rover.c

   1 #define _XOPEN_SOURCE       700
   2 #define _XOPEN_SOURCE_EXTENDED
   3 #define _FILE_OFFSET_BITS   64
   4
   5 #include <stdlib.h>
   6 #include <stdint.h>
   7 #include <ctype.h>
   8 #include <wchar.h>
   9 #include <wctype.h>
  10 #include <string.h>
  11 #include <sys/types.h>  /* pid_t, ... */
  12 #include <stdio.h>
  13 #include <limits.h>     /* PATH_MAX */
  14 #include <locale.h>     /* setlocale(), LC_ALL */
  15 #include <unistd.h>     /* chdir(), getcwd(), read(), close(), ... */
  16 #include <dirent.h>     /* DIR, struct dirent, opendir(), ... */
  17 #include <libgen.h>
  18 #include <sys/stat.h>
  19 #include <fcntl.h>      /* open() */
  20 #include <sys/wait.h>   /* waitpid() */
  21 #include <signal.h>     /* struct sigaction, sigaction() */
  22 #include <errno.h>
  23 #include <stdarg.h>
  24 #include <curses.h>
  25
  26 #include "config.h"
  27
  28 /*  This signal is not defined by POSIX, but should be
  29    present on all systems that have resizable terminals. */
  30 #ifndef SIGWINCH
  31 #define SIGWINCH  28
  32 #endif
  33
  34 /* String buffers. */
  35 #define BUFLEN  PATH_MAX
  36 static char BUF1[BUFLEN];
  37 static char BUF2[BUFLEN];
  38 static char INPUT[BUFLEN];
  39 static wchar_t WBUF[BUFLEN];
  40
  41 /* Listing view parameters. */
  42 #define HEIGHT      (LINES-4)
  43 #define STATUSPOS   (COLS-16)
  44
  45 /* Listing view flags. */
  46 #define SHOW_FILES      0x01u
  47 #define SHOW_DIRS       0x02u
  48 #define SHOW_HIDDEN     0x04u
  49
  50 /* Marks parameters. */
  51 #define BULK_INIT   5
  52 #define BULK_THRESH 256
  53
  54 /* Information associated to each entry in listing. */
  55 typedef struct Row {
  56     char *name;
  57     off_t size;
  58     mode_t mode;
  59     int islink;
  60     int marked;
  61 } Row;
  62
  63 /* Dynamic array of marked entries. */
  64 typedef struct Marks {
  65     char dirpath[PATH_MAX];
  66     int bulk;
  67     int nentries;
  68     char **entries;
  69 } Marks;
  70
  71 /* Line editing state. */
  72 typedef struct Edit {
  73     wchar_t buffer[BUFLEN+1];
  74     int left, right;
  75 } Edit;
  76
  77 /* Each tab only stores the following information. */
  78 typedef struct Tab {
  79     int scroll;
  80     int esel;
  81     uint8_t flags;
  82     char cwd[PATH_MAX];
  83 } Tab;
  84
  85 typedef struct Prog {
  86     off_t partial;
  87     off_t total;
  88     const char *msg;
  89 } Prog;
  90
  91 /* Global state. */
  92 static struct Rover {
  93     int tab;
  94     int nfiles;
  95     Row *rows;
  96     WINDOW *window;
  97     Marks marks;
  98     Edit edit;
  99     int edit_scroll;
 100     volatile sig_atomic_t pending_winch;
 101     Prog prog;
 102     Tab tabs[10];
 103 } rover;
 104
 105 /* Macros for accessing global state. */
 106 #define ENAME(I)    rover.rows[I].name
 107 #define ESIZE(I)    rover.rows[I].size
 108 #define EMODE(I)    rover.rows[I].mode
 109 #define ISLINK(I)   rover.rows[I].islink
 110 #define MARKED(I)   rover.rows[I].marked
 111 #define SCROLL      rover.tabs[rover.tab].scroll
 112 #define ESEL        rover.tabs[rover.tab].esel
 113 #define FLAGS       rover.tabs[rover.tab].flags
 114 #define CWD         rover.tabs[rover.tab].cwd
 115
 116 /* Helpers. */
 117 #define MIN(A, B)   ((A) < (B) ? (A) : (B))
 118 #define MAX(A, B)   ((A) > (B) ? (A) : (B))
 119 #define ISDIR(E)    (strchr((E), '/') != NULL)
 120
 121 /* Line Editing Macros. */
 122 #define EDIT_FULL(E)       ((E).left == (E).right)
 123 #define EDIT_CAN_LEFT(E)   ((E).left)
 124 #define EDIT_CAN_RIGHT(E)  ((E).right < BUFLEN-1)
 125 #define EDIT_LEFT(E)       (E).buffer[(E).right--] = (E).buffer[--(E).left]
 126 #define EDIT_RIGHT(E)      (E).buffer[(E).left++] = (E).buffer[++(E).right]
 127 #define EDIT_INSERT(E, C)  (E).buffer[(E).left++] = (C)
 128 #define EDIT_BACKSPACE(E)  (E).left--
 129 #define EDIT_DELETE(E)     (E).right++
 130 #define EDIT_CLEAR(E)      do { (E).left = 0; (E).right = BUFLEN-1; } while(0)
 131
 132 typedef enum EditStat {CONTINUE, CONFIRM, CANCEL} EditStat;
 133 typedef enum Color {DEFAULT, RED, GREEN, YELLOW, BLUE, CYAN, MAGENTA, WHITE, BLACK} Color;
 134 typedef int (*PROCESS)(const char *path);
 135
 136 static void
 137 init_marks(Marks *marks)
 138 {
 139     strcpy(marks->dirpath, "");
 140     marks->bulk = BULK_INIT;
 141     marks->nentries = 0;
 142     marks->entries = calloc(marks->bulk, sizeof *marks->entries);
 143 }
 144
 145 /* Unmark all entries. */
 146 static void
 147 mark_none(Marks *marks)
 148 {
 149     int i;
 150
 151     strcpy(marks->dirpath, "");
 152     for (i = 0; i < marks->bulk && marks->nentries; i++)
 153         if (marks->entries[i]) {
 154             free(marks->entries[i]);
 155             marks->entries[i] = NULL;
 156             marks->nentries--;
 157         }
 158     if (marks->bulk > BULK_THRESH) {
 159         /* Reset bulk to free some memory. */
 160         free(marks->entries);
 161         marks->bulk = BULK_INIT;
 162         marks->entries = calloc(marks->bulk, sizeof *marks->entries);
 163     }
 164 }
 165
 166 static void
 167 add_mark(Marks *marks, char *dirpath, char *entry)
 168 {
 169     int i;
 170
 171     if (!strcmp(marks->dirpath, dirpath)) {
 172         /* Append mark to directory. */
 173         if (marks->nentries == marks->bulk) {
 174             /* Expand bulk to accomodate new entry. */
 175             int extra = marks->bulk / 2;
 176             marks->bulk += extra; /* bulk *= 1.5; */
 177             marks->entries = realloc(marks->entries,
 178                                      marks->bulk * sizeof *marks->entries);
 179             memset(&marks->entries[marks->nentries], 0,
 180                    extra * sizeof *marks->entries);
 181             i = marks->nentries;
 182         } else {
 183             /* Search for empty slot (there must be one). */
