1037 lines
22 KiB
V
1037 lines
22 KiB
V
// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module os
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import filepath
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#include <sys/stat.h>
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//#include <signal.h>
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#include <errno.h>
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/*
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struct dirent {
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d_ino int
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d_off int
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d_reclen u16
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d_type byte
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d_name [256]byte
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}
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*/
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struct C.dirent {
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d_name byteptr
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}
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fn C.readdir(voidptr) C.dirent
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pub const (
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args = []string
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MAX_PATH = 4096
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)
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pub struct File {
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cfile voidptr // Using void* instead of FILE*
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mut:
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opened bool
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}
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struct FileInfo {
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name string
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size int
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}
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struct C.stat {
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st_size int
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st_mode u32
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st_mtime int
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}
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struct C.DIR {
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}
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//struct C.dirent {
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//d_name byteptr
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//}
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struct C.sigaction {
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mut:
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sa_mask int
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sa_sigaction int
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sa_flags int
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}
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fn C.getline(voidptr, voidptr, voidptr) int
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fn C.ftell(fp voidptr) int
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fn C.getenv(byteptr) &char
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fn C.sigaction(int, voidptr, int)
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pub fn (f File) is_opened() bool {
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return f.opened
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}
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// read_bytes reads an amount of bytes from the beginning of the file
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pub fn (f mut File) read_bytes(size int) []byte {
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return f.read_bytes_at(size, 0)
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}
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// read_bytes_at reads an amount of bytes at the given position in the file
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pub fn (f mut File) read_bytes_at(size, pos int) []byte {
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mut arr := [`0`].repeat(size)
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C.fseek(f.cfile, pos, C.SEEK_SET)
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nreadbytes := C.fread(arr.data, 1, size, f.cfile)
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C.fseek(f.cfile, 0, C.SEEK_SET)
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return arr[0..nreadbytes]
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}
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pub fn read_bytes(path string) ?[]byte {
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mut fp := vfopen(path, 'rb')
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if isnil(fp) {
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return error('failed to open file "$path"')
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}
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C.fseek(fp, 0, C.SEEK_END)
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fsize := C.ftell(fp)
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C.rewind(fp)
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println('fsize=$fsize')
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mut res := [`0`].repeat(fsize)
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nreadbytes := C.fread(res.data, fsize, 1, fp)
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C.fclose(fp)
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return res[0..nreadbytes]
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}
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// read_file reads the file in `path` and returns the contents.
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pub fn read_file(path string) ?string {
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mode := 'rb'
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mut fp := vfopen(path, mode)
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if isnil(fp) {
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return error('failed to open file "$path"')
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}
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C.fseek(fp, 0, C.SEEK_END)
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fsize := C.ftell(fp)
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// C.fseek(fp, 0, SEEK_SET) // same as `C.rewind(fp)` below
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C.rewind(fp)
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mut str := malloc(fsize + 1)
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C.fread(str, fsize, 1, fp)
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C.fclose(fp)
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str[fsize] = 0
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return string(str, fsize)
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}
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// file_size returns the size of the file located in `path`.
