490 lines
9.7 KiB
Go
490 lines
9.7 KiB
Go
module os
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#include <sys/stat.h>
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const (
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args = []string
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)
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struct FILE {
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}
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struct File {
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cfile *FILE
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}
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import const (
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SEEK_SET
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SEEK_END
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)
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fn init_os_args(argc int, c voidptr) []string {
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mut args := []string
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# char** argv = (char**) c;
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for i := 0; i < argc; i++ {
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// # printf("ARG %d = '%s'\n", i, argv[i]);
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arg := ''
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# arg = tos(argv[i], strlen(argv[i]));
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args << arg
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}
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# os__args = args;
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return args
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}
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fn parse_windows_cmd_line(cmd byteptr) {
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s := tos2(cmd)
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vals := s.split(' ')
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println(vals)
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# os__args = vals;
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}
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// read_file reads the file in `path` and returns the contents.
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// TODO return `?string`
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pub fn read_file(path string) string {
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res := ''
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# FILE *f = fopen(path.str, "r");
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# if (!f) return tos("", 0);
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# fseek(f, 0, SEEK_END);
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# long fsize = ftell(f);
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// # fseek(f, 0, SEEK_SET); //same as rewind(f);
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# rewind(f);
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# char *string = malloc(fsize + 1);
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# fread(string, fsize, 1, f);
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# fclose(f);
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# string[fsize] = 0;
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// # printf("RFILE= %s\n", string);
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# res = tos(string, fsize);
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return res
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}
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fn (f File) read_rune() string {
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# if (!f.cfile) return tos("", 0);
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c := malloc(1)
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C.fread(c, 1, 1, f.cfile)
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return tos(c, 1)
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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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# struct stat s;
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# stat(path.str, &s);
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// # if (S_ISLNK(s.st_mode)) return -1;
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# return s.st_size;
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// //////////////////////
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# FILE *f = fopen(path.str, "r");
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# if (!f) return 0;
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# fseek(f, 0, SEEK_END);
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# long fsize = ftell(f);
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// # fseek(f, 0, SEEK_SET); //same as rewind(f);
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# rewind(f);
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# return fsize;
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return 0
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}
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pub fn file_last_mod_unix(path string) int {
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# struct stat attr;
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# stat(path.str, &attr);
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# return attr.st_mtime ;
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return 0
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}
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/*
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pub fn file_last_mod_time(path string) time.Time {
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return time.now()
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q := C.tm{}
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# struct stat attr;
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# stat(path.str, &attr);
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// # q = attr.st_mtime;
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# struct tm * now = localtime(&attr.st_mtime);
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# q = *now;
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# printf("Last modified time: %s", ctime(&attr.st_mtime));
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return time.convert_ctime(q)
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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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return read_file_lines(path)
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}
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fn read_file_into_lines(path string) []string {
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return read_file_lines(path)
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}
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fn read_file_into_ulines(path string) []ustring {
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lines := read_file_into_lines(path)
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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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const (
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BUF_SIZE = 5000
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)
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fn read_file_lines(path string) []string {
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// println('read file $path into lines')
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mut res := []string
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# char buf[os__BUF_SIZE];
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# FILE *fp = fopen(path.str, "rb");
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# if (!fp)
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{
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println('failed to open file "$path"')
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return res
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}
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# while (fgets(buf, os__BUF_SIZE, fp) != NULL)
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{
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mut val := ''
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# buf[strlen(buf) - 1] = '\0'; // eat the newline fgets() stores
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#ifdef windows
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# if (buf[strlen(buf)-2] == 13)
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# buf[strlen(buf) - 2] = '\0'; // eat the newline fgets() stores
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#endif
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// # printf("%s\n", buf);
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# val=tos_clone(buf) ;
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// for i := 0; i < val.len; i++ {
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// C.printf('%d) %c %d\n', i, val.str[i], val.str[i])
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// }
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#ifdef windows
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// if val.str[val.len - 1] == 13 {
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if val[val.len - 1] == 13 {
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// TODO
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// val.len--
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}
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#endif
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// println('QQQ read line="$val"')
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res << val
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}
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# fclose(fp);
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return res
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}
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fn append_to_file(file, s string) {
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# FILE* fp = fopen(file.str, "a");
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# fputs(s.str, fp);
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# fputs("\n", fp);
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# fclose(fp);
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}
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struct Reader {
