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	Project CMSSW displayed by LXR CMSSW_13_0_X_2023-02-02-2300/​PhysicsTools/​FWLite/​src/​CommandLineParser.cc	Source navigation Diff markup Identifier search General search
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File indexing completed on 2021-02-14 13:32:23

 // -*- C++ -*-
 #include <iostream>
 #include <fstream>
 #include <iomanip>
 #include <cstdlib>
 #include <cassert>
 
 #include "TString.h"
 
 #include "PhysicsTools/FWLite/interface/CommandLineParser.h"
 #include "PhysicsTools/FWLite/interface/dout.h"
 #include "PhysicsTools/FWLite/interface/dumpSTL.icc"
 
 using namespace std;
 using namespace optutl;
 
 const std::string CommandLineParser::kSpaces = " \t";
 
 CommandLineParser::CommandLineParser(const string &usage, unsigned int optionsType)
     : m_argv0(""), m_usageString(usage), m_printOptions(true), m_optionsType(optionsType) {
   if (m_optionsType & kEventContOpt) {
     // Integer options
     addOption("totalSections", kInteger, "Total number of sections", 0);
     addOption("section", kInteger, "This section (from 1..totalSections inclusive)", 0);
     addOption("maxEvents", kInteger, "Maximum number of events to run over (0 for whole file)", 0);
     addOption("jobID", kInteger, "jobID given by CRAB,etc. (-1 means append nothing)", -1);
     addOption("outputEvery", kInteger, "Output something once every N events (0 for never)", 0);
     // String options
     addOption("outputFile", kString, "Output filename", "output.root");
     addOption("storePrepend", kString, "Prepend location on files starting with '/store/'");
     addOption("tag", kString, "A 'tag' to append to output file (e.g., 'v2', etc.)");
     // Bool options
     addOption("logName", kBool, "Print log name and exit");
     // String vector options
     addOption("inputFiles", kStringVector, "List of input files");
     addOption("secondaryInputFiles", kStringVector, "List of secondary input files (a.k.a. two-file-solution");
     addOption("orderedSecondaryFiles", kBool, "Are the secondary files ordered?", false);
     return;
   }
   // If we're still here, we have a type I don't understand.
   cerr << "CommandLineParser() Error: type '" << optionsType << "' is not understood.  Aborting." << endl;
   assert(0);
 }
 
 void CommandLineParser::parseArguments(int argc, char **argv, bool returnArgs) {
   bool callHelp = false;
   SVec argsVec;
   m_argv0 = argv[0];
   m_fullArgVec.push_back(argv[0]);
   for (int loop = 1; loop < argc; ++loop) {
     string arg = argv[loop];
     m_fullArgVec.push_back(arg);
     string::size_type where = arg.find_first_of('=');
     if (string::npos != where) {
       if (_setVariableFromString(arg)) {
         continue;
       }
       if (_runVariableCommandFromString(arg)) {
         continue;
       }
       cerr << "Don't understand: " << arg << endl;
       exit(0);
     }  // tag=value strings
     else if (arg.at(0) == '-') {
       string::size_type where = arg.find_first_not_of('-');
       if (string::npos == where) {
         // a poorly formed option
         cerr << "Don't understand: " << arg << endl;
         exit(0);
         continue;
       }
       lowercaseString(arg);
       char first = arg.at(where);
       // Print the values
       if ('p' == first) {
         m_printOptions = true;
         continue;
       }
       if ('n' == first) {
         m_printOptions = false;
         continue;
       }
       // Exit after printing values
       if ('h' == first) {
         callHelp = true;
         continue;
       }
       // if we're still here, then we've got a problem.
       cerr << "Don't understand: " << arg << endl;
       exit(0);
     }  // -arg strings
     if (returnArgs) {
       argsVec.push_back(arg);
     } else {
       cerr << "Don't understand: " << arg << endl;
       exit(0);
     }
   }  // for loop
   if (callHelp) {
     help();
   }
 }
 
 void CommandLineParser::help() {
   if (m_usageString.length()) {
     cout << m_argv0 << " - " << m_usageString << endl;
   }
   cout << "--help    - This screen" << endl
        << "--noPrint - Do not print out all settings" << endl
        << "--print   - Print out all settings" << endl;
   printOptionValues();
   exit(0);
 }
 
