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

   1 /* refile.c -- move or link message(s) from a source folder
   2  *          -- into one or more destination folders
   3  *
   4  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   5  * COPYRIGHT file in the root directory of the nmh distribution for
   6  * complete copyright information.
   7  */
   8
   9 #include "h/mh.h"
  10 #include "sbr/path.h"
  11 #include "sbr/print_version.h"
  12 #include "sbr/print_help.h"
  13 #include "sbr/seq_getnum.h"
  14 #include "sbr/seq_add.h"
  15 #include "sbr/arglist.h"
  16 #include "sbr/error.h"
  17 #include "h/done.h"
  18 #include "h/utils.h"
  19 #include "sbr/m_maildir.h"
  20 #include "sbr/m_mktemp.h"
  21 #include <fcntl.h>
  22
  23 #define REFILE_SWITCHES \
  24     X("draft", 0, DRAFTSW) \
  25     X("link", 0, LINKSW) \
  26     X("nolink", 0, NLINKSW) \
  27     X("preserve", 0, PRESSW) \
  28     X("nopreserve", 0, NPRESSW) \
  29     X("retainsequences", 0, RETAINSEQSSW) \
  30     X("noretainsequences", 0, NRETAINSEQSSW) \
  31     X("unlink", 0, UNLINKSW) \
  32     X("nounlink", 0, NUNLINKSW) \
  33     X("src +folder", 0, SRCSW) \
  34     X("file file", 0, FILESW) \
  35     X("rmmproc program", 0, RPROCSW) \
  36     X("normmproc", 0, NRPRCSW) \
  37     X("version", 0, VERSIONSW) \
  38     X("help", 0, HELPSW) \
  39
  40 #define X(sw, minchars, id) id,
  41 DEFINE_SWITCH_ENUM(REFILE);
  42 #undef X
  43
  44 #define X(sw, minchars, id) { sw, minchars, id },
  45 DEFINE_SWITCH_ARRAY(REFILE, switches);
  46 #undef X
  47
  48 static char maildir[BUFSIZ];
  49
  50 struct st_fold {
  51     char *f_name;
  52     struct msgs *f_mp;
  53 };
  54
  55 /*
  56  * static prototypes
  57  */
  58 static void opnfolds (struct msgs *, struct st_fold *, int);
  59 static void clsfolds (struct st_fold *, int);
  60 static void remove_files (int, char **);
  61 static int m_file (struct msgs *, char *, int, struct st_fold *, int, int, int);
  62 static void copy_seqs (struct msgs *, int, struct msgs *, int);
  63
  64
  65 int
  66 main (int argc, char **argv)
  67 {
  68     bool linkf = false;
  69     bool preserve = false;
  70     bool retainseqs = false;
  71     int filep = 0;
  72     int foldp = 0, isdf = 0;
  73     bool unlink_msgs = false;
  74     int i, msgnum;
  75     char *cp, *folder = NULL, buf[BUFSIZ];
  76     char **argp, **arguments;
  77     char *filevec[NFOLDERS + 2];
  78     char **files = &filevec[1];    /* leave room for remove_files:vec[0] */
  79     struct st_fold folders[NFOLDERS + 1];
  80     struct msgs_array msgs = { 0, 0, NULL };
  81     struct msgs *mp;
  82
  83     if (nmh_init(argv[0], true, true)) { return 1; }
  84
  85     arguments = getarguments (invo_name, argc, argv, 1);
  86     argp = arguments;
  87
  88     /*
  89      * Parse arguments
  90      */
  91     while ((cp = *argp++)) {
  92         if (*cp == '-') {
  93             switch (smatch (++cp, switches)) {
  94             case AMBIGSW:
  95                 ambigsw (cp, switches);
  96                 done (1);
  97             case UNKWNSW:
  98                 die("-%s unknown\n", cp);
  99
 100             case HELPSW:
 101                 snprintf (buf, sizeof(buf), "%s [msgs] [switches] +folder ...",
 102                           invo_name);
 103                 print_help (buf, switches, 1);
 104                 done (0);
 105             case VERSIONSW:
 106                 print_version(invo_name);
 107                 done (0);
 108
 109             case LINKSW:
 110                 linkf = true;
 111                 continue;
 112             case NLINKSW:
 113                 linkf = false;
 114                 continue;
 115
 116             case PRESSW:
 117                 preserve = true;
 118                 continue;
 119             case NPRESSW:
 120                 preserve = false;
 121                 continue;
 122
 123             case RETAINSEQSSW:
 124                 retainseqs = true;
 125                 continue;
 126             case NRETAINSEQSSW:
 127                 retainseqs = false;
 128                 continue;
 129
 130             case UNLINKSW:
 131                 unlink_msgs = true;
 132                 continue;
 133             case NUNLINKSW:
 134                 unlink_msgs = false;
 135                 continue;
 136
 137             case SRCSW:
 138                 if (folder)
 139                     die("only one source folder at a time!");
 140                 if (!(cp = *argp++) || *cp == '-')
 141                     die("missing argument to %s", argp[-2]);
 142                 folder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 143                                *cp != '@' ? TFOLDER : TSUBCWF);
 144                 continue;
 145             case DRAFTSW:
 146                 if (filep > NFOLDERS)
 147                     die("only %d files allowed!", NFOLDERS);
