mirror of
https://github.com/SerenityOS/serenity
synced 2024-09-16 06:30:41 +00:00
137 lines
4.4 KiB
C++
137 lines
4.4 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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* Copyright (c) 2022, Tim Schumacher <timschumi@gmx.de>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/LexicalPath.h>
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#include <LibMain/Main.h>
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#include <Userland/Shell/Shell.h>
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#define ENUMERATE_UTILITIES(E, ALIAS) \
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ALIAS(b2sum, checksum) \
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E(cat) \
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E(checksum) \
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E(chmod) \
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E(chown) \
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E(cp) \
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E(df) \
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E(env) \
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E(file) \
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E(find) \
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E(id) \
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E(less) \
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E(ln) \
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E(ls) \
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E(lsblk) \
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ALIAS(md5sum, checksum) \
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E(mkdir) \
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E(mknod) \
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E(mount) \
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E(mv) \
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E(ps) \
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E(rm) \
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E(rmdir) \
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E(sh) \
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ALIAS(sha1sum, checksum) \
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ALIAS(sha256sum, checksum) \
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ALIAS(sha512sum, checksum) \
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ALIAS(Shell, sh) \
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E(tail) \
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E(tree) \
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E(umount) \
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E(uname) \
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E(uniq)
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// Declare the entrypoints of all the tools that we delegate to.
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// Some tools have additional aliases that we skip in the declarations.
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// Relying on `decltype(serenity_main)` ensures that we always stay consistent with the `serenity_main` signature.
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#define DECLARE_ENTRYPOINT(name) decltype(serenity_main) name##_main;
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#define SKIP(alias, name)
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ENUMERATE_UTILITIES(DECLARE_ENTRYPOINT, SKIP)
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#undef DECLARE_ENTRYPOINT
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#undef SKIP
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static void fail()
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{
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#define TOOL_NAME(name) #name##sv,
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#define ALIAS_NAME(alias, name) #alias##sv,
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auto const tool_names = {
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ENUMERATE_UTILITIES(TOOL_NAME, ALIAS_NAME)
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};
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#undef TOOL_NAME
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#undef ALIAS_NAME
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outln(stderr);
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outln(stderr, "Usage:");
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outln(stderr, "* Specify a utility as an argument:");
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outln(stderr, " $ BuggieBox UTILITY");
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outln(stderr, "* Create a symbolic link with the target being this binary,");
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outln(stderr, " and ensure the basename is one of the supported utilities' name.");
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outln(stderr);
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outln(stderr, "The following utilities are supported:");
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int count = 0;
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for (auto const& tool_name : tool_names) {
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if (++count % 5 == 1)
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out(stderr, "\n\t");
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out(stderr, "{:12}", tool_name);
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}
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outln(stderr);
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}
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struct Runner {
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StringView name;
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ErrorOr<int> (*func)(Main::Arguments arguments) = nullptr;
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};
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static constexpr Runner s_runners[] = {
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#define RUNNER_ENTRY(name) { #name##sv, name##_main },
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#define ALIAS_RUNNER_ENTRY(alias, name) { #alias##sv, name##_main },
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ENUMERATE_UTILITIES(RUNNER_ENTRY, ALIAS_RUNNER_ENTRY)
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#undef RUNNER_ENTRY
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#undef ALIAS_RUNNER_ENTRY
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};
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static ErrorOr<int> run_program(Main::Arguments arguments, LexicalPath const& runbase, bool& found_runner)
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{
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for (auto& runner : s_runners) {
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if (runbase.basename() == runner.name) {
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found_runner = true;
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return runner.func(arguments);
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}
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}
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return 0;
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}
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static ErrorOr<int> buggiebox_main(Main::Arguments arguments)
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{
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if (arguments.argc == 0) {
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outln(stderr, "Detected directly running BuggieBox without specifying a utility.");
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fail();
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return 1;
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}
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bool found_runner = false;
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LexicalPath runbase { arguments.strings[0] };
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auto result = TRY(run_program(arguments, runbase, found_runner));
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if (!found_runner) {
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outln(stderr, "'{}' is not supported by BuggieBox.", runbase);
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fail();
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}
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return result;
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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LexicalPath runbase { arguments.strings[0] };
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if (runbase.basename() == "BuggieBox"sv) {
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Main::Arguments utility_arguments = arguments;
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utility_arguments.argc--;
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utility_arguments.argv++;
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utility_arguments.strings = arguments.strings.slice(1);
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return buggiebox_main(utility_arguments);
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}
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return buggiebox_main(arguments);
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}
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