::File> m_stdin;
+    NonnullOwnPtr<Core::File> m_stdout;
+    NonnullOwnPtr<Core::File> m_stderr;
+};
+
+}