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fp *FILE
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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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// fn open(file string) File? {
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// return open_file(file)
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// }
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pub fn open(path string) File {
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return open_file(path)
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}
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fn open_file(file string) File {
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return create_file2(file, 'r')
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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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return create_file(path)
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}
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pub fn open_append(path string) File {
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return create_file(path)
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}
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fn create_file(file string) File {
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return create_file2(file, 'w')
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}
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fn create_file_a(file string) File {
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return create_file2(file, 'a')
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}
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fn open_file_a(file string) File {
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return create_file2(file, 'a')
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}
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fn create_file2(file string, mode string) File {
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res := File {
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cfile: C.fopen(file.cstr(), mode.cstr())
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}
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if isnil(res.cfile) {
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println('coudlnt create file "$file"')
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}
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return res
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}
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fn (f File) append(s string) {
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ss := s.clone()
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C.fputs(ss.cstr(), f.cfile)
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// ss.free()
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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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fn (f File) write(data voidptr, size int) {
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C.fwrite(data, 1, size, f.cfile)
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}
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fn (f File) write_at(data voidptr, size, pos int) {
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C.fseek(f.cfile, pos, SEEK_SET)
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C.fwrite(data, 1, size, f.cfile)
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C.fseek(f.cfile, 0, SEEK_END)
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}
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fn (f File) appendln(s string) {
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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.cstr(), 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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fn (f File) close() {
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C.fclose(f.cfile)
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}
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fn close_file(fp *FILE) {
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$if windows {
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}
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# if (fp)
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C.fclose(fp)
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}
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// `system2` starts the specified command, waits for it to complete, and returns its code.
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pub fn system2(cmd string) int {
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cstr := cmd.clone()
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ret := int(C.system(cstr.cstr()))
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// println(' system2 ret=$ret cmd="$s"')
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if ret == -1 {
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os.print_c_errno()
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}
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return ret
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}
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fn popen(path string) *FILE {
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cpath := path.cstr()
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$if windows {
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return C._popen(cpath, 'r')
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}
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$else {
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return C.popen(cpath, 'r')
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}
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}
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// TODO rename to run or exec (system doesnt return a string)
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// `system` starts the specified command, waits for it to complete, and returns its output.
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// TODO merge the two functions.
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pub fn system(cmd string) string {
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// println('OS SYSTEM($s)')
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res := ''
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ss := '$cmd 2>&1'
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_ := 0// TODO DOLLAR TOKEN
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f := popen(ss)// cmd)
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// # if (!f)
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if isnil(f) {
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println('popen $cmd failed')
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}
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#define MAX 1000
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# char buf[MAX];
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// # char* buf = malloc(MAX);
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// j# sleep(1);
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// # if (!fgets(buf, MAX, f)) {
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// jprintln('first get failed')
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// jos.print_c_errno()
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// j# }
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# while (fgets(buf, MAX, f) != NULL) {
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// # printf("popen buf=%s\n", buf);
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# res = string_add(res, tos(buf, strlen(buf)));
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# }
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// println(res)
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return res.trim_space()
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}
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fn system_into_lines(s string) []string {
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mut res := []string
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cmd := '$s 2>&1'
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#ifdef windows
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# FILE* f = _popen(cmd.str, "r");
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#else
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# FILE* f = popen(cmd.str, "r");
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#endif
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#define MAX 5000
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// # char buf[MAX];
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# char * buf = malloc(sizeof(char) * MAX);
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# while (fgets(buf, MAX, f) != NULL)
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{
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val := ''
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# buf[strlen(buf) - 1] = '\0'; // eat the newline fgets() stores
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# val=tos_clone(buf);
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res << val
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}
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return res
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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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s := C.getenv(key.cstr())
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if isnil(s) {
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return ''
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}
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return tos2(s)
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}
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fn exit(reason string) {
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println2('exit(): $reason')
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log(reason)
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C.exit(0)
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}
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fn exit1(reason string) {
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println2('exit(): $reason')
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C.exit(1)
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}
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// `file_exists` returns true if `path` exists.