 184             for (i = 0; i < marks->bulk; i++)
 185                 if (!marks->entries[i])
 186                     break;
 187         }
 188     } else {
 189         /* Directory changed. Discard old marks. */
 190         mark_none(marks);
 191         strcpy(marks->dirpath, dirpath);
 192         i = 0;
 193     }
 194     marks->entries[i] = malloc(strlen(entry) + 1);
 195     strcpy(marks->entries[i], entry);
 196     marks->nentries++;
 197 }
 198
 199 static void
 200 del_mark(Marks *marks, char *entry)
 201 {
 202     int i;
 203
 204     if (marks->nentries > 1) {
 205         for (i = 0; i < marks->bulk; i++)
 206             if (marks->entries[i] && !strcmp(marks->entries[i], entry))
 207                 break;
 208         free(marks->entries[i]);
 209         marks->entries[i] = NULL;
 210         marks->nentries--;
 211     } else
 212         mark_none(marks);
 213 }
 214
 215 static void
 216 free_marks(Marks *marks)
 217 {
 218     int i;
 219
 220     for (i = 0; i < marks->bulk && marks->nentries; i++)
 221         if (marks->entries[i]) {
 222             free(marks->entries[i]);
 223             marks->nentries--;
 224         }
 225     free(marks->entries);
 226 }
 227
 228 static void
 229 handle_winch(int sig)
 230 {
 231     rover.pending_winch = 1;
 232 }
 233
 234 static void
 235 enable_handlers()
 236 {
 237     struct sigaction sa;
 238
 239     memset(&sa, 0, sizeof (struct sigaction));
 240     sa.sa_handler = handle_winch;
 241     sigaction(SIGWINCH, &sa, NULL);
 242 }
 243
 244 static void
 245 disable_handlers()
 246 {
 247     struct sigaction sa;
 248
 249     memset(&sa, 0, sizeof (struct sigaction));
 250     sa.sa_handler = SIG_DFL;
 251     sigaction(SIGWINCH, &sa, NULL);
 252 }
 253
 254 static void update_view();
 255
 256 /* Handle any signals received since last call. */
 257 static void
 258 sync_signals()
 259 {
 260     if (rover.pending_winch) {
 261         /* SIGWINCH received: resize application accordingly. */
 262         delwin(rover.window);
 263         endwin();
 264         refresh();
 265         clear();
 266         rover.window = subwin(stdscr, LINES - 2, COLS, 1, 0);
 267         if (HEIGHT < rover.nfiles && SCROLL + HEIGHT > rover.nfiles)
 268             SCROLL = ESEL - HEIGHT;
 269         update_view();
 270         rover.pending_winch = 0;
 271     }
 272 }
 273
 274 /* This function must be used in place of getch().
 275    It handles signals while waiting for user input. */
 276 static int
 277 rover_getch()
 278 {
 279     int ch;
 280
 281     while ((ch = getch()) == ERR)
 282         sync_signals();
 283     return ch;
 284 }
 285
 286 /* This function must be used in place of get_wch().
 287    It handles signals while waiting for user input. */
 288 static int
 289 rover_get_wch(wint_t *wch)
 290 {
 291     wint_t ret;
 292
 293     while ((ret = get_wch(wch)) == (wint_t) ERR)
 294         sync_signals();
 295     return ret;
 296 }
 297
 298 /* Do a fork-exec to external program (e.g. $EDITOR). */
 299 static void
 300 spawn(char **args)
 301 {
 302     pid_t pid;
 303     int status;
 304
 305     setenv("RVSEL", rover.nfiles ? ENAME(ESEL) : "", 1);
 306     pid = fork();
 307     if (pid > 0) {
 308         /* fork() succeeded. */
 309         disable_handlers();
 310         endwin();
 311         waitpid(pid, &status, 0);
 312         enable_handlers();
 313         kill(getpid(), SIGWINCH);
 314     } else if (pid == 0) {
 315         /* Child process. */
 316         execvp(args[0], args);
 317     }
 318 }
 319
 320 static int
 321 open_with_env(const char *env, char *path)
 322 {
 323     char *program = getenv(env);
 324     if (program) {
 325 #ifdef RV_SHELL
 326         strncpy(BUF1, program, BUFLEN - 1);
 327         strncat(BUF1, " ", BUFLEN - strlen(program) - 1);
 328         strncat(BUF1, path, BUFLEN - strlen(program) - strlen(path) - 2);
 329         spawn((char *[]) {RV_SHELL, "-c", BUF1, NULL});
 330 #else
 331         spawn((char *[]) {program, path, NULL});
 332 #endif
 333         return 1;
 334     }
 335     return 0;
 336 }
 337
 338 /* Curses setup. */
 339 static void
 340 init_term()
 341 {
 342     setlocale(LC_ALL, "");
 343     initscr();
 344     cbreak(); /* Get one character at a time. */
 345     timeout(100); /* For getch(). */
 346     noecho();
 347     nonl(); /* No NL->CR/NL on output. */
 348     intrflush(stdscr, FALSE);
 349     keypad(stdscr, TRUE);
 350     curs_set(FALSE); /* Hide blinking cursor. */
 351     if (has_colors()) {
 352         short bg;
 353         start_color();
 354 #ifdef NCURSES_EXT_FUNCS
 355         use_default_colors();
 356         bg = -1;
 357 #else
 358         bg = COLOR_BLACK;
 359 #endif
 360         init_pair(RED, COLOR_RED, bg);
 361         init_pair(GREEN, COLOR_GREEN, bg);
 362         init_pair(YELLOW, COLOR_YELLOW, bg);
 363         init_pair(BLUE, COLOR_BLUE, bg);
 364         init_pair(CYAN, COLOR_CYAN, bg);
 365         init_pair(MAGENTA, COLOR_MAGENTA, bg);
 366         init_pair(WHITE, COLOR_WHITE, bg);
 367         init_pair(BLACK, COLOR_BLACK, bg);
 368     }
 369     atexit((void (*)(void)) endwin);
 370     enable_handlers();
 371 }
 372
 373 /* Update the listing view. */
 374 static void
 375 update_view()
 376 {
 377     int i, j;
 378     int numsize;
 379     int ishidden;
 380     int marking;
 381
 382     mvhline(0, 0, ' ', COLS);
 383     attr_on(A_BOLD, NULL);
 384     color_set(RVC_TABNUM, NULL);
 385     mvaddch(0, COLS - 2, rover.tab + '0');
 386     attr_off(A_BOLD, NULL);
 387     if (rover.marks.nentries) {
 388         numsize = snprintf(BUF1, BUFLEN, "%d", rover.marks.nentries);
 389         color_set(RVC_MARKS, NULL);
 390         mvaddstr(0, COLS - 3 - numsize, BUF1);
 391     } else
 392         numsize = -1;
 393     color_set(RVC_CWD, NULL);
 394     mbstowcs(WBUF, CWD, PATH_MAX);
