mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
06e52ba57b
from Naohisa Goto at [ruby-dev:39350]. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2021 lines
50 KiB
C
2021 lines
50 KiB
C
/**********************************************************************
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dir.c -
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$Author$
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created at: Wed Jan 5 09:51:01 JST 1994
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Copyright (C) 1993-2007 Yukihiro Matsumoto
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Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
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Copyright (C) 2000 Information-technology Promotion Agency, Japan
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**********************************************************************/
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#include "ruby/ruby.h"
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#include "ruby/encoding.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if defined HAVE_DIRENT_H && !defined _WIN32
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# include <dirent.h>
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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#elif defined HAVE_DIRECT_H && !defined _WIN32
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# include <direct.h>
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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#else
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# define dirent direct
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# if !defined __NeXT__
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# define NAMLEN(dirent) (dirent)->d_namlen
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# else
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# /* On some versions of NextStep, d_namlen is always zero, so avoid it. */
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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# endif
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# if HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# if HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# if HAVE_NDIR_H
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# include <ndir.h>
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# endif
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# ifdef _WIN32
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# include "win32/dir.h"
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# endif
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#endif
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#include <errno.h>
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#ifndef HAVE_STDLIB_H
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char *getenv();
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#endif
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#ifndef HAVE_STRING_H
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char *strchr(char*,char);
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#endif
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#include <ctype.h>
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#include "ruby/util.h"
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#if !defined HAVE_LSTAT && !defined lstat
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#define lstat stat
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#endif
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#define FNM_NOESCAPE 0x01
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#define FNM_PATHNAME 0x02
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#define FNM_DOTMATCH 0x04
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#define FNM_CASEFOLD 0x08
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#if CASEFOLD_FILESYSTEM
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#define FNM_SYSCASE FNM_CASEFOLD
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#else
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#define FNM_SYSCASE 0
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#endif
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#define FNM_NOMATCH 1
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#define FNM_ERROR 2
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# define Next(p, e, enc) (p + rb_enc_mbclen(p, e, enc))
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# define Inc(p, e, enc) ((p) = Next(p, e, enc))
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static char *
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bracket(
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const char *p, /* pattern (next to '[') */
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const char *pend,
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const char *s, /* string */
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const char *send,
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int flags,
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rb_encoding *enc)
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{
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const int nocase = flags & FNM_CASEFOLD;
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const int escape = !(flags & FNM_NOESCAPE);
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unsigned int c1, c2;
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int r;
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int ok = 0, not = 0;
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if (*p == '!' || *p == '^') {
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not = 1;
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p++;
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}
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while (*p != ']') {
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const char *t1 = p;
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if (escape && *t1 == '\\')
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t1++;
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if (!*t1)
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return NULL;
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p = t1 + (r = rb_enc_mbclen(t1, pend, enc));
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if (p[0] == '-' && p[1] != ']') {
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const char *t2 = p + 1;
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int r2;
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if (escape && *t2 == '\\')
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t2++;
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if (!*t2)
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return NULL;
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p = t2 + (r2 = rb_enc_mbclen(t2, pend, enc));
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if (ok) continue;
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if ((r <= (send-s) && memcmp(t1, s, r) == 0) ||
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(r2 <= (send-s) && memcmp(t2, s, r) == 0)) {
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ok = 1;
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continue;
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}
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c1 = rb_enc_codepoint(s, send, enc);
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if (nocase) c1 = rb_enc_toupper(c1, enc);
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c2 = rb_enc_codepoint(t1, pend, enc);
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if (nocase) c2 = rb_enc_toupper(c2, enc);
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if (c1 < c2) continue;
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c2 = rb_enc_codepoint(t2, pend, enc);
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if (nocase) c2 = rb_enc_toupper(c2, enc);
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if (c1 > c2) continue;
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}
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else {
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if (ok) continue;
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if (r <= (send-s) && memcmp(t1, s, r) == 0) {
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ok = 1;
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continue;
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}
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if (!nocase) continue;
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c1 = rb_enc_toupper(rb_enc_codepoint(s, send, enc), enc);
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c2 = rb_enc_toupper(rb_enc_codepoint(p, pend, enc), enc);
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if (c1 != c2) continue;
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}
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ok = 1;
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}
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return ok == not ? NULL : (char *)p + 1;
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}
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/* If FNM_PATHNAME is set, only path element will be matched. (upto '/' or '\0')
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Otherwise, entire string will be matched.
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End marker itself won't be compared.
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And if function succeeds, *pcur reaches end marker.
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*/
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#define UNESCAPE(p) (escape && *(p) == '\\' ? (p) + 1 : (p))
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#define ISEND(p) (!*(p) || (pathname && *(p) == '/'))
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#define RETURN(val) return *pcur = p, *scur = s, (val);
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static int
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fnmatch_helper(
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const char **pcur, /* pattern */
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const char **scur, /* string */
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int flags,
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rb_encoding *enc)
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{
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const int period = !(flags & FNM_DOTMATCH);
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const int pathname = flags & FNM_PATHNAME;
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const int escape = !(flags & FNM_NOESCAPE);
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const int nocase = flags & FNM_CASEFOLD;
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const char *ptmp = 0;
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const char *stmp = 0;
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const char *p = *pcur;
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const char *pend = p + strlen(p);
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const char *s = *scur;
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const char *send = s + strlen(s);
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int r;
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if (period && *s == '.' && *UNESCAPE(p) != '.') /* leading period */
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RETURN(FNM_NOMATCH);
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while (1) {
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switch (*p) {
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case '*':
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do { p++; } while (*p == '*');
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if (ISEND(UNESCAPE(p))) {
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p = UNESCAPE(p);
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RETURN(0);
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}
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if (ISEND(s))
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RETURN(FNM_NOMATCH);
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ptmp = p;
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stmp = s;
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continue;
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case '?':
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if (ISEND(s))
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RETURN(FNM_NOMATCH);
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p++;
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Inc(s, send, enc);
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continue;
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case '[': {
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const char *t;
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if (ISEND(s))
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RETURN(FNM_NOMATCH);
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if ((t = bracket(p + 1, pend, s, send, flags, enc)) != 0) {
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p = t;
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Inc(s, send, enc);
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continue;
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}
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goto failed;
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}
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}
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/* ordinary */
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p = UNESCAPE(p);
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if (ISEND(s))
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RETURN(ISEND(p) ? 0 : FNM_NOMATCH);
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if (ISEND(p))
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goto failed;
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r = rb_enc_precise_mbclen(p, pend, enc);
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if (!MBCLEN_CHARFOUND_P(r))
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goto failed;
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if (r <= (send-s) && memcmp(p, s, r) == 0) {
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p += r;
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s += r;
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continue;
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}
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if (!nocase) goto failed;
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if (rb_enc_toupper(rb_enc_codepoint(p, pend, enc), enc) !=
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rb_enc_toupper(rb_enc_codepoint(s, send, enc), enc))
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goto failed;
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p += r;
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Inc(s, send, enc);
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continue;
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failed: /* try next '*' position */
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if (ptmp && stmp) {
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p = ptmp;
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Inc(stmp, send, enc); /* !ISEND(*stmp) */
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s = stmp;
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continue;
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}
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RETURN(FNM_NOMATCH);
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}
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}
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static int
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fnmatch(
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const char *pattern,
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rb_encoding *enc,
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const char *string,
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int flags)
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{
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const char *p = pattern;
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const char *s = string;
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const char *send = s + strlen(string);
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const int period = !(flags & FNM_DOTMATCH);
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const int pathname = flags & FNM_PATHNAME;
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const char *ptmp = 0;
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const char *stmp = 0;
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if (pathname) {
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while (1) {
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if (p[0] == '*' && p[1] == '*' && p[2] == '/') {
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do { p += 3; } while (p[0] == '*' && p[1] == '*' && p[2] == '/');
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ptmp = p;
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stmp = s;
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}
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if (fnmatch_helper(&p, &s, flags, enc) == 0) {
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while (*s && *s != '/') Inc(s, send, enc);
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if (*p && *s) {
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p++;
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s++;
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continue;
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}
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if (!*p && !*s)
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return 0;
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}
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/* failed : try next recursion */
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if (ptmp && stmp && !(period && *stmp == '.')) {
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while (*stmp && *stmp != '/') Inc(stmp, send, enc);
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if (*stmp) {
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p = ptmp;
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stmp++;
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s = stmp;
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continue;
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}
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}
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return FNM_NOMATCH;
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}
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}
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else
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return fnmatch_helper(&p, &s, flags, enc);
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}
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VALUE rb_cDir;
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struct dir_data {
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DIR *dir;
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VALUE path;
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rb_encoding *enc;
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};
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static void
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dir_mark(void *ptr)
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{
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struct dir_data *dir = ptr;
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rb_gc_mark(dir->path);
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}
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static void
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dir_free(void *ptr)
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{
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struct dir_data *dir = ptr;
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if (dir) {
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if (dir->dir) closedir(dir->dir);
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}
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xfree(dir);
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}
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static size_t
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dir_memsize(const void *ptr)
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{
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return ptr ? sizeof(struct dir_data) : 0;
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}
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static const rb_data_type_t dir_data_type = {
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"dir",
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dir_mark, dir_free, dir_memsize
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};
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static VALUE dir_close(VALUE);
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#define GlobPathValue(str, safe) \
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/* can contain null bytes as separators */ \
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(!RB_TYPE_P(str, T_STRING) ? \
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FilePathValue(str) : \
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(safe) ? (rb_check_safe_obj(str), (str)) : (str))
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static VALUE
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dir_s_alloc(VALUE klass)
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{
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struct dir_data *dirp;
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VALUE obj = TypedData_Make_Struct(klass, struct dir_data, &dir_data_type, dirp);
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dirp->dir = NULL;
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dirp->path = Qnil;
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dirp->enc = NULL;
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return obj;
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}
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/*
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* call-seq:
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* Dir.new( string ) -> aDir
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*
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* Returns a new directory object for the named directory.