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pub fn file_size(path string) int {
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mut s := C.stat{}
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$if windows {
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C._wstat(path.to_wide(), voidptr(&s))
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} $else {
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C.stat(charptr(path.str), &s)
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}
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return s.st_size
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}
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pub fn mv(old, new string) {
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$if windows {
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C._wrename(old.to_wide(), new.to_wide())
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} $else {
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C.rename(charptr(old.str), charptr(new.str))
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}
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}
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fn C.CopyFile(&u32, &u32, int) int
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// TODO implement actual cp for linux
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pub fn cp(old, new string) ?bool {
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$if windows {
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_old := old.replace('/', '\\')
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_new := new.replace('/', '\\')
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C.CopyFile(_old.to_wide(), _new.to_wide(), false)
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result := C.GetLastError()
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if result == 0 {
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return true
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} else {
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return error_with_code('failed to copy $old to $new', int(result))
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}
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} $else {
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os.system('cp $old $new')
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return true // TODO make it return true or error when cp for linux is implemented
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}
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}
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pub fn cp_r(osource_path, odest_path string, overwrite bool) ?bool{
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source_path := os.realpath( osource_path )
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dest_path := os.realpath( odest_path )
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if !os.file_exists(source_path) {
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return error('Source path doesn\'t exist')
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}
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//single file copy
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if !os.is_dir(source_path) {
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adjasted_path := if os.is_dir(dest_path) {
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filepath.join(dest_path, os.filename(source_path))
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} else {
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dest_path
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}
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if os.file_exists(adjasted_path) {
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if overwrite {
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os.rm(adjasted_path)
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}
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else {
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return error('Destination file path already exist')
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}
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}
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os.cp(source_path, adjasted_path) or { return error(err) }
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return true
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}
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if !os.is_dir(dest_path) {
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return error('Destination path is not a valid directory')
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}
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files := os.ls(source_path) or { return error(err) }
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for file in files {
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sp := filepath.join(source_path, file)
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dp := filepath.join(dest_path, file)
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if os.is_dir(sp) {
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os.mkdir(dp) or { panic(err) }
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}
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cp_r(sp, dp, overwrite) or {
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os.rmdir(dp)
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panic(err)
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}
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}
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return true
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}
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// mv_by_cp first copies the source file, and if it is copied successfully, deletes the source file.
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// mv_by_cp may be used when you are not sure that the source and target are on the same mount/partition.
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pub fn mv_by_cp(source string, target string) ?bool {
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os.cp(source, target) or { return error(err) }
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os.rm(source)
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return true
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}
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fn vfopen(path, mode string) *C.FILE {
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$if windows {
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return C._wfopen(path.to_wide(), mode.to_wide())
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} $else {
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return C.fopen(charptr(path.str), charptr(mode.str))
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}
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}
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// read_lines reads the file in `path` into an array of lines.
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pub fn read_lines(path string) ?[]string {
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mut res := []string
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mut buf_len := 1024
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mut buf := malloc(buf_len)
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mode := 'rb'
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mut fp := vfopen(path, mode)
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if isnil(fp) {
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return error('read_lines() failed to open file "$path"')
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}
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mut buf_index := 0
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for C.fgets(buf + buf_index, buf_len - buf_index, fp) != 0 {
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len := vstrlen(buf)
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if len == buf_len - 1 && buf[len - 1] != 10 {
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buf_len *= 2
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buf = C.realloc(buf, buf_len)
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if isnil(buf) {
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return error('could not reallocate the read buffer')
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}
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buf_index = len
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continue
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}
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if buf[len - 1] == 10 || buf[len - 1] == 13 {
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buf[len - 1] = `\0`
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}
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if len > 1 && buf[len - 2] == 13 {
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buf[len - 2] = `\0`
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}
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res << tos_clone(buf)
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buf_index = 0
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}
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C.fclose(fp)
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return res
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}
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fn read_ulines(path string) ?[]ustring {
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lines := read_lines(path) or {
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return err
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}
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// mut ulines := new_array(0, lines.len, sizeof(ustring))
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mut ulines := []ustring
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for myline in lines {
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// ulines[i] = ustr
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ulines << myline.ustring()
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}
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return ulines
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}
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pub fn open(path string) ?File {
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mut file := File{}
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$if windows {
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wpath := path.to_wide()
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mode := 'rb'
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file = File {
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cfile: C._wfopen(wpath, mode.to_wide())
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}
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} $else {
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cpath := path.str
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file = File {
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cfile: C.fopen(charptr(cpath), 'rb')
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}
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}
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if isnil(file.cfile) {
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return error('failed to open file "$path"')
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}
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file.opened = true
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return file
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}
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// create creates a file at a specified location and returns a writable `File` object.
