ccdff3ebbf
better than before, and add support for the new --from0 option (which changes the line separator to a null).
433 lines
10 KiB
C
433 lines
10 KiB
C
/* -*- c-file-style: "linux" -*-
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*
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* Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
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* Copyright (C) 1996 by Paul Mackerras
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* Copyright (C) 2002 by Martin Pool
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* a lot of this stuff was originally derived from GNU tar, although
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it has now changed so much that it is hard to tell :) */
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/* include/exclude cluestick added by Martin Pool <mbp@samba.org> */
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#include "rsync.h"
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extern int verbose;
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extern int delete_mode;
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static struct exclude_struct **exclude_list;
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/** Build an exclude structure given a exclude pattern */
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static struct exclude_struct *make_exclude(const char *pattern, int include)
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{
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struct exclude_struct *ret;
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ret = (struct exclude_struct *)malloc(sizeof(*ret));
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if (!ret) out_of_memory("make_exclude");
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memset(ret, 0, sizeof(*ret));
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if (strncmp(pattern,"- ",2) == 0) {
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pattern += 2;
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} else if (strncmp(pattern,"+ ",2) == 0) {
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ret->include = 1;
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pattern += 2;
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} else {
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ret->include = include;
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}
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ret->pattern = strdup(pattern);
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if (!ret->pattern) out_of_memory("make_exclude");
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if (strpbrk(pattern, "*[?")) {
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ret->regular_exp = 1;
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ret->fnmatch_flags = FNM_PATHNAME;
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if (strstr(pattern, "**")) {
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static int tested;
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if (!tested) {
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tested = 1;
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if (fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME)==0) {
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rprintf(FERROR,"WARNING: fnmatch FNM_PATHNAME is broken on your system\n");
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}
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}
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ret->fnmatch_flags = 0;
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}
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}
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if (strlen(pattern) > 1 && pattern[strlen(pattern)-1] == '/') {
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ret->pattern[strlen(pattern)-1] = 0;
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ret->directory = 1;
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}
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if (!strchr(ret->pattern,'/')) {
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ret->local = 1;
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}
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return ret;
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}
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static void free_exclude(struct exclude_struct *ex)
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{
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free(ex->pattern);
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memset(ex,0,sizeof(*ex));
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free(ex);
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}
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static int check_one_exclude(char *name, struct exclude_struct *ex,
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STRUCT_STAT *st)
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{
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char *p;
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int match_start=0;
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char *pattern = ex->pattern;
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if (ex->local && (p=strrchr(name,'/')))
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name = p+1;
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if (!name[0]) return 0;
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if (ex->directory && !S_ISDIR(st->st_mode)) return 0;
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if (*pattern == '/' && *name != '/') {
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match_start = 1;
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pattern++;
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}
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if (ex->regular_exp) {
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if (fnmatch(pattern, name, ex->fnmatch_flags) == 0) {
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return 1;
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}
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} else {
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int l1 = strlen(name);
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int l2 = strlen(pattern);
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if (l2 <= l1 &&
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strcmp(name+(l1-l2),pattern) == 0 &&
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(l1==l2 || (!match_start && name[l1-(l2+1)] == '/'))) {
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return 1;
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}
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}
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return 0;
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}
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static void report_exclude_result(char const *name,
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struct exclude_struct const *ent,
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STRUCT_STAT const *st)
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{
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/* If a trailing slash is present to match only directories,
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* then it is stripped out by make_exclude. So as a special
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* case we add it back in here. */
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if (verbose >= 2)
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rprintf(FINFO, "%s %s %s because of pattern %s%s\n",
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ent->include ? "including" : "excluding",
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S_ISDIR(st->st_mode) ? "directory" : "file",
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name, ent->pattern,
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ent->directory ? "/" : "");
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}
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/*
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* Return true if file NAME is defined to be excluded by either
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* LOCAL_EXCLUDE_LIST or the globals EXCLUDE_LIST.
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*/
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int check_exclude(char *name, struct exclude_struct **local_exclude_list,
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STRUCT_STAT *st)
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{
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int n;
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struct exclude_struct *ent;
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if (name && (name[0] == '.') && !name[1])
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/* never exclude '.', even if somebody does --exclude '*' */
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return 0;
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if (exclude_list) {
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for (n=0; exclude_list[n]; n++) {
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ent = exclude_list[n];
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if (check_one_exclude(name, ent, st)) {
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report_exclude_result(name, ent, st);
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return !ent->include;
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}
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}
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}
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if (local_exclude_list) {
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for (n=0; local_exclude_list[n]; n++) {
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ent = local_exclude_list[n];
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if (check_one_exclude(name, ent, st)) {
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report_exclude_result(name, ent, st);
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return !ent->include;
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}
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}
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}
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return 0;
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}
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void add_exclude_list(const char *pattern, struct exclude_struct ***list, int include)
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{
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int len=0;
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if (list && *list)
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for (; (*list)[len]; len++) ;
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if (strcmp(pattern,"!") == 0) {
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if (verbose > 2)
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rprintf(FINFO,"clearing exclude list\n");
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while ((len)--) {
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free_exclude((*list)[len]);
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}
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free((*list));
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*list = NULL;
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return;
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}
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*list = (struct exclude_struct **)Realloc(*list,sizeof(struct exclude_struct *)*(len+2));
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if (!*list || !((*list)[len] = make_exclude(pattern, include)))
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out_of_memory("add_exclude");
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if (verbose > 2) {
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rprintf(FINFO,"add_exclude(%s,%s)\n",pattern,
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include ? "include" : "exclude");
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}
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(*list)[len+1] = NULL;
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}
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void add_exclude(const char *pattern, int include)
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{
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add_exclude_list(pattern,&exclude_list, include);
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}
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struct exclude_struct **make_exclude_list(const char *fname,
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struct exclude_struct **list1,
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int fatal, int include)
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{
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struct exclude_struct **list=list1;
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int fd;
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char line[MAXPATHLEN];
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char *eob = line + MAXPATHLEN - 1;
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extern int eol_nulls;
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if (strcmp(fname, "-") != 0)
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fd = open(fname, O_RDONLY|O_BINARY);
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else
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fd = 0;
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if (fd < 0) {
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if (fatal) {
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rsyserr(FERROR, errno,
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"failed to open %s file %s",
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include ? "include" : "exclude",
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fname);
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exit_cleanup(RERR_FILEIO);
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}
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return list;
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}
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while (1) {
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char ch, *s = line;
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int cnt;
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while (1) {
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if ((cnt = read(fd, &ch, 1)) <= 0) {
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if (cnt < 0 && errno == EINTR)
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continue;
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break;
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}
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if (eol_nulls? !ch : (ch == '\n' || ch == '\r'))
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break;
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if (s < eob)
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*s++ = ch;
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}
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*s = '\0';
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if (*line && *line != ';' && *line != '#') {
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/* Skip lines starting with semicolon or pound.
