srctree

load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")

 

cc_library(

name = "os",

srcs = select({

"@platforms//os:linux": ["linux.cpp"],

"@platforms//os:windows": ["windows.cpp"],

}),

hdrs = ["os.h"],

linkopts = select({

"@platforms//os:linux": [],

"@platforms//os:windows": [

"-DEFAULTLIB:Kernel32",

"-DEFAULTLIB:Ole32",

"-DEFAULTLIB:Shell32",

],

}),

visibility = ["//visibility:public"],

)

 

cc_test(

name = "os_test",

size = "small",

srcs = ["os_test.cpp"],

deps = [

":os",

"//etest",

],

)

#include "os/os.h"

 

#include <cstdlib>

 

using namespace std::literals;

 

namespace os {

 

std::vector<std::string> font_paths() {

std::vector<std::string> paths{};

if (char const *xdg_data_home = std::getenv("XDG_DATA_HOME")) {

paths.push_back(xdg_data_home + "/fonts"s);

}

 

if (char const *home = std::getenv("HOME")) {

if (paths.empty()) {

paths.push_back(home + "/.local/share/fonts"s);

}

paths.push_back(home + "/.fonts"s);

}

 

paths.push_back("/usr/share/fonts"s);

paths.push_back("/usr/local/share/fonts"s);

return paths;

}

 

} // namespace os

#ifndef OS_OS_H_

#define OS_OS_H_

 

#include <string>

#include <vector>

 

namespace os {

 

std::vector<std::string> font_paths();

 

} // namespace os

 

#endif

#include "os/os.h"

 

#include "etest/etest.h"

 

using etest::expect;

 

int main() {

etest::test("font_paths", [] {

auto font_paths = os::font_paths();

expect(!font_paths.empty());

});

 

return etest::run_all_tests();

}

#include "os/os.h"

 

// Must be included first because Windows headers don't include what they use.

#include <Windows.h>

 

#include <Knownfolders.h>

#include <Objbase.h>

#include <Shlobj.h>

 

namespace os {

 

std::vector<std::string> font_paths() {

PWSTR bad_font_path{nullptr};

SHGetKnownFolderPath(FOLDERID_Fonts, 0, NULL, &bad_font_path);

auto chars_needed = WideCharToMultiByte(CP_UTF8, 0, bad_font_path, -1, nullptr, 0, NULL, NULL);

std::string font_path;

font_path.resize(chars_needed);

WideCharToMultiByte(CP_UTF8, 0, bad_font_path, -1, font_path.data(), chars_needed, NULL, NULL);

CoTaskMemFree(bad_font_path);

return {font_path};

}

 

} // namespace os