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pub fn create(path string) ?File {
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mut file := File{}
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$if windows {
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wpath := path.replace('/', '\\').to_wide()
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mode := 'wb'
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file = File {
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cfile: C._wfopen(wpath, mode.to_wide())
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}
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} $else {
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cpath := path.str
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file = File {
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cfile: C.fopen(charptr(cpath), 'wb')
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}
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}
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if isnil(file.cfile) {
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return error('failed to create file "$path"')
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}
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file.opened = true
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return file
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}
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pub fn open_append(path string) ?File {
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mut file := File{}
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$if windows {
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wpath := path.replace('/', '\\').to_wide()
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mode := 'ab'
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file = File {
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cfile: C._wfopen(wpath, mode.to_wide())
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}
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} $else {
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cpath := path.str
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file = File {
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cfile: C.fopen(charptr(cpath), 'ab')
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}
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}
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if isnil(file.cfile) {
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return error('failed to create(append) file "$path"')
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}
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file.opened = true
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return file
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}
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pub fn (f mut File) write(s string) {
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C.fputs(s.str, f.cfile)
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// C.fwrite(s.str, 1, s.len, f.cfile)
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}
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// convert any value to []byte (LittleEndian) and write it
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// for example if we have write(7, 4), "07 00 00 00" gets written
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// write(0x1234, 2) => "34 12"
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pub fn (f mut File) write_bytes(data voidptr, size int) {
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C.fwrite(data, 1, size, f.cfile)
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}
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pub fn (f mut File) write_bytes_at(data voidptr, size, pos int) {
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C.fseek(f.cfile, pos, C.SEEK_SET)
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C.fwrite(data, 1, size, f.cfile)
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C.fseek(f.cfile, 0, C.SEEK_END)
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}
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pub fn (f mut File) writeln(s string) {
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if !f.opened { return }
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// C.fwrite(s.str, 1, s.len, f.cfile)
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// ss := s.clone()
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// TODO perf
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C.fputs(s.str, f.cfile)
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// ss.free()
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C.fputs('\n', f.cfile)
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}
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pub fn (f mut File) flush() {
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if !f.opened { return }
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C.fflush(f.cfile)
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}
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pub fn (f mut File) close() {
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if !f.opened { return }
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f.opened = false
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C.fflush(f.cfile)
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C.fclose(f.cfile)
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}
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// system starts the specified command, waits for it to complete, and returns its code.
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fn vpopen(path string) voidptr {//*C.FILE {
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$if windows {
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mode := 'rb'
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wpath := path.to_wide()
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return C._wpopen(wpath, mode.to_wide())
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}
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$else {
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cpath := path.str
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return C.popen(cpath, 'r')
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}
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}
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fn posix_wait4_to_exit_status(waitret int) (int,bool) {
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$if windows {
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return waitret, false
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}
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$else {
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mut ret := 0
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mut is_signaled := true
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// (see man system, man 2 waitpid: C macro WEXITSTATUS section)
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if C.WIFEXITED( waitret ) {
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ret = C.WEXITSTATUS( waitret )
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is_signaled = false
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} else if C.WIFSIGNALED( waitret ){
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ret = C.WTERMSIG( waitret )
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is_signaled = true
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}
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return ret , is_signaled
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}
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}
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fn vpclose(f voidptr) int {
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$if windows {
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return int( C._pclose(f) )
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}
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$else {
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ret , _ := posix_wait4_to_exit_status( int( C.pclose(f) ) )
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return ret
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}
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}
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pub struct Result {
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pub:
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exit_code int
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output string
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//stderr string // TODO
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}
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// `system` works like `exec()`, but only returns a return code.
