From a687ab72dc01bd0e047d35cdf1bbfee907e3058a Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 14 Nov 2005 17:07:11 +0000
Subject: [PATCH] Added support for mining the ChangeLog for a list of
 contributors.

---
 applications/osgversion/osgversion.cpp | 316 ++++++++++++++++++++++++-
 1 file changed, 314 insertions(+), 2 deletions(-)

diff --git a/applications/osgversion/osgversion.cpp b/applications/osgversion/osgversion.cpp
index 43b7d4477..18b62ebb8 100644
--- a/applications/osgversion/osgversion.cpp
+++ b/applications/osgversion/osgversion.cpp
@@ -1,9 +1,321 @@
-#include <stdio.h>
 #include <osg/Version>
+#include <osg/ArgumentParser>
+#include <osg/ApplicationUsage>
+
+#include <set>
+#include <vector>
+#include <iostream>
+#include <fstream>
+
+typedef std::pair<std::string, std::string> NamePair;
+typedef std::set<NamePair> NameSet;
+
+NamePair EmptyNamePair;
 
 
-int main( int, char **)
+bool validName(const std::string& first)
 {
+    if (first.empty()) return false;
+    if (first[0]<'A' || first[0]>'Z') return false;
+    
+    if (first.size()>=2 && (first[1]<'a' || first[1]>'z')) return false; 
+
+    if (first=="Added") return false;
+    if (first=="CameraNode") return false;
+    if (first=="CopyOp") return false;
+    if (first=="Fixed") return false;
+    if (first=="Creator") return false;
+    if (first=="CullVisitor") return false;
+    if (first=="Drawable") return false;
+    if (first=="Geode") return false;
+    if (first=="GeoSet") return false;
+    if (first=="Image") return false;
+    if (first=="Images/SolarSystem") return false;
+    if (first=="IntersectVisitor") return false;
+    if (first=="LongIDRecord") return false;
+    if (first=="Makefile") return false;
+    if (first=="Matrix") return false;
+    if (first=="MemoryManager") return false;
+    if (first=="MeshRecord") return false;
+    if (first=="Multigen") return false;
+    if (first=="NewCullVisitor") return false;
+    if (first=="Output") return false;
+    if (first=="PageLOD") return false;
+    if (first=="Improved") return false;
+    if (first=="PagedLOD") return false;
+    if (first=="Referenced") return false;
+    if (first=="StateAttribute") return false;
+    if (first=="Switch") return false;
+    if (first=="TechniqueEventHandler") return false;
+    if (first=="Uniform") return false;
+    if (first=="Vec*") return false;
+    if (first=="Viewer") return false;
+    if (first=="VisualStudio") return false;
+    if (first=="X") return false;
+    if (first=="Y") return false;
+    if (first=="Producer") return false;
+    if (first=="New") return false;
+    if (first=="Removed") return false;
+    if (first=="Ouput") return false;
+    if (first=="ReaderWriters") return false;
+    if (first=="NodeVisitor") return false;
+    if (first=="Fixes") return false;
+    if (first=="FontImplementation") return false;
+    if (first=="DisplaySettings") return false;
+    return true;
+}
+
+std::string typoCorrection(const std::string& name)
+{
+#if 0
+    if (name=="") return "Tarantilils";
+    if (name=="") return "";
+    if (name=="") return "";
+    if (name=="") return "";
+#endif
+    if (name=="Heirtlein") return "Hertlein";
+    if (name=="Fredric") return "Frederic";
+    if (name=="Geof") return "Geoff";
+    if (name=="Sewel") return "Sewell";
+    if (name=="Moule") return "Moiule";
+    if (name=="Macro") return "Marco";
+    if (name=="March") return "Marco";
+    if (name=="Gronenger") return "Gronager";
+    if (name=="Gronger") return "Gronager";
+    if (name=="Wieblen") return "Weiblen";
+    if (name=="Molishtan") return "Moloshtan";
+    if (name=="Bistroviae") return "Bistrovic";
+    if (name=="Christaiansen") return "Christiansen";
+    if (name=="Daust") return "Daoust";
+    if (name=="Daved") return "David";
+    if (name=="Fred") return "Frederic";
+    if (name=="Fredrick") return "Frederic";
+    if (name=="Garrat") return "Garret";
+    if (name=="Heirtlein") return "Heirtlein";
+    if (name=="Hertlien") return "Hertlein";
+    if (name=="Hi") return "He";
+    if (name=="Inverson") return "Iverson";
+    if (name=="Iversion") return "Iverson";
+    if (name=="Jeoen") return "Joran";
+    if (name=="Johnasen") return "Johansen";
+    if (name=="Johhansen") return "Johansen";
+    if (name=="Johnansen") return "Johansen";
+    if (name=="Jolley") return "Jolly";
+    if (name=="J") return "Jose";
+    if (name=="Keuhne") return "Kuehne";
+    if (name=="Kheune") return "Kuehne";
+    if (name=="Lashari") return "Lashkari";
+    if (name=="Laskari") return "Lashkari";
+    if (name=="Mammond") return "Marmond";
+    if (name=="Marz") return "Martz";
+    if (name=="Molishtan") return "Molishtan";
+    if (name=="Moloshton") return "Moloshtan";
+    if (name=="Moloshton") return "Moloshtan";
+    if (name=="Nicklov") return "Nikolov";
+    if (name=="Olad") return "Olaf";
+    if (name=="Osfied") return "Osfield";
+    if (name=="Pail") return "Paul";
+    if (name=="Sokolosky") return "Sokolowsky";
+    if (name=="Sokolsky") return "Sokolowsky";
+    if (name=="Sonda") return "Sondra";
+    if (name=="Stansilav") return "Stanislav";
+    if (name=="Stefan") return "Stephan";
+    if (name=="Stell") return "Steel";
+    if (name=="Xennon") return "Hanson";
+    if (name=="Yfei") return "Yefei";
+    return name;
+}
+
+void nameCorrection(NamePair& name)