 void CommandLineParser::split(SVec &retval, string line, string match, bool ignoreComments) {
   if (ignoreComments) {
     removeComment(line);
   }  // if ignoreComments
   retval.clear();
   // find the first non-space
   string::size_type start1 = line.find_first_not_of(kSpaces);
   // Is the first non-space character a '#'
   char firstCh = line[start1];
   if ('#' == firstCh) {
     // this line is a comment
     return;
   }
 
   line += match;  // get last word of line
   string::size_type last = string::npos;
   string::size_type current = line.find_first_of(match);
   while (string::npos != current) {
     string::size_type pos;
     if (string::npos != last) {
       pos = last + 1;
     } else {
       pos = 0;
     }
     string part = line.substr(pos, current - last - 1);
     // don't bother adding 0 length strings
     if (part.length()) {
       retval.push_back(part);
     }
     last = current;
     current = line.find_first_of(match, current + 1);
   }  // while we're finding spaces
 }
 
 void CommandLineParser::removeComment(string &line) {
   string::size_type location = line.find('#');
   if (string::npos != location) {
     // we've got a comment.  Strip it out
     line = line.substr(0, location - 1);
   }  // if found
 }
 
 void CommandLineParser::removeLeadingAndTrailingSpaces(std::string &line) {
   string::size_type pos = line.find_first_not_of(kSpaces);
   if (string::npos == pos) {
     // we don't have anything here at all.  Just quit now
     return;
   }
   if (pos) {
     // We have spaces at the beginning.
     line = line.substr(pos);
   }
   pos = line.find_last_not_of(kSpaces);
   if (pos + 1 != line.length()) {
     // we've got spaces at the end
     line = line.substr(0, pos + 1);
   }
 }
 
 string CommandLineParser::removeEnding(const string &input, const string &ending) {
   string::size_type position = input.rfind(ending);
   if (input.length() - ending.length() == position) {
     // we've got it
     return input.substr(0, position);
   }
   // If we're still here, it wasn't there
   return input;
 }
 
 void CommandLineParser::findCommand(const string &line, string &command, string &rest) {
   command = rest = "";
   string::size_type nonspace = line.find_first_not_of(kSpaces);
   if (string::npos == nonspace) {
     // we don't have anything here at all.  Just quit now
     return;
   }
   string::size_type space = line.find_first_of(kSpaces, nonspace);
   if (string::npos == space) {
     // we only have a command and nothing else
     command = line.substr(nonspace);
     return;
   }
   command = line.substr(nonspace, space - nonspace);
   rest = line.substr(space + 1);
   removeLeadingAndTrailingSpaces(rest);
 }
 
 void CommandLineParser::printOptionValues() {
   cout << "------------------------------------------------------------------" << left << endl;
   // Print the integers next
   if (!m_integerMap.empty()) {
     cout << endl << "Integer options:" << endl;
   }
   for (SIMapConstIter iter = m_integerMap.begin(); m_integerMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = " << setw(14) << iter->second;
     if (description.length()) {
       cout << " - " << description;
     }
     cout << endl;
   }  // for iter
 
   // Print the doubles next
   if (!m_doubleMap.empty()) {
     cout << endl << "Double options:" << endl;
   }
   for (SDMapConstIter iter = m_doubleMap.begin(); m_doubleMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = " << setw(14) << iter->second;
     if (description.length()) {
       cout << " - " << description;
     }
     cout << endl;
   }  // for iter
 
   // Print the bools first
   if (!m_boolMap.empty()) {
     cout << endl << "Bool options:" << endl;
   }
   for (SBMapConstIter iter = m_boolMap.begin(); m_boolMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = " << setw(14);
     if (iter->second) {
       cout << "true";
     } else {
       cout << "false";
     }
     if (description.length()) {
       cout << " - " << description;
     }
     cout << endl;
   }  // for iter
 
   // Print the strings next
   if (!m_stringMap.empty()) {
     cout << endl << "String options:" << endl;
   }
   for (SSMapConstIter iter = m_stringMap.begin(); m_stringMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = ";
     const string value = "'" + iter->second + "'";
     cout << setw(14) << "";
     if (description.length()) {
       cout << " - " << description;
     }
     cout << endl << "        " << value << endl;
   }  // for iter
 
