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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmTransformDepfile.h"
#include <string>
#include <type_traits>
#include <utility>
#include <vector>
#include <cm/optional>
#include "cmsys/FStream.hxx"
#include "cmGccDepfileReader.h"
#include "cmGccDepfileReaderTypes.h"
#include "cmSystemTools.h"
namespace {
void WriteFilenameGcc(cmsys::ofstream& fout, const std::string& filename)
{
for (auto c : filename) {
switch (c) {
case ' ':
fout << "\\ ";
break;
case '\\':
fout << "\\\\";
break;
default:
fout << c;
break;
}
}
}
void WriteGccDepfile(cmsys::ofstream& fout, const cmGccDepfileContent& content)
{
for (auto const& dep : content) {
bool first = true;
for (auto const& rule : dep.rules) {
if (!first) {
fout << " \\\n ";
}
first = false;
WriteFilenameGcc(fout, rule);
}
fout << ':';
for (auto const& path : dep.paths) {
fout << " \\\n ";
WriteFilenameGcc(fout, path);
}
fout << '\n';
}
}
void WriteVsTlog(cmsys::ofstream& fout, const cmGccDepfileContent& content)
{
for (auto const& dep : content) {
fout << '^';
bool first = true;
for (auto const& rule : dep.rules) {
if (!first) {
fout << '|';
}
first = false;
fout << cmSystemTools::ConvertToOutputPath(rule);
}
fout << "\r\n";
for (auto const& path : dep.paths) {
fout << cmSystemTools::ConvertToOutputPath(path) << "\r\n";
}
}
}
}
bool cmTransformDepfile(cmDepfileFormat format, const std::string& prefix,
const std::string& infile, const std::string& outfile)
{
cmGccDepfileContent content;
if (cmSystemTools::FileExists(infile)) {
auto result = cmReadGccDepfile(infile.c_str(), prefix);
if (!result) {
return false;
}
content = *std::move(result);
}
cmsys::ofstream fout(outfile.c_str());
if (!fout) {
return false;
}
switch (format) {
case cmDepfileFormat::GccDepfile:
WriteGccDepfile(fout, content);
break;
case cmDepfileFormat::VsTlog:
WriteVsTlog(fout, content);
break;
}
return true;
}
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