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*/
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static VALUE
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dir_initialize(int argc, VALUE *argv, VALUE dir)
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{
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struct dir_data *dp;
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rb_encoding *fsenc;
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VALUE dirname, opt;
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static VALUE sym_enc;
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if (!sym_enc) {
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sym_enc = ID2SYM(rb_intern("encoding"));
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}
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fsenc = rb_filesystem_encoding();
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rb_scan_args(argc, argv, "11", &dirname, &opt);
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if (!NIL_P(opt)) {
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VALUE v, enc=Qnil;
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opt = rb_convert_type(opt, T_HASH, "Hash", "to_hash");
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v = rb_hash_aref(opt, sym_enc);
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if (!NIL_P(v)) enc = v;
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if (!NIL_P(enc)) {
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fsenc = rb_to_encoding(enc);
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}
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}
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GlobPathValue(dirname, FALSE);
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TypedData_Get_Struct(dir, struct dir_data, &dir_data_type, dp);
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if (dp->dir) closedir(dp->dir);
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dp->dir = NULL;
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dp->path = Qnil;
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dp->enc = fsenc;
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dp->dir = opendir(RSTRING_PTR(dirname));
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if (dp->dir == NULL) {
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if (errno == EMFILE || errno == ENFILE) {
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rb_gc();
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dp->dir = opendir(RSTRING_PTR(dirname));
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}
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if (dp->dir == NULL) {
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rb_sys_fail(RSTRING_PTR(dirname));
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}
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}
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dp->path = rb_str_dup_frozen(dirname);
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return dir;
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}
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/*
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* call-seq:
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* Dir.open( string ) => aDir
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* Dir.open( string ) {| aDir | block } => anObject
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*
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* With no block, <code>open</code> is a synonym for
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* <code>Dir::new</code>. If a block is present, it is passed
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* <i>aDir</i> as a parameter. The directory is closed at the end of
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* the block, and <code>Dir::open</code> returns the value of the
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* block.
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*/
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static VALUE
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dir_s_open(int argc, VALUE *argv, VALUE klass)
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{
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struct dir_data *dp;
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VALUE dir = TypedData_Make_Struct(klass, struct dir_data, &dir_data_type, dp);
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dir_initialize(argc, argv, dir);
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if (rb_block_given_p()) {
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return rb_ensure(rb_yield, dir, dir_close, dir);
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}
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return dir;
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}
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static void
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dir_closed(void)
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{
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rb_raise(rb_eIOError, "closed directory");
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}
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static void
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dir_check(VALUE dir)
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{
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if (!OBJ_UNTRUSTED(dir) && rb_safe_level() >= 4)
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rb_raise(rb_eSecurityError, "Insecure: operation on trusted Dir");
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rb_check_frozen(dir);
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}
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#define GetDIR(obj, dirp) do {\
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dir_check(dir);\
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TypedData_Get_Struct(obj, struct dir_data, &dir_data_type, dirp); \
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if (dirp->dir == NULL) dir_closed();\
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} while (0)
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|
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/*
|
|
* call-seq:
|
|
* dir.inspect => string
|
|
*
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* Return a string describing this Dir object.
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*/
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static VALUE
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dir_inspect(VALUE dir)
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{
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struct dir_data *dirp;
|
|
|
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TypedData_Get_Struct(dir, struct dir_data, &dir_data_type, dirp);
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if (!NIL_P(dirp->path)) {
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const char *c = rb_obj_classname(dir);
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return rb_sprintf("#<%s:%s>", c, RSTRING_PTR(dirp->path));
|
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}
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return rb_funcall(dir, rb_intern("to_s"), 0, 0);
|
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}
|
|
|
|
/*
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|
* call-seq:
|
|
* dir.path => string or nil
|
|
*
|
|
* Returns the path parameter passed to <em>dir</em>'s constructor.
|
|
*
|
|
* d = Dir.new("..")
|
|
* d.path #=> ".."
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|
*/
|
|
static VALUE
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|
dir_path(VALUE dir)
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|
{
|
|
struct dir_data *dirp;
|
|
|
|
TypedData_Get_Struct(dir, struct dir_data, &dir_data_type, dirp);
|
|
if (NIL_P(dirp->path)) return Qnil;
|
|
return rb_str_dup(dirp->path);
|
|
}
|
|
|
|
#if defined HAVE_READDIR_R
|
|
# define READDIR(dir, enc, entry, dp) (readdir_r(dir, entry, &(dp)) == 0 && dp != 0)
|
|
#elif defined _WIN32
|
|
# define READDIR(dir, enc, entry, dp) ((dp = rb_w32_readdir_with_enc(dir, enc)) != 0)
|
|
#else
|
|
# define READDIR(dir, enc, entry, dp) ((dp = readdir(dir)) != 0)
|
|
#endif
|
|
#if defined HAVE_READDIR_R
|
|
# define IF_HAVE_READDIR_R(something) something
|
|
#else
|
|
# define IF_HAVE_READDIR_R(something) /* nothing */
|
|
#endif
|
|
|
|
#if defined SIZEOF_STRUCT_DIRENT_TOO_SMALL
|
|
# include <limits.h>
|
|
# define NAME_MAX_FOR_STRUCT_DIRENT 255
|
|
# if defined NAME_MAX
|
|
# if NAME_MAX_FOR_STRUCT_DIRENT < NAME_MAX
|
|
# undef NAME_MAX_FOR_STRUCT_DIRENT
|
|
# define NAME_MAX_FOR_STRUCT_DIRENT NAME_MAX
|
|
# endif
|
|
# endif
|
|
# if defined _POSIX_NAME_MAX
|
|
# if NAME_MAX_FOR_STRUCT_DIRENT < _POSIX_NAME_MAX
|
|
# undef NAME_MAX_FOR_STRUCT_DIRENT
|
|
# define NAME_MAX_FOR_STRUCT_DIRENT _POSIX_NAME_MAX
|
|
# endif
|
|
# endif
|
|
# if defined _XOPEN_NAME_MAX
|
|
# if NAME_MAX_FOR_STRUCT_DIRENT < _XOPEN_NAME_MAX
|
|
# undef NAME_MAX_FOR_STRUCT_DIRENT
|
|
# define NAME_MAX_FOR_STRUCT_DIRENT _XOPEN_NAME_MAX
|
|
# endif
|
|
# endif
|
|
# define DEFINE_STRUCT_DIRENT \
|
|
union { \
|
|
struct dirent dirent; \
|
|
char dummy[offsetof(struct dirent, d_name) + \
|
|
NAME_MAX_FOR_STRUCT_DIRENT + 1]; \
|
|
}
|
|
# define STRUCT_DIRENT(entry) ((entry).dirent)
|
|
#else
|
|
# define DEFINE_STRUCT_DIRENT struct dirent
|
|
# define STRUCT_DIRENT(entry) (entry)
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* dir.read => string or nil
|
|
*
|
|
* Reads the next entry from <em>dir</em> and returns it as a string.
|
|
* Returns <code>nil</code> at the end of the stream.
|
|
*
|
|
* d = Dir.new("testdir")
|
|
* d.read #=> "."
|
|
* d.read #=> ".."
|
|
* d.read #=> "config.h"
|
|
*/
|
|
static VALUE
|
|
dir_read(VALUE dir)
|
|
{
|
|
struct dir_data *dirp;
|
|
struct dirent *dp;
|
|
IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
|
|
|
|
GetDIR(dir, dirp);
|
|
errno = 0;
|
|
if (READDIR(dirp->dir, dirp->enc, &STRUCT_DIRENT(entry), dp)) {
|
|
return rb_external_str_new_with_enc(dp->d_name, NAMLEN(dp), dirp->enc);
|
|
}
|
|
else if (errno == 0) { /* end of stream */
|
|
return Qnil;
|
|
}
|
|
else {
|
|
rb_sys_fail(0);
|
|
}
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* dir.each { |filename| block } => dir
|
|
*
|
|
* Calls the block once for each entry in this directory, passing the
|
|
* filename of each entry as a parameter to the block.
