3 * folder(s).c -- set/list the current message and/or folder
4 * -- push/pop a folder onto/from the folder stack
5 * -- list the folder stack
9 * This code is Copyright (c) 2002, by the authors of nmh. See the
10 * COPYRIGHT file in the root directory of the nmh distribution for
11 * complete copyright information.
17 static struct swit switches[] = {
69 static int fshort = 0; /* output only folder names */
70 static int fcreat = 0; /* should we ask to create new folders? */
71 static int fpack = 0; /* are we packing the folder? */
72 static int fverb = 0; /* print actions taken while packing folder */
73 static int fheader = 0; /* should we output a header? */
74 static int frecurse = 0; /* recurse through subfolders */
75 static int ftotal = 0; /* should we output the totals? */
76 static int all = 0; /* should we output all folders */
78 static int total_folders = 0; /* total number of folders */
84 static char *stack = "Folder-Stack";
85 static char folder[BUFSIZ];
87 #define NUMFOLDERS 100
90 * This is how many folders we currently can hold in the array
91 * `folds'. We increase this amount by NUMFOLDERS at a time.
93 static int maxfolders;
97 * Structure to hold information about
98 * folders as we scan them.
106 int others; /* others == 1 if other files in folder */
107 int error; /* error == 1 for unreadable folder */
111 * Dynamically allocated space to hold
112 * all the folder information.
114 static struct FolderInfo *fi;
115 static int maxFolderInfo;
120 static void dodir (char *);
121 static int get_folder_info (char *, char *);
122 static void print_folders (void);
123 static int num_digits (int);
124 static int sfold (struct msgs *, char *);
125 static void addir (char *);
126 static void addfold (char *);
127 static int compare (char *, char *);
128 static void readonly_folders (void);
132 main (int argc, char **argv)
134 int printsw = 0, listsw = 0;
135 int pushsw = 0, popsw = 0;
136 char *cp, *dp, *msg = NULL, *argfolder = NULL;
137 char **ap, **argp, buf[BUFSIZ], **arguments;
141 setlocale(LC_ALL, "");
143 invo_name = r1bindex (argv[0], '/');
145 /* read user profile/context */
149 * If program was invoked with name ending
150 * in `s', then add switch `-all'.
152 if (argv[0][strlen (argv[0]) - 1] == 's')
155 arguments = getarguments (invo_name, argc, argv, 1);
158 while ((cp = *argp++)) {
160 switch (smatch (++cp, switches)) {
162 ambigsw (cp, switches);
165 adios (NULL, "-%s unknown", cp);
168 snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
170 print_help (buf, switches, 1);
173 print_version(invo_name);
259 if (*cp == '+' || *cp == '@') {
261 adios (NULL, "only one folder at a time!");
263 argfolder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
266 adios (NULL, "only one (current) message at a time!");
272 if (!context_find ("path"))
273 free (path ("./", TFOLDER));
274 nmhdir = concat (m_maildir (""), "/", NULL);
277 * If we aren't working with the folder stack
278 * (-push, -pop, -list) then the default is to print.
280 if (pushsw == 0 && popsw == 0 && listsw == 0)
283 /* Pushing a folder onto the folder stack */
286 /* If no folder is given, the current folder and */
287 /* the top of the folder stack are swapped. */
288 if ((cp = context_find (stack))) {
290 ap = brkstring (dp, " ", "\n");
291 argfolder = getcpy(*ap++);
293 adios (NULL, "no other folder");
295 for (cp = getcpy (getfolder (1)); *ap; ap++)
296 cp = add (*ap, add (" ", cp));
298 context_replace (stack, cp); /* update folder stack */
300 /* update folder stack */
301 context_replace (stack,
302 (cp = context_find (stack))
303 ? concat (getfolder (1), " ", cp, NULL)
304 : getcpy (getfolder (1)));
308 /* Popping a folder off of the folder stack */
311 adios (NULL, "sorry, no folders allowed with -pop");
312 if ((cp = context_find (stack))) {
314 ap = brkstring (dp, " ", "\n");
315 argfolder = getcpy(*ap++);
317 adios (NULL, "folder stack empty");
320 /* if there's anything left in the stack */
323 cp = add (*ap, add (" ", cp));
324 context_replace (stack, cp); /* update folder stack */
326 context_del (stack); /* delete folder stack entry from context */
330 if (pushsw || popsw) {
331 cp = m_maildir(argfolder);
332 if (access (cp, F_OK) == NOTOK)
333 adios (cp, "unable to find folder");
334 context_replace (pfolder, argfolder); /* update current folder */
335 context_save (); /* save the context file */
339 /* Listing the folder stack */
341 printf ("%s", argfolder ? argfolder : getfolder (1));
342 if ((cp = context_find (stack))) {
344 for (ap = brkstring (dp, " ", "\n"); *ap; ap++)
354 /* Allocate initial space to record folder names */
355 maxfolders = NUMFOLDERS;
356 if ((folds = malloc (maxfolders * sizeof(char *))) == NULL)
357 adios (NULL, "unable to allocate storage for folder names");
359 /* Allocate initial space to record folder information */
360 maxFolderInfo = NUMFOLDERS;
361 if ((fi = malloc (maxFolderInfo * sizeof(*fi))) == NULL)
362 adios (NULL, "unable to allocate storage for folder info");
367 if (all || ftotal > 0) {
369 * If no folder is given, do them all
373 admonish (NULL, "no folder given for message %s", msg);
374 readonly_folders (); /* do any readonly folders */
375 strncpy (folder, (cp = context_find (pfolder)) ? cp : "", sizeof(folder));
378 strncpy (folder, argfolder, sizeof(folder));
379 if (get_folder_info (argfolder, msg)) {
380 context_replace (pfolder, argfolder);/* update current folder */
381 context_save (); /* save the context file */
384 * Since recurse wasn't done in get_folder_info(),
385 * we still need to list all level-1 sub-folders.