 395     mvaddnwstr(0, 0, WBUF, COLS - 4 - numsize);
 396     wcolor_set(rover.window, RVC_BORDER, NULL);
 397     wborder(rover.window, 0, 0, 0, 0, 0, 0, 0, 0);
 398     ESEL = MAX(MIN(ESEL, rover.nfiles - 1), 0);
 399     /* Selection might not be visible, due to cursor wrapping or window
 400        shrinking. In that case, the scroll must be moved to make it visible. */
 401     if (rover.nfiles > HEIGHT) {
 402         SCROLL = MAX(MIN(SCROLL, ESEL), ESEL - HEIGHT + 1);
 403         SCROLL = MIN(MAX(SCROLL, 0), rover.nfiles - HEIGHT);
 404     } else
 405         SCROLL = 0;
 406     marking = !strcmp(CWD, rover.marks.dirpath);
 407     for (i = 0, j = SCROLL; i < HEIGHT && j < rover.nfiles; i++, j++) {
 408         ishidden = ENAME(j)[0] == '.';
 409         if (j == ESEL)
 410             wattr_on(rover.window, A_REVERSE, NULL);
 411         if (ISLINK(j))
 412             wcolor_set(rover.window, RVC_LINK, NULL);
 413         else if (ishidden)
 414             wcolor_set(rover.window, RVC_HIDDEN, NULL);
 415         else if (S_ISREG(EMODE(j))) {
 416             if (EMODE(j) & (S_IXUSR | S_IXGRP | S_IXOTH))
 417                 wcolor_set(rover.window, RVC_EXEC, NULL);
 418             else
 419                 wcolor_set(rover.window, RVC_REG, NULL);
 420         } else if (S_ISDIR(EMODE(j)))
 421             wcolor_set(rover.window, RVC_DIR, NULL);
 422         else if (S_ISCHR(EMODE(j)))
 423             wcolor_set(rover.window, RVC_CHR, NULL);
 424         else if (S_ISBLK(EMODE(j)))
 425             wcolor_set(rover.window, RVC_BLK, NULL);
 426         else if (S_ISFIFO(EMODE(j)))
 427             wcolor_set(rover.window, RVC_FIFO, NULL);
 428         else if (S_ISSOCK(EMODE(j)))
 429             wcolor_set(rover.window, RVC_SOCK, NULL);
 430         if (S_ISDIR(EMODE(j))) {
 431             mbstowcs(WBUF, ENAME(j), PATH_MAX);
 432             if (ISLINK(j))
 433                 wcscat(WBUF, L"/");
 434         } else {
 435             char *suffix, *suffixes = "BKMGTPEZY";
 436             off_t human_size = ESIZE(j) * 10;
 437             int length = mbstowcs(NULL, ENAME(j), 0);
 438             for (suffix = suffixes; human_size >= 10240; suffix++)
 439                 human_size = (human_size + 512) / 1024;
 440             if (*suffix == 'B')
 441                 swprintf(WBUF, PATH_MAX, L"%s%*d %c", ENAME(j),
 442                          (int) (COLS - length - 6),
 443                          (int) human_size / 10, *suffix);
 444             else
 445                 swprintf(WBUF, PATH_MAX, L"%s%*d.%d %c", ENAME(j),
 446                          (int) (COLS - length - 8),
 447                          (int) human_size / 10, (int) human_size % 10, *suffix);
 448         }
 449         mvwhline(rover.window, i + 1, 1, ' ', COLS - 2);
 450         mvwaddnwstr(rover.window, i + 1, 2, WBUF, COLS - 4);
 451         if (marking && MARKED(j)) {
 452             wcolor_set(rover.window, RVC_MARKS, NULL);
 453             mvwaddch(rover.window, i + 1, 1, RVS_MARK);
 454         } else
 455             mvwaddch(rover.window, i + 1, 1, ' ');
 456         if (j == ESEL)
 457             wattr_off(rover.window, A_REVERSE, NULL);
 458     }
 459     for (; i < HEIGHT; i++)
 460         mvwhline(rover.window, i + 1, 1, ' ', COLS - 2);
 461     if (rover.nfiles > HEIGHT) {
 462         int center, height;
 463         center = (SCROLL + HEIGHT / 2) * HEIGHT / rover.nfiles;
 464         height = (HEIGHT-1) * HEIGHT / rover.nfiles;
 465         if (!height) height = 1;
 466         wcolor_set(rover.window, RVC_SCROLLBAR, NULL);
 467         mvwvline(rover.window, center-height/2+1, COLS-1, RVS_SCROLLBAR, height);
 468     }
 469     BUF1[0] = FLAGS & SHOW_FILES  ? 'F' : ' ';
 470     BUF1[1] = FLAGS & SHOW_DIRS   ? 'D' : ' ';
 471     BUF1[2] = FLAGS & SHOW_HIDDEN ? 'H' : ' ';
 472     if (!rover.nfiles)
 473         strcpy(BUF2, "0/0");
 474     else
 475         snprintf(BUF2, BUFLEN, "%d/%d", ESEL + 1, rover.nfiles);
 476     snprintf(BUF1+3, BUFLEN-3, "%12s", BUF2);
 477     color_set(RVC_STATUS, NULL);
 478     mvaddstr(LINES - 1, STATUSPOS, BUF1);
 479     wrefresh(rover.window);
 480 }
 481
 482 /* Show a message on the status bar. */
 483 static void
 484 message(Color color, char *fmt, ...)
 485 {
 486     int len, pos;
 487     va_list args;
 488
 489     va_start(args, fmt);
 490     vsnprintf(BUF1, MIN(BUFLEN, STATUSPOS), fmt, args);
 491     va_end(args);
 492     len = strlen(BUF1);
 493     pos = (STATUSPOS - len) / 2;
 494     attr_on(A_BOLD, NULL);
 495     color_set(color, NULL);
 496     mvaddstr(LINES - 1, pos, BUF1);
 497     color_set(DEFAULT, NULL);
 498     attr_off(A_BOLD, NULL);
 499 }
 500
 501 /* Clear message area, leaving only status info. */
 502 static void
 503 clear_message()
 504 {
 505     mvhline(LINES - 1, 0, ' ', STATUSPOS);
 506 }
 507
 508 /* Comparison used to sort listing entries. */
 509 static int
 510 rowcmp(const void *a, const void *b)
 511 {
 512     int isdir1, isdir2, cmpdir;
 513     const Row *r1 = a;
 514     const Row *r2 = b;
 515     isdir1 = S_ISDIR(r1->mode);
 516     isdir2 = S_ISDIR(r2->mode);
 517     cmpdir = isdir2 - isdir1;
 518     return cmpdir ? cmpdir : strcoll(r1->name, r2->name);
 519 }
 520
 521 /* Get all entries in current working directory. */
 522 static int
 523 ls(Row **rowsp, uint8_t flags)
 524 {
 525     DIR *dp;
 526     struct dirent *ep;
 527     struct stat statbuf;
 528     Row *rows;
 529     int i, n;
 530
 531     if(!(dp = opendir("."))) return -1;
 532     n = -2; /* We don't want the entries "." and "..". */
 533     while (readdir(dp)) n++;
 534     rewinddir(dp);
 535     rows = malloc(n * sizeof *rows);
 536     i = 0;
 537     while ((ep = readdir(dp))) {
 538         if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
 539             continue;
 540         if (!(flags & SHOW_HIDDEN) && ep->d_name[0] == '.')
