Szathmáry László honlapja @ DEIK | DLang / Manipulating files and directories

Examples

(1) common file and directory operations

import os
import shutil

def main():
# suppose the file test.txt exists; its size: 5 bytes

print(os.path.exists("test.txt")) # True

print(os.path.isfile("test.txt")) # True

print(os.path.isdir("test.txt")) # False

shutil.copy("test.txt", "copy.txt") # make copy

shutil.move("copy.txt", "new_name.txt") # rename

os.remove("new_name.txt") # delete it

os.mkdir("temp_dir") # create dir.

os.rmdir("temp_dir") # delete empty dir.

bak = os.getcwd()
os.chdir("/tmp")
print(os.getcwd()) # /tmp
os.chdir(bak)

print(os.path.getsize("test.txt")) # 5 (bytes)

import std.stdio;
import std.file;

void main()
{
// suppose the file test.txt exists; its size: 5 bytes

writeln(exists("test.txt")); // true

writeln(isFile("test.txt")); // true

writeln(isDir("test.txt")); // false

copy("test.txt", "copy.txt"); // make copy

// fully qualified call
std.file.rename("copy.txt", "new_name.txt"); // rename

// fully qualified call
std.file.remove("new_name.txt"); // delete it

mkdir("temp_dir"); // create dir.

rmdir("temp_dir"); // delete empty dir.

auto bak = getcwd();
chdir("/tmp");
writeln(getcwd()); // /tmp
chdir(bak);

writeln(getSize("test.txt")); // 5 (bytes)
}

For rename() and remove() I got an error message. The compiler complained that these function names are also present in core.stdc.stdio and thus they conflict. It seems core.stdc.stdio is imported implicitly. However, with a fully qualified function call (i.e. std.file.remove()), the conflict can be resolved.