391 strncpy (folder, argfolder ? argfolder : getfolder (1), sizeof(folder));
394 * Check if folder exists. If not, then see if
395 * we should create it, or just exit.
397 if (stat (strncpy (buf, m_maildir (folder), sizeof(buf)), &st) == -1) {
399 adios (buf, "error on folder");
401 /* ask before creating folder */
402 cp = concat ("Create folder \"", buf, "\"? ", NULL);
406 } else if (fcreat == -1) {
407 /* do not create, so exit */
411 adios (NULL, "unable to create folder %s", buf);
414 if (get_folder_info (folder, msg) && argfolder) {
415 /* update current folder */
416 context_replace (pfolder, argfolder);
421 * Print out folder information
425 context_save (); /* save the context file */
430 * Base routine for scanning a folder
443 /* change directory to base of nmh directory */
444 if (chdir (nmhdir) == NOTOK)
445 adios (nmhdir, "unable to change directory to");
447 addir (strncpy (buffer, dir, sizeof(buffer)));
449 for (i = start; i < foldp; i++) {
450 get_folder_info (folds[i], NULL);
459 get_folder_info (char *fold, char *msg)
463 struct msgs *mp = NULL;
468 * if necessary, reallocate the space
469 * for folder information
471 if (total_folders >= maxFolderInfo) {
472 maxFolderInfo += NUMFOLDERS;
473 if ((fi = realloc (fi, maxFolderInfo * sizeof(*fi))) == NULL)
474 adios (NULL, "unable to re-allocate storage for folder info");
485 mailfile = m_maildir (fold);
487 if (!chdir (mailfile)) {
488 if ((ftotal > 0) || !fshort || msg || fpack) {
490 * create message structure and get folder info
492 if (!(mp = folder_read (fold))) {
493 admonish (NULL, "unable to read folder %s", fold);
497 /* set the current message */
498 if (msg && !sfold (mp, msg))
502 if (folder_pack (&mp, fverb) == -1)
504 seq_save (mp); /* synchronize the sequences */
505 context_save (); /* save the context file */
508 /* record info for this folder */
509 if ((ftotal > 0) || !fshort) {
510 fi[i].nummsg = mp->nummsg;
511 fi[i].curmsg = mp->curmsg;
512 fi[i].lowmsg = mp->lowmsg;
513 fi[i].hghmsg = mp->hghmsg;
514 fi[i].others = other_files (mp);
517 folder_free (mp); /* free folder/message structure */
523 if (frecurse && (fshort || fi[i].others) && (fi[i].error == 0))
529 * Print folder information
535 int i, len, hasempty = 0, curprinted;
536 int maxlen = 0, maxnummsg = 0, maxlowmsg = 0;
537 int maxhghmsg = 0, maxcurmsg = 0, total_msgs = 0;
538 int nummsgdigits, lowmsgdigits;
539 int hghmsgdigits, curmsgdigits;
540 char tmpname[BUFSIZ];
543 * compute a few values needed to for
544 * printing various fields
546 for (i = 0; i < total_folders; i++) {
547 /* length of folder name */
548 len = strlen (fi[i].name);
552 /* If folder has error, skip the rest */
556 /* calculate total number of messages */
557 total_msgs += fi[i].nummsg;
559 /* maximum number of messages */
560 if (fi[i].nummsg > maxnummsg)
561 maxnummsg = fi[i].nummsg;
563 /* maximum low message */
564 if (fi[i].lowmsg > maxlowmsg)
565 maxlowmsg = fi[i].lowmsg;
567 /* maximum high message */
568 if (fi[i].hghmsg > maxhghmsg)
569 maxhghmsg = fi[i].hghmsg;
571 /* maximum current message */
572 if (fi[i].curmsg >= fi[i].lowmsg &&
573 fi[i].curmsg <= fi[i].hghmsg &&
574 fi[i].curmsg > maxcurmsg)
575 maxcurmsg = fi[i].curmsg;
577 /* check for empty folders */
578 if (fi[i].nummsg == 0)
581 nummsgdigits = num_digits (maxnummsg);
582 lowmsgdigits = num_digits (maxlowmsg);
583 hghmsgdigits = num_digits (maxhghmsg);
584 curmsgdigits = num_digits (maxcurmsg);
586 if (hasempty && nummsgdigits < 2)
592 if (fheader > 0 || (all && !fshort && fheader >= 0))
593 printf ("%-*s %*s %-*s; %-*s %*s\n",
595 nummsgdigits + 13, "# MESSAGES",