   // Integer Vec
   if (!m_integerVecMap.empty()) {
     cout << endl << "Integer Vector options:" << endl;
   }
   for (SIVecMapConstIter iter = m_integerVecMap.begin(); m_integerVecMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = ";
     dumpSTL(iter->second);
     cout << endl;
     if (description.length()) {
       cout << "      - " << description;
     }
     cout << endl;
   }  // for iter
 
   // Double Vec
   if (!m_doubleVecMap.empty()) {
     cout << endl << "Double Vector options:" << endl;
   }
   for (SDVecMapConstIter iter = m_doubleVecMap.begin(); m_doubleVecMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = ";
     dumpSTL(iter->second);
     cout << endl;
     if (description.length()) {
       cout << "      - " << description;
     }
     cout << endl;
   }  // for iter
 
   // String Vec
   if (!m_stringVecMap.empty()) {
     cout << endl << "String Vector options:" << endl;
   } else {
     cout << endl;
   }
   for (SSVecMapConstIter iter = m_stringVecMap.begin(); m_stringVecMap.end() != iter; ++iter) {
     const string &description = m_variableDescriptionMap[iter->first];
     cout << "    " << setw(14) << iter->first << " = ";
     if (description.length()) {
       cout << setw(14) << ""
            << " - " << description;
     }
     cout << endl;
     dumpSTLeachEndl(iter->second, 8);
   }  // for iter
 
   cout << "------------------------------------------------------------------" << right << endl;
 }
 
 bool CommandLineParser::_setVariableFromString(const string &arg, bool dontOverrideChange, int offset) {
   string::size_type where = arg.find_first_of('=', offset + 1);
   string varname = arg.substr(offset, where - offset);
   string value = arg.substr(where + 1);
   lowercaseString(varname);
   // check to make sure this is a valid option
   SBMapConstIter sbiter = m_variableModifiedMap.find(varname);
   if (m_variableModifiedMap.end() == sbiter) {
     // Not found.  Not a valid option
     return false;
   }
   // if 'dontOverrideChange' is set, then we are being asked to NOT
   // change any variables that have already been changed.
   if (dontOverrideChange && _valueHasBeenModified(varname)) {
     // don't go any further
     return true;
   }
   // integers
   SIMapIter integerIter = m_integerMap.find(varname);
   if (m_integerMap.end() != integerIter) {
     // we found it
     // use 'atof' instead of 'atoi' to get scientific notation
     integerIter->second = (int)atof(value.c_str());
     m_variableModifiedMap[varname] = true;
     return true;
   }
   // double
   SDMapIter doubleIter = m_doubleMap.find(varname);
   if (m_doubleMap.end() != doubleIter) {
     // we found it
     doubleIter->second = atof(value.c_str());
     m_variableModifiedMap[varname] = true;
     return true;
   }
   // string
   SSMapIter stringIter = m_stringMap.find(varname);
   if (m_stringMap.end() != stringIter) {
     // we found it
     stringIter->second = value;
     m_variableModifiedMap[varname] = true;
     return true;
   }
   // bool
   SBMapIter boolIter = m_boolMap.find(varname);
   if (m_boolMap.end() != boolIter) {
     // we found it
     boolIter->second = 0 != atoi(value.c_str());
     m_variableModifiedMap[varname] = true;
     return true;
   }
   // IntegerVec
   SIVecMapIter integerVecIter = m_integerVecMap.find(varname);
   if (m_integerVecMap.end() != integerVecIter) {
     // we found it
     SVec words;
     split(words, value, ",");
     for (SVecConstIter wordIter = words.begin(); words.end() != wordIter; ++wordIter) {
       integerVecIter->second.push_back((int)atof(wordIter->c_str()));
     }
     // we don't want to mark this as modified because we can add
     // many values to this
     // m_variableModifiedMap[varname] = true;
     return true;
   }
   // DoubleVec
   SDVecMapIter doubleVecIter = m_doubleVecMap.find(varname);
   if (m_doubleVecMap.end() != doubleVecIter) {
     // we found it
     SVec words;
     split(words, value, ",");
     for (SVecConstIter wordIter = words.begin(); words.end() != wordIter; ++wordIter) {
       doubleVecIter->second.push_back(atof(wordIter->c_str()));
     }
     // we don't want to mark this as modified because we can add
     // many values to this
     // m_variableModifiedMap[varname] = true;
     return true;
   }
   // StringVec
   SSVecMapIter stringVecIter = m_stringVecMap.find(varname);
   if (m_stringVecMap.end() != stringVecIter) {
     // we found it
     SVec words;
     split(words, value, ",");
     for (SVecConstIter wordIter = words.begin(); words.end() != wordIter; ++wordIter) {
       stringVecIter->second.push_back(*wordIter);
     }
     // we don't want to mark this as modified because we can add
     // many values to this
     // m_variableModifiedMap[varname] = true;
     return true;
   }
   // We didn't find your variable.  And we really shouldn't be here
   // because we should have know that we didn't find your variable.
   cerr << "CommandLineParser::SetVeriableFromString() Error: "
        << "Unknown variable and internal fault.  Aborting." << endl;
   assert(0);
   return false;
 }
 