 148                 isdf = 0;
 149                 files[filep++] = mh_xstrdup(m_draft(NULL, NULL, 1, &isdf));
 150                 continue;
 151             case FILESW:
 152                 if (filep > NFOLDERS)
 153                     die("only %d files allowed!", NFOLDERS);
 154                 if (!(cp = *argp++) || *cp == '-')
 155                     die("missing argument to %s", argp[-2]);
 156                 files[filep++] = path (cp, TFILE);
 157                 continue;
 158
 159             case RPROCSW:
 160                 if (!(rmmproc = *argp++) || *rmmproc == '-')
 161                     die("missing argument to %s", argp[-2]);
 162                 continue;
 163             case NRPRCSW:
 164                 rmmproc = NULL;
 165                 continue;
 166             }
 167         }
 168         if (*cp == '+' || *cp == '@') {
 169             if (foldp > NFOLDERS)
 170                 die("only %d folders allowed!", NFOLDERS);
 171             folders[foldp++].f_name =
 172                 pluspath (cp);
 173         } else
 174                 app_msgarg(&msgs, cp);
 175     }
 176
 177     if (!context_find ("path"))
 178         free (path ("./", TFOLDER));
 179     if (foldp == 0)
 180         die("no folder specified");
 181
 182     /*
 183      * We are refiling a file to the folders
 184      */
 185     if (filep > 0) {
 186         if (folder || msgs.size)
 187             die("use -file or some messages, not both");
 188         opnfolds (NULL, folders, foldp);
 189         for (i = 0; i < filep; i++)
 190             if (m_file (0, files[i], 0, folders, foldp, preserve, 0))
 191                 done (1);
 192         /* If -nolink, then "remove" files */
 193         if (!linkf)
 194             remove_files (filep, filevec);
 195         done (0);
 196     }
 197
 198     if (!msgs.size)
 199         app_msgarg(&msgs, "cur");
 200     if (!folder)
 201         folder = getfolder (1);
 202     strncpy (maildir, m_maildir (folder), sizeof(maildir));
 203
 204     if (chdir (maildir) == NOTOK)
 205         adios (maildir, "unable to change directory to");
 206
 207     /* read source folder and create message structure */
 208     if (!(mp = folder_read (folder, 1)))
 209         die("unable to read folder %s", folder);
 210
 211     /* check for empty folder */
 212     if (mp->nummsg == 0)
 213         die("no messages in %s", folder);
 214
 215     /* parse the message range/sequence/name and set SELECTED */
 216     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 217         if (!m_convert (mp, msgs.msgs[msgnum]))
 218             done (1);
 219     seq_setprev (mp);   /* set the previous-sequence */
 220
 221     /* create folder structures for each destination folder */
 222     opnfolds (mp, folders, foldp);
 223
 224     /* Link all the selected messages into destination folders.
 225      *
 226      * This causes the add hook to be run for messages that are
 227      * linked into another folder.  The refile hook is run for
 228      * messages that are moved to another folder.
 229      */
 230     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 231         if (is_selected (mp, msgnum)) {
 232             cp = mh_xstrdup(m_name (msgnum));
 233             if (m_file (mp, cp, retainseqs ? msgnum : 0, folders, foldp,
 234                         preserve, !linkf))
 235                 done (1);
 236             free (cp);
 237         }
 238     }
 239
 240     /*
 241      * Update this now, since folder_delmsgs() will save the context
 242      * but doesn't have access to the folder name.
 243      */
 244
 245     context_replace (pfolder, folder);  /* update current folder   */
 246
 247     /*
 248      * Adjust "cur" if necessary
 249      */
 250
 251     if (mp->hghsel != mp->curmsg
 252         && (mp->numsel != mp->nummsg || linkf))
 253         seq_setcur (mp, mp->hghsel);
 254
 255     /*
 256      * Close destination folders now; if we are using private sequences
 257      * we need to have all of our calls to seq_save() complete before we
 258      * call context_save().
 259      */
 260
 261     clsfolds (folders, foldp);
 262
 263     /* If -nolink, then "remove" messages from source folder.
 264      *
 265      * Note that folder_delmsgs does not call the delete hook
 266      * because the message has already been handled above.
 267      */
 268     if (!linkf) {
 269         folder_delmsgs (mp, unlink_msgs, 1);
 270     } else {
 271         seq_save (mp);  /* synchronize message sequences */
 272         context_save ();                        /* save the context file   */
 273     }
 274
 275     folder_free (mp);                   /* free folder structure   */
 276     done (0);
 277     return 1;
 278 }
 279
 280
 281 /*
 282  * Read all the destination folders and
 283  * create folder structures for all of them.
