Log just one line in cppuhelper::ServiceManager::preloadImplementations()

That *is* what we want, I guess, so better I do it proactively before
I am told to do it. Sorry for the back and forth, but my main point in
touching this code was anyway the filtering out of the component (the
KDE4Backend thing) that causes a crash for me, at least, and which it
presumably is fairly pointless to preload anyway.

Also, filter out libraries that for some reason have an empty name.

Change-Id: I2cffd51e67c23977e0779e7f0d6faaf59d8819d9

cppuhelper/source/servicemanager.cxx

@@ -1805,6 +1805,34 @@ cppuhelper::ServiceManager::findServiceImplementation(
     return impl;
 }
 
+/// Make a simpler unique name for preload / progress reporting.
+#ifndef DISABLE_DYNLOADING
+static rtl::OUString simplifyModule(const rtl::OUString &uri)
+{
+    sal_Int32 nIdx;
+    OUStringBuffer edit(uri);
+    if ((nIdx = edit.lastIndexOf('/')) > 0)
+        edit.remove(0,nIdx+1);
+    if ((nIdx = edit.lastIndexOf(':')) > 0)
+        edit.remove(0,nIdx+1);
+    if ((nIdx = edit.lastIndexOf("lo.so")) > 0)
+        edit.truncate(nIdx);
+    if ((nIdx = edit.lastIndexOf(".3")) > 0)
+        edit.truncate(nIdx);
+    if ((nIdx = edit.lastIndexOf("gcc3.so")) > 0)
+        edit.truncate(nIdx);
+    if ((nIdx = edit.lastIndexOf(".so")) > 0)
+        edit.truncate(nIdx);
+    if ((nIdx = edit.lastIndexOf("_uno")) > 0)
+        edit.truncate(nIdx);
+    if ((nIdx = edit.lastIndexOf(".jar")) > 0)
+        edit.truncate(nIdx);
+    if (edit.indexOf("lib") == 0)
+        edit.remove(0,3);
+    return edit.makeStringAndClear();
+}
+#endif
+
 /// Used only by LibreOfficeKit when used by Online to pre-initialize
 void cppuhelper::ServiceManager::preloadImplementations() {
 #ifdef DISABLE_DYNLOADING
@@ -1814,6 +1842,9 @@ void cppuhelper::ServiceManager::preloadImplementations() {
     osl::MutexGuard g(rBHelper.rMutex);
     css::uno::Environment aSourceEnv(css::uno::Environment::getCurrent());
 
+    std::cerr << "preload:";
+    std::vector<OUString> aReported;
+
     // loop all implementations
     for (Data::NamedImplementations::const_iterator iterator(
             data_.namedImplementations.begin());
@@ -1823,6 +1854,16 @@ void cppuhelper::ServiceManager::preloadImplementations() {
         {
             const rtl::OUString &aLibrary = iterator->second->info->uri;
 
+            if (aLibrary.isEmpty())
+                continue;
+
+            if (std::find(aReported.begin(), aReported.end(), aLibrary) == aReported.end())
+            {
+                std::cerr << " " << simplifyModule(aLibrary);
+                std::cerr.flush();
+                aReported.push_back(aLibrary);
+            }
+
             // expand absolute URI implementation component library
             aUri = cppu::bootstrap_expandUri(aLibrary);
         }
@@ -1839,16 +1880,19 @@ void cppuhelper::ServiceManager::preloadImplementations() {
             // Blacklist some components that are known to fail
             if (iterator->second->info->name == "com.sun.star.comp.configuration.backend.KDE4Backend")
             {
-                std::cerr << "preload: Skipping " << iterator->second->info->name << std::endl;
+                std::cerr << ":skipping";
+                std::cerr.flush();
                 continue;
             }
 
             // load component library
-            std::cerr << "preload: Loading " << aUri << " for " << iterator->second->info->name << std::endl;
             osl::Module aModule(aUri, SAL_LOADMODULE_NOW | SAL_LOADMODULE_GLOBAL);
 
             if (!aModule.is())
-                std::cerr << "preload: Loading " << aUri << " for " << iterator->second->info->name << " failed" << std::endl;
+            {
+                std::cerr << ":failed" << std::endl;
+                std::cerr.flush();
+            }
 
             if (aModule.is() &&
                 !iterator->second->info->environment.isEmpty())
@@ -1934,6 +1978,7 @@ void cppuhelper::ServiceManager::preloadImplementations() {
             aModule.release();
         }
     }
+    std::cerr << std::endl;
 #endif
 }