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#include "../include/PkgConfig.hpp"
#include "../include/Exec.hpp"
#include "../include/Dependency.hpp"
#include "../include/VersionParser.hpp"
using namespace std;
static sibs::FileString pkgConfigPath = TINYDIR_STRING("pkg-config");
// TODO: Do not use pkg-config program. The same functionality can easily be achieved
// by reading files in /usr/share/pkgconfig
// Or is there no downside to calling pkg-config program?
namespace sibs
{
static string trimRight(const string &input)
{
for(int i = input.size() - 1; i >= 0; --i)
{
if(!isspace(input[i]))
return input.substr(0, i + 1);
}
return "";
}
void PkgConfig::setPkgConfigPath(const FileString &path)
{
pkgConfigPath = path;
}
Result<bool> PkgConfig::validatePkgConfigPackageVersionExists(const PackageListDependency &dependency)
{
Result<bool> dependencyValidationResult = PkgConfig::validatePackageExists(dependency.name);
if(dependencyValidationResult.isErr())
return Result<bool>::Err(dependencyValidationResult.getErrMsg());
Result<PackageVersion> dependencyVersionResult = PkgConfig::getPackageVersion(dependency.name);
if(!dependencyVersionResult)
return Result<bool>::Err(dependencyVersionResult);
if(!dependency.version.isInRange(dependencyVersionResult.unwrap()))
return Result<bool>::Err("pkg-config package " + dependency.name + " exists but the version does not match our expected version range");
return Result<bool>::Ok(true);
}
Result<bool> PkgConfig::validatePackageExists(const string &name)
{
Result<ExecResult> execResult = exec({ pkgConfigPath, TINYDIR_STRING("--exists"), TINYDIR_STRING("--"), toFileString(name) });
if(execResult.isErr())
return Result<bool>::Err(execResult.getErrMsg());
if(execResult.unwrap().exitCode == 1)
{
string errMsg = "pkg-config dependency not found: ";
errMsg += name;
return Result<bool>::Err(errMsg);
}
else if(execResult.unwrap().exitCode == 127)
{
return Result<bool>::Err("pkg-config is not installed");
}
else if(execResult.unwrap().exitCode != 0)
{
string errMsg = "Failed to check if dependency exists, Unknown error, exit code: ";
errMsg += to_string(execResult.unwrap().exitCode);
return Result<bool>::Err(errMsg);
}
return Result<bool>::Ok(true);
}
Result<PackageVersion> PkgConfig::getPackageVersion(const std::string &name)
{
Result<ExecResult> execResult = exec({ pkgConfigPath, TINYDIR_STRING("--modversion"), TINYDIR_STRING("--"), toFileString(name) });
if(!execResult)
return Result<PackageVersion>::Err(execResult.getErrMsg());
if(execResult.unwrap().exitCode == 1)
{
string errMsg = "Dependency ";
errMsg += name;
errMsg += " not found in pkg-config";
return Result<PackageVersion>::Err(errMsg);
}
else if(execResult.unwrap().exitCode == 127)
{
return Result<PackageVersion>::Err("pkg-config is not installed");
}
else if(execResult.unwrap().exitCode != 0)
{
string errMsg = "Failed to get pkg-config package version, Unknown error, exit code: ";
errMsg += to_string(execResult.unwrap().exitCode);
return Result<PackageVersion>::Err(errMsg);
}
// Intentionally allow packages which have a version that contains more data after patch number, since some pkg-config packages are not in semver format
return parsePackageVersion({ execResult.unwrap().execStdout.data(), execResult.unwrap().execStdout.size() }, nullptr);
}
Result<string> PkgConfig::getDynamicLibsLinkerFlags(const vector<PackageListDependency> &libs)
{
if(libs.empty()) return Result<string>::Ok("");
std::vector<FileString> args = { pkgConfigPath, TINYDIR_STRING("--libs"), TINYDIR_STRING("--") };
for(const PackageListDependency &lib : libs)
{
args.push_back(toFileString(lib.name));
}
Result<ExecResult> execResult = exec(args);
if(execResult.isErr())
return Result<string>::Err(execResult.getErrMsg());
if(execResult.unwrap().exitCode == 0)
{
execResult.unwrap().execStdout = trimRight(execResult.unwrap().execStdout);
return Result<string>::Ok(execResult.unwrap().execStdout);
}
else if(execResult.unwrap().exitCode == 1)
{
// TODO: This shouldn't happen because we check if each dependency is installed before this,
// but maybe the package is uninstalled somewhere between here...
// Would be better to recheck if each package is installed here again
// to know which package was uninstalled
return Result<string>::Err("Packages not found");
}
else if(execResult.unwrap().exitCode == 127)
{
return Result<string>::Err("pkg-config is not installed");
}
else
{
string errMsg = "Failed to get package dynamic lib linking flags, Unknown error, exit code: ";
errMsg += to_string(execResult.unwrap().exitCode);
return Result<string>::Err(errMsg);
}
}
Result<string> PkgConfig::getDynamicLibsCflags(const vector<PackageListDependency> &libs)
{
if(libs.empty()) return Result<string>::Ok("");
std::vector<FileString> args = { pkgConfigPath, TINYDIR_STRING("--cflags"), TINYDIR_STRING("--") };
for(const PackageListDependency &lib : libs)
{
args.push_back(toFileString(lib.name));
}
Result<ExecResult> execResult = exec(args);
if(execResult.isErr())
return Result<string>::Err(execResult.getErrMsg());
if(execResult.unwrap().exitCode == 0)
{
execResult.unwrap().execStdout = trimRight(execResult.unwrap().execStdout);
return Result<string>::Ok(execResult.unwrap().execStdout);
}
else if(execResult.unwrap().exitCode == 1)
{
// TODO: This shouldn't happen because we check if each dependency is installed before this,
// but maybe the package is uninstalled somewhere between here...
// Would be better to recheck if each package is installed here again
// to know which package was uninstalled
return Result<string>::Err("Packages not found");
}
else if(execResult.unwrap().exitCode == 127)
{
return Result<string>::Err("pkg-config is not installed");
}
else
{
string errMsg = "Failed to get package dynamic lib cflags, Unknown error, exit code: ";
errMsg += to_string(execResult.unwrap().exitCode);
return Result<string>::Err(errMsg);
}
}
Result<PkgConfigFlags> PkgConfig::getDynamicLibsFlags(const vector<PackageListDependency> &libs)
{
PkgConfigFlags flags;
Result<string> linkerFlagsResult = getDynamicLibsLinkerFlags(libs);
if(!linkerFlagsResult)
return Result<PkgConfigFlags>::Err(linkerFlagsResult);
Result<string> cflagsResult = getDynamicLibsCflags(libs);
if(!cflagsResult)
return Result<PkgConfigFlags>::Err(cflagsResult);
flags.linkerFlags = move(linkerFlagsResult.unwrap());
flags.cflags = move(cflagsResult.unwrap());
return Result<PkgConfigFlags>::Ok(flags);
}
}
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