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pub fn system(cmd string) int {
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//if cmd.contains(';') || cmd.contains('&&') || cmd.contains('||') || cmd.contains('\n') {
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// TODO remove panic
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//panic(';, &&, || and \\n are not allowed in shell commands')
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//}
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mut ret := int(0)
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$if windows {
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// overcome bug in system & _wsystem (cmd) when first char is quote `"`
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wcmd := if cmd.len > 1 && cmd[0] == `"` && cmd[1] != `"` { '"$cmd"' } else { cmd }
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ret = C._wsystem(wcmd.to_wide())
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} $else {
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ret = C.system(cmd.str)
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}
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if ret == -1 {
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print_c_errno()
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}
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$if !windows {
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pret , is_signaled := posix_wait4_to_exit_status( ret )
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if is_signaled {
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println('Terminated by signal ${ret:2d} (' + sigint_to_signal_name(pret) + ')' )
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}
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ret = pret
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}
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return ret
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}
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pub fn sigint_to_signal_name(si int) string {
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// POSIX signals:
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match si {
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1 {return 'SIGHUP'}
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2 {return 'SIGINT'}
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3 {return 'SIGQUIT'}
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4 {return 'SIGILL'}
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6 {return 'SIGABRT'}
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8 {return 'SIGFPE'}
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9 {return 'SIGKILL'}
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11 {return 'SIGSEGV'}
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13 {return 'SIGPIPE'}
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14 {return 'SIGALRM'}
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15 {return 'SIGTERM'}
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}
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$if linux {
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// From `man 7 signal` on linux:
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match si {
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30,10,16{ return 'SIGUSR1'}
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31,12,17{ return 'SIGUSR2'}
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20,17,18{ return 'SIGCHLD'}
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19,18,25{ return 'SIGCONT'}
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17,19,23{ return 'SIGSTOP'}
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18,20,24{ return 'SIGTSTP'}
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21,21,26{ return 'SIGTTIN'}
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22,22,27{ return 'SIGTTOU'}
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///////////////////////////////
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5{ return 'SIGTRAP'}
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7{ return 'SIGBUS' }
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}
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}
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return 'unknown'
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}
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// `getenv` returns the value of the environment variable named by the key.
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pub fn getenv(key string) string {
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$if windows {
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s := C._wgetenv(key.to_wide())
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if s == 0 {
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return ''
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}
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return string_from_wide(s)
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} $else {
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s := C.getenv(key.str)
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if s == 0 {
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return ''
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}
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// NB: C.getenv *requires* that the result be copied.
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return cstring_to_vstring( byteptr(s) )
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}
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}
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pub fn setenv(name string, value string, overwrite bool) int {
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$if windows {
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format := '$name=$value'
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if overwrite {
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return C._putenv(format.str)
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}
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return -1
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} $else {
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return C.setenv(name.str, value.str, overwrite)
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}
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}
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pub fn unsetenv(name string) int {
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$if windows {
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format := '${name}='
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return C._putenv(format.str)
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} $else {
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return C.unsetenv(name.str)
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}
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}
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// file_exists returns true if `path` exists.
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pub fn file_exists(_path string) bool {
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$if windows {
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path := _path.replace('/', '\\')
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return C._waccess(path.to_wide(), 0) != -1
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} $else {
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return C.access(_path.str, 0 ) != -1
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}
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}
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// rm removes file in `path`.
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pub fn rm(path string) {
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$if windows {
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C._wremove(path.to_wide())
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}
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$else {
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C.remove(path.str)
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}
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// C.unlink(path.cstr())
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}
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// rmdir removes a specified directory.