|
|
*
|
|
* d = Dir.new("testdir")
|
|
* d.each {|x| puts "Got #{x}" }
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Got .
|
|
* Got ..
|
|
* Got config.h
|
|
* Got main.rb
|
|
*/
|
|
static VALUE
|
|
dir_each(VALUE dir)
|
|
{
|
|
struct dir_data *dirp;
|
|
struct dirent *dp;
|
|
IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
|
|
|
|
RETURN_ENUMERATOR(dir, 0, 0);
|
|
GetDIR(dir, dirp);
|
|
rewinddir(dirp->dir);
|
|
while (READDIR(dirp->dir, dirp->enc, &STRUCT_DIRENT(entry), dp)) {
|
|
rb_yield(rb_external_str_new_with_enc(dp->d_name, NAMLEN(dp), dirp->enc));
|
|
if (dirp->dir == NULL) dir_closed();
|
|
}
|
|
return dir;
|
|
}
|
|
|
|
#ifdef HAVE_TELLDIR
|
|
/*
|
|
* call-seq:
|
|
* dir.pos => integer
|
|
* dir.tell => integer
|
|
*
|
|
* Returns the current position in <em>dir</em>. See also
|
|
* <code>Dir#seek</code>.
|
|
*
|
|
* d = Dir.new("testdir")
|
|
* d.tell #=> 0
|
|
* d.read #=> "."
|
|
* d.tell #=> 12
|
|
*/
|
|
static VALUE
|
|
dir_tell(VALUE dir)
|
|
{
|
|
struct dir_data *dirp;
|
|
long pos;
|
|
|
|
GetDIR(dir, dirp);
|
|
pos = telldir(dirp->dir);
|
|
return rb_int2inum(pos);
|
|
}
|
|
#else
|
|
#define dir_tell rb_f_notimplement
|
|
#endif
|
|
|
|
#ifdef HAVE_SEEKDIR
|
|
/*
|
|
* call-seq:
|
|
* dir.seek( integer ) => dir
|
|
*
|
|
* Seeks to a particular location in <em>dir</em>. <i>integer</i>
|
|
* must be a value returned by <code>Dir#tell</code>.
|
|
*
|
|
* d = Dir.new("testdir") #=> #<Dir:0x401b3c40>
|
|
* d.read #=> "."
|
|
* i = d.tell #=> 12
|
|
* d.read #=> ".."
|
|
* d.seek(i) #=> #<Dir:0x401b3c40>
|
|
* d.read #=> ".."
|
|
*/
|
|
static VALUE
|
|
dir_seek(VALUE dir, VALUE pos)
|
|
{
|
|
struct dir_data *dirp;
|
|
long p = NUM2LONG(pos);
|
|
|
|
GetDIR(dir, dirp);
|
|
seekdir(dirp->dir, p);
|
|
return dir;
|
|
}
|
|
#else
|
|
#define dir_seek rb_f_notimplement
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* dir.pos( integer ) => integer
|
|
*
|
|
* Synonym for <code>Dir#seek</code>, but returns the position
|
|
* parameter.
|
|
*
|
|
* d = Dir.new("testdir") #=> #<Dir:0x401b3c40>
|
|
* d.read #=> "."
|
|
* i = d.pos #=> 12
|
|
* d.read #=> ".."
|
|
* d.pos = i #=> 12
|
|
* d.read #=> ".."
|
|
*/
|
|
static VALUE
|
|
dir_set_pos(VALUE dir, VALUE pos)
|
|
{
|
|
dir_seek(dir, pos);
|
|
return pos;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* dir.rewind => dir
|
|
*
|
|
* Repositions <em>dir</em> to the first entry.
|
|
*
|
|
* d = Dir.new("testdir")
|
|
* d.read #=> "."
|
|
* d.rewind #=> #<Dir:0x401b3fb0>
|
|
* d.read #=> "."
|
|
*/
|
|
static VALUE
|
|
dir_rewind(VALUE dir)
|
|
{
|
|
struct dir_data *dirp;
|
|
|
|
if (rb_safe_level() >= 4 && !OBJ_UNTRUSTED(dir)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't close");
|
|
}
|
|
GetDIR(dir, dirp);
|
|
rewinddir(dirp->dir);
|
|
return dir;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* dir.close => nil
|
|
*
|
|
* Closes the directory stream. Any further attempts to access
|
|
* <em>dir</em> will raise an <code>IOError</code>.
|
|
*
|
|
* d = Dir.new("testdir")
|
|
* d.close #=> nil
|
|
*/
|
|
static VALUE
|
|
dir_close(VALUE dir)
|
|
{
|
|
struct dir_data *dirp;
|
|
|
|
GetDIR(dir, dirp);
|
|
closedir(dirp->dir);
|
|
dirp->dir = NULL;
|
|
|
|
return Qnil;
|
|
}
|
|
|
|
static void
|
|
dir_chdir(VALUE path)
|
|
{
|
|
if (chdir(RSTRING_PTR(path)) < 0)
|
|
rb_sys_fail(RSTRING_PTR(path));
|
|
}
|
|
|
|
static int chdir_blocking = 0;
|
|
static VALUE chdir_thread = Qnil;
|
|
|
|
struct chdir_data {
|
|
VALUE old_path, new_path;
|
|
int done;
|
|
};
|
|
|
|
static VALUE
|
|
chdir_yield(struct chdir_data *args)
|
|
{
|
|
dir_chdir(args->new_path);
|
|
args->done = TRUE;
|
|
chdir_blocking++;
|
|
if (chdir_thread == Qnil)
|
|
chdir_thread = rb_thread_current();
|
|
return rb_yield(args->new_path);
|
|
}
|
|
|
|
static VALUE
|
|
chdir_restore(struct chdir_data *args)
|
|
{
|
|
if (args->done) {
|
|
chdir_blocking--;
|
|
if (chdir_blocking == 0)
|
|
chdir_thread = Qnil;
|
|
dir_chdir(args->old_path);
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.chdir( [ string] ) => 0
|
|
* Dir.chdir( [ string] ) {| path | block } => anObject
|
|
*
|
|
* Changes the current working directory of the process to the given
|
|
* string. When called without an argument, changes the directory to
|
|
* the value of the environment variable <code>HOME</code>, or
|
|
* <code>LOGDIR</code>. <code>SystemCallError</code> (probably
|
|
* <code>Errno::ENOENT</code>) if the target directory does not exist.
|
|
*
|
|
* If a block is given, it is passed the name of the new current
|
|
* directory, and the block is executed with that as the current
|
|
* directory. The original working directory is restored when the block
|
|
* exits. The return value of <code>chdir</code> is the value of the
|
|
* block. <code>chdir</code> blocks can be nested, but in a
|
|
* multi-threaded program an error will be raised if a thread attempts
|
|
* to open a <code>chdir</code> block while another thread has one
|
|
* open.
|
|
*
|
|
* Dir.chdir("/var/spool/mail")
|
|
* puts Dir.pwd
|
|
* Dir.chdir("/tmp") do
|
|
* puts Dir.pwd
|
|
* Dir.chdir("/usr") do
|
|
* puts Dir.pwd
|
|
* end
|
|
* puts Dir.pwd
|
|
* end
|
|
* puts Dir.pwd
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* /var/spool/mail
|
|
* /tmp
|
|
* /usr
|
|
* /tmp
|
|
* /var/spool/mail
|
|
*/
|
|
static VALUE
|
|
dir_s_chdir(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE path = Qnil;
|
|
|
|
rb_secure(2);
|
|
if (rb_scan_args(argc, argv, "01", &path) == 1) {
|
|
FilePathValue(path);
|
|
}
|
|
else {
|
|
const char *dist = getenv("HOME");
|
|
if (!dist) {
|
|
dist = getenv("LOGDIR");
|
|
if (!dist) rb_raise(rb_eArgError, "HOME/LOGDIR not set");
|
|
}
|
|
path = rb_str_new2(dist);
|
|
}
|
|
|
|
if (chdir_blocking > 0) {
|
|
if (!rb_block_given_p() || rb_thread_current() != chdir_thread)
|
|
rb_warn("conflicting chdir during another chdir block");
|
|
}
|
|
|
|
if (rb_block_given_p()) {
|
|
struct chdir_data args;
|
|
char *cwd = my_getcwd();
|
|
|
|
args.old_path = rb_tainted_str_new2(cwd); xfree(cwd);
|
|
args.new_path = path;
|
|
args.done = FALSE;
|
|
return rb_ensure(chdir_yield, (VALUE)&args, chdir_restore, (VALUE)&args);
|
|
}
|
|
dir_chdir(path);
|
|
|
|
return INT2FIX(0);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.getwd => string
|
|
* Dir.pwd => string
|
|
*
|
|
* Returns the path to the current working directory of this process as
|
|
* a string.