 bool CommandLineParser::_setVariablesFromFile(const string &filename) {
   ifstream source(filename.c_str(), ios::in);
   if (!source) {
     cerr << "file " << filename << "could not be opened" << endl;
     return false;
   }
   string line;
   while (getline(source, line)) {
     // find the first nonspace
     string::size_type where = line.find_first_not_of(kSpaces);
     if (string::npos == where) {
       // no non-spaces
       continue;
     }
     char first = line.at(where);
     if ('-' != first) {
       continue;
     }
     where = line.find_first_not_of(kSpaces, where + 1);
     if (string::npos == where) {
       // no non-spaces
       continue;
     }
     // Get string starting at first nonspace after '-'.  Copy it to
     // another string without copying any spaces and stopping at the
     // first '#'.
     string withspaces = line.substr(where);
     string nospaces;
     for (int position = 0; position < (int)withspaces.length(); ++position) {
       char ch = withspaces[position];
       if ('#' == ch) {
         // start of a comment
         break;
       } else if (' ' == ch || '\t' == ch) {
         continue;
       }
       nospaces += ch;
     }  // for position
     if (!_setVariableFromString(nospaces, true)) {
       cerr << "Don't understand line" << endl
            << line << endl
            << "in options file '" << filename << "'.  Aborting." << endl;
       exit(0);
     }  // if setting variable failed
   }    // while getline
   return true;
 }
 
 bool CommandLineParser::_runVariableCommandFromString(const string &arg) {
   SVec equalWords;
   split(equalWords, arg, "=");
   if (2 != equalWords.size()) {
     return false;
   }
   SVec commandWords;
   split(commandWords, equalWords.at(0), "_");
   if (2 != commandWords.size()) {
     return false;
   }
   string &command = commandWords.at(1);
   lowercaseString(command);
   if (command != "load" && command != "clear") {
     return false;
   }
   const string &key = commandWords.at(0);
   OptionType type = hasOption(key);
   if (type < kIntegerVector || type > kStringVector) {
     cerr << "Command '" << command << "' only works on vectors." << endl;
     return false;
   }
 
   ///////////
   // Clear //
   ///////////
   if ("clear" == command) {
     if (kIntegerVector == type) {
       integerVector(key).clear();
     } else if (kDoubleVector == type) {
       doubleVector(key).clear();
     } else if (kStringVector == type) {
       stringVector(key).clear();
     } else {
       // If we're here, then I made a coding mistake and want to
       // know about it.
       assert(0);
     }
     return true;
   }
 
   //////////
   // Load //
   //////////
   const string &filename = equalWords.at(1);
   ifstream source(filename.c_str(), ios::in);
   if (!source) {
     cerr << "file " << filename << "could not be opened" << endl;
     return false;
   }
   string line;
   while (getline(source, line)) {
     // find the first nonspace
     string::size_type where = line.find_first_not_of(kSpaces);
     if (string::npos == where) {
       // no non-spaces
       continue;
     }
     // get rid of leading spaces
     line = line.substr(where);
     // get rid of trailing spaces
     where = line.find_last_not_of(kSpaces);
     if (line.length() - 1 != where) {
       line = line.substr(0, where + 1);
     }
     if ('#' == line.at(0)) {
       // this is a comment line, ignore it
       continue;
     }
     if (kIntegerVector == type) {
       integerVector(key).push_back((int)atof(line.c_str()));
     } else if (kDoubleVector == type) {
       doubleVector(key).push_back(atof(line.c_str()));
     } else if (kStringVector == type) {
       stringVector(key).push_back(line);
     } else {
       // If we're here, then I made a coding mistake and want to
       // know about it.
       assert(0);
     }
   }  // while getline
   return true;
 }
 
 void CommandLineParser::_getSectionFiles(const SVec &inputList, SVec &outputList, int section, int totalSections) {
   // Make sure the segment numbers make sense
   assert(section > 0 && section <= totalSections);
 