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pub fn rmdir(path string) {
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$if !windows {
|
|
C.rmdir(path.str)
|
|
}
|
|
$else {
|
|
C.RemoveDirectory(path.to_wide())
|
|
}
|
|
}
|
|
|
|
|
|
fn print_c_errno() {
|
|
//C.printf('errno=%d err="%s"\n', C.errno, C.strerror(C.errno))
|
|
}
|
|
|
|
|
|
pub fn ext(path string) string {
|
|
pos := path.last_index('.')
|
|
if pos == -1 {
|
|
return ''
|
|
}
|
|
return path[pos..]
|
|
}
|
|
|
|
|
|
// dir returns all but the last element of path, typically the path's directory.
|
|
pub fn dir(path string) string {
|
|
if path == '.' {
|
|
return getwd()
|
|
}
|
|
pos := path.last_index(path_separator)
|
|
if pos == -1 {
|
|
return '.'
|
|
}
|
|
return path[..pos]
|
|
}
|
|
|
|
fn path_sans_ext(path string) string {
|
|
pos := path.last_index('.')
|
|
if pos == -1 {
|
|
return path
|
|
}
|
|
return path[..pos]
|
|
}
|
|
|
|
|
|
pub fn basedir(path string) string {
|
|
pos := path.last_index(path_separator)
|
|
if pos == -1 {
|
|
return path
|
|
}
|
|
return path[..pos ] // NB: *without* terminating /
|
|
}
|
|
|
|
pub fn filename(path string) string {
|
|
return path.all_after(path_separator)
|
|
}
|
|
|
|
// get_line returns a one-line string from stdin
|
|
pub fn get_line() string {
|
|
str := get_raw_line()
|
|
$if windows {
|
|
return str.trim_right('\r\n')
|
|
}
|
|
$else {
|
|
return str.trim_right('\n')
|
|
}
|
|
}
|
|
|
|
// get_raw_line returns a one-line string from stdin along with '\n' if there is any
|
|
pub fn get_raw_line() string {
|
|
$if windows {
|
|
max_line_chars := 256
|
|
buf := &byte(malloc(max_line_chars*2))
|
|
if is_atty(0) > 0 {
|
|
h_input := C.GetStdHandle(STD_INPUT_HANDLE)
|
|
mut nr_chars := u32(0)
|
|
C.ReadConsole(h_input, buf, max_line_chars * 2, voidptr(&nr_chars), 0)
|
|
return string_from_wide2(&u16(buf), int(nr_chars))
|
|
}
|
|
res := C.fgetws(&u16(buf), max_line_chars, C.stdin )
|
|
len := int( C.wcslen(&u16(buf)) )
|
|
if !isnil(res) { return string_from_wide2( &u16(buf), len ) }
|
|
return ''
|
|
} $else {
|
|
max := size_t(256)
|
|
buf := charptr(malloc(int(max)))
|
|
nr_chars := C.getline(&buf, &max, stdin)
|
|
if nr_chars == 0 {
|
|
return ''
|
|
}
|
|
return string(byteptr(buf), nr_chars)
|
|
}
|
|
}
|
|
|
|
pub fn get_lines() []string {
|
|
mut line := ''
|
|
mut inputstr := []string
|
|
for {
|
|
line = get_line()
|
|
if(line.len <= 0) {
|
|
break
|
|
}
|
|
line = line.trim_space()
|
|
inputstr << line
|
|
}
|
|
return inputstr
|
|
}
|
|
|
|
pub fn get_lines_joined() string {
|
|
mut line := ''
|
|
mut inputstr := ''
|
|
for {
|
|
line = get_line()
|
|
if line.len <= 0 {
|
|
break
|
|
}
|
|
line = line.trim_space()
|
|
inputstr += line
|
|
}
|
|
return inputstr
|
|
}
|
|
|
|
// user_os returns current user operating system name.
|
|
pub fn user_os() string {
|
|
$if linux {
|
|
return 'linux'
|
|
}
|
|
$if mac {
|
|
return 'mac'
|
|
}
|
|
$if windows {
|
|
return 'windows'
|
|
}
|
|
$if freebsd {
|
|
return 'freebsd'
|
|
}
|
|
$if openbsd {
|
|
return 'openbsd'
|
|
}
|
|
$if netbsd {
|
|
return 'netbsd'
|
|
}
|
|
$if dragonfly {
|
|
return 'dragonfly'
|
|
}
|
|
$if android{
|
|
return 'android'
|
|
}
|
|
$if solaris {
|
|
return 'solaris'
|
|
}
|
|
return 'unknown'
|
|
}
|
|
|
|
// home_dir returns path to user's home directory.
