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v/vlib/os/os.js.v

187 lines
4.1 KiB
V

module os
$if js_node {
#var $fs = require('fs');
#var $path = require('path');
#var tty = require('tty')
}
pub const (
path_delimiter = get_path_delimiter()
path_separator = get_path_separator()
args = []string{}
)
const executable_suffixes = ['']
fn get_path_delimiter() string {
delimiter := ':'
$if js_node {
#delimiter.str = $path.delimiter
}
return delimiter
}
fn get_path_separator() string {
separator := '/'
$if js_node {
#separator.str = $path.sep
}
return separator
}
fn init() {
$if js_node {
#$process.argv.forEach(function(val,index) { os__args.arr[index] = new string(val); })
}
}
// real_path returns the full absolute path for fpath, with all relative ../../, symlinks and so on resolved.
// See http://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html
// Also https://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html
// and https://insanecoding.blogspot.com/2007/11/implementing-realpath-in-c.html
// Note: this particular rabbit hole is *deep* ...
pub fn real_path(fpath string) string {
$if js_node {
mut res := ''
#res = new string( $fs.realpathSync(fpath))
return res
} $else {
return fpath
}
}
// flush will flush the stdout buffer.
pub fn flush() {
$if js_node {
#$process.stdout.write('')
}
}
pub fn getpid() int {
res := 0
#res.val = $process.pid
return res
}
// chmod change file access attributes of `path` to `mode`.
// Octals like `0o600` can be used.
pub fn chmod(path string, mode int) ! {
$if js_node {
#try {
#$fs.chmodSync(''+path,mode.valueOf())
#} catch (error) {
#return error_with_code(new string("chmod failed: " + error.message),new int(error.code))
#}
} $else {
return error('os.chmod() is available only for NodeJS')
}
}
// chown changes the owner and group attributes of `path` to `owner` and `group`.
// Octals like `0o600` can be used.
pub fn chown(path string, owner int, group int) ! {
$if js_node {
#try {
#$fs.chownSync(''+path,owner.valueOf(),group.valueOf())
#} catch (error) { return error_with_code(new string("chown failed: " + error.message),new int(error.code)) }
} $else {
return error('os.chown() is available only for NodeJS')
}
}
pub fn temp_dir() string {
mut res := ''
$if js_node {
#res = new string($os.tmpdir())
}
return res
}
pub fn home_dir() string {
mut res := ''
$if js_node {
#res = new string($os.homedir())
}
return res
}
// join_path returns a path as string from input string parameter(s).
pub fn join_path(base string, dirs ...string) string {
mut result := []string{}
result << base.trim_right('\\/')
for d in dirs {
result << d
}
mut path_sep := ''
#path_sep = $path.sep;
res := result.join(path_sep)
return res
}
pub fn join_path_single(base string, elem string) string {
// TODO: deprecate this
return join_path(base, elem)
}
pub fn execute(cmd string) Result {
mut exit_code := 0
mut stdout := ''
#let commands = cmd.str.split(' ');
#let output = $child_process.spawnSync(commands[0],commands.slice(1,commands.length));
#exit_code = new int(output.status)
#stdout = new string(output.stdout + '')
return Result{
exit_code: exit_code
output: stdout
}
}
pub fn system(cmd string) int {
exit_code := 0
#let commands = cmd.str.split(' ');
#exit_code.val = $child_process.execSync(commands[0],commands.slice(1,commands.length));
return exit_code
}
pub fn is_atty(fd int) int {
res := 0
#res.val = +tty.isatty(fd.val)
return res
}
pub fn glob(patterns ...string) ![]string {
panic('not yet implemented')
return error('not yet implemented')
}
pub fn write_file_array(path string, buffer array) ! {
mut f := create(path)!
f.write_array(buffer)!
f.close()
}
pub fn chdir(s string) ! {
#try { $process.chdir(s.str); } catch (e) { return error(new string('' + s)) }
}
pub fn file_last_mod_unix(path string) int {
mtime := 0
#mtime.val = Math.floor($fs.lstatSync(path.str).mtime.getTime() / 1000)
return mtime
}
pub fn ensure_folder_is_writable(path string) ! {
fpath := join_path(path, 'some_newfile')
#try { $fs.writeFileSync(fpath); $fs.unlinkSync(fpath) } catch(e) { return error(new string('could not write to ' + path)) }
_ := fpath
}