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496 lines (377 loc) · 10.3 KB
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/**
*
* @file BuildOutputParser.cpp
* @author Gaspard Kirira
*
* Copyright 2025, Gaspard Kirira. All rights reserved.
* https://github.com/vixcpp/vix
* Use of this source code is governed by a MIT license
* that can be found in the License file.
*
* Vix.cpp
*
*/
#include <vix/cli/build/BuildOutputParser.hpp>
#include <charconv>
#include <cstddef>
#include <string>
#include <string_view>
#include <system_error>
#include <utility>
#include <vector>
namespace vix::cli::build
{
namespace
{
struct NinjaProgress
{
bool valid{false};
std::size_t current{0};
std::size_t total{0};
std::string_view action;
};
struct ObjectInfo
{
std::string target;
std::string file;
};
bool starts_with(
std::string_view text,
std::string_view prefix) noexcept
{
return text.size() >= prefix.size() &&
text.substr(0, prefix.size()) == prefix;
}
std::string_view trim_view(
std::string_view text) noexcept
{
while (!text.empty() &&
(text.front() == ' ' ||
text.front() == '\t' ||
text.front() == '\r' ||
text.front() == '\n'))
{
text.remove_prefix(1);
}
while (!text.empty() &&
(text.back() == ' ' ||
text.back() == '\t' ||
text.back() == '\r' ||
text.back() == '\n'))
{
text.remove_suffix(1);
}
return text;
}
bool parse_size(
std::string_view text,
std::size_t &value) noexcept
{
if (text.empty())
return false;
value = 0;
const char *begin = text.data();
const char *end = begin + text.size();
const auto result =
std::from_chars(begin, end, value);
return result.ec == std::errc{} &&
result.ptr == end;
}
NinjaProgress parse_ninja_progress(
std::string_view line) noexcept
{
NinjaProgress result;
line = trim_view(line);
if (line.empty() || line.front() != '[')
return result;
const std::size_t slash =
line.find('/');
if (slash == std::string_view::npos)
return result;
const std::size_t close =
line.find(']', slash + 1);
if (close == std::string_view::npos)
return result;
const std::string_view currentText =
line.substr(1, slash - 1);
const std::string_view totalText =
line.substr(
slash + 1,
close - slash - 1);
if (!parse_size(currentText, result.current) ||
!parse_size(totalText, result.total))
{
return result;
}
result.action =
trim_view(line.substr(close + 1));
result.valid = !result.action.empty();
return result;
}
std::string remove_object_suffix(
std::string value)
{
if (value.size() >= 4 &&
value.compare(
value.size() - 4,
4,
".obj") == 0)
{
value.erase(value.size() - 4);
return value;
}
if (value.size() >= 2 &&
value.compare(
value.size() - 2,
2,
".o") == 0)
{
value.erase(value.size() - 2);
}
return value;
}
ObjectInfo parse_object_info(
std::string_view value)
{
ObjectInfo result;
std::string objectPath(
trim_view(value));
if (objectPath.empty())
return result;
const std::string unixMarker =
"CMakeFiles/";
const std::string windowsMarker =
"CMakeFiles\\";
std::size_t cmakeFiles =
objectPath.find(unixMarker);
std::size_t markerSize =
unixMarker.size();
if (cmakeFiles == std::string::npos)
{
cmakeFiles =
objectPath.find(windowsMarker);
markerSize =
windowsMarker.size();
}
if (cmakeFiles == std::string::npos)
{
result.file =
remove_object_suffix(
std::move(objectPath));
return result;
}
const std::size_t targetStart =
cmakeFiles + markerSize;
std::size_t dirMarker =
objectPath.find(
".dir/",
targetStart);
std::size_t dirMarkerSize = 5;
if (dirMarker == std::string::npos)
{
dirMarker =
objectPath.find(
".dir\\",
targetStart);
dirMarkerSize = 5;
}
if (dirMarker == std::string::npos)
{
result.file =
remove_object_suffix(
std::move(objectPath));
return result;
}
result.target =
objectPath.substr(
targetStart,
dirMarker - targetStart);
const std::size_t sourceStart =
dirMarker + dirMarkerSize;
if (sourceStart < objectPath.size())
{
result.file =
remove_object_suffix(
objectPath.substr(sourceStart));
}
return result;
}