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pub fn file_exists(path string) bool {
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// # return access( path.str, F_OK ) != -1 ;
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res := false
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#ifdef windows
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# res = _access( path.str, 0 ) != -1 ;
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#else
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# res = access( path.str, 0 ) != -1 ;
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#endif
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return res
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}
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// `mkdir` creates a new directory with the specified path.
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pub fn mkdir(path string) {
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$if windows {
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path = path.replace('/', '\\')
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C.CreateDirectory(path.cstr(), 0)
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}
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$else {
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C.mkdir(path.cstr(), 511)// S_IRWXU | S_IRWXG | S_IRWXO
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}
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}
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// `rm` removes file in `path`.
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pub fn rm(path string) {
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$if windows {
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// os.system2('del /f $path')
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}
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$else {
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C.remove(path.cstr())
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}
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// C.unlink(path.cstr())
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}
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/*
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// TODO
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fn rmdir(path string, guard string) {
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if !path.contains(guard) {
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println('rmdir canceled because the path doesnt contain $guard')
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return
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}
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$if !windows {
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}
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$else {
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}
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}
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*/
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pub fn unzip(path, out string) {
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$if windows {
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// TODO native string
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// TODO handle older Windows
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// The only way to unzip a file without installing dependencies is to use PowerShell + .NET
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# char *s="powershell.exe -nologo -noprofile -command \"& { Add-Type -A 'System.IO.Compression.FileSystem'; [IO.Compression.ZipFile]::ExtractToDirectory('PATH', 'OUT'); }\" ";
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mut cmd := ''
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# cmd = tos(s, strlen(s));
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cmd = cmd.replace('PATH', path)
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cmd = cmd.replace('OUT', out)
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os.system(cmd)
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}
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$else {
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os.system('unzip -o -d "$out" "$path"')
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}
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}
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fn print_c_errno() {
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# printf("errno=%d err='%s'\n", errno, strerror(errno));
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}
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pub fn basedir(path string) string {
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pos := path.last_index('/')
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if pos == -1 {
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return path
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}
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return path.left(pos + 1)
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}
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pub fn filename(path string) string {
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return path.all_after('/')
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}
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fn C.getline(voidptr, voidptr, voidptr) int
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pub fn get_line() string {
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max := 256
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buf := malloc(max)
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nr_chars := C.getline(&buf, &max, stdin)
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if nr_chars == 0 {
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return ''
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}
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return tos(buf, nr_chars - 1)
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}
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pub fn user_os() string {
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$if linux {
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return 'linux'
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}
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$if mac {
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return 'mac'
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}
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$if windows {
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return 'windows'
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}
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return 'unknown'
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}
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// `home_dir` returns path to user's home directory.
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pub fn home_dir() string {
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mut home := os.getenv('HOME')
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$if windows {
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home = os.getenv('HOMEDRIVE')
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home += os.getenv('HOMEPATH')
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}
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home += '/'
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return home
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}
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pub fn write_file(path, text string) {
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f := os.create(path)
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f.appendln(text)
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f.close()
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}
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fn on_segfault(f voidptr) {
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#ifdef windows
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return
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#endif
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#ifdef mac
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# struct sigaction sa;
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# memset(&sa, 0, sizeof(struct sigaction));
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# sigemptyset(&sa.sa_mask);
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# sa.sa_sigaction = f;
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# sa.sa_flags = SA_SIGINFO;
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# sigaction(SIGSEGV, &sa, 0);
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#endif
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}
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