CMake/Source/cmProcessTools.cxx
2019-01-11 20:48:19 -05:00

85 lines
2.4 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmProcessTools.h"
#include "cmProcessOutput.h"
#include "cmsys/Process.h"
#include <ostream>
void cmProcessTools::RunProcess(struct cmsysProcess_s* cp, OutputParser* out,
OutputParser* err, Encoding encoding)
{
cmsysProcess_Execute(cp);
char* data = nullptr;
int length = 0;
int p;
cmProcessOutput processOutput(encoding);
std::string strdata;
while ((out || err) &&
(p = cmsysProcess_WaitForData(cp, &data, &length, nullptr))) {
if (out && p == cmsysProcess_Pipe_STDOUT) {
processOutput.DecodeText(data, length, strdata, 1);
if (!out->Process(strdata.c_str(), int(strdata.size()))) {
out = nullptr;
}
} else if (err && p == cmsysProcess_Pipe_STDERR) {
processOutput.DecodeText(data, length, strdata, 2);
if (!err->Process(strdata.c_str(), int(strdata.size()))) {
err = nullptr;
}
}
}
if (out) {
processOutput.DecodeText(std::string(), strdata, 1);
if (!strdata.empty()) {
out->Process(strdata.c_str(), int(strdata.size()));
}
}
if (err) {
processOutput.DecodeText(std::string(), strdata, 2);
if (!strdata.empty()) {
err->Process(strdata.c_str(), int(strdata.size()));
}
}
cmsysProcess_WaitForExit(cp, nullptr);
}
cmProcessTools::LineParser::LineParser(char sep, bool ignoreCR)
: Separator(sep)
, IgnoreCR(ignoreCR)
{
}
void cmProcessTools::LineParser::SetLog(std::ostream* log, const char* prefix)
{
this->Log = log;
this->Prefix = prefix ? prefix : "";
}
bool cmProcessTools::LineParser::ProcessChunk(const char* first, int length)
{
const char* last = first + length;
for (const char* c = first; c != last; ++c) {
if (*c == this->Separator || *c == '\0') {
this->LineEnd = *c;
// Log this line.
if (this->Log && this->Prefix) {
*this->Log << this->Prefix << this->Line << "\n";
}
// Hand this line to the subclass implementation.
if (!this->ProcessLine()) {
this->Line.clear();
return false;
}
this->Line.clear();
} else if (*c != '\r' || !this->IgnoreCR) {
// Append this character to the line under construction.
this->Line.append(1, *c);
}
}
return true;
}