Fixed bug in IcePatch2: / couldn't be used as the data dir.

3 files changed, 42 insertions, 12 deletions

diff --git a/cpp/src/IcePatch2/Calc.cpp b/cpp/src/IcePatch2/Calc.cpp
index 4e4d82d7151..0e4e7e40321 100644
--- a/cpp/src/IcePatch2/Calc.cpp
+++ b/cpp/src/IcePatch2/Calc.cpp
@@ -213,8 +213,13 @@ main(int argc, char* argv[])
 	    }
 	}
 
-	string absDataDirWithSlash = absDataDir + '/';
-	
+	//
+	// We must call simplify() here: under Cygwin, any path starting with
+	// a double slash simply doesn't work. But, if dataDir is "/", we end
+	// up with paths that start with "//" unless we call simplify().
+	//
+	string absDataDirWithSlash = simplify(absDataDir + '/');
+
 	for(p = fileSeq.begin(); p != fileSeq.end(); ++p)
 	{
 	    if(p->compare(0, absDataDirWithSlash.size(), absDataDirWithSlash) != 0)
diff --git a/cpp/src/IcePatch2/ClientUtil.cpp b/cpp/src/IcePatch2/ClientUtil.cpp
index fcfb2c0ce94..e5bbed6d9ba 100755
--- a/cpp/src/IcePatch2/ClientUtil.cpp
+++ b/cpp/src/IcePatch2/ClientUtil.cpp
@@ -190,7 +190,7 @@ IcePatch2::Patcher::Patcher(const CommunicatorPtr& communicator, const PatcherFe
 	}
 #endif
     
-	const_cast<string&>(_dataDir) = string(cwd) + '/' + _dataDir;
+	const_cast<string&>(_dataDir) = simplify(string(cwd) + '/' + _dataDir);
     }
 	
     PropertiesPtr properties = communicator->getProperties();
@@ -475,7 +475,7 @@ IcePatch2::Patcher::patch(const string& d)
     }
     else
     {
-	string dirWithSlash = dir + '/';
+	string dirWithSlash = simplify(dir + '/');
 
 	FileInfoSeq::const_iterator p;
 
@@ -706,12 +706,12 @@ IcePatch2::Patcher::updateFilesInternal(const FileInfoSeq& files, const Decompre
 
 	    if(p->size == 0)
 	    {
-		string path = _dataDir + '/' + p->path;
+		string path = simplify(_dataDir + '/' + p->path);
 		ofstream file(path.c_str(), ios::binary);
 	    }
 	    else
 	    {
-		string pathBZ2 = _dataDir + '/' + p->path + ".bz2";
+		string pathBZ2 = simplify(_dataDir + '/' + p->path + ".bz2");
 	    
 		string dir = getDirname(pathBZ2);
 		if(!dir.empty())
diff --git a/cpp/src/IcePatch2/Util.cpp b/cpp/src/IcePatch2/Util.cpp
index c8f8ff2b087..7cc6b1442e7 100644
--- a/cpp/src/IcePatch2/Util.cpp
+++ b/cpp/src/IcePatch2/Util.cpp
@@ -247,11 +247,22 @@ IcePatch2::simplify(const string& path)
 	result.erase(0, 2);
     }
 
+    if(result == "/." ||
+       result.size() == 4 && isalpha(result[0]) && result[1] == ':' && result[2] == '/' && result[3] == '.')
+    {
+       return result.substr(0, result.size() - 1);
+    }
+
     if(result.size() >= 2 && result.substr(result.size() - 2, 2) == "/.")
     {
 	result.erase(result.size() - 2, 2);
     }
 
+    if(result == "/" || result.size() == 3 && isalpha(result[0]) && result[1] == ':' && result[2] == '/')
+    {
+        return result;
+    }
+
     if(result.size() >= 1 && result[result.size() - 1] == '/')
     {
 	result.erase(result.size() - 1);
@@ -275,6 +286,17 @@ IcePatch2::isAbsolute(const string& pa)
 #endif
 }
 
+bool
+IcePatch2::isRoot(const string& pa)
+{
+    string path = simplify(pa);
+#ifdef _WIN32
+    return path == "/" || path.size() == 3 && isalpha(path[0]) && path[1] == ':' && path[2] == '/';
+#else
+    return path == "/";
+#endif
+}
+
 string
 IcePatch2::getSuffix(const string& pa)
 {
@@ -417,13 +439,16 @@ IcePatch2::removeRecursive(const string& pa)
 	    removeRecursive(path + '/' + *p);
 	}
 
+	if(!isRoot(path))
+	{
 #ifdef _WIN32
-	if(_rmdir(path.c_str()) == -1)
+	    if(_rmdir(path.c_str()) == -1)
 #else
-	if(rmdir(path.c_str()) == -1)
+	    if(rmdir(path.c_str()) == -1)
 #endif
-	{
-	    throw "cannot remove directory `" + path + "':\n" + lastError();
+	    {
+		throw "cannot remove directory `" + path + "':\n" + lastError();
+	    }
 	}
     }
     else
@@ -443,7 +468,7 @@ IcePatch2::readDirectory(const string& pa)
 #ifdef _WIN32
 
     struct _finddata_t data;
-    long h = _findfirst((path + "/*").c_str(), &data);
+    long h = _findfirst(simplify((path + "/*")).c_str(), &data);
     if(h == -1)
     {
 	throw "cannot read directory `" + path + "':\n" + lastError();
@@ -698,7 +723,7 @@ getFileInfoSeqInt(const string& basePath, const string& relPath, int compress, G
 	return true;
     }
 
-    const string path = basePath + '/' + relPath;
+    const string path = simplify(basePath + '/' + relPath);
 
     if(ignoreSuffix(path))
     {