batch.c

   1 /* -*- c-file-style: "linux" -*-
   2
   3    Weiss 1/1999
   4    Batch utilities for rsync.
   5
   6 */
   7
   8 #include "rsync.h"
   9 #include <time.h>
  10
  11 extern char *batch_name;
  12 extern int eol_nulls;
  13 extern int recurse;
  14 extern int preserve_links;
  15 extern int preserve_hard_links;
  16 extern int preserve_devices;
  17 extern int preserve_uid;
  18 extern int preserve_gid;
  19 extern int always_checksum;
  20
  21 extern struct filter_list_struct filter_list;
  22
  23 static int *flag_ptr[] = {
  24         &recurse,
  25         &preserve_uid,
  26         &preserve_gid,
  27         &preserve_links,
  28         &preserve_devices,
  29         &preserve_hard_links,
  30         &always_checksum,
  31         NULL
  32 };
  33
  34 static char *flag_name[] = {
  35         "--recurse (-r)",
  36         "--owner (-o)",
  37         "--group (-g)",
  38         "--links (-l)",
  39         "--devices (-D)",
  40         "--hard-links (-H)",
  41         "--checksum (-c)",
  42         NULL
  43 };
  44
  45 void write_stream_flags(int fd)
  46 {
  47         int i, flags;
  48
  49         /* Start the batch file with a bitmap of data-stream-affecting
  50          * flags. */
  51         for (i = 0, flags = 0; flag_ptr[i]; i++) {
  52                 if (*flag_ptr[i])
  53                         flags |= 1 << i;
  54         }
  55         write_int(fd, flags);
  56 }
  57
  58 void read_stream_flags(int fd)
  59 {
  60         int i, flags;
  61
  62         for (i = 0, flags = read_int(fd); flag_ptr[i]; i++) {
  63                 int set = flags & (1 << i) ? 1 : 0;
  64                 if (*flag_ptr[i] != set) {
  65                         if (verbose) {
  66                                 rprintf(FINFO,
  67                                         "%sing the %s option to match the batchfile.\n",
  68                                         set ? "Sett" : "Clear", flag_name[i]);
  69                         }
  70                         *flag_ptr[i] = set;
  71                 }
  72         }
  73 }
  74
  75 static void write_arg(int fd, char *arg)
  76 {
  77         char *x, *s;
  78
  79         if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
  80                 write(fd, arg, x - arg + 1);
  81                 arg += x - arg + 1;
  82         }
  83
  84         if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
  85                 write(fd, "'", 1);
  86                 for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
  87                         write(fd, s, x - s + 1);
  88                         write(fd, "'", 1);
  89                 }
  90                 write(fd, s, strlen(s));
  91                 write(fd, "'", 1);
  92                 return;
  93         }
  94
  95         write(fd, arg, strlen(arg));
  96 }
  97
  98 static void write_filters(int fd)
  99 {
 100         struct filter_struct *ent;
 101
 102         write_sbuf(fd, " <<'#E#'\n");
 103         for (ent = filter_list.head; ent; ent = ent->next) {
 104                 char *p = ent->pattern;
 105                 if (ent->match_flags & MATCHFLG_INCLUDE)
 106                         write_buf(fd, "+ ", 2);
 107                 else if (((*p == '-' || *p == '+') && p[1] == ' ')
 108                     || *p == '#' || *p == ';')
 109                         write_buf(fd, "- ", 2);
 110                 write_sbuf(fd, p);
 111                 if (ent->match_flags & MATCHFLG_DIRECTORY)
 112                         write_byte(fd, '/');
 113                 write_byte(fd, eol_nulls ? 0 : '\n');
 114         }
 115         if (eol_nulls)
 116                 write_sbuf(fd, ";\n");
 117         write_sbuf(fd, "#E#");
 118 }
 119
 120 /* This routine tries to write out an equivalent --read-batch command
