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  * $Id$
   7  *
   8  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   9  * COPYRIGHT file in the root directory of the nmh distribution for
  10  * complete copyright information.
  11  */
  12
  13 #include <h/mh.h>
  14 #include <fcntl.h>
  15 #include <errno.h>
  16
  17 /*
  18  * We allocate spaces for messages (msgs array)
  19  * this number of elements at a time.
  20  */
  21 #define MAXMSGS  256
  22
  23
  24 static struct swit switches[] = {
  25 #define DRAFTSW          0
  26     { "draft", 0 },
  27 #define LINKSW           1
  28     { "link", 0 },
  29 #define NLINKSW          2
  30     { "nolink", 0 },
  31 #define PRESSW           3
  32     { "preserve", 0 },
  33 #define NPRESSW          4
  34     { "nopreserve", 0 },
  35 #define UNLINKSW         5
  36     { "unlink", 0 },
  37 #define NUNLINKSW        6
  38     { "nounlink", 0 },
  39 #define SRCSW            7
  40     { "src +folder", 0 },
  41 #define FILESW           8
  42     { "file file", 0 },
  43 #define RPROCSW          9
  44     { "rmmproc program", 0 },
  45 #define NRPRCSW         10
  46     { "normmproc", 0 },
  47 #define VERSIONSW       11
  48     { "version", 0 },
  49 #define HELPSW          12
  50     { "help", 0 },
  51     { NULL, 0 }
  52 };
  53
  54 static char maildir[BUFSIZ];
  55
  56 struct st_fold {
  57     char *f_name;
  58     struct msgs *f_mp;
  59 };
  60
  61 /*
  62  * static prototypes
  63  */
  64 static void opnfolds (struct st_fold *, int);
  65 static void clsfolds (struct st_fold *, int);
  66 static void remove_files (int, char **);
  67 static int m_file (char *, struct st_fold *, int, int, int);
  68
  69
  70 int
  71 main (int argc, char **argv)
  72 {
  73     int linkf = 0, preserve = 0, filep = 0;
  74     int foldp = 0, isdf = 0, unlink_msgs = 0;
  75     int i, msgnum, nummsgs, maxmsgs;
  76     char *cp, *folder = NULL, buf[BUFSIZ];
  77     char **argp, **arguments, **msgs;
  78     char *filevec[NFOLDERS + 2];
  79     char **files = &filevec[1];    /* leave room for remove_files:vec[0] */
  80     struct st_fold folders[NFOLDERS + 1];
  81     struct msgs *mp;
  82
  83 #ifdef LOCALE
  84     setlocale(LC_ALL, "");
  85 #endif
  86     invo_name = r1bindex (argv[0], '/');
  87
  88     /* read user profile/context */
  89     context_read();
  90
  91     arguments = getarguments (invo_name, argc, argv, 1);
  92     argp = arguments;
  93
  94     /*
  95      * Allocate the initial space to record message
  96      * names, ranges, and sequences.
  97      */
  98     nummsgs = 0;
  99     maxmsgs = MAXMSGS;
 100     if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
 101         adios (NULL, "unable to allocate storage");
 102
 103     /*
 104      * Parse arguments
 105      */
 106     while ((cp = *argp++)) {
 107         if (*cp == '-') {
 108             switch (smatch (++cp, switches)) {
 109             case AMBIGSW:
 110                 ambigsw (cp, switches);
 111                 done (1);
 112             case UNKWNSW:
 113                 adios (NULL, "-%s unknown\n", cp);
 114
 115             case HELPSW:
 116                 snprintf (buf, sizeof(buf), "%s [msgs] [switches] +folder ...",
 117                           invo_name);
 118                 print_help (buf, switches, 1);
 119                 done (1);
 120             case VERSIONSW:
 121                 print_version(invo_name);
 122                 done (1);
 123
 124             case LINKSW:
 125                 linkf++;
 126                 continue;
 127             case NLINKSW:
 128                 linkf = 0;
 129                 continue;
 130
 131             case PRESSW:
 132                 preserve++;
 133                 continue;
 134             case NPRESSW:
 135                 preserve = 0;
 136                 continue;
 137
 138             case UNLINKSW:
 139                 unlink_msgs++;
 140                 continue;
 141             case NUNLINKSW:
 142                 unlink_msgs = 0;
 143                 continue;
 144
 145             case SRCSW:
 146                 if (folder)
 147                     adios (NULL, "only one source folder at a time!");
 148                 if (!(cp = *argp++) || *cp == '-')
 149                     adios (NULL, "missing argument to %s", argp[-2]);
 150                 folder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 151                                *cp != '@' ? TFOLDER : TSUBCWF);
 152                 continue;
 153             case DRAFTSW:
 154                 if (filep > NFOLDERS)
 155                     adios (NULL, "only %d files allowed!", NFOLDERS);
 156                 isdf = 0;
 157                 files[filep++] = getcpy (m_draft (NULL, NULL, 1, &isdf));
 158                 continue;
 159             case FILESW:
 160                 if (filep > NFOLDERS)
 161                     adios (NULL, "only %d files allowed!", NFOLDERS);
 162                 if (!(cp = *argp++) || *cp == '-')
 163                     adios (NULL, "missing argument to %s", argp[-2]);
 164                 files[filep++] = path (cp, TFILE);
 165                 continue;
 166
 167             case RPROCSW:
 168                 if (!(rmmproc = *argp++) || *rmmproc == '-')
 169                     adios (NULL, "missing argument to %s", argp[-2]);
 170                 continue;
 171             case NRPRCSW:
 172                 rmmproc = NULL;
 173                 continue;
 174             }
 175         }
 176         if (*cp == '+' || *cp == '@') {
 177             if (foldp > NFOLDERS)
 178                 adios (NULL, "only %d folders allowed!", NFOLDERS);
 179             folders[foldp++].f_name =
 180                 path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 181         } else {
 182             /*
 183              * Check if we need to allocate more space
 184              * for message names, ranges, and sequences.
 185              */
 186             if (nummsgs >= maxmsgs) {
 187                 maxmsgs += MAXMSGS;
 188                 if (!(msgs = (char **) realloc (msgs,
 189                                                 (size_t) (maxmsgs * sizeof(*msgs)))))
 190                     adios (NULL, "unable to reallocate msgs storage");
 191             }
 192             msgs[nummsgs++] = cp;
 193         }
 194     }
 195
 196     if (!context_find ("path"))
 197         free (path ("./", TFOLDER));
 198     if (foldp == 0)
 199         adios (NULL, "no folder specified");
 200
 201 #ifdef WHATNOW
 202     if (!nummsgs && !foldp && !filep && (cp = getenv ("mhdraft")) && *cp)
 203         files[filep++] = cp;
 204 #endif /* WHATNOW */
 205
 206     /*
 207      * We are refiling a file to the folders
 208      */
 209     if (filep > 0) {
 210         if (folder || nummsgs)
 211             adios (NULL, "use -file or some messages, not both");
 212         opnfolds (folders, foldp);
 213         for (i = 0; i < filep; i++)
 214             if (m_file (files[i], folders, foldp, preserve, 0))
 215                 done (1);
 216         /* If -nolink, then "remove" files */
 217         if (!linkf)
 218             remove_files (filep, filevec);
 219         done (0);
 220     }
 221
 222     if (!nummsgs)
 223         msgs[nummsgs++] = "cur";
 224     if (!folder)
 225         folder = getfolder (1);
 226     strncpy (maildir, m_maildir (folder), sizeof(maildir));
 227
 228     if (chdir (maildir) == NOTOK)
 229         adios (maildir, "unable to change directory to");
 230
 231     /* read source folder and create message structure */
 232     if (!(mp = folder_read (folder)))
 233         adios (NULL, "unable to read folder %s", folder);
 234
 235     /* check for empty folder */
 236     if (mp->nummsg == 0)
 237         adios (NULL, "no messages in %s", folder);
 238
 239     /* parse the message range/sequence/name and set SELECTED */
 240     for (msgnum = 0; msgnum < nummsgs; msgnum++)
 241         if (!m_convert (mp, msgs[msgnum]))
 242             done (1);
 243     seq_setprev (mp);   /* set the previous-sequence */
 244
 245     /* create folder structures for each destination folder */
 246     opnfolds (folders, foldp);
 247
 248     /* Link all the selected messages into destination folders.
 249      *
 250      * This causes the add hook to be run for messages that are
 251      * linked into another folder.  The refile hook is run for
 252      * messages that are moved to another folder.
 253      */
 254     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 255         if (is_selected (mp, msgnum)) {
 256             cp = getcpy (m_name (msgnum));
 257             if (m_file (cp, folders, foldp, preserve, !linkf))
 258                 done (1);
 259             free (cp);
 260         }
 261     }
 262
 263     /*
 264      * This is a hack.  If we are using an external rmmproc,
 265      * then save the current folder to the context file,
 266      * so the external rmmproc will remove files from the correct
 267      * directory.  This should be moved to folder_delmsgs().