 541             continue;
 542         lstat(ep->d_name, &statbuf);
 543         rows[i].islink = S_ISLNK(statbuf.st_mode);
 544         stat(ep->d_name, &statbuf);
 545         if (S_ISDIR(statbuf.st_mode)) {
 546             if (flags & SHOW_DIRS) {
 547                 rows[i].name = malloc(strlen(ep->d_name) + 2);
 548                 strcpy(rows[i].name, ep->d_name);
 549                 if (!rows[i].islink)
 550                     strcat(rows[i].name, "/");
 551                 rows[i].mode = statbuf.st_mode;
 552                 i++;
 553             }
 554         } else if (flags & SHOW_FILES) {
 555             rows[i].name = malloc(strlen(ep->d_name) + 1);
 556             strcpy(rows[i].name, ep->d_name);
 557             rows[i].size = statbuf.st_size;
 558             rows[i].mode = statbuf.st_mode;
 559             i++;
 560         }
 561     }
 562     n = i; /* Ignore unused space in array caused by filters. */
 563     qsort(rows, n, sizeof (*rows), rowcmp);
 564     closedir(dp);
 565     *rowsp = rows;
 566     return n;
 567 }
 568
 569 static void
 570 free_rows(Row **rowsp, int nfiles)
 571 {
 572     int i;
 573
 574     for (i = 0; i < nfiles; i++)
 575         free((*rowsp)[i].name);
 576     free(*rowsp);
 577     *rowsp = NULL;
 578 }
 579
 580 /* Change working directory to the path in CWD. */
 581 static void
 582 cd(int reset)
 583 {
 584     int i, j;
 585
 586     message(CYAN, "Loading...");
 587     refresh();
 588     if (reset) ESEL = SCROLL = 0;
 589     chdir(CWD);
 590     if (rover.nfiles)
 591         free_rows(&rover.rows, rover.nfiles);
 592     rover.nfiles = ls(&rover.rows, FLAGS);
 593     if (!strcmp(CWD, rover.marks.dirpath)) {
 594         for (i = 0; i < rover.nfiles; i++) {
 595             for (j = 0; j < rover.marks.bulk; j++)
 596                 if (
 597                     rover.marks.entries[j] &&
 598                     !strcmp(rover.marks.entries[j], ENAME(i))
 599                 )
 600                     break;
 601             MARKED(i) = j < rover.marks.bulk;
 602         }
 603     } else
 604         for (i = 0; i < rover.nfiles; i++)
 605             MARKED(i) = 0;
 606     clear_message();
 607     update_view();
 608 }
 609
 610 /* Select a target entry, if it is present. */
 611 static void
 612 try_to_sel(const char *target)
 613 {
 614     ESEL = 0;
 615     if (!ISDIR(target))
 616         while ((ESEL+1) < rover.nfiles && S_ISDIR(EMODE(ESEL)))
 617             ESEL++;
 618     while ((ESEL+1) < rover.nfiles && strcoll(ENAME(ESEL), target) < 0)
 619         ESEL++;
 620 }
 621
 622 /* Reload CWD, but try to keep selection. */
 623 static void
 624 reload()
 625 {
 626     if (rover.nfiles) {
 627         strcpy(INPUT, ENAME(ESEL));
 628         cd(0);
 629         try_to_sel(INPUT);
 630         update_view();
 631     } else
 632         cd(1);
 633 }
 634
 635 static off_t
 636 count_dir(const char *path)
 637 {
 638     DIR *dp;
 639     struct dirent *ep;
 640     struct stat statbuf;
 641     char subpath[PATH_MAX];
 642     off_t total;
 643
 644     if(!(dp = opendir(path))) return 0;
 645     total = 0;
 646     while ((ep = readdir(dp))) {
 647         if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
 648             continue;
 649         snprintf(subpath, PATH_MAX, "%s%s", path, ep->d_name);
 650         lstat(subpath, &statbuf);
 651         if (S_ISDIR(statbuf.st_mode)) {
 652             strcat(subpath, "/");
 653             total += count_dir(subpath);
 654         } else
 655             total += statbuf.st_size;
 656     }
 657     closedir(dp);
 658     return total;
 659 }
 660
 661 static off_t
 662 count_marked()
 663 {
 664     int i;
 665     char *entry;
 666     off_t total;
 667     struct stat statbuf;
 668
 669     total = 0;
 670     chdir(rover.marks.dirpath);
 671     for (i = 0; i < rover.marks.bulk; i++) {
 672         entry = rover.marks.entries[i];
 673         if (entry) {
 674             if (ISDIR(entry)) {
 675                 total += count_dir(entry);
 676             } else {
 677                 lstat(entry, &statbuf);
 678                 total += statbuf.st_size;
 679             }
 680         }
 681     }
 682     chdir(CWD);
 683     return total;
 684 }
 685
 686 /* Recursively process a source directory using CWD as destination root.
 687    For each node (i.e. directory), do the following:
 688     1. call pre(destination);
 689     2. call proc() on every child leaf (i.e. files);
 690     3. recurse into every child node;
 691     4. call pos(source).
 692    E.g. to move directory /src/ (and all its contents) inside /dst/:
 693     strcpy(CWD, "/dst/");
 694     process_dir(adddir, movfile, deldir, "/src/"); */
 695 static int
 696 process_dir(PROCESS pre, PROCESS proc, PROCESS pos, const char *path)
 697 {
 698     int ret;
 699     DIR *dp;
 700     struct dirent *ep;
 701     struct stat statbuf;
 702     char subpath[PATH_MAX];
 703
 704     ret = 0;
 705     if (pre) {
 706         char dstpath[PATH_MAX];
 707         strcpy(dstpath, CWD);
 708         strcat(dstpath, path + strlen(rover.marks.dirpath));
 709         ret |= pre(dstpath);
 710     }
 711     if(!(dp = opendir(path))) return -1;
 712     while ((ep = readdir(dp))) {
 713         if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
 714             continue;
 715         snprintf(subpath, PATH_MAX, "%s%s", path, ep->d_name);
 716         lstat(subpath, &statbuf);
 717         if (S_ISDIR(statbuf.st_mode)) {
 718             strcat(subpath, "/");
 719             ret |= process_dir(pre, proc, pos, subpath);
 720         } else
 721             ret |= proc(subpath);
 722     }
 723     closedir(dp);
 724     if (pos) ret |= pos(path);
 725     return ret;
 726 }
 727
 728 /* Process all marked entries using CWD as destination root.
