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#include <cstring>
#include "Ninja.hpp"
#include "../../include/FileUtil.hpp"
#include "../../include/Exec.hpp"
#include "../../include/PkgConfig.hpp"
#include "../../include/GlobalLib.hpp"
using namespace std;
using namespace sibs;
namespace backend
{
string join(const vector<string> &list, const char *joinStr)
{
if(list.empty()) return "";
string result;
long stringSize = 0;
long joinStrLen = strlen(joinStr);
int i = 0;
for(const string &str : list)
{
stringSize += str.size();
if(!str.empty() && i > 0)
stringSize += joinStrLen;
++i;
}
result.reserve(stringSize);
i = 0;
for(const string &str : list)
{
if(i > 0);
result += joinStr;
result += str;
++i;
}
return move(result);
}
Ninja::Ninja(LibraryType _libraryType) :
libraryType(_libraryType)
{
}
void Ninja::addSourceFile(const char *filepath)
{
if(filepath && !containsSourceFile(filepath))
sourceFiles.emplace_back(filepath);
}
bool Ninja::containsSourceFile(const char *filepath) const
{
for(const string &sourceFile : sourceFiles)
{
if(sourceFile == filepath)
return true;
}
return false;
}
Result<bool> validatePkgConfigPackageVersionExists(const Dependency &dependency)
{
Result<bool> dependencyValidationResult = PkgConfig::validatePackageExists(dependency.name);
if(dependencyValidationResult.isErr())
return Result<bool>::Err(dependencyValidationResult.getErrMsg());
Result<bool> dependencyVersionValidationResult = PkgConfig::validatePackageVersionAtLeast(dependency.name, dependency.version);
if(dependencyVersionValidationResult.isErr())
return Result<bool>::Err(dependencyVersionValidationResult.getErrMsg());
return Result<bool>::Ok(true);
}
// TODO: First check if pkg-config is installed. If it's not, only check dependencies that exists in the dependencies sub directory.
// If pkg-config is installed and dependency is not installed, check in dependencies sub directory.
Result<string> Ninja::getLinkerFlags(const vector<Dependency> &dependencies) const
{
if(dependencies.empty()) return Result<string>::Ok("");
// TODO: Global library dir should be created during sibs installation
string globalLibDir = getHomeDir();
globalLibDir += "/.sibs/lib";
string globalLibLinkerFlags;
vector<string> pkgConfigDependencies;
for(const sibs::Dependency &dependency : dependencies)
{
Result<bool> pkgConfigDependencyValidation = validatePkgConfigPackageVersionExists(dependency);
if(pkgConfigDependencyValidation.isOk())
{
pkgConfigDependencies.push_back(dependency.name);
}
else
{
printf("%s, trying global lib\n", pkgConfigDependencyValidation.getErrMsg().c_str());
Result<string> globalLibLinkerFlagsResult = GlobalLib::getDynamicLibsLinkerFlags(globalLibDir, dependency.name, dependency.version);
if(globalLibLinkerFlagsResult.isErr())
return globalLibLinkerFlagsResult;
globalLibLinkerFlags += " ";
globalLibLinkerFlags += globalLibLinkerFlagsResult.unwrap();
// TODO: If package doesn't exist, download it from github/server
}
}
Result<string> pkgConfigLinkerFlagsResult = PkgConfig::getDynamicLibsLinkerFlags(pkgConfigDependencies);
if(pkgConfigLinkerFlagsResult.isErr())
return pkgConfigLinkerFlagsResult;
string allLinkerFlags = pkgConfigLinkerFlagsResult.unwrap();
allLinkerFlags += globalLibLinkerFlags;
return Result<string>::Ok(allLinkerFlags);
}
Result<bool> Ninja::createBuildFile(const std::string &packageName, const vector<Dependency> &dependencies, const char *savePath)
{
if(sourceFiles.empty())
return Result<bool>::Err("No source files provided");
string ninjaBuildFilePath = savePath;
ninjaBuildFilePath += "/build.ninja";
string result;
result.reserve(16384);
result += "cflags = -Wall -Werror\n\n";
result += "rule cpp_COMPILER\n";
result += " command = ccache c++ $ARGS -c $in -o $out\n\n";
string linkerJob;
switch(libraryType)
{
case LibraryType::EXECUTABLE:
{
result += "rule cpp_EXEC_LINKER\n";
result += " command = ccache c++ $ARGS -o $out $in $LINK_ARGS $aliasing\n\n";
linkerJob = "cpp_EXEC_LINKER";
break;
}
case LibraryType::STATIC:
{
result += "rule cpp_STATIC_LINKER\n";
result += " command = ar rcs lib";
result += packageName;
result += ".a";
result += " $in\n\n";
linkerJob = "cpp_STATIC_LINKER";
break;
}
default:
assert(false);
return Result<bool>::Err("NOT IMPLEMENTED YET!");
}
vector<string> objectNames;
for(const string &sourceFile : sourceFiles)
{
//string sourceFileEncoded = sourceFile;
//replace(sourceFileEncoded, '/', '@');
string objectName = packageName + "@exe/" + sourceFile + ".o";
result += "build ";
result += objectName;
result += ": cpp_COMPILER ../../";
result += sourceFile;
result += "\n";
// TODO: Create .deps directory if it doesn't exist. Should be a symlink to homedir/.sibs/lib
result += " ARGS = '-I../../.deps' '-I" + packageName + "@exe' '-I.' '-I..' '-fdiagnostics-color=always' '-pipe' '-D_FILE_OFFSET_BITS=64' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-O0' '-g'\n\n";
objectNames.emplace_back(objectName);
}
Result<string> linkerFlags = getLinkerFlags(dependencies);
if(linkerFlags.isErr())
return Result<bool>::Err(linkerFlags.getErrMsg());
result += "build ";
result += packageName;
result += ": " + linkerJob + " ";
result += join(objectNames, " ");
result += "\n";
result += " LINK_ARGS = '-Wl,--no-undefined' '-Wl,--as-needed' ";
result += linkerFlags.unwrap();
result += "\n\n";
bool fileOverwritten = sibs::fileOverwrite(ninjaBuildFilePath.c_str(), sibs::StringView(result.data(), result.size()));
if(!fileOverwritten)
{
string errMsg = "Failed to overwrite ninja build file: ";
errMsg += ninjaBuildFilePath;
return Result<bool>::Err(errMsg);
}
printf("Created ninja build file: %s\n", ninjaBuildFilePath.c_str());
return Result<bool>::Ok(true);
}
Result<bool> Ninja::build(const char *buildFilePath)
{
string command = "ninja -C '";
command += buildFilePath;
command += "'";
Result<ExecResult> execResult = exec(command.c_str(), true);
if(execResult.isOk())
return Result<bool>::Ok(true);
else
return Result<bool>::Err(execResult.getErrMsg());
}
}
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