|
|
*
|
|
* Dir.chdir("/tmp") #=> 0
|
|
* Dir.getwd #=> "/tmp"
|
|
*/
|
|
static VALUE
|
|
dir_s_getwd(VALUE dir)
|
|
{
|
|
char *path;
|
|
VALUE cwd;
|
|
|
|
rb_secure(4);
|
|
path = my_getcwd();
|
|
cwd = rb_tainted_str_new2(path);
|
|
rb_enc_associate(cwd, rb_filesystem_encoding());
|
|
|
|
xfree(path);
|
|
return cwd;
|
|
}
|
|
|
|
static void
|
|
check_dirname(volatile VALUE *dir)
|
|
{
|
|
char *path, *pend;
|
|
|
|
rb_secure(2);
|
|
FilePathValue(*dir);
|
|
path = RSTRING_PTR(*dir);
|
|
if (path && *(pend = rb_path_end(rb_path_skip_prefix(path)))) {
|
|
*dir = rb_str_new(path, pend - path);
|
|
}
|
|
}
|
|
|
|
#if defined(HAVE_CHROOT)
|
|
/*
|
|
* call-seq:
|
|
* Dir.chroot( string ) => 0
|
|
*
|
|
* Changes this process's idea of the file system root. Only a
|
|
* privileged process may make this call. Not available on all
|
|
* platforms. On Unix systems, see <code>chroot(2)</code> for more
|
|
* information.
|
|
*/
|
|
static VALUE
|
|
dir_s_chroot(VALUE dir, VALUE path)
|
|
{
|
|
check_dirname(&path);
|
|
|
|
if (chroot(RSTRING_PTR(path)) == -1)
|
|
rb_sys_fail(RSTRING_PTR(path));
|
|
|
|
return INT2FIX(0);
|
|
}
|
|
#else
|
|
#define dir_s_chroot rb_f_notimplement
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.mkdir( string [, integer] ) => 0
|
|
*
|
|
* Makes a new directory named by <i>string</i>, with permissions
|
|
* specified by the optional parameter <i>anInteger</i>. The
|
|
* permissions may be modified by the value of
|
|
* <code>File::umask</code>, and are ignored on NT. Raises a
|
|
* <code>SystemCallError</code> if the directory cannot be created. See
|
|
* also the discussion of permissions in the class documentation for
|
|
* <code>File</code>.
|
|
*
|
|
*/
|
|
static VALUE
|
|
dir_s_mkdir(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE path, vmode;
|
|
int mode;
|
|
|
|
if (rb_scan_args(argc, argv, "11", &path, &vmode) == 2) {
|
|
mode = NUM2INT(vmode);
|
|
}
|
|
else {
|
|
mode = 0777;
|
|
}
|
|
|
|
check_dirname(&path);
|
|
if (mkdir(RSTRING_PTR(path), mode) == -1)
|
|
rb_sys_fail(RSTRING_PTR(path));
|
|
|
|
return INT2FIX(0);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.delete( string ) => 0
|
|
* Dir.rmdir( string ) => 0
|
|
* Dir.unlink( string ) => 0
|
|
*
|
|
* Deletes the named directory. Raises a subclass of
|
|
* <code>SystemCallError</code> if the directory isn't empty.
|
|
*/
|
|
static VALUE
|
|
dir_s_rmdir(VALUE obj, VALUE dir)
|
|
{
|
|
check_dirname(&dir);
|
|
if (rmdir(RSTRING_PTR(dir)) < 0)
|
|
rb_sys_fail(RSTRING_PTR(dir));
|
|
|
|
return INT2FIX(0);
|
|
}
|
|
|
|
static VALUE
|
|
sys_warning_1(VALUE mesg)
|
|
{
|
|
rb_sys_warning("%s", (const char *)mesg);
|
|
return Qnil;
|
|
}
|
|
|
|
#define GLOB_VERBOSE (1U << (sizeof(int) * CHAR_BIT - 1))
|
|
#define sys_warning(val) \
|
|
(void)((flags & GLOB_VERBOSE) && rb_protect(sys_warning_1, (VALUE)(val), 0))
|
|
|
|
#define GLOB_ALLOC(type) (type *)malloc(sizeof(type))
|
|
#define GLOB_ALLOC_N(type, n) (type *)malloc(sizeof(type) * (n))
|
|
#define GLOB_FREE(ptr) free(ptr)
|
|
#define GLOB_JUMP_TAG(status) ((status == -1) ? rb_memerror() : rb_jump_tag(status))
|
|
|
|
/*
|
|
* ENOTDIR can be returned by stat(2) if a non-leaf element of the path
|
|
* is not a directory.
|
|
*/
|
|
#define to_be_ignored(e) ((e) == ENOENT || (e) == ENOTDIR)
|
|
|
|
/* System call with warning */
|
|
static int
|
|
do_stat(const char *path, struct stat *pst, int flags)
|
|
|
|
{
|
|
int ret = stat(path, pst);
|
|
if (ret < 0 && !to_be_ignored(errno))
|
|
sys_warning(path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
do_lstat(const char *path, struct stat *pst, int flags)
|
|
{
|
|
int ret = lstat(path, pst);
|
|
if (ret < 0 && !to_be_ignored(errno))
|
|
sys_warning(path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static DIR *
|
|
do_opendir(const char *path, int flags)
|
|
{
|
|
DIR *dirp = opendir(path);
|
|
if (dirp == NULL && !to_be_ignored(errno))
|
|
sys_warning(path);
|
|
|
|
return dirp;
|
|
}
|
|
|
|
/* Return nonzero if S has any special globbing chars in it. */
|
|
static int
|
|
has_magic(const char *s, int flags, rb_encoding *enc)
|
|
{
|
|
const int escape = !(flags & FNM_NOESCAPE);
|
|
const int nocase = flags & FNM_CASEFOLD;
|
|
|
|
register const char *p = s;
|
|
register const char *pend = p + strlen(p);
|
|
register char c;
|
|
|
|
while ((c = *p++) != 0) {
|
|
switch (c) {
|
|
case '*':
|
|
case '?':
|
|
case '[':
|
|
return 1;
|
|
|
|
case '\\':
|
|
if (escape && !(c = *p++))
|
|
return 0;
|
|
continue;
|
|
|
|
default:
|
|
if (!FNM_SYSCASE && ISALPHA(c) && nocase)
|
|
return 1;
|
|
}
|
|
|
|
p = Next(p-1, pend, enc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Find separator in globbing pattern. */
|
|
static char *
|
|
find_dirsep(const char *s, int flags, rb_encoding *enc)
|
|
{
|
|
const int escape = !(flags & FNM_NOESCAPE);
|
|
|
|
register const char *p = s;
|
|
register const char *pend = p + strlen(p);
|
|
register char c;
|
|
int open = 0;
|
|
|
|
while ((c = *p++) != 0) {
|
|
switch (c) {
|
|
case '[':
|
|
open = 1;
|
|
continue;
|
|
case ']':
|
|
open = 0;
|
|
continue;
|
|
|
|
case '/':
|
|
if (!open)
|
|
return (char *)p-1;
|
|
continue;
|
|
|
|
case '\\':
|
|
if (escape && !(c = *p++))
|
|
return (char *)p-1;
|
|
continue;
|
|
}
|
|
|
|
p = Next(p-1, pend, enc);
|
|
}
|
|
|
|
return (char *)p-1;
|
|
}
|
|
|
|
/* Remove escaping backslashes */
|
|
static void
|
|
remove_backslashes(char *p, rb_encoding *enc)
|
|
{
|
|
register const char *pend = p + strlen(p);
|
|
char *t = p;
|
|
char *s = p;
|
|
|
|
while (*p) {
|
|
if (*p == '\\') {
|
|
if (t != s)
|
|
memmove(t, s, p - s);
|
|
t += p - s;
|
|
s = ++p;
|
|
if (!*p) break;
|
|
}
|
|
Inc(p, pend, enc);
|
|
}
|
|
|
|
while (*p++);
|
|
|
|
if (t != s)
|
|
memmove(t, s, p - s); /* move '\0' too */
|
|
}
|
|
|
|
/* Globing pattern */
|
|
enum glob_pattern_type { PLAIN, MAGICAL, RECURSIVE, MATCH_ALL, MATCH_DIR };
|
|
|
|
struct glob_pattern {
|
|
char *str;
|
|
enum glob_pattern_type type;
|
|
struct glob_pattern *next;
|
|
};
|
|
|
|
static void glob_free_pattern(struct glob_pattern *list);
|
|
|
|
static struct glob_pattern *
|
|
glob_make_pattern(const char *p, int flags, rb_encoding *enc)
|
|
{
|
|
struct glob_pattern *list, *tmp, **tail = &list;
|
|
int dirsep = 0; /* pattern is terminated with '/' */
|
|
|
|
while (*p) {
|
|
tmp = GLOB_ALLOC(struct glob_pattern);
|
|
if (!tmp) goto error;
|
|
if (p[0] == '*' && p[1] == '*' && p[2] == '/') {
|
|
/* fold continuous RECURSIVEs (needed in glob_helper) */