|
|
pub fn home_dir() string {
|
|
mut home := os.getenv('HOME')
|
|
$if windows {
|
|
home = os.getenv('HOMEDRIVE')
|
|
if home.len == 0 {
|
|
home = os.getenv('SYSTEMDRIVE')
|
|
}
|
|
mut homepath := os.getenv('HOMEPATH')
|
|
if homepath.len == 0 {
|
|
homepath = '\\Users\\' + os.getenv('USERNAME')
|
|
}
|
|
home += homepath
|
|
}
|
|
home += path_separator
|
|
return home
|
|
}
|
|
|
|
// write_file writes `text` data to a file in `path`.
|
|
pub fn write_file(path, text string) {
|
|
mut f := os.create(path) or {
|
|
return
|
|
}
|
|
f.write(text)
|
|
f.close()
|
|
}
|
|
|
|
// clear will clear current terminal screen.
|
|
pub fn clear() {
|
|
$if !windows {
|
|
C.printf('\x1b[2J')
|
|
C.printf('\x1b[H')
|
|
}
|
|
}
|
|
|
|
fn on_segfault(f voidptr) {
|
|
$if windows {
|
|
return
|
|
}
|
|
$if mac {
|
|
mut sa := C.sigaction{}
|
|
C.memset(&sa, 0, sizeof(sigaction))
|
|
C.sigemptyset(&sa.sa_mask)
|
|
sa.sa_sigaction = f
|
|
sa.sa_flags = C.SA_SIGINFO
|
|
C.sigaction(C.SIGSEGV, &sa, 0)
|
|
}
|
|
}
|
|
|
|
fn C.getpid() int
|
|
fn C.proc_pidpath (int, byteptr, int) int
|
|
fn C.readlink() int
|
|
|
|
|
|
// executable returns the path name of the executable that started the current
|
|
// process.
|
|
pub fn executable() string {
|
|
$if linux {
|
|
mut result := calloc(MAX_PATH)
|
|
count := C.readlink('/proc/self/exe', result, MAX_PATH)
|
|
if count < 0 {
|
|
eprintln('os.executable() failed at reading /proc/self/exe to get exe path')
|
|
return os.args[0]
|
|
}
|
|
return string(result)
|
|
}
|
|
$if windows {
|
|
max := 512
|
|
mut result := &u16(calloc(max*2)) // MAX_PATH * sizeof(wchar_t)
|
|
len := int(C.GetModuleFileName( 0, result, max ))
|
|
return string_from_wide2(result, len)
|
|
}
|
|
$if mac {
|
|
mut result := calloc(MAX_PATH)
|
|
pid := C.getpid()
|
|
ret := proc_pidpath (pid, result, MAX_PATH)
|
|
if ret <= 0 {
|
|
eprintln('os.executable() failed at calling proc_pidpath with pid: $pid . proc_pidpath returned $ret ')
|
|
return os.args[0]
|
|
}
|
|
return string(result)
|
|
}
|
|
$if freebsd {
|
|
mut result := calloc(MAX_PATH)
|
|
mib := [1 /* CTL_KERN */, 14 /* KERN_PROC */, 12 /* KERN_PROC_PATHNAME */, -1]
|
|
size := MAX_PATH
|
|
C.sysctl(mib.data, 4, result, &size, 0, 0)
|
|
return string(result)
|
|
}
|
|
$if openbsd {
|
|
// "Sadly there is no way to get the full path of the executed file in OpenBSD."
