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