Fix a bug in qdocs handling of excludedirs

The bug was there because the way qdoc tries to exclude the directories
given in the "excludedirs" variable:
It did a simple string comparision on the candidate path (to include)
with every string in the "excludedirs" variable.

However, this did not work for all cases, since the paths are not
canonicalized.
For instance, the problem I faced was that the following qdocconf
fragment: (config file located in doc/qtwidgets.qdocconf)
sourcedirs  += ..
excludedirs += snippets

Since qdoc would recursively parse all subfolders of sourcedirs, it
would at one point visit the snippets folder, but it would have the
relative path "../doc/snippets", which did not match with "snippets",
causing snippets to not be excluded.

In addition, it seems that qdoc tries hard not to use absolute paths
(maybe because of more human-friendly error messages). I therefore
chose to canonicalize the relative paths.

As a side-effect this also give a better output from qdoc, as
../doc/foo.qdoc:42: Missing link
will become
foo.qdoc:42: Missing link

Change-Id: If9c25fa569abd03542bd12675acd44d8f4e0282c
Reviewed-by: Martin Smith <martin.smith@nokia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/tools/qdoc/config.h b/src/tools/qdoc/config.h
index 408bffe77b..757235d6c2 100644
--- a/src/tools/qdoc/config.h
+++ b/src/tools/qdoc/config.h
@@ -76,6 +76,7 @@ public:
     QString getString(const QString& var) const;
     QSet<QString> getStringSet(const QString& var) const;
     QStringList getStringList(const QString& var) const;
+    QStringList getCanonicalRelativePathList(const QString& var) const;
     QStringList getCleanPathList(const QString& var) const;
     QRegExp getRegExp(const QString& var) const;
     QList<QRegExp> getRegExpList(const QString& var) const;
@@ -88,6 +89,7 @@ public:
     QStringList getExampleQdocFiles();
     static QStringList getFilesHere(const QString& dir,
                                     const QString& nameFilter,
+                                    const Location &location = Location(),
                                     const QSet<QString> &excludedDirs = QSet<QString>(),
                                     const QSet<QString> &excludedFiles = QSet<QString>());
     static QString findFile(const Location& location,