bool parse_compile_action(
std::string_view action,
std::string_view &objectPath) noexcept
{
constexpr std::string_view prefixes[] = {
"Building CXX object ",
"Building C object ",
"Building CUDA object ",
"Building OBJCXX object ",
"Building OBJC object "};
for (const std::string_view prefix : prefixes)
{
if (!starts_with(action, prefix))
continue;
objectPath =
trim_view(
action.substr(prefix.size()));
return true;
}
return false;
}
bool parse_link_action(
std::string_view action,
std::string_view &target) noexcept
{
constexpr std::string_view prefixes[] = {
"Linking CXX executable ",
"Linking C executable ",
"Linking CXX shared library ",
"Linking C shared library ",
"Linking CXX static library ",
"Linking C static library ",
"Linking CUDA executable ",
"Linking CUDA shared library ",
"Linking CUDA static library "};
for (const std::string_view prefix : prefixes)
{
if (!starts_with(action, prefix))
continue;
target =
trim_view(
action.substr(prefix.size()));
return true;
}
return false;
}
} // anonymous namespace
std::vector<BuildEvent>
BuildOutputParser::consume(
std::string_view line)
{
std::vector<BuildEvent> events;
line = trim_view(line);
if (line.empty())
return events;
// -----------------------------------------------------------------------
// CMake configure stage
// -----------------------------------------------------------------------
if (!configureFinished_ &&
(starts_with(line, "-- Configuring done") ||
starts_with(
line,
"-- Build files have been written to:")))
{
BuildEvent event;
event.kind =
BuildEventKind::ConfigureFinished;
event.message =
"CMake configuration completed";
events.push_back(
std::move(event));
configureFinished_ = true;
}
// -----------------------------------------------------------------------
// Ninja progress
// -----------------------------------------------------------------------
const NinjaProgress progress =
parse_ninja_progress(line);
if (!progress.valid)
return events;
// -----------------------------------------------------------------------
// Compile
// -----------------------------------------------------------------------
std::string_view objectPath;
if (parse_compile_action(
progress.action,
objectPath))
{
const ObjectInfo info =
parse_object_info(objectPath);
if (!compileStarted_)
{
BuildEvent started;
started.kind =
BuildEventKind::CompileStarted;
started.target =
info.target;
started.current =
progress.current;
started.total =
progress.total;
started.message =
"Compilation started";
events.push_back(
std::move(started));
compileStarted_ = true;
}
BuildEvent event;
event.kind =
BuildEventKind::CompileProgress;
event.target =
info.target;
event.file =
info.file;
event.message =
std::string(progress.action);
event.current =
progress.current;
event.total =
progress.total;
events.push_back(
std::move(event));
return events;
}
// -----------------------------------------------------------------------
// Link
// -----------------------------------------------------------------------
std::string_view linkTarget;
if (parse_link_action(
progress.action,
linkTarget))
{
if (compileStarted_ &&
!compileFinished_)
{
BuildEvent finished;
finished.kind =
BuildEventKind::CompileFinished;
finished.current =
progress.current > 0
? progress.current - 1
: 0;
finished.total =
progress.total;
finished.message =
"Compilation completed";
events.push_back(
std::move(finished));
compileFinished_ = true;
}
if (!linkStarted_)
{
BuildEvent event;
event.kind =
BuildEventKind::LinkStarted;
event.target =
std::string(linkTarget);
event.current =
progress.current;
event.total =
progress.total;
event.message =
std::string(progress.action);
events.push_back(
std::move(event));
linkStarted_ = true;
}
return events;
}
return events;
}
void BuildOutputParser::reset() noexcept
{
configureFinished_ = false;
compileStarted_ = false;
compileFinished_ = false;
linkStarted_ = false;
}
} // namespace vix::cli::build