53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/**
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* @file FileWriter.cpp
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*
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* @date Jan 15, 2012
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* @author Alex Cunningham
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*/
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#include "FileWriter.h"
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#include "utilities.h"
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#include <fstream>
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#include <iostream>
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using namespace std;
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using namespace wrap;
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/* ************************************************************************* */
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FileWriter::FileWriter(const string& filename, bool verbose,
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const string& comment_str) :
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verbose_(verbose), filename_(filename), comment_str_(comment_str) {
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}
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/* ************************************************************************* */
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void FileWriter::emit(bool add_header, bool force_overwrite) const {
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if (verbose_)
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cerr << "generating " << filename_ << " ";
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// read in file if it exists
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string existing_contents;
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bool file_exists = true;
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try {
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existing_contents = file_contents(filename_.c_str(), add_header);
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} catch (const CantOpenFile& ) {
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file_exists = false;
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}
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// Only write a file if it is new, an update, or overwrite is forced
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string new_contents = oss.str();
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if (force_overwrite || !file_exists || existing_contents != new_contents) {
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// Binary to use LF line endings instead of CRLF
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ofstream ofs(filename_.c_str(), ios::binary);
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if (!ofs)
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throw CantOpenFile(filename_);
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// dump in stringstream
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ofs << new_contents;
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ofs.close();
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}
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if (verbose_)
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cerr << " ...no update" << endl;
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}
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/* ************************************************************************* */
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