diplodocus.org Git - nmh/blob - uip/refile.c

   1
   2 /*
   3  * refile.c -- move or link message(s) from a source folder
   4  *          -- into one or more destination folders
   5  *
   6  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   7  * COPYRIGHT file in the root directory of the nmh distribution for
   8  * complete copyright information.
   9  */
  10
  11 #include <h/mh.h>
  12 #include <h/utils.h>
  13 #include <fcntl.h>
  14
  15 #define REFILE_SWITCHES \
  16     X("draft", 0, DRAFTSW) \
  17     X("link", 0, LINKSW) \
  18     X("nolink", 0, NLINKSW) \
  19     X("preserve", 0, PRESSW) \
  20     X("nopreserve", 0, NPRESSW) \
  21     X("retainsequences", 0, RETAINSEQSSW) \
  22     X("noretainsequences", 0, NRETAINSEQSSW) \
  23     X("unlink", 0, UNLINKSW) \
  24     X("nounlink", 0, NUNLINKSW) \
  25     X("src +folder", 0, SRCSW) \
  26     X("file file", 0, FILESW) \
  27     X("rmmproc program", 0, RPROCSW) \
  28     X("normmproc", 0, NRPRCSW) \
  29     X("version", 0, VERSIONSW) \
  30     X("help", 0, HELPSW) \
  31
  32 #define X(sw, minchars, id) id,
  33 DEFINE_SWITCH_ENUM(REFILE);
  34 #undef X
  35
  36 #define X(sw, minchars, id) { sw, minchars, id },
  37 DEFINE_SWITCH_ARRAY(REFILE, switches);
  38 #undef X
  39
  40 static char maildir[BUFSIZ];
  41
  42 struct st_fold {
  43     char *f_name;
  44     struct msgs *f_mp;
  45 };
  46
  47 /*
  48  * static prototypes
  49  */
  50 static void opnfolds (struct msgs *, struct st_fold *, int);
  51 static void clsfolds (struct st_fold *, int);
  52 static void remove_files (int, char **);
  53 static int m_file (struct msgs *, char *, int, struct st_fold *, int, int, int);
  54 static void copy_seqs (struct msgs *, int, struct msgs *, int);
  55
  56
  57 int
  58 main (int argc, char **argv)
  59 {
  60     int linkf = 0, preserve = 0, retainseqs = 0, filep = 0;
  61     int foldp = 0, isdf = 0, unlink_msgs = 0;
  62     int i, msgnum;
  63     char *cp, *folder = NULL, buf[BUFSIZ];
  64     char **argp, **arguments;
  65     char *filevec[NFOLDERS + 2];
  66     char **files = &filevec[1];    /* leave room for remove_files:vec[0] */
  67     struct st_fold folders[NFOLDERS + 1];
  68     struct msgs_array msgs = { 0, 0, NULL };
  69     struct msgs *mp;
  70
  71     if (nmh_init(argv[0], 1)) { return 1; }
  72
  73     arguments = getarguments (invo_name, argc, argv, 1);
  74     argp = arguments;
  75
  76     /*
  77      * Parse arguments
  78      */
  79     while ((cp = *argp++)) {
  80         if (*cp == '-') {
  81             switch (smatch (++cp, switches)) {
  82             case AMBIGSW:
  83                 ambigsw (cp, switches);
  84                 done (1);
  85             case UNKWNSW:
  86                 adios (NULL, "-%s unknown\n", cp);
  87
  88             case HELPSW:
  89                 snprintf (buf, sizeof(buf), "%s [msgs] [switches] +folder ...",
  90                           invo_name);
  91                 print_help (buf, switches, 1);
  92                 done (0);
  93             case VERSIONSW:
  94                 print_version(invo_name);
  95                 done (0);
  96
  97             case LINKSW:
  98                 linkf++;
  99                 continue;
 100             case NLINKSW:
 101                 linkf = 0;
 102                 continue;
 103
 104             case PRESSW:
 105                 preserve++;
 106                 continue;
 107             case NPRESSW:
 108                 preserve = 0;
 109                 continue;
 110
 111             case RETAINSEQSSW:
 112                 retainseqs = 1;
 113                 continue;
 114             case NRETAINSEQSSW:
 115                 retainseqs = 0;
 116                 continue;
 117
 118             case UNLINKSW:
 119                 unlink_msgs++;
 120                 continue;
 121             case NUNLINKSW:
 122                 unlink_msgs = 0;
 123                 continue;
 124
 125             case SRCSW:
 126                 if (folder)
 127                     adios (NULL, "only one source folder at a time!");
 128                 if (!(cp = *argp++) || *cp == '-')
 129                     adios (NULL, "missing argument to %s", argp[-2]);
 130                 folder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 131                                *cp != '@' ? TFOLDER : TSUBCWF);
 132                 continue;
 133             case DRAFTSW:
 134                 if (filep > NFOLDERS)
 135                     adios (NULL, "only %d files allowed!", NFOLDERS);
 136                 isdf = 0;
 137                 files[filep++] = getcpy (m_draft (NULL, NULL, 1, &isdf));
 138                 continue;
 139             case FILESW:
 140                 if (filep > NFOLDERS)
