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