void bcp_implementation::scan_license(const fs::path& p, const fileview& v)
{
std::pair<const license_info*, int> licenses = get_licenses();
//
// scan file for all the licenses in the list:
//
int license_count = 0;
int author_count = 0;
int nonbsl_author_count = 0;
bool has_non_bsl_license = false;
fileview::const_iterator start_of_license = v.begin(),
end_of_license = v.end();
bool start_in_middle_of_line = false;
for(int i = 0; i < licenses.second; ++i)
{
boost::match_results<fileview::const_iterator> m;
if(boost::regex_search(v.begin(), v.end(), m, licenses.first[i].license_signature))
{
start_of_license = m[0].first;
end_of_license = m[0].second;
if (is_non_bsl_license(i) && i < licenses.second - 1)
has_non_bsl_license = true;
// add this license to the list:
m_license_data[i].files.insert(p);
++license_count;
//
// scan for the associated copyright declarations:
//
boost::regex_iterator<const char*> cpy(v.begin(), v.end(), licenses.first[i].copyright_signature);
boost::regex_iterator<const char*> ecpy;
while(cpy != ecpy)
{
#if 0
// Not dealing with copyrights because we don't have the years
if ((*cpy)[0].first < start_of_license)
start_of_license = (*cpy)[0].first;
if ((*cpy)[0].second > end_of_license)
end_of_license = (*cpy)[0].second;
#endif
// extract the copy holders as a list:
std::string author_list = cpy->format(licenses.first[i].copyright_formatter, boost::format_all);
// now enumerate that list for all the names:
static const boost::regex author_separator("(?:\\s*,(?!\\s*(?:inc|ltd)\\b)\\s*|\\s+(,\\s*)?(and|&)\\s+)|by\\s+", boost::regex::perl | boost::regex::icase);
boost::regex_token_iterator<std::string::const_iterator> atr(author_list.begin(), author_list.end(), author_separator, -1);
boost::regex_token_iterator<std::string::const_iterator> eatr;
while(atr != eatr)
{
// get the reformatted authors name:
std::string name = format_authors_name(*atr);
// add to list of authors for this file:
if(name.size() && name[0] != '-')
{
m_license_data[i].authors.insert(name);
// add file to author index:
m_author_data[name].insert(p);
++author_count;
// If this is not the Boost Software License (license 0), and the author hasn't given
// blanket permission, note this for the report.
if (has_non_bsl_license
&& m_bsl_authors.find(name) == m_bsl_authors.end()) {
++nonbsl_author_count;
m_authors_for_bsl_migration.insert(name);
}
}
++atr;
}
++cpy;
}
while (start_of_license != v.begin()
&& *start_of_license != '\r'
&& *start_of_license != '\n'
&& *start_of_license != '.')
--start_of_license;
if (start_of_license != v.begin()) {
if (*start_of_license == '.')
start_in_middle_of_line = true;
++start_of_license;
}
while (end_of_license != v.end()
&& *end_of_license != '\r'
&& *end_of_license != '\n')
++end_of_license;
}
}
if(license_count == 0)
m_unknown_licenses.insert(p);
if(license_count && !author_count)
m_unknown_authors.insert(p);
if (has_non_bsl_license) {
bool converted = false;
if (nonbsl_author_count == 0
&& license_count == 1) {
// Grab a few lines of context
fileview::const_iterator context_start =
context_before_license(v, start_of_license);
fileview::const_iterator context_end =
context_after_license(v, end_of_license);
// TBD: For files that aren't C++ code, this will have to
// change.
std::string prefix = find_prefix(v, start_of_license);
// Create enough information to permit manual verification of
// the correctness of the transformation
std::string before_conversion =
html_escape(context_start, start_of_license);
before_conversion += "<b>";
before_conversion += html_escape(start_of_license, end_of_license);
before_conversion += "</b>";
before_conversion += html_escape(end_of_license, context_end);
std::string after_conversion =
html_escape(context_start, start_of_license);
if (start_in_middle_of_line)
after_conversion += '\n';
after_conversion += "<b>";
for (int i = 0; i < boost_license_lines; ++i) {
if (i > 0) after_conversion += '\n';
after_conversion += prefix + boost_license_text[i];
}
after_conversion += "</b>";
after_conversion += html_escape(end_of_license, context_end);
m_converted_to_bsl[p] =
std::make_pair(before_conversion, after_conversion);
// Perform the actual conversion
if (m_bsl_convert_mode) {
try{
std::ofstream out((m_boost_path / p).native_file_string().c_str());
if (!out) {
std::string msg("Cannot open file for license conversion: ");
msg += p.native_file_string();
std::runtime_error e(msg);
boost::throw_exception(e);
}
out << std::string(v.begin(), start_of_license);
if (start_in_middle_of_line)
out << std::endl;
for (int j = 0; j < boost_license_lines; ++j) {
if (j > 0) out << std::endl;
out << prefix << boost_license_text[j];
}
out << std::string(end_of_license, v.end());
converted = true;
}
catch(const std::exception& e)
{
std::cerr << e.what() << std::endl;
}
}
}
if (!converted) {
if (nonbsl_author_count > 0) m_cannot_migrate_to_bsl.insert(p);
else m_can_migrate_to_bsl.insert(p);
}
}
}
