delete_file_dir.cpp

/*============================================================
    @author - Rushitkumar Jasani   @rollno - 2018201034
=============================================================*/
#ifndef MYHEADER_H
#define MYHEADER_H
#include "myheader.h"
#endif

#ifndef GLOBAL_H
#define GLOBAL_H
#include "global.h"
#endif

/*============================================================
deletes files that are given in list.
eg: delete_file <f1> <f2> <f3>
=============================================================*/
void delete_file()
{
    if (my_command.size() < 2)
        printf("too few arguments\n");
    else {
        for (unsigned int i = 1; i < my_command.size(); i++) {
            string remove_path = create_absolute_path(my_command[i]);
            if (remove(remove_path.c_str()) != 0)
                perror("");
            else
                cout << "Deleted :: " << my_command[i] << endl;
        }
    }
    return;
}
/*============================================================
Helper Function to delete recursively all files in
no empty directory.
=============================================================*/
void delete_recursive(string d_path)
{
    DIR* dp;
    dp = opendir(d_path.c_str());
    struct dirent* d;
    if (dp == NULL) {
        perror("opendir");
        return;
    }
    while ((d = readdir(dp))) {
        if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0)
            continue;
        else {
            string r_path = d_path + "/" + string(d->d_name);
            if (isDirectory(r_path)) {
                delete_recursive(r_path);
            }
            else {
                remove(r_path.c_str());
            }
        }
    }
    rmdir(d_path.c_str());
    closedir(dp);
    return;
}
/*============================================================
deletes all directories at given list.
eg : delete_dir <d1> <d2> <d3>
=============================================================*/
void delete_dir()
{
    if (my_command.size() < 2)
        printf("too few arguments\n");
    else {
        for (unsigned int i = 1; i < my_command.size(); i++) {
            string d_path = create_absolute_path(my_command[i]);
            if (!isDirectory(d_path)) {
                cout << "Not a Directory" << endl;
            }
            delete_recursive(d_path);
        }
    }
}