Utils: Don't complain about non-existing devices

FilePath::exists() does not need to warn if the device does not exist.

Change-Id: I2ce6a5dec8806a8ee0a2f0e53a2c556c1d8c9e5b
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/filepath.cpp

@@ -455,30 +455,6 @@ void FilePath::setParts(const QStringView scheme, const QStringView host, QStrin
     m_pathLen = path.size();
 }
 
-/*!
-   Returns a bool indicating whether a file or directory with this FilePath exists.
-*/
-bool FilePath::exists() const
-{
-    return fileAccess()->exists(*this);
-}
-
-/*!
-    Returns a bool indicating whether this is a writable directory.
-*/
-bool FilePath::isWritableDir() const
-{
-    return fileAccess()->isWritableDirectory(*this);
-}
-
-/*!
-    Returns a bool indicating whether this is a writable file.
-*/
-bool FilePath::isWritableFile() const
-{
-    return fileAccess()->isWritableFile(*this);
-}
-
 /*!
     \brief Re-uses or creates a directory in this location.
 
@@ -496,14 +472,6 @@ bool FilePath::ensureExistingFile() const
     return fileAccess()->ensureExistingFile(*this);
 }
 
-/*!
-    Returns a bool indicating whether this is an executable file.
-*/
-bool FilePath::isExecutableFile() const
-{
-    return fileAccess()->isExecutableFile(*this);
-}
-
 /*!
     Returns a bool indicating on whether a process with this FilePath's
     native path is likely to start.
@@ -551,31 +519,6 @@ expected_str<FilePath> FilePath::createTempFile() const
     return fileAccess()->createTempFile(*this);
 }
 
-bool FilePath::isReadableFile() const
-{
-    return fileAccess()->isReadableFile(*this);
-}
-
-bool FilePath::isReadableDir() const
-{
-    return fileAccess()->isReadableDirectory(*this);
-}
-
-bool FilePath::isFile() const
-{
-    return fileAccess()->isFile(*this);
-}
-
-bool FilePath::isDir() const
-{
-    return fileAccess()->isDirectory(*this);
-}
-
-bool FilePath::isSymLink() const
-{
-    return fileAccess()->isSymLink(*this);
-}
-
 bool FilePath::hasHardLinks() const
 {
     return fileAccess()->hasHardLinks(*this);
@@ -1217,6 +1160,100 @@ bool FilePath::hasFileAccess() const
     return access && access.value();
 }
 
+/*!
+   Returns a bool indicating whether a file or directory with this FilePath exists.
+*/
+bool FilePath::exists() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->exists(*this);
+}
+
+/*!
+    Returns a bool indicating whether this is an executable file.
+*/
+bool FilePath::isExecutableFile() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isExecutableFile(*this);
+}
+
+/*!
+    Returns a bool indicating whether this is a writable directory.
+*/
+bool FilePath::isWritableDir() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isWritableDirectory(*this);
+}
+
+/*!
+    Returns a bool indicating whether this is a writable file.
+*/
+bool FilePath::isWritableFile() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isWritableFile(*this);
+}
+
+
+bool FilePath::isReadableFile() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isReadableFile(*this);
+}
+
+bool FilePath::isReadableDir() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isReadableDirectory(*this);
+}
+
+bool FilePath::isFile() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isFile(*this);
+}
+
+bool FilePath::isDir() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isDirectory(*this);
+}
+
+bool FilePath::isSymLink() const
+{
+    const expected_str<DeviceFileAccess *> access = getFileAccess(*this);
+    if (!access)
+        return false;
+
+    return (*access)->isSymLink(*this);
+}
+
 /*!
     Constructs a FilePath from \a filepath. The \a defaultExtension is appended
     to \a filepath if that does not have an extension already.