|
|
do { p += 3; } while (p[0] == '*' && p[1] == '*' && p[2] == '/');
|
|
tmp->type = RECURSIVE;
|
|
tmp->str = 0;
|
|
dirsep = 1;
|
|
}
|
|
else {
|
|
const char *m = find_dirsep(p, flags, enc);
|
|
char *buf = GLOB_ALLOC_N(char, m-p+1);
|
|
if (!buf) {
|
|
GLOB_FREE(tmp);
|
|
goto error;
|
|
}
|
|
memcpy(buf, p, m-p);
|
|
buf[m-p] = '\0';
|
|
tmp->type = has_magic(buf, flags, enc) ? MAGICAL : PLAIN;
|
|
tmp->str = buf;
|
|
if (*m) {
|
|
dirsep = 1;
|
|
p = m + 1;
|
|
}
|
|
else {
|
|
dirsep = 0;
|
|
p = m;
|
|
}
|
|
}
|
|
*tail = tmp;
|
|
tail = &tmp->next;
|
|
}
|
|
|
|
tmp = GLOB_ALLOC(struct glob_pattern);
|
|
if (!tmp) {
|
|
error:
|
|
*tail = 0;
|
|
glob_free_pattern(list);
|
|
return 0;
|
|
}
|
|
tmp->type = dirsep ? MATCH_DIR : MATCH_ALL;
|
|
tmp->str = 0;
|
|
*tail = tmp;
|
|
tmp->next = 0;
|
|
|
|
return list;
|
|
}
|
|
|
|
static void
|
|
glob_free_pattern(struct glob_pattern *list)
|
|
{
|
|
while (list) {
|
|
struct glob_pattern *tmp = list;
|
|
list = list->next;
|
|
if (tmp->str)
|
|
GLOB_FREE(tmp->str);
|
|
GLOB_FREE(tmp);
|
|
}
|
|
}
|
|
|
|
static char *
|
|
join_path(const char *path, int dirsep, const char *name)
|
|
{
|
|
long len = strlen(path);
|
|
long len2 = strlen(name)+(dirsep?1:0)+1;
|
|
char *buf = GLOB_ALLOC_N(char, len+len2);
|
|
|
|
if (!buf) return 0;
|
|
memcpy(buf, path, len);
|
|
if (dirsep) {
|
|
buf[len++] = '/';
|
|
}
|
|
buf[len] = '\0';
|
|
strlcat(buf+len, name, len2);
|
|
return buf;
|
|
}
|
|
|
|
enum answer { YES, NO, UNKNOWN };
|
|
|
|
#ifndef S_ISDIR
|
|
# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
|
|
#endif
|
|
|
|
#ifndef S_ISLNK
|
|
# ifndef S_IFLNK
|
|
# define S_ISLNK(m) (0)
|
|
# else
|
|
# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
|
|
# endif
|
|
#endif
|
|
|
|
struct glob_args {
|
|
void (*func)(const char *, VALUE, void *);
|
|
const char *path;
|
|
VALUE value;
|
|
rb_encoding *enc;
|
|
};
|
|
|
|
static VALUE
|
|
glob_func_caller(VALUE val)
|
|
{
|
|
struct glob_args *args = (struct glob_args *)val;
|
|
|
|
(*args->func)(args->path, args->value, args->enc);
|
|
return Qnil;
|
|
}
|
|
|
|
#define glob_call_func(func, path, arg, enc) (*func)(path, arg, enc)
|
|
|
|
static int
|
|
glob_helper(
|
|
const char *path,
|
|
int dirsep, /* '/' should be placed before appending child entry's name to 'path'. */
|
|
enum answer exist, /* Does 'path' indicate an existing entry? */
|
|
enum answer isdir, /* Does 'path' indicate a directory or a symlink to a directory? */
|
|
struct glob_pattern **beg,
|
|
struct glob_pattern **end,
|
|
int flags,
|
|
ruby_glob_func *func,
|
|
VALUE arg,
|
|
rb_encoding *enc)
|
|
{
|
|
struct stat st;
|
|
int status = 0;
|
|
struct glob_pattern **cur, **new_beg, **new_end;
|
|
int plain = 0, magical = 0, recursive = 0, match_all = 0, match_dir = 0;
|
|
int escape = !(flags & FNM_NOESCAPE);
|
|
|
|
for (cur = beg; cur < end; ++cur) {
|
|
struct glob_pattern *p = *cur;
|
|
if (p->type == RECURSIVE) {
|
|
recursive = 1;
|
|
p = p->next;
|
|
}
|
|
switch (p->type) {
|
|
case PLAIN:
|
|
plain = 1;
|
|
break;
|
|
case MAGICAL:
|
|
magical = 1;
|
|
break;
|
|
case MATCH_ALL:
|
|
match_all = 1;
|
|
break;
|
|
case MATCH_DIR:
|
|
match_dir = 1;
|
|
break;
|
|
case RECURSIVE:
|
|
rb_bug("continuous RECURSIVEs");
|
|
}
|
|
}
|
|
|
|
if (*path) {
|
|
if (match_all && exist == UNKNOWN) {
|
|
if (do_lstat(path, &st, flags) == 0) {
|
|
exist = YES;
|
|
isdir = S_ISDIR(st.st_mode) ? YES : S_ISLNK(st.st_mode) ? UNKNOWN : NO;
|
|
}
|
|
else {
|
|
exist = NO;
|
|
isdir = NO;
|
|
}
|
|
}
|
|
if (match_dir && isdir == UNKNOWN) {
|
|
if (do_stat(path, &st, flags) == 0) {
|
|
exist = YES;
|
|
isdir = S_ISDIR(st.st_mode) ? YES : NO;
|
|
}
|
|
else {
|
|
exist = NO;
|
|
isdir = NO;
|
|
}
|
|
}
|
|
if (match_all && exist == YES) {
|
|
status = glob_call_func(func, path, arg, enc);
|
|
if (status) return status;
|
|
}
|
|
if (match_dir && isdir == YES) {
|
|
char *tmp = join_path(path, dirsep, "");
|
|
if (!tmp) return -1;
|
|
status = glob_call_func(func, tmp, arg, enc);
|
|
GLOB_FREE(tmp);
|
|
if (status) return status;
|
|
}
|
|
}
|
|
|
|
if (exist == NO || isdir == NO) return 0;
|
|
|
|
if (magical || recursive) {
|
|
struct dirent *dp;
|
|
DIR *dirp;
|
|
IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
|
|
dirp = do_opendir(*path ? path : ".", flags);
|
|
if (dirp == NULL) return 0;
|
|
|
|
while (READDIR(dirp, enc, &STRUCT_DIRENT(entry), dp)) {
|
|
char *buf = join_path(path, dirsep, dp->d_name);
|
|
enum answer new_isdir = UNKNOWN;
|
|
|
|
if (!buf) {
|
|
status = -1;
|
|
break;
|
|
}
|
|
if (recursive && strcmp(dp->d_name, ".") != 0 && strcmp(dp->d_name, "..") != 0
|
|
&& fnmatch("*", rb_usascii_encoding(), dp->d_name, flags) == 0) {
|
|
#ifndef _WIN32
|
|
if (do_lstat(buf, &st, flags) == 0)
|
|
new_isdir = S_ISDIR(st.st_mode) ? YES : S_ISLNK(st.st_mode) ? UNKNOWN : NO;
|
|
else
|
|
new_isdir = NO;
|
|
#else
|
|
new_isdir = dp->d_isdir ? (!dp->d_isrep ? YES : UNKNOWN) : NO;
|
|
#endif
|
|
}
|
|
|
|
new_beg = new_end = GLOB_ALLOC_N(struct glob_pattern *, (end - beg) * 2);
|
|
if (!new_beg) {
|
|
GLOB_FREE(buf);
|
|
status = -1;
|
|
break;
|
|
}
|
|
|
|
for (cur = beg; cur < end; ++cur) {
|
|
struct glob_pattern *p = *cur;
|
|
if (p->type == RECURSIVE) {
|
|
if (new_isdir == YES) /* not symlink but real directory */
|
|
*new_end++ = p; /* append recursive pattern */
|
|
p = p->next; /* 0 times recursion */
|
|
}
|
|
if (p->type == PLAIN || p->type == MAGICAL) {
|
|
if (fnmatch(p->str, enc, dp->d_name, flags) == 0)
|
|
*new_end++ = p->next;
|
|
}
|
|
}
|
|
|
|
status = glob_helper(buf, 1, YES, new_isdir, new_beg, new_end,
|
|
flags, func, arg, enc);
|
|
GLOB_FREE(buf);
|
|
GLOB_FREE(new_beg);
|
|
if (status) break;
|
|
}
|
|
|
|
closedir(dirp);
|
|
}
|
|
else if (plain) {
|
|
struct glob_pattern **copy_beg, **copy_end, **cur2;
|
|
|
|
copy_beg = copy_end = GLOB_ALLOC_N(struct glob_pattern *, end - beg);
|
|
if (!copy_beg) return -1;
|
|
for (cur = beg; cur < end; ++cur)
|
|
*copy_end++ = (*cur)->type == PLAIN ? *cur : 0;
|
|
|
|
for (cur = copy_beg; cur < copy_end; ++cur) {
|
|
if (*cur) {
|
|
char *buf;
|
|
char *name;
|
|
size_t len = strlen((*cur)->str) + 1;
|
|
name = GLOB_ALLOC_N(char, len);
|
|
if (!name) {
|
|
status = -1;
|
|
break;
|
|
}
|
|
memcpy(name, (*cur)->str, len);
|
|
if (escape) remove_backslashes(name, enc);
|
|
|
|
new_beg = new_end = GLOB_ALLOC_N(struct glob_pattern *, end - beg);
|
|
if (!new_beg) {
|
|
GLOB_FREE(name);
|
|
status = -1;
|
|
break;
|