596 lowmsgdigits + hghmsgdigits + 4, " RANGE",
597 curmsgdigits + 4, "CUR",
601 * Print folder information
603 if (all || fshort || ftotal < 1) {
604 for (i = 0; i < total_folders; i++) {
606 printf ("%s\n", fi[i].name);
610 /* Add `+' to end of name, if folder is current */
611 if (strcmp (folder, fi[i].name))
612 snprintf (tmpname, sizeof(tmpname), "%s", fi[i].name);
614 snprintf (tmpname, sizeof(tmpname), "%s+", fi[i].name);
617 printf ("%-*s is unreadable\n", maxlen+1, tmpname);
621 printf ("%-*s ", maxlen+1, tmpname);
623 curprinted = 0; /* remember if we print cur */
624 if (fi[i].nummsg == 0) {
625 printf ("has %*s messages%*s",
627 fi[i].others ? lowmsgdigits + hghmsgdigits + 5 : 0, "");
629 printf ("has %*d message%s (%*d-%*d)",
630 nummsgdigits, fi[i].nummsg,
631 (fi[i].nummsg == 1) ? " " : "s",
632 lowmsgdigits, fi[i].lowmsg,
633 hghmsgdigits, fi[i].hghmsg);
634 if (fi[i].curmsg >= fi[i].lowmsg && fi[i].curmsg <= fi[i].hghmsg) {
636 printf ("; cur=%*d", curmsgdigits, fi[i].curmsg);
641 printf (";%*s (others)", curprinted ? 0 : curmsgdigits + 6, "");
647 * Print folder/message totals
649 if (ftotal > 0 || (all && !fshort && ftotal >= 0)) {
652 printf ("TOTAL = %d message%c in %d folder%s.\n",
653 total_msgs, total_msgs != 1 ? 's' : ' ',
654 total_folders, total_folders != 1 ? "s" : "");
661 * Calculate the number of digits in a nonnegative integer
670 adios (NULL, "oops, num_digits called with negative value");
684 * Set the current message and sychronize sequences
688 sfold (struct msgs *mp, char *msg)
690 /* parse the message range/sequence/name and set SELECTED */
691 if (!m_convert (mp, msg))
694 if (mp->numsel > 1) {
695 admonish (NULL, "only one message at a time!");
698 seq_setprev (mp); /* set the previous-sequence */
699 seq_setcur (mp, mp->lowsel);/* set current message */
700 seq_save (mp); /* synchronize message sequences */
701 context_save (); /* save the context file */
716 cp = name + strlen (name);
721 * A hack to skip over a leading
722 * "./" in folder names.
724 base = strcmp (name, "./") ? name : name + 2;
726 /* short-cut to see if directory has any sub-directories */
727 if (stat (name, &st) != -1 && st.st_nlink == 2)
730 if (!(dd = opendir (name))) {
731 admonish (name, "unable to read directory ");
736 * Keep track of the number of directories we've seen
737 * so we can quit stat'ing early, if we've seen them all.
741 while (nlink && (dp = readdir (dd))) {
742 if (!strcmp (dp->d_name, ".") || !strcmp (dp->d_name, "..")) {
746 if (cp + NLENGTH(dp) + 2 >= name + BUFSIZ)
748 strcpy (cp, dp->d_name);
749 if (stat (name, &st) != -1 && S_ISDIR(st.st_mode)) {
751 * Check if this was really a symbolic link pointing at
752 * a directory. If not, then decrement link count.
754 if (lstat (name, &st) == -1)
765 * Add the folder name into the
766 * list in a sorted fashion.
775 /* if necessary, reallocate the space for folder names */
776 if (foldp >= maxfolders) {
777 maxfolders += NUMFOLDERS;
778 if ((folds = realloc (folds, maxfolders * sizeof(char *))) == NULL)
779 adios (NULL, "unable to re-allocate storage for folder names");
783 for (i = start; i < foldp; i++)
784 if (compare (cp, folds[i]) < 0) {
785 for (j = foldp - 1; j >= i; j--)
786 folds[j + 1] = folds[j];
797 compare (char *s1, char *s2)
802 if ((i = *s1++ - *s2++))
809 * Do the read only folders
813 readonly_folders (void)
817 register struct node *np;
819 snprintf (atrcur, sizeof(atrcur), "atr-%s-", current);
820 atrlen = strlen (atrcur);
822 for (np = m_defs; np; np = np->n_next)
823 if (ssequal (atrcur, np->n_name)
824 && !ssequal (nmhdir, np->n_name + atrlen))
825 get_folder_info (np->n_name + atrlen, NULL);