From 882343ea200fe28810bf217a820816affe885a39 Mon Sep 17 00:00:00 2001 From: Thomas Tuegel Date: Tue, 17 Sep 2019 05:36:25 -0500 Subject: [PATCH 08/10] qtbase-tzdir --- src/corelib/time/qtimezoneprivate_tz.cpp | 31 +++++++++++++++--------- 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/src/corelib/time/qtimezoneprivate_tz.cpp b/src/corelib/time/qtimezoneprivate_tz.cpp index 3c2695a789..e75735f88f 100644 --- a/src/corelib/time/qtimezoneprivate_tz.cpp +++ b/src/corelib/time/qtimezoneprivate_tz.cpp @@ -75,7 +75,11 @@ typedef QHash QTzTimeZoneHash; // Parse zone.tab table, assume lists all installed zones, if not will need to read directories static QTzTimeZoneHash loadTzTimeZones() { - QString path = QStringLiteral("/usr/share/zoneinfo/zone.tab"); + // Try TZDIR first, in case we're running on NixOS. + QString path = QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/zone.tab"); + // Fallback to traditional paths in case we are not on NixOS. + if (!QFile::exists(path)) + path = QStringLiteral("/usr/share/zoneinfo/zone.tab"); if (!QFile::exists(path)) path = QStringLiteral("/usr/lib/zoneinfo/zone.tab"); @@ -658,20 +662,23 @@ void QTzTimeZonePrivate::init(const QByteArray &ianaId) if (!tzif.open(QIODevice::ReadOnly)) return; } else { - // Open named tz, try modern path first, if fails try legacy path - tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId)); + // Try TZDIR first, in case we're running on NixOS + tzif.setFileName(QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/") + QString::fromLocal8Bit(ianaId)); if (!tzif.open(QIODevice::ReadOnly)) { - tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId)); + tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId)); if (!tzif.open(QIODevice::ReadOnly)) { - // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ - const QByteArray zoneInfo = ianaId.split(',').at(0); - const char *begin = zoneInfo.constBegin(); - if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset() - && (begin == zoneInfo.constEnd() - || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) { - m_id = m_posixRule = ianaId; + tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId)); + if (!tzif.open(QIODevice::ReadOnly)) { + // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ + const QByteArray zoneInfo = ianaId.split(',').at(0); + const char *begin = zoneInfo.constBegin(); + if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset() + && (begin == zoneInfo.constEnd() + || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) { + m_id = m_posixRule = ianaId; + } + return; } - return; } } } -- 2.25.1