|
}
|
|
*new_end++ = (*cur)->next;
|
|
for (cur2 = cur + 1; cur2 < copy_end; ++cur2) {
|
|
if (*cur2 && fnmatch((*cur2)->str, enc, name, flags) == 0) {
|
|
*new_end++ = (*cur2)->next;
|
|
*cur2 = 0;
|
|
}
|
|
}
|
|
|
|
buf = join_path(path, dirsep, name);
|
|
GLOB_FREE(name);
|
|
if (!buf) {
|
|
GLOB_FREE(new_beg);
|
|
status = -1;
|
|
break;
|
|
}
|
|
status = glob_helper(buf, 1, UNKNOWN, UNKNOWN, new_beg,
|
|
new_end, flags, func, arg, enc);
|
|
GLOB_FREE(buf);
|
|
GLOB_FREE(new_beg);
|
|
if (status) break;
|
|
}
|
|
}
|
|
|
|
GLOB_FREE(copy_beg);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
ruby_glob0(const char *path, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
|
|
{
|
|
struct glob_pattern *list;
|
|
const char *root, *start;
|
|
char *buf;
|
|
size_t n;
|
|
int status;
|
|
|
|
start = root = path;
|
|
flags |= FNM_SYSCASE;
|
|
#if defined DOSISH
|
|
root = rb_path_skip_prefix(root);
|
|
#endif
|
|
|
|
if (root && *root == '/') root++;
|
|
|
|
n = root - start;
|
|
buf = GLOB_ALLOC_N(char, n + 1);
|
|
if (!buf) return -1;
|
|
MEMCPY(buf, start, char, n);
|
|
buf[n] = '\0';
|
|
|
|
list = glob_make_pattern(root, flags, enc);
|
|
if (!list) {
|
|
GLOB_FREE(buf);
|
|
return -1;
|
|
}
|
|
status = glob_helper(buf, 0, UNKNOWN, UNKNOWN, &list, &list + 1, flags, func, arg, enc);
|
|
glob_free_pattern(list);
|
|
GLOB_FREE(buf);
|
|
|
|
return status;
|
|
}
|
|
|
|
int
|
|
ruby_glob(const char *path, int flags, ruby_glob_func *func, VALUE arg)
|
|
{
|
|
return ruby_glob0(path, flags & ~GLOB_VERBOSE, func, arg,
|
|
rb_ascii8bit_encoding());
|
|
}
|
|
|
|
static int
|
|
rb_glob_caller(const char *path, VALUE a, void *enc)
|
|
{
|
|
int status;
|
|
struct glob_args *args = (struct glob_args *)a;
|
|
|
|
args->path = path;
|
|
rb_protect(glob_func_caller, a, &status);
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
rb_glob2(const char *path, int flags,
|
|
void (*func)(const char *, VALUE, void *), VALUE arg,
|
|
rb_encoding* enc)
|
|
{
|
|
struct glob_args args;
|
|
|
|
args.func = func;
|
|
args.value = arg;
|
|
args.enc = enc;
|
|
|
|
if (flags & FNM_SYSCASE) {
|
|
rb_warning("Dir.glob() ignores File::FNM_CASEFOLD");
|
|
}
|
|
|
|
return ruby_glob0(path, flags | GLOB_VERBOSE, rb_glob_caller, (VALUE)&args,
|
|
enc);
|
|
}
|
|
|
|
void
|
|
rb_glob(const char *path, void (*func)(const char *, VALUE, void *), VALUE arg)
|
|
{
|
|
int status = rb_glob2(path, 0, func, arg, rb_ascii8bit_encoding());
|
|
if (status) GLOB_JUMP_TAG(status);
|
|
}
|
|
|
|
static void
|
|
push_pattern(const char *path, VALUE ary, void *enc)
|
|
{
|
|
rb_ary_push(ary, rb_external_str_new_with_enc(path, strlen(path), enc));
|
|
}
|
|
|
|
static int
|
|
ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
|
|
rb_encoding *enc)
|
|
{
|
|
const int escape = !(flags & FNM_NOESCAPE);
|
|
const char *p = str;
|
|
const char *pend = p + strlen(p);
|
|
const char *s = p;
|
|
const char *lbrace = 0, *rbrace = 0;
|
|
int nest = 0, status = 0;
|
|
|
|
while (*p) {
|
|
if (*p == '{' && nest++ == 0) {
|
|
lbrace = p;
|
|
}
|
|
if (*p == '}' && --nest <= 0) {
|
|
rbrace = p;
|
|
break;
|
|
}
|
|
if (*p == '\\' && escape) {
|
|
if (!*++p) break;
|
|
}
|
|
Inc(p, pend, enc);
|
|
}
|
|
|
|
if (lbrace && rbrace) {
|
|
size_t len = strlen(s) + 1;
|
|
char *buf = GLOB_ALLOC_N(char, len);
|
|
long shift;
|
|
|
|
if (!buf) return -1;
|
|
memcpy(buf, s, lbrace-s);
|
|
shift = (lbrace-s);
|
|
p = lbrace;
|
|
while (p < rbrace) {
|
|
const char *t = ++p;
|
|
nest = 0;
|
|
while (p < rbrace && !(*p == ',' && nest == 0)) {
|
|
if (*p == '{') nest++;
|
|
if (*p == '}') nest--;
|
|
if (*p == '\\' && escape) {
|
|
if (++p == rbrace) break;
|
|
}
|
|
Inc(p, pend, enc);
|
|
}
|
|
memcpy(buf+shift, t, p-t);
|
|
strlcpy(buf+shift+(p-t), rbrace+1, len-(shift+(p-t)));
|
|
status = ruby_brace_expand(buf, flags, func, arg, enc);
|
|
if (status) break;
|
|
}
|
|
GLOB_FREE(buf);
|
|
}
|
|
else if (!lbrace && !rbrace) {
|
|
status = (*func)(s, arg, enc);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
struct brace_args {
|
|
ruby_glob_func *func;
|
|
VALUE value;
|
|
int flags;
|
|
};
|
|
|
|
static int
|
|
glob_brace(const char *path, VALUE val, void *enc)
|
|
{
|
|
struct brace_args *arg = (struct brace_args *)val;
|
|
|
|
return ruby_glob0(path, arg->flags, arg->func, arg->value, enc);
|
|
}
|
|
|
|
static int
|
|
ruby_brace_glob0(const char *str, int flags, ruby_glob_func *func, VALUE arg,
|
|
rb_encoding* enc)
|
|
{
|
|
struct brace_args args;
|
|
|
|
args.func = func;
|
|
args.value = arg;
|
|
args.flags = flags;
|
|
return ruby_brace_expand(str, flags, glob_brace, (VALUE)&args, enc);
|
|
}
|
|
|
|
int
|
|
ruby_brace_glob(const char *str, int flags, ruby_glob_func *func, VALUE arg)
|
|
{
|
|
return ruby_brace_glob0(str, flags & ~GLOB_VERBOSE, func, arg,
|
|
rb_ascii8bit_encoding());
|
|
}
|
|
|
|
static int
|
|
push_glob(VALUE ary, VALUE str, int flags)
|
|
{
|
|
struct glob_args args;
|
|
rb_encoding *enc = rb_enc_get(str);
|
|
|
|
if (enc == rb_usascii_encoding()) enc = rb_filesystem_encoding();
|
|
args.func = push_pattern;
|
|
args.value = ary;
|
|
args.enc = enc;
|
|
|
|
return ruby_brace_glob0(RSTRING_PTR(str), flags | GLOB_VERBOSE,
|
|
rb_glob_caller, (VALUE)&args, enc);
|
|
}
|
|
|
|
static VALUE
|
|
rb_push_glob(VALUE str, int flags) /* '\0' is delimiter */
|
|
{
|
|
long offset = 0;
|
|
VALUE ary;
|
|
|
|
GlobPathValue(str, TRUE);
|
|
ary = rb_ary_new();
|
|
|
|
while (offset < RSTRING_LEN(str)) {
|
|
char *p, *pend;
|
|
int status;
|
|
p = RSTRING_PTR(str) + offset;
|
|
status = push_glob(ary, rb_enc_str_new(p, strlen(p), rb_enc_get(str)),
|
|
flags);
|
|
if (status) GLOB_JUMP_TAG(status);
|
|
if (offset >= RSTRING_LEN(str)) break;
|
|
p += strlen(p) + 1;
|
|
pend = RSTRING_PTR(str) + RSTRING_LEN(str);
|
|
while (p < pend && !*p)
|
|
p++;
|
|
offset = p - RSTRING_PTR(str);
|
|
}
|
|
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
dir_globs(long argc, VALUE *argv, int flags)
|
|
{
|
|
VALUE ary = rb_ary_new();
|
|
long i;
|
|
|
|
for (i = 0; i < argc; ++i) {
|
|
int status;
|
|
VALUE str = argv[i];
|
|
GlobPathValue(str, TRUE);
|
|
status = push_glob(ary, str, flags);
|
|
if (status) GLOB_JUMP_TAG(status);
|
|
}
|
|
|
|
return ary;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir[ array ] => array
|
|
* Dir[ string [, string ...] ] => array
|
|
*
|
|
* Equivalent to calling
|
|
* <code>Dir.glob(</code><i>array,</i><code>0)</code> and
|
|
* <code>Dir.glob([</code><i>string,...</i><code>],0)</code>.