 729    All marked entries that are directories will be recursively processed.
 730    See process_dir() for details on the parameters. */
 731 static void
 732 process_marked(PROCESS pre, PROCESS proc, PROCESS pos,
 733                const char *msg_doing, const char *msg_done)
 734 {
 735     int i, ret;
 736     char *entry;
 737     char path[PATH_MAX];
 738
 739     clear_message();
 740     message(CYAN, "%s...", msg_doing);
 741     refresh();
 742     rover.prog = (Prog) {0, count_marked(), msg_doing};
 743     for (i = 0; i < rover.marks.bulk; i++) {
 744         entry = rover.marks.entries[i];
 745         if (entry) {
 746             ret = 0;
 747             snprintf(path, PATH_MAX, "%s%s", rover.marks.dirpath, entry);
 748             if (ISDIR(entry)) {
 749                 if (!strncmp(path, CWD, strlen(path)))
 750                     ret = -1;
 751                 else
 752                     ret = process_dir(pre, proc, pos, path);
 753             } else
 754                 ret = proc(path);
 755             if (!ret) {
 756                 del_mark(&rover.marks, entry);
 757                 reload();
 758             }
 759         }
 760     }
 761     rover.prog.total = 0;
 762     reload();
 763     if (!rover.marks.nentries)
 764         message(GREEN, "%s all marked entries.", msg_done);
 765     else
 766         message(RED, "Some errors occured while %s.", msg_doing);
 767     RV_ALERT();
 768 }
 769
 770 static void
 771 update_progress(off_t delta)
 772 {
 773     int percent;
 774
 775     if (!rover.prog.total) return;
 776     rover.prog.partial += delta;
 777     percent = (int) (rover.prog.partial * 100 / rover.prog.total);
 778     message(CYAN, "%s...%d%%", rover.prog.msg, percent);
 779     refresh();
 780 }
 781
 782 /* Wrappers for file operations. */
 783 static int delfile(const char *path) {
 784     int ret;
 785     struct stat st;
 786
 787     ret = lstat(path, &st);
 788     if (ret < 0) return ret;
 789     update_progress(st.st_size);
 790     return unlink(path);
 791 }
 792 static PROCESS deldir = rmdir;
 793 static int addfile(const char *path) {
 794     /* Using creat(2) because mknod(2) doesn't seem to be portable. */
 795     int ret;
 796
 797     ret = creat(path, 0644);
 798     if (ret < 0) return ret;
 799     return close(ret);
 800 }
 801 static int cpyfile(const char *srcpath) {
 802     int src, dst, ret;
 803     size_t size;
 804     struct stat st;
 805     char buf[BUFSIZ];
 806     char dstpath[PATH_MAX];
 807
 808     strcpy(dstpath, CWD);
 809     strcat(dstpath, srcpath + strlen(rover.marks.dirpath));
 810     ret = lstat(srcpath, &st);
 811     if (ret < 0) return ret;
 812     if (S_ISLNK(st.st_mode)) {
 813         ret = readlink(srcpath, BUF1, BUFLEN);
 814         if (ret < 0) return ret;
 815         BUF1[ret] = '\0';
 816         ret = symlink(BUF1, dstpath);
 817     } else {
 818         ret = src = open(srcpath, O_RDONLY);
 819         if (ret < 0) return ret;
 820         ret = dst = creat(dstpath, st.st_mode);
 821         if (ret < 0) return ret;
 822         while ((size = read(src, buf, BUFSIZ)) > 0) {
 823             write(dst, buf, size);
 824             update_progress(size);
 825             sync_signals();
 826         }
 827         close(src);
 828         close(dst);
 829         ret = 0;
 830     }
 831     return ret;
 832 }
 833 static int adddir(const char *path) {
 834     int ret;
 835     struct stat st;
 836
 837     ret = stat(CWD, &st);
 838     if (ret < 0) return ret;
 839     return mkdir(path, st.st_mode);
 840 }
 841 static int movfile(const char *srcpath) {
 842     int ret;
 843     struct stat st;
 844     char dstpath[PATH_MAX];
 845
 846     strcpy(dstpath, CWD);
 847     strcat(dstpath, srcpath + strlen(rover.marks.dirpath));
 848     ret = rename(srcpath, dstpath);
 849     if (ret == 0) {
 850         ret = lstat(dstpath, &st);
 851         if (ret < 0) return ret;
 852         update_progress(st.st_size);
 853     } else if (errno == EXDEV) {
 854         ret = cpyfile(srcpath);
 855         if (ret < 0) return ret;
 856         ret = unlink(srcpath);
 857     }
 858     return ret;
 859 }
 860
 861 static void
 862 start_line_edit(const char *init_input)
 863 {
 864     curs_set(TRUE);
 865     strncpy(INPUT, init_input, BUFLEN);
 866     rover.edit.left = mbstowcs(rover.edit.buffer, init_input, BUFLEN);
 867     rover.edit.right = BUFLEN - 1;
 868     rover.edit.buffer[BUFLEN] = L'\0';
 869     rover.edit_scroll = 0;
 870 }
 871
 872 /* Read input and change editing state accordingly. */
 873 static EditStat
 874 get_line_edit()
 875 {
 876     wchar_t eraser, killer, wch;
 877     int ret, length;
 878
 879     ret = rover_get_wch((wint_t *) &wch);
 880     erasewchar(&eraser);
 881     killwchar(&killer);
 882     if (ret == KEY_CODE_YES) {
 883         if (wch == KEY_ENTER) {
 884             curs_set(FALSE);
 885             return CONFIRM;
 886         } else if (wch == KEY_LEFT) {
 887             if (EDIT_CAN_LEFT(rover.edit)) EDIT_LEFT(rover.edit);
 888         } else if (wch == KEY_RIGHT) {
 889             if (EDIT_CAN_RIGHT(rover.edit)) EDIT_RIGHT(rover.edit);
 890         } else if (wch == KEY_UP) {
 891             while (EDIT_CAN_LEFT(rover.edit)) EDIT_LEFT(rover.edit);
 892         } else if (wch == KEY_DOWN) {
 893             while (EDIT_CAN_RIGHT(rover.edit)) EDIT_RIGHT(rover.edit);
 894         } else if (wch == KEY_BACKSPACE) {
 895             if (EDIT_CAN_LEFT(rover.edit)) EDIT_BACKSPACE(rover.edit);
 896         } else if (wch == KEY_DC) {
 897             if (EDIT_CAN_RIGHT(rover.edit)) EDIT_DELETE(rover.edit);
 898         }
 899     } else {
 900         if (wch == L'\r' || wch == L'\n') {
 901             curs_set(FALSE);
 902             return CONFIRM;
 903         } else if (wch == L'\t') {
 904             curs_set(FALSE);
 905             return CANCEL;
 906         } else if (wch == eraser) {
 907             if (EDIT_CAN_LEFT(rover.edit)) EDIT_BACKSPACE(rover.edit);
 908         } else if (wch == killer) {
 909             EDIT_CLEAR(rover.edit);
 910             clear_message();
 911         } else if (iswprint(wch)) {
 912             if (!EDIT_FULL(rover.edit)) EDIT_INSERT(rover.edit, wch);
 913         }
 914     }
 915     /* Encode edit contents in INPUT. */
 916     rover.edit.buffer[rover.edit.left] = L'\0';
 917     length = wcstombs(INPUT, rover.edit.buffer, BUFLEN);