|
|
// lol
|
|
return os.args[0]
|
|
}
|
|
$if solaris {
|
|
}
|
|
$if netbsd {
|
|
mut result := calloc(MAX_PATH)
|
|
count := int(C.readlink('/proc/curproc/exe', result, MAX_PATH ))
|
|
if count < 0 {
|
|
eprintln('os.executable() failed at reading /proc/curproc/exe to get exe path')
|
|
return os.args[0]
|
|
}
|
|
return string(result, count)
|
|
}
|
|
$if dragonfly {
|
|
mut result := calloc(MAX_PATH)
|
|
count := int(C.readlink('/proc/curproc/file', result, MAX_PATH ))
|
|
if count < 0 {
|
|
eprintln('os.executable() failed at reading /proc/curproc/file to get exe path')
|
|
return os.args[0]
|
|
}
|
|
return string(result, count)
|
|
}
|
|
return os.args[0]
|
|
}
|
|
|
|
// is_dir returns a boolean indicating whether the given path is a directory.
|
|
pub fn is_dir(path string) bool {
|
|
$if windows {
|
|
return dir_exists(path)
|
|
//val := int(C.GetFileAttributes(path.to_wide()))
|
|
// Note: this return is broke (wrong). we have dir_exists already how will this differ?
|
|
//return (val &FILE_ATTRIBUTE_DIRECTORY) > 0
|
|
}
|
|
$else {
|
|
statbuf := C.stat{}
|
|
cstr := path.str
|
|
if C.stat(cstr, &statbuf) != 0 {
|
|
return false
|
|
}
|
|
// ref: https://code.woboq.org/gcc/include/sys/stat.h.html
|
|
return (int(statbuf.st_mode) & S_IFMT) == S_IFDIR
|
|
}
|
|
}
|
|
|
|
// chdir changes the current working directory to the new directory path.
|
|
pub fn chdir(path string) {
|
|
$if windows {
|
|
C._wchdir(path.to_wide())
|
|
}
|
|
$else {
|
|
C.chdir(path.str)
|
|
}
|
|
}
|
|
|
|
// getwd returns the absolute path name of the current directory.
|
|
pub fn getwd() string {
|
|
$if windows {
|
|
max := 512 // MAX_PATH * sizeof(wchar_t)
|
|
buf := &u16(calloc(max*2))
|
|
if C._wgetcwd(buf, max) == 0 {
|
|
return ''
|
|
}
|
|
return string_from_wide(buf)
|
|
}
|
|
$else {
|
|
buf := calloc(512)
|
|
if C.getcwd(buf, 512) == 0 {
|
|
return ''
|
|
}
|
|
return string(buf)
|
|
}
|
|
}
|
|
|
|
// 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
|
|
// NB: this particular rabbit hole is *deep* ...
|
|
pub fn realpath(fpath string) string {
|
|
mut fullpath := calloc(MAX_PATH)
|
|
mut ret := charptr(0)
|
|
$if windows {
|
|
ret = C._fullpath(fullpath, fpath.str, MAX_PATH)
|
|
if ret == 0 {
|
|
return fpath
|
|
}
|
|
} $else {
|
|
ret = C.realpath(fpath.str, fullpath)
|
|
if ret == 0 {
|
|
return fpath
|
|
}
|
|
}
|
|
return string(fullpath)
|
|
}
|
|
|
|
// walk_ext returns a recursive list of all file paths ending with `ext`.
|
|
pub fn walk_ext(path, ext string) []string {
|
|
if !os.is_dir(path) {
|
|
return []
|
|
}
|
|
mut files := os.ls(path) or { panic(err) }
|
|
mut res := []string
|
|
separator := if path.ends_with(path_separator) { '' } else { path_separator}
|
|
for i, file in files {
|
|
if file.starts_with('.') {
|
|
continue
|
|
}
|
|
p := path + separator + file
|
|
if os.is_dir(p) {
|
|
res << walk_ext(p, ext)
|
|
}
|
|
else if file.ends_with(ext) {
|
|
res << p
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
// walk recursively traverse the given directory path.
|
|
// When a file is encountred it will call the callback function with current file as argument.