 284  */
 285
 286 static void
 287 opnfolds (struct msgs *src_folder, struct st_fold *folders, int nfolders)
 288 {
 289     char nmaildir[BUFSIZ];
 290     struct st_fold *fp, *ep;
 291     struct msgs *mp;
 292
 293     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 294         if (chdir (m_maildir ("")) < 0) {
 295             advise (m_maildir (""), "chdir");
 296         }
 297         strncpy (nmaildir, m_maildir (fp->f_name), sizeof(nmaildir));
 298
 299         /*
 300          * Null src_folder indicates that we are refiling a file to
 301          * the folders, in which case we don't want to short-circuit
 302          * fp->f_mp to any "source folder".
 303          */
 304         if (! src_folder  ||  strcmp (src_folder->foldpath, nmaildir)) {
 305             create_folder (nmaildir, 0, done);
 306
 307             if (chdir (nmaildir) == NOTOK)
 308                 adios (nmaildir, "unable to change directory to");
 309             if (!(mp = folder_read (fp->f_name, 1)))
 310                 die("unable to read folder %s", fp->f_name);
 311             mp->curmsg = 0;
 312
 313             fp->f_mp = mp;
 314         } else {
 315             /* Source and destination folders are the same. */
 316             fp->f_mp = src_folder;
 317         }
 318
 319         if (maildir[0] != '\0'  &&  chdir (maildir) < 0) {
 320             advise (maildir, "chdir");
 321         }
 322     }
 323 }
 324
 325
 326 /*
 327  * Set the Previous-Sequence and then synchronize the
 328  * sequence file, for each destination folder.
 329  */
 330
 331 static void
 332 clsfolds (struct st_fold *folders, int nfolders)
 333 {
 334     struct st_fold *fp, *ep;
 335     struct msgs *mp;
 336
 337     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 338         mp = fp->f_mp;
 339         seq_setprev (mp);
 340         seq_save (mp);
 341     }
 342 }
 343
 344
 345 /*
 346  * If you have a "rmmproc" defined, we called that
 347  * to remove all the specified files.  If "rmmproc"
 348  * is not defined, then just unlink the files.
 349  */
 350
 351 static void
 352 remove_files (int filep, char **files)
 353 {
 354     int i, vecp;
 355     char **vec, *program;
 356
 357     /* If rmmproc is defined, we use that */
 358     if (rmmproc) {
 359         vec = argsplit(rmmproc, &program, &vecp);
 360         files++;                /* Yes, we need to do this */
 361         for (i = 0; i < filep; i++)
 362                 vec[vecp++] = files[i];
 363         vec[vecp] = NULL;       /* NULL terminate list */
 364
 365         fflush (stdout);
 366         execvp (program, vec);
 367         adios (rmmproc, "unable to exec");
 368     }
 369
 370     /* Else just unlink the files */
 371     files++;    /* advance past filevec[0] */
 372     for (i = 0; i < filep; i++) {
 373         if (m_unlink (files[i]) == NOTOK)
 374             admonish (files[i], "unable to unlink");
 375     }
 376 }
 377
 378
 379 /*
 380  * Link (or copy) the message into each of the destination folders.
 381  * If oldmsgnum is not 0, call copy_seqs().
 382  */
 383
 384 static int
 385 m_file (struct msgs *mp, char *msgfile, int oldmsgnum,
 386         struct st_fold *folders, int nfolders, int preserve, int refile)
 387 {
 388     int msgnum;
 389     struct st_fold *fp, *ep;
 390
 391     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 392         /*
 393          * With same source and destination folder, don't indicate that
 394          * the new message is selected so that 1) folder_delmsgs() doesn't
 395          * delete it later and 2) it is not reflected in mp->hghsel, and
 396          * therefore won't be assigned to be the current message.
 397          */
 398         if ((msgnum = folder_addmsg (&fp->f_mp, msgfile,
 399                                      mp != fp->f_mp,
 400                                      0, preserve, nfolders == 1 && refile,
 401                                      maildir)) == -1)
 402             return 1;
 403         if (oldmsgnum) copy_seqs (mp, oldmsgnum, fp->f_mp, msgnum);
 404     }
 405     return 0;
 406 }
 407
 408
 409 /*
 410  * Copy sequence information for a refiled message to its
 411  * new folder.  Skip the cur sequence.
 412  */
 413 static void
 414 copy_seqs (struct msgs *oldmp, int oldmsgnum, struct msgs *newmp, int newmsgnum)
 415 {
 416     char **seq;
 417     size_t seqnum;
 418
 419     for (seq = svector_strs (oldmp->msgattrs), seqnum = 0;
 420          *seq && seqnum < svector_size (oldmp->msgattrs);
 421          ++seq, ++seqnum) {
 422         if (strcmp (current, *seq)) {
 423             assert ((int) seqnum == seq_getnum (oldmp, *seq));
 424             if (in_sequence (oldmp, seqnum, oldmsgnum)) {
 425                 seq_addmsg (newmp, *seq, newmsgnum,
 426                             !is_seq_private (oldmp, seqnum), 0);
 427             }
 428         }
 429     }
 430 }