Logging: Accept .ini files written by QSettings

For keys, QSettings escapes all characters outside of [-a-zA-Z0-9_.]
by using percent encoding, and changes '/' to '\'. That is,

  settings.setValue("qt.*", true)

will be written to an .ini file as

  qt.%2A=true

This means that QSettings can not be used to write general-purpose
qtlogging.ini files. Fix this by applying the reverse transformation
method from QSettings when reading in the .ini file.

[ChangeLog][Logging] Qt will now accept qtlogging.ini files
written by QSettings.

Task-number: QTBUG-69548
Change-Id: I55b7a8b433291268dc6855901f72b1c04f8ee6d3
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/auto/corelib/io/qloggingregistry/tst_qloggingregistry.cpp b/tests/auto/corelib/io/qloggingregistry/tst_qloggingregistry.cpp
index 5b61a6007d..a10e706ed7 100644
--- a/tests/auto/corelib/io/qloggingregistry/tst_qloggingregistry.cpp
+++ b/tests/auto/corelib/io/qloggingregistry/tst_qloggingregistry.cpp
@@ -187,6 +187,13 @@ private slots:
                           "default=false");
         QCOMPARE(parser.rules().size(), 1);
 
+        // QSettings escapes * to %2A when writing.
+        parser.setContent("[Rules]\n"
+                          "module.%2A=false");
+        QCOMPARE(parser.rules().size(), 1);
+        QCOMPARE(parser.rules().first().category, QString("module."));
+        QCOMPARE(parser.rules().first().flags, QLoggingRule::LeftFilter);
+
         parser.setContent("[OtherSection]\n"
                           "default=false");
         QCOMPARE(parser.rules().size(), 0);