 141                     adios (NULL, "only %d files allowed!", NFOLDERS);
 142                 if (!(cp = *argp++) || *cp == '-')
 143                     adios (NULL, "missing argument to %s", argp[-2]);
 144                 files[filep++] = path (cp, TFILE);
 145                 continue;
 146
 147             case RPROCSW:
 148                 if (!(rmmproc = *argp++) || *rmmproc == '-')
 149                     adios (NULL, "missing argument to %s", argp[-2]);
 150                 continue;
 151             case NRPRCSW:
 152                 rmmproc = NULL;
 153                 continue;
 154             }
 155         }
 156         if (*cp == '+' || *cp == '@') {
 157             if (foldp > NFOLDERS)
 158                 adios (NULL, "only %d folders allowed!", NFOLDERS);
 159             folders[foldp++].f_name =
 160                 pluspath (cp);
 161         } else
 162                 app_msgarg(&msgs, cp);
 163     }
 164
 165     if (!context_find ("path"))
 166         free (path ("./", TFOLDER));
 167     if (foldp == 0)
 168         adios (NULL, "no folder specified");
 169
 170     /*
 171      * We are refiling a file to the folders
 172      */
 173     if (filep > 0) {
 174         if (folder || msgs.size)
 175             adios (NULL, "use -file or some messages, not both");
 176         opnfolds (NULL, folders, foldp);
 177         for (i = 0; i < filep; i++)
 178             if (m_file (0, files[i], 0, folders, foldp, preserve, 0))
 179                 done (1);
 180         /* If -nolink, then "remove" files */
 181         if (!linkf)
 182             remove_files (filep, filevec);
 183         done (0);
 184     }
 185
 186     if (!msgs.size)
 187         app_msgarg(&msgs, "cur");
 188     if (!folder)
 189         folder = getfolder (1);
 190     strncpy (maildir, m_maildir (folder), sizeof(maildir));
 191
 192     if (chdir (maildir) == NOTOK)
 193         adios (maildir, "unable to change directory to");
 194
 195     /* read source folder and create message structure */
 196     if (!(mp = folder_read (folder, 1)))
 197         adios (NULL, "unable to read folder %s", folder);
 198
 199     /* check for empty folder */
 200     if (mp->nummsg == 0)
 201         adios (NULL, "no messages in %s", folder);
 202
 203     /* parse the message range/sequence/name and set SELECTED */
 204     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 205         if (!m_convert (mp, msgs.msgs[msgnum]))
 206             done (1);
 207     seq_setprev (mp);   /* set the previous-sequence */
 208
 209     /* create folder structures for each destination folder */
 210     opnfolds (mp, folders, foldp);
 211
 212     /* Link all the selected messages into destination folders.
 213      *
 214      * This causes the add hook to be run for messages that are
 215      * linked into another folder.  The refile hook is run for
 216      * messages that are moved to another folder.
 217      */
 218     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 219         if (is_selected (mp, msgnum)) {
 220             cp = getcpy (m_name (msgnum));
 221             if (m_file (mp, cp, retainseqs ? msgnum : 0, folders, foldp,
 222                         preserve, !linkf))
 223                 done (1);
 224             free (cp);
 225         }
 226     }
 227
 228     /*
 229      * Update this now, since folder_delmsgs() will save the context
 230      * but doesn't have access to the folder name.
 231      */
 232
 233     context_replace (pfolder, folder);  /* update current folder   */
 234
 235     /*
 236      * Adjust "cur" if necessary
 237      */
 238
 239     if (mp->hghsel != mp->curmsg
 240         && (mp->numsel != mp->nummsg || linkf))
 241         seq_setcur (mp, mp->hghsel);
 242
 243     /*
 244      * Close destination folders now; if we are using private sequences
 245      * we need to have all of our calls to seq_save() complete before we
 246      * call context_save().
 247      */
 248
 249     clsfolds (folders, foldp);
 250
 251     /* If -nolink, then "remove" messages from source folder.
 252      *
 253      * Note that folder_delmsgs does not call the delete hook
 254      * because the message has already been handled above.
 255      */
 256     if (!linkf) {
 257         folder_delmsgs (mp, unlink_msgs, 1);
 258     } else {
 259         seq_save (mp);  /* synchronize message sequences */
 260         context_save ();                        /* save the context file   */
 261     }
 262
 263     folder_free (mp);                   /* free folder structure   */
 264     done (0);
 265     return 1;
 266 }
 267
 268
 269 /*
 270  * Read all the destination folders and
 271  * create folder structures for all of them.
