1
0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/vlib/os/os_nix.v
2019-11-23 19:55:18 +03:00

99 lines
1.9 KiB
V

module os
#include <dirent.h>
#include <unistd.h>
pub const (
path_separator = '/'
)
pub fn init_os_args(argc int, argv &byteptr) []string {
mut args := []string
for i in 0 .. argc {
args << string(argv[i])
}
return args
}
// get_error_msg return error code representation in string.
pub fn get_error_msg(code int) string {
_ptr_text := C.strerror(code) // voidptr?
if _ptr_text == 0 {
return ''
}
return tos(_ptr_text, vstrlen(_ptr_text))
}
pub fn ls(path string) ?[]string {
mut res := []string
dir := C.opendir(path.str)
if isnil(dir) {
return error('ls() couldnt open dir "$path"')
}
mut ent := &C.dirent{!}
for {
ent = C.readdir(dir)
if isnil(ent) {
break
}
name := tos_clone(byteptr(ent.d_name))
if name != '.' && name != '..' && name != '' {
res << name
}
}
C.closedir(dir)
return res
}
pub fn dir_exists(path string) bool {
/*
$if linux {
C.syscall(4, path.str) // sys_newstat
}
*/
dir := C.opendir(path.str)
res := !isnil(dir)
if res {
C.closedir(dir)
}
return res
}
// mkdir creates a new directory with the specified path.
pub fn mkdir(path string) ?bool {
if path == '.' { return true }
apath := os.realpath( path )
r := int(C.mkdir(apath.str, 511))
if r == -1 {
return error(get_error_msg(C.errno))
}
return true
}
// exec starts the specified command, waits for it to complete, and returns its output.
pub fn exec(cmd string) ?Result {
if cmd.contains(';') || cmd.contains('&&') || cmd.contains('||') || cmd.contains('\n') {
return error(';, &&, || and \\n are not allowed in shell commands')
}
pcmd := '$cmd 2>&1'
f := vpopen(pcmd)
if isnil(f) {
return error('exec("$cmd") failed')
}
buf := [1000]byte
mut res := ''
for C.fgets(*char(buf), 1000, f) != 0 {
res += tos(buf, vstrlen(buf))
}
res = res.trim_space()
exit_code := vpclose(f)
//if exit_code != 0 {
//return error(res)
//}
return Result {
output: res
exit_code: exit_code
}
}