   // The Perl code:
   // my $entries    = @list;
   // my $perSection = int ($entries / $totalSections);
   // my $extra      = $entries % $totalSections;
   // --$section; # we want 0..n-1 not 1..n
   // my $start = $perSection * $section;
   // my $num   = $perSection - 1;
   // if ($section < $extra) {
   //    $start += $section;
   //    ++$num;
   // } else {
   //    $start += $extra;
   // };
   // my $end = $start + $num;
   int entries = (int)inputList.size();
   int perSection = entries / totalSections;
   int extra = entries % totalSections;
   --section;  // we want 0..n-1, not 1..n.
   int current = perSection * section;
   int num = perSection - 1;
   if (section < extra) {
     current += section;
     ++num;
   } else {
     current += extra;
   }
   outputList.clear();
   // we want to go from 0 to num inclusive, so make sure we have '<='
   // and not '='
   for (int loop = current; loop <= current + num; ++loop) {
     outputList.push_back(inputList.at(loop));
   }  // for loop
 }
 
 void CommandLineParser::_finishDefaultOptions(std::string tag) {
   if (!(m_optionsType & kEventContOpt)) {
     // nothing to see here, folks
     return;
   }
   ////////////////////////
   // Deal with sections //
   ////////////////////////
   if (integerValue("totalSections")) {
     // we have a request to break this into sections.  First, note
     // this in the output file
     tag += Form("_sec%03d", integerValue("section"));
     SVec tempVec;
     _getSectionFiles(stringVector("inputFiles"), tempVec, integerValue("section"), integerValue("totalSections"));
     stringVector("inputFiles") = tempVec;
   }  // if section requested
 
   //////////////////////
   // Store lfn to pfn //
   //////////////////////
   const string &kStorePrepend = stringValue("storePrepend");
   if (kStorePrepend.length()) {
     string match = "/store/";
     int matchLen = match.length();
     SVec tempVec;
     SVec &currentFiles = stringVector("inputFiles");
     for (SVecConstIter iter = currentFiles.begin(); currentFiles.end() != iter; ++iter) {
       const string &filename = *iter;
       if ((int)filename.length() > matchLen && filename.substr(0, matchLen) == match) {
         tempVec.push_back(kStorePrepend + filename);
       } else {
         tempVec.push_back(filename);
       }
     }
     currentFiles = tempVec;
   }  // if storePrepend.
 
   //////////////////////////////////
   // //////////////////////////// //
   // // Modify output filename // //
   // //////////////////////////// //
   //////////////////////////////////
   string outputFile = stringValue("outputFile");
   bool modifyOutputFile = (outputFile.length());
   outputFile = removeEnding(outputFile, ".root");
   outputFile += tag;
   if (integerValue("maxEvents")) {
     outputFile += Form("_maxevt%03d", integerValue("maxEvents"));
   }
   if (integerValue("jobID") >= 0) {
     outputFile += Form("_jobID%03d", integerValue("jobID"));
   }
   if (stringValue("tag").length()) {
     outputFile += "_" + stringValue("tag");
   }
 
   /////////////////////////////////
   // Log File Name, if requested //
   /////////////////////////////////
   if (boolValue("logName")) {
     cout << outputFile << ".log" << endl;
     exit(0);
   }
   outputFile += ".root";
   if (modifyOutputFile) {
     stringValue("outputFile") = outputFile;
   }
 
   // finally, if they asked us to print all options, let's do so
   // after we've modified all variables appropriately
   if (m_printOptions) {
     printOptionValues();
   }  // if printOptions
 }
 
 // friends
 ostream &operator<<(ostream &o_stream, const CommandLineParser &rhs) { return o_stream; }

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