 121  * given the user's --write-batch args.  However, it doesn't really
 122  * understand most of the options, so it uses some overly simple
 123  * heuristics to munge the command line into something that will
 124  * (hopefully) work. */
 125 void write_batch_shell_file(int argc, char *argv[], int file_arg_cnt)
 126 {
 127         int fd, i;
 128         char *p, filename[MAXPATHLEN];
 129
 130         stringjoin(filename, sizeof filename,
 131                    batch_name, ".sh", NULL);
 132         fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
 133                      S_IRUSR | S_IWUSR | S_IEXEC);
 134         if (fd < 0) {
 135                 rsyserr(FERROR, errno, "Batch file %s open error", filename);
 136                 exit_cleanup(1);
 137         }
 138
 139         /* Write argvs info to BATCH.sh file */
 140         write_arg(fd, argv[0]);
 141         if (filter_list.head)
 142                 write_sbuf(fd, " --exclude-from=-");
 143         for (i = 1; i < argc - file_arg_cnt; i++) {
 144                 p = argv[i];
 145                 if (strncmp(p, "--files-from", 12) == 0
 146                     || strncmp(p, "--include", 9) == 0
 147                     || strncmp(p, "--exclude", 9) == 0) {
 148                         if (strchr(p, '=') == NULL)
 149                                 i++;
 150                         continue;
 151                 }
 152                 write(fd, " ", 1);
 153                 if (strncmp(p, "--write-batch", 13) == 0) {
 154                         write(fd, "--read-batch", 12);
 155                         if (p[13] == '=') {
 156                                 write(fd, "=", 1);
 157                                 write_arg(fd, p + 14);
 158                         }
 159                 } else
 160                         write_arg(fd, p);
 161         }
 162         if ((p = find_colon(argv[argc - 1])) != NULL) {
 163                 if (*++p == ':')
 164                         p++;
 165         } else
 166                 p = argv[argc - 1];
 167         write(fd, " ${1:-", 6);
 168         write_arg(fd, p);
 169         write_byte(fd, '}');
 170         if (filter_list.head)
 171                 write_filters(fd);
 172         if (write(fd, "\n", 1) != 1 || close(fd) < 0) {
 173                 rsyserr(FERROR, errno, "Batch file %s write error", filename);
 174                 exit_cleanup(1);
 175         }
 176 }
 177
 178 void show_flist(int index, struct file_struct **fptr)
 179 {
 180         /*  for debugging    show_flist(flist->count, flist->files * */
 181
 182         int i;
 183         for (i = 0; i < index; i++) {
 184                 rprintf(FINFO, "flist->flags=%#x\n", fptr[i]->flags);
 185                 rprintf(FINFO, "flist->modtime=%#lx\n",
 186                         (long unsigned) fptr[i]->modtime);
 187                 rprintf(FINFO, "flist->length=%.0f\n",
 188                         (double) fptr[i]->length);
 189                 rprintf(FINFO, "flist->mode=%#o\n", (int) fptr[i]->mode);
 190                 rprintf(FINFO, "flist->basename=%s\n", fptr[i]->basename);
 191                 if (fptr[i]->dirname)
 192                         rprintf(FINFO, "flist->dirname=%s\n",
 193                                 fptr[i]->dirname);
 194                 if (fptr[i]->basedir)
 195                         rprintf(FINFO, "flist->basedir=%s\n",
 196                                 fptr[i]->basedir);
 197         }
 198 }
 199
 200 void show_argvs(int argc, char *argv[])
 201 {
 202         /*  for debugging  * */
 203
 204         int i;
 205         rprintf(FINFO, "BATCH.C:show_argvs,argc=%d\n", argc);
 206         for (i = 0; i < argc; i++) {
 207                 /*    if (argv[i])   */
 208                 rprintf(FINFO, "i=%d,argv[i]=%s\n", i, argv[i]);
 209
 210         }
 211 }