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* It probably wouldn't cause any harm to not skip
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* them but there's no need to save them. */
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add_exclude_list(line,&list,include);
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}
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if (cnt <= 0)
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break;
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}
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close(fd);
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return list;
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}
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void add_exclude_file(const char *fname, int fatal, int include)
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{
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if (!fname || !*fname) return;
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exclude_list = make_exclude_list(fname,exclude_list,fatal,include);
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}
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void send_exclude_list(int f)
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{
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int i;
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extern int remote_version;
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extern int list_only, recurse;
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/* This is a complete hack - blame Rusty.
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*
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* FIXME: This pattern shows up in the output of
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* report_exclude_result(), which is not ideal. */
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if (list_only && !recurse) {
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add_exclude("/*/*", 0);
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}
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if (!exclude_list) {
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write_int(f,0);
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return;
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}
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for (i=0;exclude_list[i];i++) {
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int l;
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char pattern[MAXPATHLEN];
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strlcpy(pattern,exclude_list[i]->pattern,sizeof(pattern));
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if (exclude_list[i]->directory) strlcat(pattern,"/", sizeof(pattern));
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l = strlen(pattern);
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if (l == 0) continue;
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if (exclude_list[i]->include) {
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if (remote_version < 19) {
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rprintf(FERROR,"remote rsync does not support include syntax - aborting\n");
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exit_cleanup(RERR_UNSUPPORTED);
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}
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write_int(f,l+2);
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write_buf(f,"+ ",2);
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} else {
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write_int(f,l);
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}
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write_buf(f,pattern,l);
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}
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write_int(f,0);
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}
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void recv_exclude_list(int f)
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{
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char line[MAXPATHLEN];
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unsigned int l;
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while ((l=read_int(f))) {
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if (l >= MAXPATHLEN) overflow("recv_exclude_list");
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read_sbuf(f,line,l);
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add_exclude(line,0);
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}
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}
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/* Get the next include/exclude arg from the string. It works in a similar way
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** to strtok - initially an arg is sent over, from then on NULL. This
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** routine takes into account any +/- in the strings and does not
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** consider the space following it as a delimeter.
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*/
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char *get_exclude_tok(char *p)
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{
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static char *s;
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static int more;
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char *t;
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if (p) {
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s=p;
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if (*p)
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more=1;
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}
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if (!more)
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return(NULL);
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/* Skip over any initial spaces */
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while (isspace(* (unsigned char *) s))
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s++;
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/* Are we at the end of the string? */
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if (*s) {
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/* remember the beginning of the token */
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t=s;
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/* Is this a '+' or '-' followed by a space (not whitespace)? */
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if ((*s=='+' || *s=='-') && *(s+1)==' ')
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s+=2;
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/* Skip to the next space or the end of the string */
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while (!isspace(* (unsigned char *) s) && *s != '\0')
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s++;
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} else {
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t=NULL;
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}
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/* Have we reached the end of the string? */
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if (*s)
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*s++='\0';
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else
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more=0;
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return(t);
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}
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void add_exclude_line(char *p)
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{
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char *tok;
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if (!p || !*p) return;
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p = strdup(p);
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if (!p) out_of_memory("add_exclude_line");
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for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL))
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add_exclude(tok, 0);
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free(p);
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}
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void add_include_line(char *p)
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{
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char *tok;
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if (!p || !*p) return;
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p = strdup(p);
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if (!p) out_of_memory("add_include_line");
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for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL))
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add_exclude(tok, 1);
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free(p);
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}
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static char *cvs_ignore_list[] = {
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"RCS/", "SCCS/", "CVS/", ".svn/", "CVS.adm", "RCSLOG", "cvslog.*",
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"tags", "TAGS", ".make.state", ".nse_depinfo",
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"*~", "#*", ".#*", ", *", "*.old", "*.bak", "*.BAK", "*.orig",
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"*.rej", ".del-*", "*.a", "*.o", "*.obj", "*.so", "*.Z", "*.elc", "*.ln",
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"core", NULL};
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void add_cvs_excludes(void)
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{
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char fname[MAXPATHLEN];
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char *p;
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int i;
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for (i=0; cvs_ignore_list[i]; i++)
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add_exclude(cvs_ignore_list[i], 0);
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if ((p=getenv("HOME")) && strlen(p) < (MAXPATHLEN-12)) {
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snprintf(fname,sizeof(fname), "%s/.cvsignore",p);
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add_exclude_file(fname,0,0);
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}
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add_exclude_line(getenv("CVSIGNORE"));
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}
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