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Utils: Make Environment::isSameExecutable also detect hard links

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Change-Id: I64041a60febf9f5724028c488b535c5ec7b1f6a0
Reviewed-by: hjk <hjk@qt.io>
This commit is contained in:
Christian Kandeler
2019-04-04 16:18:20 +02:00
parent 47201c6eb2
commit 118f713eb4
1 changed files with 23 additions and 0 deletions
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23
src/libs/utils/environment.cpp
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@@ -34,6 +34,12 @@
#include <QSet>
#include <QCoreApplication>
#ifdef Q_OS_UNIX
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
Q_GLOBAL_STATIC_WITH_ARGS(Utils::Environment, staticSystemEnvironment,
(QProcessEnvironment::systemEnvironment().toStringList()))
@@ -429,6 +435,21 @@ QStringList Environment::appendExeExtensions(const QString &executable) const
return execs;
}
static bool hasSameInode(const QString &file1, const QString &file2)
{
#ifdef Q_OS_UNIX
struct stat stat1;
if (stat(file1.toLocal8Bit().constData(), &stat1) < 0)
return false;
struct stat stat2;
if (stat(file2.toLocal8Bit().constData(), &stat2) < 0)
return false;
return stat1.st_ino == stat2.st_ino;
#else
return false;
#endif
}
bool Environment::isSameExecutable(const QString &exe1, const QString &exe2) const
{
const QStringList exe1List = appendExeExtensions(exe1);
@@ -441,6 +462,8 @@ bool Environment::isSameExecutable(const QString &exe1, const QString &exe2) con
return true;
if (FileUtils::resolveSymlinks(f1) == FileUtils::resolveSymlinks(f2))
return true;
if (hasSameInode(f1.toString(), f2.toString()))
return true;
}
}
return false;