From 92717eb9ed97447e725fb3ac6cb3182589053366 Mon Sep 17 00:00:00 2001
From: Dominik Riebeling <Dominik.Riebeling@gmail.com>
Date: Tue, 1 Apr 2008 20:30:41 +0000
Subject: Implement a function to resolve a given path case-insensitively. This
 is needed by file-based bootloader installs on case-sensitive systems.
 Bootloader installation not updated yet.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16921 a1c6a512-1295-4272-9138-f99709370657
---
 rbutil/rbutilqt/utils.cpp | 33 +++++++++++++++++++++++++++++++++
 rbutil/rbutilqt/utils.h   |  1 +
 2 files changed, 34 insertions(+)

diff --git a/rbutil/rbutilqt/utils.cpp b/rbutil/rbutilqt/utils.cpp
index caeb30a4b5..d77a1ac125 100644
--- a/rbutil/rbutilqt/utils.cpp
+++ b/rbutil/rbutilqt/utils.cpp
@@ -30,6 +30,7 @@
 #include <windows.h>
 #include <tchar.h>
 #endif
+#include <QDebug>
 
 // recursive function to delete a dir with files
 bool recRmdir( const QString &dirName )
@@ -54,6 +55,38 @@ bool recRmdir( const QString &dirName )
 }
 
 
+//! @brief resolves the given path, ignoring case.
+//! @param path absolute path to resolve.
+//! @return returns exact casing of path, empty string if path not found.
+QString resolvePathCase(QString path)
+{
+    QStringList elems;
+    QString realpath = "/";
+    elems = path.split("/", QString::SkipEmptyParts);
+
+    for(int i = 0; i < elems.size(); i++) {
+        QStringList direlems = QDir(realpath).entryList(QDir::AllEntries);
+        if(direlems.contains(elems.at(i), Qt::CaseInsensitive)) {
+            // need to filter using QRegExp as QStringList::filter(QString)
+            // matches any substring
+            QString expr = QString("^" + elems.at(i) + "$");
+            QRegExp rx = QRegExp(expr, Qt::CaseInsensitive);
+            QStringList a = direlems.filter(rx);
+
+            if(a.size() != 1)
+                return QString("");
+            if(!realpath.endsWith("/"))
+                realpath += "/";
+            realpath += a.at(0);
+        }
+        else
+            return QString("");
+    }
+    qDebug() << __func__ << path << "->" << realpath;
+    return realpath;
+}
+
+
 //! @brief get system proxy value.
 QUrl systemProxy(void)
 {
diff --git a/rbutil/rbutilqt/utils.h b/rbutil/rbutilqt/utils.h
index c7dbf58f76..8ca782fc05 100644
--- a/rbutil/rbutilqt/utils.h
+++ b/rbutil/rbutilqt/utils.h
@@ -25,6 +25,7 @@
 #include <QUrl>
 
 bool recRmdir( const QString &dirName );
+QString resolvePathCase(QString path);
 
 QUrl systemProxy(void);
 
-- 
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