cpath/example.cpp at master · BraedonWooding/cpath · GitHub

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#include "cpath.h"

using namespace cpath;

#include <iostream>
#include <iomanip>

void recursive_visit(Dir &dir, int tab) {
    while (Opt<File, Error::Type> file = dir.GetNextFile()) {
        for (int i = 0; i < tab; i++) std::cout << '\t';
        ByteRep flags = BYTE_REP_JEDEC | BYTE_REP_BYTE_WORD;
        std::cout << "[" << (file->IsDir() ? 'D' : 'F') << "] "
                            << file->Name() << " " << std::fixed << std::setprecision(1)
                            << file->GetFileSizeDec(1024) << " "
                            << file->GetFileSizeSuffix(flags) << std::endl;
        if (file->IsDir() && !file->IsSpecialHardLink()) {
            Opt<Dir, Error::Type> dir = file->ToDir();
            recursive_visit(**dir, tab + 1);
            dir->Close();
        }
    }
}

void emplace(Dir &dir) {
    /*
    //     This method uses just one object and a few saved directories to iterate
    //     This is safe from stackoverflow but will require dynamic allocation
    // */
    int tab = 0;
    do {
        while (Opt<File, Error::Type> file = dir.GetNextFile()) {
            for (int i = 0; i < tab; i++) std::cout << '\t';
            ByteRep flags = BYTE_REP_JEDEC | BYTE_REP_BYTE_WORD;
            std::cout << "[" << (file->IsDir() ? 'D' : 'F') << "] "
                                << file->Name() << " " << std::fixed << std::setprecision(1)
                                << file->GetFileSizeDec(1024) << " "
                                << file->GetFileSizeSuffix(flags) << std::endl;
            if (file->IsDir() && !file->IsSpecialHardLink()) {
                dir.OpenSubFileEmplace(**file, true);
                tab++;
            }
        }
        tab--;
    } while (dir.RevertEmplace());
}

int main(void) {
    Path cwd = Path::GetCwd();
    Dir dir = Dir(cwd);
    recursive_visit(dir, 0);
    emplace(dir);

    cwd /= "a.out";
    Opt<File, Error::Type> file = File::OpenFile(cwd);
    ByteRep flags = BYTE_REP_JEDEC | BYTE_REP_BYTE_WORD;
    std::cout << "[" << (file->IsDir() ? 'D' : 'F') << "] "
                        << file->Name() << " " << std::fixed << std::setprecision(1)
                        << file->GetFileSizeDec(1024) << " "
                        << file->GetFileSizeSuffix(flags) << std::endl;
}