 918     wcstombs(&INPUT[length], &rover.edit.buffer[rover.edit.right+1],
 919              BUFLEN-length);
 920     return CONTINUE;
 921 }
 922
 923 /* Update line input on the screen. */
 924 static void
 925 update_input(const char *prompt, Color color)
 926 {
 927     int plen, ilen, maxlen;
 928
 929     plen = strlen(prompt);
 930     ilen = mbstowcs(NULL, INPUT, 0);
 931     maxlen = STATUSPOS - plen - 2;
 932     if (ilen - rover.edit_scroll < maxlen)
 933         rover.edit_scroll = MAX(ilen - maxlen, 0);
 934     else if (rover.edit.left > rover.edit_scroll + maxlen - 1)
 935         rover.edit_scroll = rover.edit.left - maxlen;
 936     else if (rover.edit.left < rover.edit_scroll)
 937         rover.edit_scroll = MAX(rover.edit.left - maxlen, 0);
 938     color_set(RVC_PROMPT, NULL);
 939     mvaddstr(LINES - 1, 0, prompt);
 940     color_set(color, NULL);
 941     mbstowcs(WBUF, INPUT, COLS);
 942     mvaddnwstr(LINES - 1, plen, &WBUF[rover.edit_scroll], maxlen);
 943     mvaddch(LINES - 1, plen + MIN(ilen - rover.edit_scroll, maxlen + 1), ' ');
 944     color_set(DEFAULT, NULL);
 945     if (rover.edit_scroll)
 946         mvaddch(LINES - 1, plen - 1, '<');
 947     if (ilen > rover.edit_scroll + maxlen)
 948         mvaddch(LINES - 1, plen + maxlen, '>');
 949     move(LINES - 1, plen + rover.edit.left - rover.edit_scroll);
 950 }
 951
 952 int
 953 main(int argc, char *argv[])
 954 {
 955     int i, ch;
 956     char *program;
 957     char *entry;
 958     const char *key;
 959     DIR *d;
 960     EditStat edit_stat;
 961     FILE *save_cwd_file = NULL;
 962     FILE *save_marks_file = NULL;
 963
 964     if (argc >= 2) {
 965         if (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version")) {
 966             printf("rover %s\n", RV_VERSION);
 967             return 0;
 968         } else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
 969             printf(
 970                 "Usage: rover [OPTIONS] [DIR [DIR [...]]]\n"
 971                 "       Browse current directory or the ones specified.\n\n"
 972                 "  or:  rover -h|--help\n"
 973                 "       Print this help message and exit.\n\n"
 974                 "  or:  rover -v|--version\n"
 975                 "       Print program version and exit.\n\n"
 976                 "See rover(1) for more information.\n"
 977                 "Rover homepage: <https://github.com/lecram/rover>.\n"
 978             );
 979             return 0;
 980         } else if (!strcmp(argv[1], "-d") || !strcmp(argv[1], "--save-cwd")) {
 981             if (argc > 2) {
 982                 save_cwd_file = fopen(argv[2], "w");
 983                 argc -= 2; argv += 2;
 984             } else {
 985                 fprintf(stderr, "error: missing argument to %s\n", argv[1]);
 986                 return 1;
 987             }
 988         } else if (!strcmp(argv[1], "-m") || !strcmp(argv[1], "--save-marks")) {
 989             if (argc > 2) {
 990                 save_marks_file = fopen(argv[2], "a");
 991                 argc -= 2; argv += 2;
 992             } else {
 993                 fprintf(stderr, "error: missing argument to %s\n", argv[1]);
 994                 return 1;
 995             }
 996         }
 997     }
 998     init_term();
 999     rover.nfiles = 0;
1000     for (i = 0; i < 10; i++) {
1001         rover.tabs[i].esel = rover.tabs[i].scroll = 0;
1002         rover.tabs[i].flags = SHOW_FILES | SHOW_DIRS;
1003     }
1004     strcpy(rover.tabs[0].cwd, getenv("HOME"));
1005     for (i = 1; i < argc && i < 10; i++) {
1006         if ((d = opendir(argv[i]))) {
1007             realpath(argv[i], rover.tabs[i].cwd);
1008             closedir(d);
1009         } else
1010             strcpy(rover.tabs[i].cwd, rover.tabs[0].cwd);
1011     }
1012     getcwd(rover.tabs[i].cwd, PATH_MAX);
1013     for (i++; i < 10; i++)
1014         strcpy(rover.tabs[i].cwd, rover.tabs[i-1].cwd);
1015     for (i = 0; i < 10; i++)
1016         if (rover.tabs[i].cwd[strlen(rover.tabs[i].cwd) - 1] != '/')
1017             strcat(rover.tabs[i].cwd, "/");
1018     rover.tab = 1;
1019     rover.window = subwin(stdscr, LINES - 2, COLS, 1, 0);
1020     init_marks(&rover.marks);
1021     cd(1);
1022     while (1) {
1023         ch = rover_getch();
1024         key = keyname(ch);
1025         clear_message();
1026         if (!strcmp(key, RVK_QUIT)) break;
1027         else if (ch >= '0' && ch <= '9') {
1028             rover.tab = ch - '0';
1029             cd(0);
1030         } else if (!strcmp(key, RVK_HELP)) {
1031             spawn((char *[]) {"man", "rover", NULL});
1032         } else if (!strcmp(key, RVK_DOWN)) {
1033             if (!rover.nfiles) continue;
1034             ESEL = MIN(ESEL + 1, rover.nfiles - 1);
1035             update_view();
1036         } else if (!strcmp(key, RVK_UP)) {
1037             if (!rover.nfiles) continue;
1038             ESEL = MAX(ESEL - 1, 0);
1039             update_view();
1040         } else if (!strcmp(key, RVK_JUMP_DOWN)) {
1041             if (!rover.nfiles) continue;
1042             ESEL = MIN(ESEL + RV_JUMP, rover.nfiles - 1);
1043             if (rover.nfiles > HEIGHT)
1044                 SCROLL = MIN(SCROLL + RV_JUMP, rover.nfiles - HEIGHT);
1045             update_view();
1046         } else if (!strcmp(key, RVK_JUMP_UP)) {
1047             if (!rover.nfiles) continue;
1048             ESEL = MAX(ESEL - RV_JUMP, 0);
1049             SCROLL = MAX(SCROLL - RV_JUMP, 0);
1050             update_view();
1051         } else if (!strcmp(key, RVK_JUMP_TOP)) {
1052             if (!rover.nfiles) continue;
1053             ESEL = 0;
1054             update_view();
1055         } else if (!strcmp(key, RVK_JUMP_BOTTOM)) {
1056             if (!rover.nfiles) continue;
1057             ESEL = rover.nfiles - 1;
1058             update_view();
1059         } else if (!strcmp(key, RVK_CD_DOWN)) {
1060             if (!rover.nfiles || !S_ISDIR(EMODE(ESEL))) continue;
1061             if (chdir(ENAME(ESEL)) == -1) {
1062                 message(RED, "Cannot access \"%s\".", ENAME(ESEL));
1063                 continue;
1064             }
1065             strcat(CWD, ENAME(ESEL));
1066             cd(1);
1067         } else if (!strcmp(key, RVK_CD_UP)) {
1068             char *dirname, first;
1069             if (!strcmp(CWD, "/")) continue;
1070             CWD[strlen(CWD) - 1] = '\0';
1071             dirname = strrchr(CWD, '/') + 1;
1072             first = dirname[0];