 272  */
 273
 274 static void
 275 opnfolds (struct msgs *src_folder, struct st_fold *folders, int nfolders)
 276 {
 277     char nmaildir[BUFSIZ];
 278     register struct st_fold *fp, *ep;
 279     register struct msgs *mp;
 280
 281     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 282         if (chdir (m_maildir ("")) < 0) {
 283             advise (m_maildir (""), "chdir");
 284         }
 285         strncpy (nmaildir, m_maildir (fp->f_name), sizeof(nmaildir));
 286
 287         /*
 288          * Null src_folder indicates that we are refiling a file to
 289          * the folders, in which case we don't want to short-circuit
 290          * fp->f_mp to any "source folder".
 291          */
 292         if (! src_folder  ||  strcmp (src_folder->foldpath, nmaildir)) {
 293             create_folder (nmaildir, 0, done);
 294
 295             if (chdir (nmaildir) == NOTOK)
 296                 adios (nmaildir, "unable to change directory to");
 297             if (!(mp = folder_read (fp->f_name, 1)))
 298                 adios (NULL, "unable to read folder %s", fp->f_name);
 299             mp->curmsg = 0;
 300
 301             fp->f_mp = mp;
 302         } else {
 303             /* Source and destination folders are the same. */
 304             fp->f_mp = src_folder;
 305         }
 306
 307         if (maildir[0] != '\0'  &&  chdir (maildir) < 0) {
 308             advise (maildir, "chdir");
 309         }
 310     }
 311 }
 312
 313
 314 /*
 315  * Set the Previous-Sequence and then sychronize the
 316  * sequence file, for each destination folder.
 317  */
 318
 319 static void
 320 clsfolds (struct st_fold *folders, int nfolders)
 321 {
 322     register struct st_fold *fp, *ep;
 323     register struct msgs *mp;
 324
 325     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 326         mp = fp->f_mp;
 327         seq_setprev (mp);
 328         seq_save (mp);
 329     }
 330 }
 331
 332
 333 /*
 334  * If you have a "rmmproc" defined, we called that
 335  * to remove all the specified files.  If "rmmproc"
 336  * is not defined, then just unlink the files.
 337  */
 338
 339 static void
 340 remove_files (int filep, char **files)
 341 {
 342     int i, vecp;
 343     char **vec, *program;
 344
 345     /* If rmmproc is defined, we use that */
 346     if (rmmproc) {
 347         vec = argsplit(rmmproc, &program, &vecp);
 348         files++;                /* Yes, we need to do this */
 349         for (i = 0; i < filep; i++)
 350                 vec[vecp++] = files[i];
 351         vec[vecp] = NULL;       /* NULL terminate list */
 352
 353         fflush (stdout);
 354         execvp (program, vec);
 355         adios (rmmproc, "unable to exec");
 356     }
 357
 358     /* Else just unlink the files */
 359     files++;    /* advance past filevec[0] */
 360     for (i = 0; i < filep; i++) {
 361         if (m_unlink (files[i]) == NOTOK)
 362             admonish (files[i], "unable to unlink");
 363     }
 364 }
 365
 366
 367 /*
 368  * Link (or copy) the message into each of the destination folders.
 369  * If oldmsgnum is not 0, call copy_seqs().
 370  */
 371
 372 static int
 373 m_file (struct msgs *mp, char *msgfile, int oldmsgnum,
 374         struct st_fold *folders, int nfolders, int preserve, int refile)
 375 {
 376     int msgnum;
 377     struct st_fold *fp, *ep;
 378
 379     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 380         /*
 381          * With same source and destination folder, don't indicate that
 382          * the new message is selected so that 1) folder_delmsgs() doesn't
 383          * delete it later and 2) it is not reflected in mp->hghsel, and
 384          * therefore won't be assigned to be the current message.
 385          */
 386         if ((msgnum = folder_addmsg (&fp->f_mp, msgfile,
 387                                      mp == fp->f_mp ? 0 : 1,
 388                                      0, preserve, nfolders == 1 && refile,
 389                                      maildir)) == -1)
 390             return 1;
 391         if (oldmsgnum) copy_seqs (mp, oldmsgnum, fp->f_mp, msgnum);
 392     }
 393     return 0;
 394 }
 395
 396
 397 /*
 398  * Copy sequence information for a refiled message to its
 399  * new folder.  Skip the cur sequence.
 400  */
 401 static void
 402 copy_seqs (struct msgs *oldmp, int oldmsgnum, struct msgs *newmp, int newmsgnum)
 403 {
 404     char **seq;
 405     size_t seqnum;
 406
 407     for (seq = svector_strs (oldmp->msgattrs), seqnum = 0;
 408          *seq && seqnum < svector_size (oldmp->msgattrs);
 409          ++seq, ++seqnum) {
 410         if (strcmp (current, *seq)) {
 411             assert ((int) seqnum == seq_getnum (oldmp, *seq));
 412             if (in_sequence (oldmp, seqnum, oldmsgnum)) {
 413                 seq_addmsg (newmp, *seq, newmsgnum,
 414                             is_seq_private (oldmp, seqnum) ? 0 : 1, 0);
 415             }
 416         }
 417     }
 418 }