|
|
pub fn walk(path string, fnc fn(path string)) {
|
|
if !os.is_dir(path) {
|
|
return
|
|
}
|
|
mut files := os.ls(path) or { panic(err) }
|
|
for file in files {
|
|
p := path + os.path_separator + file
|
|
if os.is_dir(p) {
|
|
walk(p, fnc)
|
|
}
|
|
else if os.file_exists(p) {
|
|
fnc(p)
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
pub fn signal(signum int, handler voidptr) {
|
|
C.signal(signum, handler)
|
|
}
|
|
|
|
|
|
fn C.fork() int
|
|
fn C.wait() int
|
|
|
|
pub fn fork() int {
|
|
mut pid := -1
|
|
$if !windows {
|
|
pid = C.fork()
|
|
}
|
|
$if windows {
|
|
panic('os.fork not supported in windows') // TODO
|
|
}
|
|
return pid
|
|
}
|
|
|
|
pub fn wait() int {
|
|
mut pid := -1
|
|
$if !windows {
|
|
pid = C.wait(0)
|
|
}
|
|
$if !windows {
|
|
panic('os.wait not supported in windows') // TODO
|
|
}
|
|
return pid
|
|
}
|
|
|
|
pub fn file_last_mod_unix(path string) int {
|
|
attr := C.stat{}
|
|
//# struct stat attr;
|
|
C.stat(path.str, &attr)
|
|
//# stat(path.str, &attr);
|
|
return attr.st_mtime
|
|
//# return attr.st_mtime ;
|
|
}
|
|
|
|
|
|
pub fn log(s string) {
|
|
println('os.log: ' + s)
|
|
}
|
|
|
|
pub fn flush_stdout() {
|
|
C.fflush(stdout)
|
|
}
|
|
|
|
pub fn print_backtrace() {
|
|
/*
|
|
# void *buffer[100];
|
|
nptrs := 0
|
|
# nptrs = backtrace(buffer, 100);
|
|
# printf("%d!!\n", nptrs);
|
|
# backtrace_symbols_fd(buffer, nptrs, STDOUT_FILENO) ;
|
|
*/
|
|
}
|
|
|
|
pub fn mkdir_all(path string) {
|
|
mut p := if path.starts_with(os.path_separator) { os.path_separator } else { '' }
|
|
for subdir in path.split(os.path_separator) {
|
|
p += subdir + os.path_separator
|
|
if !os.dir_exists(p) {
|
|
os.mkdir(p) or { panic(err) }
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn join(base string, dirs ...string) string {
|
|
println('use filepath.join')
|
|
return filepath.join(base, dirs)
|
|
}
|
|
|
|
// tmpdir returns the path to a folder, that is suitable for storing temporary files
|
|
pub fn tmpdir() string {
|
|
mut path := os.getenv('TMPDIR')
|
|
$if linux {
|
|
if path == '' { path = '/tmp' }
|
|
}
|
|
$if mac {
|
|
/*
|
|
if path == '' {
|
|
// TODO untested
|
|
path = C.NSTemporaryDirectory()
|
|
}
|
|
*/
|
|
if path == '' { path = '/tmp' }
|
|
}
|
|
$if windows {
|
|
if path == '' {
|
|
// TODO see Qt's implementation?
|
|
// https://doc.qt.io/qt-5/qdir.html#tempPath
|
|
// https://github.com/qt/qtbase/blob/e164d61ca8263fc4b46fdd916e1ea77c7dd2b735/src/corelib/io/qfilesystemengine_win.cpp#L1275
|
|
path = os.getenv('TEMP')
|
|
if path == '' { path = os.getenv('TMP') }
|
|
if path == '' { path = 'C:/tmp' }
|
|
}
|
|
}
|
|
return path
|
|
}
|
|
|
|
|
|
pub fn chmod(path string, mode int) {
|
|
C.chmod(path.str, mode)
|
|
}
|