|
|
*
|
|
*/
|
|
static VALUE
|
|
dir_s_aref(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
if (argc == 1) {
|
|
return rb_push_glob(argv[0], 0);
|
|
}
|
|
return dir_globs(argc, argv, 0);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.glob( pattern, [flags] ) => array
|
|
* Dir.glob( pattern, [flags] ) {| filename | block } => nil
|
|
*
|
|
* Returns the filenames found by expanding <i>pattern</i> which is
|
|
* an +Array+ of the patterns or the pattern +String+, either as an
|
|
* <i>array</i> or as parameters to the block. Note that this pattern
|
|
* is not a regexp (it's closer to a shell glob). See
|
|
* <code>File::fnmatch</code> for the meaning of the <i>flags</i>
|
|
* parameter. Note that case sensitivity depends on your system (so
|
|
* <code>File::FNM_CASEFOLD</code> is ignored)
|
|
*
|
|
* <code>*</code>:: Matches any file. Can be restricted by
|
|
* other values in the glob. <code>*</code>
|
|
* will match all files; <code>c*</code> will
|
|
* match all files beginning with
|
|
* <code>c</code>; <code>*c</code> will match
|
|
* all files ending with <code>c</code>; and
|
|
* <code>\*c\*</code> will match all files that
|
|
* have <code>c</code> in them (including at
|
|
* the beginning or end). Equivalent to
|
|
* <code>/ .* /x</code> in regexp.
|
|
* <code>**</code>:: Matches directories recursively.
|
|
* <code>?</code>:: Matches any one character. Equivalent to
|
|
* <code>/.{1}/</code> in regexp.
|
|
* <code>[set]</code>:: Matches any one character in +set+.
|
|
* Behaves exactly like character sets in
|
|
* Regexp, including set negation
|
|
* (<code>[^a-z]</code>).
|
|
* <code>{p,q}</code>:: Matches either literal <code>p</code> or
|
|
* literal <code>q</code>. Matching literals
|
|
* may be more than one character in length.
|
|
* More than two literals may be specified.
|
|
* Equivalent to pattern alternation in
|
|
* regexp.
|
|
* <code>\</code>:: Escapes the next metacharacter.
|
|
*
|
|
* Dir["config.?"] #=> ["config.h"]
|
|
* Dir.glob("config.?") #=> ["config.h"]
|
|
* Dir.glob("*.[a-z][a-z]") #=> ["main.rb"]
|
|
* Dir.glob("*.[^r]*") #=> ["config.h"]
|
|
* Dir.glob("*.{rb,h}") #=> ["main.rb", "config.h"]
|
|
* Dir.glob("*") #=> ["config.h", "main.rb"]
|
|
* Dir.glob("*", File::FNM_DOTMATCH) #=> [".", "..", "config.h", "main.rb"]
|
|
*
|
|
* rbfiles = File.join("**", "*.rb")
|
|
* Dir.glob(rbfiles) #=> ["main.rb",
|
|
* # "lib/song.rb",
|
|
* # "lib/song/karaoke.rb"]
|
|
* libdirs = File.join("**", "lib")
|
|
* Dir.glob(libdirs) #=> ["lib"]
|
|
*
|
|
* librbfiles = File.join("**", "lib", "**", "*.rb")
|
|
* Dir.glob(librbfiles) #=> ["lib/song.rb",
|
|
* # "lib/song/karaoke.rb"]
|
|
*
|
|
* librbfiles = File.join("**", "lib", "*.rb")
|
|
* Dir.glob(librbfiles) #=> ["lib/song.rb"]
|
|
*/
|
|
static VALUE
|
|
dir_s_glob(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE str, rflags, ary;
|
|
int flags;
|
|
|
|
if (rb_scan_args(argc, argv, "11", &str, &rflags) == 2)
|
|
flags = NUM2INT(rflags);
|
|
else
|
|
flags = 0;
|
|
|
|
ary = rb_check_array_type(str);
|
|
if (NIL_P(ary)) {
|
|
ary = rb_push_glob(str, flags);
|
|
}
|
|
else {
|
|
volatile VALUE v = ary;
|
|
ary = dir_globs(RARRAY_LEN(v), RARRAY_PTR(v), flags);
|
|
}
|
|
|
|
if (rb_block_given_p()) {
|
|
rb_ary_each(ary);
|
|
return Qnil;
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
dir_open_dir(int argc, VALUE *argv)
|
|
{
|
|
VALUE dir = rb_funcall2(rb_cDir, rb_intern("open"), argc, argv);
|
|
struct dir_data *dirp;
|
|
|
|
TypedData_Get_Struct(dir, struct dir_data, &dir_data_type, dirp);
|
|
return dir;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.foreach( dirname ) {| filename | block } => nil
|
|
*
|
|
* Calls the block once for each entry in the named directory, passing
|
|
* the filename of each entry as a parameter to the block.
|
|
*
|
|
* Dir.foreach("testdir") {|x| puts "Got #{x}" }
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Got .
|
|
* Got ..
|
|
* Got config.h
|
|
* Got main.rb
|
|
*
|
|
*/
|
|
static VALUE
|
|
dir_foreach(int argc, VALUE *argv, VALUE io)
|
|
{
|
|
VALUE dir;
|
|
|
|
RETURN_ENUMERATOR(io, argc, argv);
|
|
dir = dir_open_dir(argc, argv);
|
|
rb_ensure(dir_each, dir, dir_close, dir);
|
|
return Qnil;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.entries( dirname ) => array
|
|
*
|
|
* Returns an array containing all of the filenames in the given
|
|
* directory. Will raise a <code>SystemCallError</code> if the named
|
|
* directory doesn't exist.
|
|
*
|
|
* Dir.entries("testdir") #=> [".", "..", "config.h", "main.rb"]
|
|
*
|
|
*/
|
|
static VALUE
|
|
dir_entries(int argc, VALUE *argv, VALUE io)
|
|
{
|
|
VALUE dir;
|
|
|
|
dir = dir_open_dir(argc, argv);
|
|
return rb_ensure(rb_Array, dir, dir_close, dir);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* File.fnmatch( pattern, path, [flags] ) => (true or false)
|
|
* File.fnmatch?( pattern, path, [flags] ) => (true or false)
|
|
*
|
|
* Returns true if <i>path</i> matches against <i>pattern</i> The
|
|
* pattern is not a regular expression; instead it follows rules
|
|
* similar to shell filename globbing. It may contain the following
|
|
* metacharacters:
|
|
*
|
|
* <code>*</code>:: Matches any file. Can be restricted by
|
|
* other values in the glob. <code>*</code>
|
|
* will match all files; <code>c*</code> will
|
|
* match all files beginning with
|
|
* <code>c</code>; <code>*c</code> will match
|
|
* all files ending with <code>c</code>; and
|
|
* <code>*c*</code> will match all files that
|
|
* have <code>c</code> in them (including at
|
|
* the beginning or end). Equivalent to
|
|
* <code>/ .* /x</code> in regexp.
|
|
* <code>**</code>:: Matches directories recursively or files
|
|
* expansively.
|
|
* <code>?</code>:: Matches any one character. Equivalent to
|
|
* <code>/.{1}/</code> in regexp.
|
|
* <code>[set]</code>:: Matches any one character in +set+.
|
|
* Behaves exactly like character sets in
|
|
* Regexp, including set negation
|
|
* (<code>[^a-z]</code>).
|
|
* <code>\</code>:: Escapes the next metacharacter.
|
|
*
|
|
* <i>flags</i> is a bitwise OR of the <code>FNM_xxx</code>
|
|
* parameters. The same glob pattern and flags are used by
|
|
* <code>Dir::glob</code>.
