1 files changed, 232 insertions, 0 deletions
diff --git a/eigen/scripts/eigen_gen_credits.cpp b/eigen/scripts/eigen_gen_credits.cpp
new file mode 100644
index 0000000..f2e8163
--- /dev/null
+++ b/eigen/scripts/eigen_gen_credits.cpp
@@ -0,0 +1,232 @@
+#include <string>
+#include <sstream>
+#include <iostream>
+#include <fstream>
+#include <iomanip>
+#include <map>
+#include <list>
+
+using namespace std;
+
+// this function takes a line that may contain a name and/or email address,
+// and returns just the name, while fixing the "bad cases".
+std::string contributor_name(const std::string& line)
+{
+  string result;
+
+  // let's first take care of the case of isolated email addresses, like
+  // "user@localhost.localdomain" entries
+  if(line.find("markb@localhost.localdomain") != string::npos)
+  {
+    return "Mark Borgerding";
+  }
+
+  if(line.find("kayhman@contact.intra.cea.fr") != string::npos)
+  {
+    return "Guillaume Saupin";
+  }
+
+  // from there on we assume that we have a entry of the form
+  // either:
+  //   Bla bli Blurp
+  // or:
+  //   Bla bli Blurp <bblurp@email.com>
+  
+  size_t position_of_email_address = line.find_first_of('<');
+  if(position_of_email_address != string::npos)
+  {
+    // there is an e-mail address in <...>.
+    
+    // Hauke once committed as "John Smith", fix that.
+    if(line.find("hauke.heibel") != string::npos)
+      result = "Hauke Heibel";
+    else
+    {
+      // just remove the e-mail address
+      result = line.substr(0, position_of_email_address);
+    }
+  }
+  else
+  {
+    // there is no e-mail address in <...>.
+    
+    if(line.find("convert-repo") != string::npos)
+      result = "";
+    else
+      result = line;
+  }
+
+  // remove trailing spaces
+  size_t length = result.length();
+  while(length >= 1 && result[length-1] == ' ') result.erase(--length);
+
+  return result;
+}
+
+// parses hg churn output to generate a contributors map.
+map<string,int> contributors_map_from_churn_output(const char *filename)
+{
+  map<string,int> contributors_map;
+
+  string line;
+  ifstream churn_out;
+  churn_out.open(filename, ios::in);
+  while(!getline(churn_out,line).eof())
+  {
+    // remove the histograms "******" that hg churn may draw at the end of some lines
+    size_t first_star = line.find_first_of('*');
+    if(first_star != string::npos) line.erase(first_star);
+    
+    // remove trailing spaces
+    size_t length = line.length();
+    while(length >= 1 && line[length-1] == ' ') line.erase(--length);
+
+    // now the last space indicates where the number starts
+    size_t last_space = line.find_last_of(' ');
+    
+    // get the number (of changesets or of modified lines for each contributor)
+    int number;
+    istringstream(line.substr(last_space+1)) >> number;
+
+    // get the name of the contributor
+    line.erase(last_space);    
+    string name = contributor_name(line);
+    
+    map<string,int>::iterator it = contributors_map.find(name);
+    // if new contributor, insert
+    if(it == contributors_map.end())
+      contributors_map.insert(pair<string,int>(name, number));
+    // if duplicate, just add the number
+    else
+      it->second += number;
+  }
+  churn_out.close();
+
+  return contributors_map;
+}
+
+// find the last name, i.e. the last word.
+// for "van den Schbling" types of last names, that's not a problem, that's actually what we want.
+string lastname(const string& name)
+{
+  size_t last_space = name.find_last_of(' ');
+  if(last_space >= name.length()-1) return name;
+  else return name.substr(last_space+1);
+}
+
+struct contributor
+{
+  string name;
+  int changedlines;
+  int changesets;
+  string url;
+  string misc;
+  
+  contributor() : changedlines(0), changesets(0) {}
+  
+  bool operator < (const contributor& other)
+  {
+    return lastname(name).compare(lastname(other.name)) < 0;
+  }
+};
+
+void add_online_info_into_contributors_list(list<contributor>& contributors_list, const char *filename)
+{
+  string line;
+  ifstream online_info;
+  online_info.open(filename, ios::in);
+  while(!getline(online_info,line).eof())
+  {
+    string hgname, realname, url, misc;
+    
+    size_t last_bar = line.find_last_of('|');
+    if(last_bar == string::npos) continue;
+    if(last_bar < line.length())
+      misc = line.substr(last_bar+1);
+    line.erase(last_bar);
+    
+    last_bar = line.find_last_of('|');
+    if(last_bar == string::npos) continue;
+    if(last_bar < line.length())
+      url = line.substr(last_bar+1);
+    line.erase(last_bar);
+
+    last_bar = line.find_last_of('|');
+    if(last_bar == string::npos) continue;
+    if(last_bar < line.length())
+      realname = line.substr(last_bar+1);
+    line.erase(last_bar);
+
+    hgname = line;
+    
+    // remove the example line
+    if(hgname.find("MercurialName") != string::npos) continue;
+    
+    list<contributor>::iterator it;
+    for(it=contributors_list.begin(); it != contributors_list.end() && it->name != hgname; ++it)
+    {}
+    
+    if(it == contributors_list.end())
+    {
+      contributor c;
+      c.name = realname;
+      c.url = url;
+      c.misc = misc;
+      contributors_list.push_back(c);
+    }
+    else
+    {
+      it->name = realname;
+      it->url = url;
+      it->misc = misc;
+    }
+  }
+}
+
+int main()
+{
+  // parse the hg churn output files
+  map<string,int> contributors_map_for_changedlines = contributors_map_from_churn_output("churn-changedlines.out");
+  //map<string,int> contributors_map_for_changesets = contributors_map_from_churn_output("churn-changesets.out");
+  
+  // merge into the contributors list
+  list<contributor> contributors_list;
+  map<string,int>::iterator it;
+  for(it=contributors_map_for_changedlines.begin(); it != contributors_map_for_changedlines.end(); ++it)
+  {
+    contributor c;
+    c.name = it->first;
+    c.changedlines = it->second;
+    c.changesets = 0; //contributors_map_for_changesets.find(it->first)->second;
+    contributors_list.push_back(c);
+  }
+  
+  add_online_info_into_contributors_list(contributors_list, "online-info.out");
+  
+  contributors_list.sort();
+  
+  cout << "{| cellpadding=\"5\"\n";
+  cout << "!\n";
+  cout << "! Lines changed\n";
+  cout << "!\n";
+
+  list<contributor>::iterator itc;
+  int i = 0;
+  for(itc=contributors_list.begin(); itc != contributors_list.end(); ++itc)
+  {
+    if(itc->name.length() == 0) continue;
+    if(i%2) cout << "|-\n";
+    else cout << "|- style=\"background:#FFFFD0\"\n";
+    if(itc->url.length())
+      cout << "| [" << itc->url << " " << itc->name << "]\n";
+    else
+      cout << "| " << itc->name << "\n";
+    if(itc->changedlines)
+      cout << "| " << itc->changedlines << "\n";
+    else
+      cout << "| (no information)\n";
+    cout << "| " << itc->misc << "\n";
+    i++;
+  }
+  cout << "|}" << endl;
+}