+{
+    if (name.first=="Eric" && name.second=="Hammil")
+    {
+        name.first = "Chris";
+        name.second = "Hanson";
+    }
+}
+
+void lastValidCharacter(const std::string& name, unsigned int& pos,char c)
+{
+    for(unsigned int i=0;i<pos;++i)
+    {
+        if (name[i]==c)
+        {
+            pos = i;
+            return;
+        }
+    }
+}
+
+void lastValidCharacter(const std::string& name, unsigned int& last)
+{
+    lastValidCharacter(name, last, '.');
+    lastValidCharacter(name, last, ',');
+    lastValidCharacter(name, last, '\'');
+    lastValidCharacter(name, last, '/');
+    lastValidCharacter(name, last, '\\');
+    lastValidCharacter(name, last, ':');
+    lastValidCharacter(name, last, ';');
+    lastValidCharacter(name, last, ')');
+}
+
+
+
+NamePair createName(const std::string& first, const std::string& second)
+{
+    if (first.empty()) return EmptyNamePair;
+    
+    unsigned int last = first.size();
+    
+    lastValidCharacter(first, last);
+    
+    if (last==0) return EmptyNamePair;
+    
+    std::string name;
+    
+    name.append(first.begin(), first.begin()+last);
+
+    if (!validName(name)) return EmptyNamePair;
+
+    name = typoCorrection(name);
+    
+    if (second.empty()) return NamePair(name,"");
+    
+    if (!validName(second)) return NamePair(name,"");
+
+    last = second.size();
+    
+    lastValidCharacter(second, last);
+    
+    if (last>0)
+    {
+        std::string surname(second.begin(), second.begin()+last);
+        surname = typoCorrection(surname);
+    
+        return NamePair(name, surname);
+    }
+    
+    return NamePair(name,"");
+}
+
+void readContributors(NameSet& names, const std::string& file)
+{
+    std::cout<<"readContributions(names,"<<file<<")"<<std::endl;
+
+    std::ifstream fin(file.c_str());
+    
+    typedef std::vector< std::string > Words;
+    Words words;
+    while(fin)
+    {
+        std::string keyword;
+        fin >> keyword;
+        words.push_back(keyword);
+    }
+    
+    std::string blank_string;
+    
+    for(unsigned int i=0; i< words.size(); ++i)
+    {
+        if (words[i]=="From" || 
+            words[i]=="from" || 
+            words[i]=="From:" || 
+            words[i]=="from:") 
+        {
+            if (i+2<words.size() && validName(words[i+1]))
+            {
+                NamePair name = createName(words[i+1], words[i+2]);
+                nameCorrection(name);
+                if (!name.first.empty()) names.insert(name);
+                i+=2;
+            }
+            else if (i+1<words.size() && validName(words[i+1]))
+            {
+                NamePair name = createName(words[i+1], blank_string);
+                nameCorrection(name);
+                if (!name.first.empty()) names.insert(name);
+                i+=1;
+            }
+        }
+    }
+
+    if (names.size()>1)
+    {
+        for(NameSet::iterator itr = names.begin();
+            itr != names.end();
+            )
+        {
+            if (itr->second.empty()) 
+            {
+                NameSet::iterator next_itr = itr;
+                ++next_itr;
+                
+                if (next_itr!=names.end() && itr->first==next_itr->first)
+                {
+                    names.erase(itr);
+                    itr = next_itr;
+                }
+                else
+                {
+                    ++itr;
+                }
+            }
+            else
+            {
+                ++itr;
+            }
+        }
+    }
+}
+
+void buildContributors(NameSet& names)
+{
+    names.insert(NamePair("Robert","Osfield"));
+    names.insert(NamePair("Don","Burns"));
+    names.insert(NamePair("Marco","Jez"));
+}
+
+int main( int argc, char **argv)
+{
+    osg::ArgumentParser arguments(&argc,argv);
+    arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options]");
+    arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
+    arguments.getApplicationUsage()->addCommandLineOption("-c or --contributors","Print out the contributors list.");
+    arguments.getApplicationUsage()->addCommandLineOption("-r <file> or --read <file>","Read the changelog to generate an estimated contributors list.");
+
     printf( "%s\n", osgGetVersion() );
+
+    bool printContributors = false;
+    while ( arguments.read("-c") || arguments.read("--contributors")) printContributors = true;
+
+    std::string changeLog;
+    while ( arguments.read("-r",changeLog) || arguments.read("--read",changeLog)) printContributors = true;
+
+    // if user request help write it out to cout.
+    if (arguments.read("-h") || arguments.read("--help"))
+    {
+        std::cout<<arguments.getApplicationUsage()->getCommandLineUsage()<<std::endl;
+        arguments.getApplicationUsage()->write(std::cout,arguments.getApplicationUsage()->getCommandLineOptions());
+        return 1;
+    }
+
+    if (printContributors)
+    {
+        NameSet names;
+        buildContributors(names);
+        if (!changeLog.empty())
+        {
+            readContributors(names, changeLog);
+        }
+        
+        std::cout<<names.size()<<" Contributors:"<<std::endl;
+        for(NameSet::iterator itr = names.begin();
+            itr != names.end();
+            ++itr)
+        {
+            std::cout<<"  "<<itr->first<<" "<<itr->second<<std::endl;
+        }
+    }
+
     return 0;
 }