1073             dirname[0] = '\0';
1074             cd(1);
1075             dirname[0] = first;
1076             dirname[strlen(dirname)] = '/';
1077             try_to_sel(dirname);
1078             dirname[0] = '\0';
1079             if (rover.nfiles > HEIGHT)
1080                 SCROLL = ESEL - HEIGHT / 2;
1081             update_view();
1082         } else if (!strcmp(key, RVK_HOME)) {
1083             strcpy(CWD, getenv("HOME"));
1084             if (CWD[strlen(CWD) - 1] != '/')
1085                 strcat(CWD, "/");
1086             cd(1);
1087         } else if (!strcmp(key, RVK_TARGET)) {
1088             char *bname, first;
1089             int is_dir = S_ISDIR(EMODE(ESEL));
1090             ssize_t len = readlink(ENAME(ESEL), BUF1, BUFLEN-1);
1091             if (len == -1) continue;
1092             BUF1[len] = '\0';
1093             if (access(BUF1, F_OK) == -1) {
1094                 char *msg;
1095                 switch (errno) {
1096                 case EACCES:
1097                     msg = "Cannot access \"%s\".";
1098                     break;
1099                 case ENOENT:
1100                     msg = "\"%s\" does not exist.";
1101                     break;
1102                 default:
1103                     msg = "Cannot navigate to \"%s\".";
1104                 }
1105                 strcpy(BUF2, BUF1); /* message() uses BUF1. */
1106                 message(RED, msg, BUF2);
1107                 continue;
1108             }
1109             realpath(BUF1, CWD);
1110             len = strlen(CWD);
1111             if (CWD[len - 1] == '/')
1112                 CWD[len - 1] = '\0';
1113             bname = strrchr(CWD, '/') + 1;
1114             first = *bname;
1115             *bname = '\0';
1116             cd(1);
1117             *bname = first;
1118             if (is_dir)
1119                 strcat(CWD, "/");
1120             try_to_sel(bname);
1121             *bname = '\0';
1122             update_view();
1123         } else if (!strcmp(key, RVK_REFRESH)) {
1124             reload();
1125         } else if (!strcmp(key, RVK_SHELL)) {
1126             program = getenv("SHELL");
1127             if (program) {
1128 #ifdef RV_SHELL
1129                 spawn((char *[]) {RV_SHELL, "-c", program, NULL});
1130 #else
1131                 spawn((char *[]) {program, NULL});
1132 #endif
1133                 reload();
1134             }
1135         } else if (!strcmp(key, RVK_VIEW)) {
1136             if (!rover.nfiles || S_ISDIR(EMODE(ESEL))) continue;
1137             if (open_with_env("PAGER", ENAME(ESEL)))
1138                 cd(0);
1139         } else if (!strcmp(key, RVK_EDIT)) {
1140             if (!rover.nfiles || S_ISDIR(EMODE(ESEL))) continue;
1141             if (open_with_env("EDITOR", ENAME(ESEL)))
1142                 cd(0);
1143         } else if (!strcmp(key, RVK_OPEN)) {
1144             if (!rover.nfiles || S_ISDIR(EMODE(ESEL))) continue;
1145             if (open_with_env("ROVER_OPEN", ENAME(ESEL)))
1146                 cd(0);
1147         } else if (!strcmp(key, RVK_SEARCH)) {
1148             int oldsel, oldscroll, length;
1149             if (!rover.nfiles) continue;
1150             oldsel = ESEL;
1151             oldscroll = SCROLL;
1152             start_line_edit("");
1153             update_input(RVP_SEARCH, RED);
1154             while ((edit_stat = get_line_edit()) == CONTINUE) {
1155                 int sel;
1156                 Color color = RED;
1157                 length = strlen(INPUT);
1158                 if (length) {
1159                     for (sel = 0; sel < rover.nfiles; sel++)
1160                         if (!strncmp(ENAME(sel), INPUT, length))
1161                             break;
1162                     if (sel < rover.nfiles) {
1163                         color = GREEN;
1164                         ESEL = sel;
1165                         if (rover.nfiles > HEIGHT) {
1166                             if (sel < 3)
1167                                 SCROLL = 0;
1168                             else if (sel - 3 > rover.nfiles - HEIGHT)
1169                                 SCROLL = rover.nfiles - HEIGHT;
1170                             else
1171                                 SCROLL = sel - 3;
1172                         }
1173                     }
1174                 } else {
1175                     ESEL = oldsel;
1176                     SCROLL = oldscroll;
1177                 }
1178                 update_view();
1179                 update_input(RVP_SEARCH, color);
1180             }
1181             if (edit_stat == CANCEL) {
1182                 ESEL = oldsel;
1183                 SCROLL = oldscroll;
1184             }
1185             clear_message();
1186             update_view();
1187         } else if (!strcmp(key, RVK_TG_FILES)) {
1188             FLAGS ^= SHOW_FILES;
1189             reload();
1190         } else if (!strcmp(key, RVK_TG_DIRS)) {
1191             FLAGS ^= SHOW_DIRS;
1192             reload();
1193         } else if (!strcmp(key, RVK_TG_HIDDEN)) {
1194             FLAGS ^= SHOW_HIDDEN;
1195             reload();
1196         } else if (!strcmp(key, RVK_NEW_FILE)) {
1197             int ok = 0;
1198             start_line_edit("");
1199             update_input(RVP_NEW_FILE, RED);
1200             while ((edit_stat = get_line_edit()) == CONTINUE) {
1201                 int length = strlen(INPUT);
1202                 ok = length;
1203                 for (i = 0; i < rover.nfiles; i++) {
1204                     if (
1205                         !strncmp(ENAME(i), INPUT, length) &&
1206                         (!strcmp(ENAME(i) + length, "") ||
1207                          !strcmp(ENAME(i) + length, "/"))
1208                     ) {
1209                         ok = 0;
1210                         break;
1211                     }
1212                 }
1213                 update_input(RVP_NEW_FILE, ok ? GREEN : RED);
1214             }
1215             clear_message();
1216             if (edit_stat == CONFIRM) {
1217                 if (ok) {
1218                     if (addfile(INPUT) == 0) {
1219                         cd(1);
1220                         try_to_sel(INPUT);
1221                         update_view();
1222                     } else
1223                         message(RED, "Could not create \"%s\".", INPUT);
1224                 } else
1225                     message(RED, "\"%s\" already exists.", INPUT);
1226             }
