From 445f9e5f717bf1ad9b764704b320bbec237a7682 Mon Sep 17 00:00:00 2001 From: flow Date: Fri, 20 Jan 2023 11:11:35 -0300 Subject: [PATCH] feat+fix(Version): make comparsion FlexVer-compatible ... and fixes a minor issue in the parsing. This changes the expected behavior of Versions in one significant way: Now, Versions like 1.2 or 1.5 evaluate to LESS THAN 1.2.0 and 1.5.0 respectively. This makes sense for sorting versions, since one expects the versions without patch release to 'contain' the ones with, so the ones without should be evaluated uniformily with the ones with the patch. Signed-off-by: flow --- launcher/Version.cpp | 94 +++++++++++++++++++++++++++--------------- launcher/Version.h | 66 ++++++++++++++++------------- tests/Version_test.cpp | 16 +++---- 3 files changed, 106 insertions(+), 70 deletions(-) diff --git a/launcher/Version.cpp b/launcher/Version.cpp index 9307aab3..e4311f31 100644 --- a/launcher/Version.cpp +++ b/launcher/Version.cpp @@ -10,49 +10,63 @@ Version::Version(QString str) : m_string(std::move(str)) parse(); } +#define VERSION_OPERATOR(return_on_different) \ + bool exclude_our_sections = false; \ + bool exclude_their_sections = false; \ + \ + const auto size = qMax(m_sections.size(), other.m_sections.size()); \ + for (int i = 0; i < size; ++i) { \ + Section sec1 = (i >= m_sections.size()) ? Section() : m_sections.at(i); \ + Section sec2 = (i >= other.m_sections.size()) ? Section() : other.m_sections.at(i); \ + \ + { /* Don't include appendixes in the comparison */ \ + if (sec1.isAppendix()) \ + exclude_our_sections = true; \ + if (sec2.isAppendix()) \ + exclude_their_sections = true; \ + \ + if (exclude_our_sections) { \ + sec1 = Section(); \ + if (sec2.m_isNull) \ + break; \ + } \ + \ + if (exclude_their_sections) { \ + sec2 = Section(); \ + if (sec1.m_isNull) \ + break; \ + } \ + } \ + \ + if (sec1 != sec2) \ + return return_on_different; \ + } + bool Version::operator<(const Version& other) const { - const auto size = qMax(m_sections.size(), other.m_sections.size()); - for (int i = 0; i < size; ++i) { - const Section sec1 = - (i >= m_sections.size()) ? Section("") : m_sections.at(i); - const Section sec2 = - (i >= other.m_sections.size()) ? Section("") : other.m_sections.at(i); - - if (sec1 != sec2) - return sec1 < sec2; - } + VERSION_OPERATOR(sec1 < sec2) return false; } bool Version::operator==(const Version& other) const { - const auto size = qMax(m_sections.size(), other.m_sections.size()); - for (int i = 0; i < size; ++i) { - const Section sec1 = - (i >= m_sections.size()) ? Section("") : m_sections.at(i); - const Section sec2 = - (i >= other.m_sections.size()) ? Section("") : other.m_sections.at(i); - - if (sec1 != sec2) - return false; - } + VERSION_OPERATOR(false) return true; } -bool Version::operator!=(const Version &other) const +bool Version::operator!=(const Version& other) const { return !operator==(other); } -bool Version::operator<=(const Version &other) const +bool Version::operator<=(const Version& other) const { return *this < other || *this == other; } -bool Version::operator>(const Version &other) const +bool Version::operator>(const Version& other) const { return !(*this <= other); } -bool Version::operator>=(const Version &other) const +bool Version::operator>=(const Version& other) const { return !(*this < other); } @@ -62,25 +76,37 @@ void Version::parse() m_sections.clear(); QString currentSection; - auto classChange = [](QChar lastChar, QChar currentChar) { - return !lastChar.isNull() && ((!lastChar.isDigit() && currentChar.isDigit()) || (lastChar.isDigit() && !currentChar.isDigit())); + if (m_string.isEmpty()) + return; + + auto classChange = [&](QChar lastChar, QChar currentChar) { + if (lastChar.isNull()) + return false; + if (lastChar.isDigit() != currentChar.isDigit()) + return true; + + const QList s_separators{ '.', '-', '+' }; + if (s_separators.contains(currentChar) && currentSection.at(0) != currentChar) + return true; + + return false; }; - for (int i = 0; i < m_string.size(); ++i) { + currentSection += m_string.at(0); + for (int i = 1; i < m_string.size(); ++i) { const auto& current_char = m_string.at(i); - if ((i > 0 && classChange(m_string.at(i - 1), current_char)) || current_char == '.' || current_char == '-' || current_char == '+') { - if (!currentSection.isEmpty()) { + if (classChange(m_string.at(i - 1), current_char)) { + if (!currentSection.isEmpty()) m_sections.append(Section(currentSection)); - } currentSection = ""; } + currentSection += current_char; } - if (!currentSection.isEmpty()) { - m_sections.append(Section(currentSection)); - } -} + if (!currentSection.isEmpty()) + m_sections.append(Section(currentSection)); +} /// qDebug print support for the Version class QDebug operator<<(QDebug debug, const Version& v) diff --git a/launcher/Version.h b/launcher/Version.h index 23481c29..659f8e54 100644 --- a/launcher/Version.h +++ b/launcher/Version.h @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-3.0-only /* * PolyMC - Minecraft Launcher + * Copyright (C) 2023 flowln * Copyright (C) 2022 Sefa Eyeoglu * * This program is free software: you can redistribute it and/or modify @@ -60,7 +61,7 @@ class Version { private: struct Section { - explicit Section(QString fullString) : m_isNull(true), m_fullString(std::move(fullString)) + explicit Section(QString fullString) : m_fullString(std::move(fullString)) { int cutoff = m_fullString.size(); for (int i = 0; i < m_fullString.size(); i++) { @@ -95,45 +96,54 @@ class Version { explicit Section() = default; - bool m_isNull = false; - int m_numPart = 0; + bool m_isNull = true; + int m_numPart = 0; QString m_stringPart; + QString m_fullString; + [[nodiscard]] inline bool isAppendix() const { return m_stringPart.startsWith('+'); } + [[nodiscard]] inline bool isPreRelease() const { return m_stringPart.startsWith('-') && m_stringPart.length() > 1; } + inline bool operator==(const Section& other) const { if (m_isNull && !other.m_isNull) - return other.m_numPart == 0; - + return false; if (!m_isNull && other.m_isNull) - return m_numPart == 0; - - if (m_isNull || other.m_isNull) - return (m_stringPart == ".") || (other.m_stringPart == "."); - - if (!m_isNull && !other.m_isNull) - return (m_numPart == other.m_numPart) && (m_stringPart == other.m_stringPart); - - return m_fullString == other.m_fullString; - } - - inline bool operator<(const Section &other) const - { - if (m_isNull && !other.m_isNull) - return other.m_numPart > 0; - - if (!m_isNull && other.m_isNull) - return m_numPart < 0; - - if (m_isNull || other.m_isNull) - return true; + return false; if (!m_isNull && !other.m_isNull) { - if(m_numPart < other.m_numPart) + return (m_numPart == other.m_numPart) && (m_stringPart == other.m_stringPart); + } + + return true; + } + + inline bool operator<(const Section& other) const + { + static auto unequal_is_less = [](Section const& non_null) -> bool { + if (non_null.m_stringPart.isEmpty()) + return non_null.m_numPart == 0; + return (non_null.m_stringPart != QLatin1Char('.')) && non_null.isPreRelease(); + }; + + if (!m_isNull && other.m_isNull) + return unequal_is_less(*this); + if (m_isNull && !other.m_isNull) + return !unequal_is_less(other); + + if (!m_isNull && !other.m_isNull) { + if (m_numPart < other.m_numPart) return true; - if(m_numPart == other.m_numPart && m_stringPart < other.m_stringPart) + if (m_numPart == other.m_numPart && m_stringPart < other.m_stringPart) return true; + + if (!m_stringPart.isEmpty() && other.m_stringPart.isEmpty()) + return false; + if (m_stringPart.isEmpty() && !other.m_stringPart.isEmpty()) + return true; + return false; } diff --git a/tests/Version_test.cpp b/tests/Version_test.cpp index bb0a7f5a..afb4c610 100644 --- a/tests/Version_test.cpp +++ b/tests/Version_test.cpp @@ -33,24 +33,24 @@ class VersionTest : public QObject { addDataColumns(); QTest::newRow("equal, explicit") << "1.2.0" << "1.2.0" << false << true; - QTest::newRow("equal, implicit 1") << "1.2" << "1.2.0" << false << true; - QTest::newRow("equal, implicit 2") << "1.2.0" << "1.2" << false << true; QTest::newRow("equal, two-digit") << "1.42" << "1.42" << false << true; QTest::newRow("lessThan, explicit 1") << "1.2.0" << "1.2.1" << true << false; QTest::newRow("lessThan, explicit 2") << "1.2.0" << "1.3.0" << true << false; QTest::newRow("lessThan, explicit 3") << "1.2.0" << "2.2.0" << true << false; - QTest::newRow("lessThan, implicit 1") << "1.2" << "1.2.1" << true << false; - QTest::newRow("lessThan, implicit 2") << "1.2" << "1.3.0" << true << false; - QTest::newRow("lessThan, implicit 3") << "1.2" << "2.2.0" << true << false; + QTest::newRow("lessThan, implicit 1") << "1.2" << "1.2.0" << true << false; + QTest::newRow("lessThan, implicit 2") << "1.2" << "1.2.1" << true << false; + QTest::newRow("lessThan, implicit 3") << "1.2" << "1.3.0" << true << false; + QTest::newRow("lessThan, implicit 4") << "1.2" << "2.2.0" << true << false; QTest::newRow("lessThan, two-digit") << "1.41" << "1.42" << true << false; QTest::newRow("greaterThan, explicit 1") << "1.2.1" << "1.2.0" << false << false; QTest::newRow("greaterThan, explicit 2") << "1.3.0" << "1.2.0" << false << false; QTest::newRow("greaterThan, explicit 3") << "2.2.0" << "1.2.0" << false << false; - QTest::newRow("greaterThan, implicit 1") << "1.2.1" << "1.2" << false << false; - QTest::newRow("greaterThan, implicit 2") << "1.3.0" << "1.2" << false << false; - QTest::newRow("greaterThan, implicit 3") << "2.2.0" << "1.2" << false << false; + QTest::newRow("greaterThan, implicit 1") << "1.2.0" << "1.2" << false << false; + QTest::newRow("greaterThan, implicit 2") << "1.2.1" << "1.2" << false << false; + QTest::newRow("greaterThan, implicit 3") << "1.3.0" << "1.2" << false << false; + QTest::newRow("greaterThan, implicit 4") << "2.2.0" << "1.2" << false << false; QTest::newRow("greaterThan, two-digit") << "1.42" << "1.41" << false << false; }