|
|
*
|
|
* File.fnmatch('cat', 'cat') #=> true # match entire string
|
|
* File.fnmatch('cat', 'category') #=> false # only match partial string
|
|
* File.fnmatch('c{at,ub}s', 'cats') #=> false # { } isn't supported
|
|
*
|
|
* File.fnmatch('c?t', 'cat') #=> true # '?' match only 1 character
|
|
* File.fnmatch('c??t', 'cat') #=> false # ditto
|
|
* File.fnmatch('c*', 'cats') #=> true # '*' match 0 or more characters
|
|
* File.fnmatch('c*t', 'c/a/b/t') #=> true # ditto
|
|
* File.fnmatch('ca[a-z]', 'cat') #=> true # inclusive bracket expression
|
|
* File.fnmatch('ca[^t]', 'cat') #=> false # exclusive bracket expression ('^' or '!')
|
|
*
|
|
* File.fnmatch('cat', 'CAT') #=> false # case sensitive
|
|
* File.fnmatch('cat', 'CAT', File::FNM_CASEFOLD) #=> true # case insensitive
|
|
*
|
|
* File.fnmatch('?', '/', File::FNM_PATHNAME) #=> false # wildcard doesn't match '/' on FNM_PATHNAME
|
|
* File.fnmatch('*', '/', File::FNM_PATHNAME) #=> false # ditto
|
|
* File.fnmatch('[/]', '/', File::FNM_PATHNAME) #=> false # ditto
|
|
*
|
|
* File.fnmatch('\?', '?') #=> true # escaped wildcard becomes ordinary
|
|
* File.fnmatch('\a', 'a') #=> true # escaped ordinary remains ordinary
|
|
* File.fnmatch('\a', '\a', File::FNM_NOESCAPE) #=> true # FNM_NOESACPE makes '\' ordinary
|
|
* File.fnmatch('[\?]', '?') #=> true # can escape inside bracket expression
|
|
*
|
|
* File.fnmatch('*', '.profile') #=> false # wildcard doesn't match leading
|
|
* File.fnmatch('*', '.profile', File::FNM_DOTMATCH) #=> true # period by default.
|
|
* File.fnmatch('.*', '.profile') #=> true
|
|
*
|
|
* rbfiles = '**' '/' '*.rb' # you don't have to do like this. just write in single string.
|
|
* File.fnmatch(rbfiles, 'main.rb') #=> false
|
|
* File.fnmatch(rbfiles, './main.rb') #=> false
|
|
* File.fnmatch(rbfiles, 'lib/song.rb') #=> true
|
|
* File.fnmatch('**.rb', 'main.rb') #=> true
|
|
* File.fnmatch('**.rb', './main.rb') #=> false
|
|
* File.fnmatch('**.rb', 'lib/song.rb') #=> true
|
|
* File.fnmatch('*', 'dave/.profile') #=> true
|
|
*
|
|
* pattern = '*' '/' '*'
|
|
* File.fnmatch(pattern, 'dave/.profile', File::FNM_PATHNAME) #=> false
|
|
* File.fnmatch(pattern, 'dave/.profile', File::FNM_PATHNAME | File::FNM_DOTMATCH) #=> true
|
|
*
|
|
* pattern = '**' '/' 'foo'
|
|
* File.fnmatch(pattern, 'a/b/c/foo', File::FNM_PATHNAME) #=> true
|
|
* File.fnmatch(pattern, '/a/b/c/foo', File::FNM_PATHNAME) #=> true
|
|
* File.fnmatch(pattern, 'c:/a/b/c/foo', File::FNM_PATHNAME) #=> true
|
|
* File.fnmatch(pattern, 'a/.b/c/foo', File::FNM_PATHNAME) #=> false
|
|
* File.fnmatch(pattern, 'a/.b/c/foo', File::FNM_PATHNAME | File::FNM_DOTMATCH) #=> true
|
|
*/
|
|
static VALUE
|
|
file_s_fnmatch(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE pattern, path;
|
|
VALUE rflags;
|
|
int flags;
|
|
|
|
if (rb_scan_args(argc, argv, "21", &pattern, &path, &rflags) == 3)
|
|
flags = NUM2INT(rflags);
|
|
else
|
|
flags = 0;
|
|
|
|
StringValue(pattern);
|
|
FilePathStringValue(path);
|
|
|
|
if (fnmatch(RSTRING_PTR(pattern), rb_enc_get(pattern), RSTRING_PTR(path),
|
|
flags) == 0)
|
|
return Qtrue;
|
|
|
|
return Qfalse;
|
|
}
|
|
|
|
VALUE rb_home_dir(const char *user, VALUE result);
|
|
|
|
/*
|
|
* call-seq:
|
|
* Dir.home() => "/home/me"
|
|
* Dir.home("root") => "/root"
|
|
*
|
|
* Returns the home directory of the current user or the named user
|
|
* if given.
|
|
*/
|
|
static VALUE
|
|
dir_s_home(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE user;
|
|
const char *u = 0;
|
|
|
|
rb_scan_args(argc, argv, "01", &user);
|
|
if (!NIL_P(user)) {
|
|
SafeStringValue(user);
|
|
u = StringValueCStr(user);
|
|
}
|
|
return rb_home_dir(u, rb_str_new(0, 0));
|
|
}
|
|
|
|
/*
|
|
* Objects of class <code>Dir</code> are directory streams representing
|
|
* directories in the underlying file system. They provide a variety of
|
|
* ways to list directories and their contents. See also
|
|
* <code>File</code>.
|
|
*
|
|
* The directory used in these examples contains the two regular files
|
|
* (<code>config.h</code> and <code>main.rb</code>), the parent
|
|
* directory (<code>..</code>), and the directory itself
|
|
* (<code>.</code>).
|
|
*/
|
|
void
|
|
Init_Dir(void)
|
|
{
|
|
rb_cDir = rb_define_class("Dir", rb_cObject);
|
|
|
|
rb_include_module(rb_cDir, rb_mEnumerable);
|
|
|
|
rb_define_alloc_func(rb_cDir, dir_s_alloc);
|
|
rb_define_singleton_method(rb_cDir, "open", dir_s_open, -1);
|
|
rb_define_singleton_method(rb_cDir, "foreach", dir_foreach, -1);
|
|
rb_define_singleton_method(rb_cDir, "entries", dir_entries, -1);
|
|
|
|
rb_define_method(rb_cDir,"initialize", dir_initialize, -1);
|
|
rb_define_method(rb_cDir,"path", dir_path, 0);
|
|
rb_define_method(rb_cDir,"to_path", dir_path, 0);
|
|
rb_define_method(rb_cDir,"inspect", dir_inspect, 0);
|
|
rb_define_method(rb_cDir,"read", dir_read, 0);
|
|
rb_define_method(rb_cDir,"each", dir_each, 0);
|
|
rb_define_method(rb_cDir,"rewind", dir_rewind, 0);
|
|
rb_define_method(rb_cDir,"tell", dir_tell, 0);
|
|
rb_define_method(rb_cDir,"seek", dir_seek, 1);
|
|
rb_define_method(rb_cDir,"pos", dir_tell, 0);
|
|
rb_define_method(rb_cDir,"pos=", dir_set_pos, 1);
|
|
rb_define_method(rb_cDir,"close", dir_close, 0);
|
|
|
|
rb_define_singleton_method(rb_cDir,"chdir", dir_s_chdir, -1);
|
|
rb_define_singleton_method(rb_cDir,"getwd", dir_s_getwd, 0);
|
|
rb_define_singleton_method(rb_cDir,"pwd", dir_s_getwd, 0);
|
|
rb_define_singleton_method(rb_cDir,"chroot", dir_s_chroot, 1);
|
|
rb_define_singleton_method(rb_cDir,"mkdir", dir_s_mkdir, -1);
|
|
rb_define_singleton_method(rb_cDir,"rmdir", dir_s_rmdir, 1);
|
|
rb_define_singleton_method(rb_cDir,"delete", dir_s_rmdir, 1);
|
|
rb_define_singleton_method(rb_cDir,"unlink", dir_s_rmdir, 1);
|
|
rb_define_singleton_method(rb_cDir,"home", dir_s_home, -1);
|
|
|
|
rb_define_singleton_method(rb_cDir,"glob", dir_s_glob, -1);
|
|
rb_define_singleton_method(rb_cDir,"[]", dir_s_aref, -1);
|
|
rb_define_singleton_method(rb_cDir,"exist?", rb_file_directory_p, 1); /* in file.c */
|
|
rb_define_singleton_method(rb_cDir,"exists?", rb_file_directory_p, 1); /* in file.c */
|
|
|
|
rb_define_singleton_method(rb_cFile,"fnmatch", file_s_fnmatch, -1);
|
|
rb_define_singleton_method(rb_cFile,"fnmatch?", file_s_fnmatch, -1);
|
|
|
|
rb_file_const("FNM_NOESCAPE", INT2FIX(FNM_NOESCAPE));
|
|
rb_file_const("FNM_PATHNAME", INT2FIX(FNM_PATHNAME));
|
|
rb_file_const("FNM_DOTMATCH", INT2FIX(FNM_DOTMATCH));
|
|
rb_file_const("FNM_CASEFOLD", INT2FIX(FNM_CASEFOLD));
|
|
rb_file_const("FNM_SYSCASE", INT2FIX(FNM_SYSCASE));
|
|
}
|