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ea59bfaae7
It aligns better with the Filesystem Heirarchy Standard[1] to put our program-specific helper programs that are not intended to be executed by the user of the application in $prefix/libexec or in whatever the packager sets as the CMake equivalent. Namely, on Debian systems this should be /usr/lib/Ladybird or similar. [1] https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibexec
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "Utilities.h"
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#include <AK/LexicalPath.h>
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#include <AK/Platform.h>
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#include <LibCore/ResourceImplementationFile.h>
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#include <LibCore/System.h>
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#include <LibFileSystem/FileSystem.h>
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#define TOKENCAT(x, y) x##y
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#define STRINGIFY(x) TOKENCAT(x, sv)
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// This is expected to be set from the build scripts, if a packager desires
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#if defined(LADYBIRD_LIBEXECDIR)
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constexpr auto libexec_path = STRINGIFY(LADYBIRD_LIBEXECDIR);
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#else
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constexpr auto libexec_path = "libexec"sv;
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#endif
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ByteString s_serenity_resource_root;
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ErrorOr<ByteString> application_directory()
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{
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auto current_executable_path = TRY(Core::System::current_executable_path());
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return LexicalPath::dirname(current_executable_path);
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}
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[[gnu::used]] static LexicalPath find_prefix(LexicalPath const& application_directory);
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static LexicalPath find_prefix(LexicalPath const& application_directory)
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{
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if (application_directory.string().ends_with(libexec_path)) {
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// Strip libexec_path if it's there
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return LexicalPath(application_directory.string().substring_view(0, application_directory.string().length() - libexec_path.length()));
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}
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// Otherwise, we are in $prefix/bin
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return application_directory.parent();
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}
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void platform_init()
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{
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s_serenity_resource_root = [] {
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auto* home = getenv("XDG_CONFIG_HOME") ?: getenv("HOME");
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if (home != nullptr) {
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auto home_lagom = ByteString::formatted("{}/.lagom", home);
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if (FileSystem::is_directory(home_lagom))
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return home_lagom;
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}
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auto app_dir = MUST(application_directory());
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#ifdef AK_OS_MACOS
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return LexicalPath(app_dir).parent().append("Resources"sv).string();
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#else
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return find_prefix(LexicalPath(app_dir)).append("share/Lagom"sv).string();
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#endif
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}();
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Core::ResourceImplementation::install(make<Core::ResourceImplementationFile>(MUST(String::from_byte_string(s_serenity_resource_root))));
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}
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ErrorOr<Vector<ByteString>> get_paths_for_helper_process(StringView process_name)
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{
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auto application_path = TRY(application_directory());
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Vector<ByteString> paths;
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#if !defined(AK_OS_MACOS)
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auto prefix = find_prefix(LexicalPath(application_path));
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TRY(paths.try_append(LexicalPath::join(prefix.string(), libexec_path, process_name).string()));
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TRY(paths.try_append(LexicalPath::join(prefix.string(), "bin"sv, process_name).string()));
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#endif
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TRY(paths.try_append(ByteString::formatted("{}/{}", application_path, process_name)));
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TRY(paths.try_append(ByteString::formatted("./{}", process_name)));
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// NOTE: Add platform-specific paths here
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return paths;
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}
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