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Utils: Fix endless loop when ls iterating subdirs

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findUsingLs did try to enter "." and "..", with especially "." leading
to an endless loop.

findUsingLs also did not correctly concatenate the parent folder
for sub directories.

Change-Id: Ieafad4d4ef38d2fb550ddef1d2edf8183ce8032e
Reviewed-by: hjk <hjk@qt.io>
This commit is contained in:
Marcus Tillmanns
2023-11-07 12:25:29 +01:00
parent 845676f814
commit 437797d1c4
3 changed files with 40 additions and 13 deletions
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12
src/libs/utils/devicefileaccess.cpp
View File

@@ -1256,7 +1256,8 @@ bool UnixDeviceFileAccess::iterateWithFind(const FilePath &filePath,
void UnixDeviceFileAccess::findUsingLs(const QString &current,
const FileFilter &filter,
QStringList *found) const
QStringList *found,
const QString &start) const
{
const RunResult result = runInShell(
{"ls", {"-1", "-a", "-p", "--", current}, OsType::OsTypeLinux});
@@ -1265,10 +1266,11 @@ void UnixDeviceFileAccess::findUsingLs(const QString &current,
const QChar last = entry.back();
if (last == '/') {
entry.chop(1);
if (filter.iteratorFlags.testFlag(QDirIterator::Subdirectories))
findUsingLs(current + '/' + entry, filter, found);
if (filter.iteratorFlags.testFlag(QDirIterator::Subdirectories) && entry != "."
&& entry != "..")
findUsingLs(current + '/' + entry, filter, found, start + entry + "/");
}
found->append(entry);
found->append(start + entry);
}
}
@@ -1327,7 +1329,7 @@ void UnixDeviceFileAccess::iterateDirectory(const FilePath &filePath,
// if we do not have find - use ls as fallback
QStringList entries;
findUsingLs(filePath.path(), filter, &entries);
findUsingLs(filePath.path(), filter, &entries, {});
iterateLsOutput(filePath, entries, filter, callBack);
}

11
src/libs/utils/devicefileaccess.h
View File

@@ -183,16 +183,15 @@ protected:
expected_str<FilePath> createTempFile(const FilePath &filePath) override;
void findUsingLs(const QString &current,
const FileFilter &filter,
QStringList *found,
const QString &start) const;
private:
bool iterateWithFind(
const FilePath &filePath,
bool iterateWithFind(const FilePath &filePath,
const FileFilter &filter,
const FilePath::IterateDirCallback &callBack) const;
void findUsingLs(
const QString &current,
const FileFilter &filter,
QStringList *found) const;
QStringList statArgs(const FilePath &filePath,
const QString &linuxFormat,

26
tests/auto/utils/unixdevicefileaccess/tst_unixdevicefileaccess.cpp
View File

@@ -48,6 +48,11 @@ public:
p.waitForFinished();
return {p.exitCode(), p.readAllStandardOutput(), p.readAllStandardError()};
}
void findUsingLs(const QString &current, const FileFilter &filter, QStringList *found)
{
UnixDeviceFileAccess::findUsingLs(current, filter, found, {});
}
};
class tst_unixdevicefileaccess : public QObject
@@ -69,6 +74,27 @@ private slots:
QCOMPARE(size, 1024);
}
void findUsingLs()
{
QStringList result;
m_dfa.findUsingLs(m_tempDir.path(),
{{}, QDir::NoFilter, QDirIterator::Subdirectories},
&result);
QCOMPARE(result, QStringList({".", "..", "size-test"}));
QDir tDir(m_tempDir.path());
tDir.mkdir("lsfindsubdir");
result.clear();
m_dfa.findUsingLs(m_tempDir.path(),
{{}, QDir::NoFilter, QDirIterator::Subdirectories},
&result);
QCOMPARE(result,
QStringList(
{".", "..", "lsfindsubdir/.", "lsfindsubdir/..", "lsfindsubdir", "size-test"}));
}
private:
TestDFA m_dfa;
DeviceFileAccess *m_dfaPtr = &m_dfa;