1227         } else if (!strcmp(key, RVK_NEW_DIR)) {
1228             int ok = 0;
1229             start_line_edit("");
1230             update_input(RVP_NEW_DIR, RED);
1231             while ((edit_stat = get_line_edit()) == CONTINUE) {
1232                 int length = strlen(INPUT);
1233                 ok = length;
1234                 for (i = 0; i < rover.nfiles; i++) {
1235                     if (
1236                         !strncmp(ENAME(i), INPUT, length) &&
1237                         (!strcmp(ENAME(i) + length, "") ||
1238                          !strcmp(ENAME(i) + length, "/"))
1239                     ) {
1240                         ok = 0;
1241                         break;
1242                     }
1243                 }
1244                 update_input(RVP_NEW_DIR, ok ? GREEN : RED);
1245             }
1246             clear_message();
1247             if (edit_stat == CONFIRM) {
1248                 if (ok) {
1249                     if (adddir(INPUT) == 0) {
1250                         cd(1);
1251                         strcat(INPUT, "/");
1252                         try_to_sel(INPUT);
1253                         update_view();
1254                     } else
1255                         message(RED, "Could not create \"%s/\".", INPUT);
1256                 } else
1257                     message(RED, "\"%s\" already exists.", INPUT);
1258             }
1259         } else if (!strcmp(key, RVK_RENAME)) {
1260             int ok = 0;
1261             char *last;
1262             int isdir;
1263             strcpy(INPUT, ENAME(ESEL));
1264             last = INPUT + strlen(INPUT) - 1;
1265             if ((isdir = *last == '/'))
1266                 *last = '\0';
1267             start_line_edit(INPUT);
1268             update_input(RVP_RENAME, RED);
1269             while ((edit_stat = get_line_edit()) == CONTINUE) {
1270                 int length = strlen(INPUT);
1271                 ok = length;
1272                 for (i = 0; i < rover.nfiles; i++)
1273                     if (
1274                         !strncmp(ENAME(i), INPUT, length) &&
1275                         (!strcmp(ENAME(i) + length, "") ||
1276                          !strcmp(ENAME(i) + length, "/"))
1277                     ) {
1278                         ok = 0;
1279                         break;
1280                     }
1281                 update_input(RVP_RENAME, ok ? GREEN : RED);
1282             }
1283             clear_message();
1284             if (edit_stat == CONFIRM) {
1285                 if (isdir)
1286                     strcat(INPUT, "/");
1287                 if (ok) {
1288                     if (!rename(ENAME(ESEL), INPUT) && MARKED(ESEL)) {
1289                         del_mark(&rover.marks, ENAME(ESEL));
1290                         add_mark(&rover.marks, CWD, INPUT);
1291                     }
1292                     cd(1);
1293                     try_to_sel(INPUT);
1294                     update_view();
1295                 } else
1296                     message(RED, "\"%s\" already exists.", INPUT);
1297             }
1298         } else if (!strcmp(key, RVK_DELETE)) {
1299             if (rover.nfiles) {
1300                 message(YELLOW, "Delete \"%s\"? (Y/n)", ENAME(ESEL));
1301                 if (rover_getch() == 'Y') {
1302                     const char *name = ENAME(ESEL);
1303                     int ret = ISDIR(ENAME(ESEL)) ? deldir(name) : delfile(name);
1304                     reload();
1305                     if (ret)
1306                         message(RED, "Could not delete \"%s\".", ENAME(ESEL));
1307                 } else
1308                     clear_message();
1309             } else
1310                   message(RED, "No entry selected for deletion.");
1311         } else if (!strcmp(key, RVK_TG_MARK)) {
1312             if (MARKED(ESEL))
1313                 del_mark(&rover.marks, ENAME(ESEL));
1314             else
1315                 add_mark(&rover.marks, CWD, ENAME(ESEL));
1316             MARKED(ESEL) = !MARKED(ESEL);
1317             ESEL = (ESEL + 1) % rover.nfiles;
1318             update_view();
1319         } else if (!strcmp(key, RVK_INVMARK)) {
1320             for (i = 0; i < rover.nfiles; i++) {
1321                 if (MARKED(i))
1322                     del_mark(&rover.marks, ENAME(i));
1323                 else
1324                     add_mark(&rover.marks, CWD, ENAME(i));
1325                 MARKED(i) = !MARKED(i);
1326             }
1327             update_view();
1328         } else if (!strcmp(key, RVK_MARKALL)) {
1329             for (i = 0; i < rover.nfiles; i++)
1330                 if (!MARKED(i)) {
1331                     add_mark(&rover.marks, CWD, ENAME(i));
1332                     MARKED(i) = 1;
1333                 }
1334             update_view();
1335         } else if (!strcmp(key, RVK_MARK_DELETE)) {
1336             if (rover.marks.nentries) {
1337                 message(YELLOW, "Delete all marked entries? (Y/n)");
1338                 if (rover_getch() == 'Y')
1339                     process_marked(NULL, delfile, deldir, "Deleting", "Deleted");
1340                 else
1341                     clear_message();
1342             } else
1343                 message(RED, "No entries marked for deletion.");
1344         } else if (!strcmp(key, RVK_MARK_COPY)) {
1345             if (rover.marks.nentries)
1346                 process_marked(adddir, cpyfile, NULL, "Copying", "Copied");
1347             else
1348                 message(RED, "No entries marked for copying.");
1349         } else if (!strcmp(key, RVK_MARK_MOVE)) {
1350             if (rover.marks.nentries)
1351                 process_marked(adddir, movfile, deldir, "Moving", "Moved");
1352             else
1353                 message(RED, "No entries marked for moving.");
1354         }
1355     }
1356     if (rover.nfiles)
1357         free_rows(&rover.rows, rover.nfiles);
1358     delwin(rover.window);
1359     if (save_cwd_file != NULL) {
1360         fputs(CWD, save_cwd_file);
1361         fclose(save_cwd_file);
1362     }
1363     if (save_marks_file != NULL) {
1364         for (i = 0; i < rover.marks.bulk; i++) {
1365             entry = rover.marks.entries[i];
1366             if (entry)
1367                 fprintf(save_marks_file, "%s%s\n", rover.marks.dirpath, entry);
1368         }
1369         fclose(save_marks_file);
1370     }
1371     free_marks(&rover.marks);
1372     return 0;
1373 }