 268      */
 269     if (rmmproc) {
 270         context_replace (pfolder, folder);
 271         context_save ();
 272         fflush (stdout);
 273     }
 274
 275     /* If -nolink, then "remove" messages from source folder.
 276      *
 277      * Note that folder_delmsgs does not call the delete hook
 278      * because the message has already been handled above.
 279      */
 280     if (!linkf) {
 281         folder_delmsgs (mp, unlink_msgs, 1);
 282     }
 283
 284     clsfolds (folders, foldp);
 285
 286     if (mp->hghsel != mp->curmsg
 287         && (mp->numsel != mp->nummsg || linkf))
 288         seq_setcur (mp, mp->hghsel);
 289     seq_save (mp);      /* synchronize message sequences */
 290
 291     context_replace (pfolder, folder);  /* update current folder   */
 292     context_save ();                    /* save the context file   */
 293     folder_free (mp);                   /* free folder structure   */
 294     return done (0);
 295 }
 296
 297
 298 /*
 299  * Read all the destination folders and
 300  * create folder structures for all of them.
 301  */
 302
 303 static void
 304 opnfolds (struct st_fold *folders, int nfolders)
 305 {
 306     register char *cp;
 307     char nmaildir[BUFSIZ];
 308     register struct st_fold *fp, *ep;
 309     register struct msgs *mp;
 310     struct stat st;
 311
 312     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 313         chdir (m_maildir (""));
 314         strncpy (nmaildir, m_maildir (fp->f_name), sizeof(nmaildir));
 315
 316         if (stat (nmaildir, &st) == NOTOK) {
 317             if (errno != ENOENT)
 318                 adios (nmaildir, "error on folder");
 319             cp = concat ("Create folder \"", nmaildir, "\"? ", NULL);
 320             if (!getanswer (cp))
 321                 done (1);
 322             free (cp);
 323             if (!makedir (nmaildir))
 324                 adios (NULL, "unable to create folder %s", nmaildir);
 325         }
 326
 327         if (chdir (nmaildir) == NOTOK)
 328             adios (nmaildir, "unable to change directory to");
 329         if (!(mp = folder_read (fp->f_name)))
 330             adios (NULL, "unable to read folder %s", fp->f_name);
 331         mp->curmsg = 0;
 332
 333         fp->f_mp = mp;
 334
 335         chdir (maildir);
 336     }
 337 }
 338
 339
 340 /*
 341  * Set the Previous-Sequence and then sychronize the
 342  * sequence file, for each destination folder.
 343  */
 344
 345 static void
 346 clsfolds (struct st_fold *folders, int nfolders)
 347 {
 348     register struct st_fold *fp, *ep;
 349     register struct msgs *mp;
 350
 351     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 352         mp = fp->f_mp;
 353         seq_setprev (mp);
 354         seq_save (mp);
 355     }
 356 }
 357
 358
 359 /*
 360  * If you have a "rmmproc" defined, we called that
 361  * to remove all the specified files.  If "rmmproc"
 362  * is not defined, then just unlink the files.
 363  */
 364
 365 static void
 366 remove_files (int filep, char **files)
 367 {
 368     int i;
 369     char **vec;
 370
 371     /* If rmmproc is defined, we use that */
 372     if (rmmproc) {
 373         vec = files++;          /* vec[0] = filevec[0] */
 374         files[filep] = NULL;    /* NULL terminate list */
 375
 376         fflush (stdout);
 377         vec[0] = r1bindex (rmmproc, '/');
 378         execvp (rmmproc, vec);
 379         adios (rmmproc, "unable to exec");
 380     }
 381
 382     /* Else just unlink the files */
 383     files++;    /* advance past filevec[0] */
 384     for (i = 0; i < filep; i++) {
 385         if (unlink (files[i]) == NOTOK)
 386             admonish (files[i], "unable to unlink");
 387     }
 388 }
 389
 390
 391 /*
 392  * Link (or copy) the message into each of
 393  * the destination folders.
 394  */
 395
 396 static int
 397 m_file (char *msgfile, struct st_fold *folders, int nfolders, int preserve, int refile)
 398 {
 399     int msgnum;
 400     struct st_fold *fp, *ep;
 401
 402     for (fp = folders, ep = folders + nfolders; fp < ep; fp++) {
 403         if ((msgnum = folder_addmsg (&fp->f_mp, msgfile, 1, 0, preserve, nfolders == 1 && refile, maildir)) == -1)
 404             return 1;
 405     }
 406     return 0;
 407 }