#define _XOPEN_SOURCE_EXTENDED
#define _FILE_OFFSET_BITS 64
#include <stdlib.h>
#include <stdint.h>
#include <ctype.h>
#include <wchar.h>
#include <wctype.h>
#include <string.h>
#include <sys/types.h> /* pid_t, ... */
#include <stdio.h>
#include <limits.h> /* PATH_MAX */
#include <locale.h> /* setlocale(), LC_ALL */
#include <unistd.h> /* chdir(), getcwd(), read(), close(), ... */
#include <dirent.h> /* DIR, struct dirent, opendir(), ... */
#include <sys/stat.h>
#include <fcntl.h> /* open() */
#include <sys/wait.h> /* waitpid() */
#include <signal.h> /* struct sigaction, sigaction() */
#include <errno.h>
#include <curses.h>
#include "config.h"
/* String buffers. */
#define BUFLEN 256
static char BUF1[BUFLEN];
static char BUF2[BUFLEN];
static char INPUT[BUFLEN];
static wchar_t WBUF[BUFLEN];
/* Argument buffers for execvp(). */
#define MAXARGS 256
static char *ARGS[MAXARGS];
/* Listing view parameters. */
#define HEIGHT (LINES-4)
#define STATUSPOS (COLS-16)
/* Listing view flags. */
#define SHOW_FILES 0x01u
#define SHOW_DIRS 0x02u
#define SHOW_HIDDEN 0x04u
/* Marks parameters. */
#define BULK_INIT 5
#define BULK_THRESH 256
/* Information associated to each entry in listing. */
typedef struct Row {
char *name;
off_t size;
mode_t mode;
int islink;
int marked;
} Row;
/* Dynamic array of marked entries. */
typedef struct Marks {
char dirpath[PATH_MAX];
int bulk;
int nentries;
char **entries;
} Marks;
/* Line editing state. */
typedef struct Edit {
wchar_t buffer[BUFLEN+1];
int left, right;
} Edit;
/* Global state. Some basic info is allocated for ten tabs. */
static struct Rover {
int tab;
int nfiles;
int scroll[10];
int esel[10];
uint8_t flags[10];
Row *rows;
WINDOW *window;
char cwd[10][PATH_MAX];
Marks marks;
Edit edit;
int edit_scroll;
volatile sig_atomic_t pending_winch;
} rover;
/* Macros for accessing global state. */
#define ENAME(I) rover.rows[I].name
#define ESIZE(I) rover.rows[I].size
#define EMODE(I) rover.rows[I].mode
#define ISLINK(I) rover.rows[I].islink
#define MARKED(I) rover.rows[I].marked
#define SCROLL rover.scroll[rover.tab]
#define ESEL rover.esel[rover.tab]
#define FLAGS rover.flags[rover.tab]
#define CWD rover.cwd[rover.tab]
/* Helpers. */
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define ISDIR(E) (strchr((E), '/') != NULL)
/* Line Editing Macros. */
#define EDIT_FULL(E) ((E).left == (E).right)
#define EDIT_CAN_LEFT(E) ((E).left)
#define EDIT_CAN_RIGHT(E) ((E).right < BUFLEN-1)
#define EDIT_LEFT(E) (E).buffer[(E).right--] = (E).buffer[--(E).left]
#define EDIT_RIGHT(E) (E).buffer[(E).left++] = (E).buffer[++(E).right]
#define EDIT_INSERT(E, C) (E).buffer[(E).left++] = (C)
#define EDIT_BACKSPACE(E) (E).left--
#define EDIT_DELETE(E) (E).right++
#define EDIT_CLEAR(E) do { (E).left = 0; (E).right = BUFLEN-1; } while(0)
typedef enum EditStat {CONTINUE, CONFIRM, CANCEL} EditStat;
typedef enum Color {DEFAULT, RED, GREEN, YELLOW, BLUE, CYAN, MAGENTA, WHITE, BLACK} Color;
typedef int (*PROCESS)(const char *path);
static void
init_marks(Marks *marks)
{
strcpy(marks->dirpath, "");
marks->bulk = BULK_INIT;
marks->nentries = 0;
marks->entries = calloc(marks->bulk, sizeof *marks->entries);
}
/* Unmark all entries. */
static void
mark_none(Marks *marks)
{
int i;
strcpy(marks->dirpath, "");
for (i = 0; i < marks->bulk && marks->nentries; i++)
if (marks->entries[i]) {
free(marks->entries[i]);
marks->entries[i] = NULL;
marks->nentries--;
}
if (marks->bulk > BULK_THRESH) {
/* Reset bulk to free some memory. */
free(marks->entries);
marks->bulk = BULK_INIT;
marks->entries = calloc(marks->bulk, sizeof *marks->entries);
}
}
static void
add_mark(Marks *marks, char *dirpath, char *entry)
{
int i;
if (!strcmp(marks->dirpath, dirpath)) {
/* Append mark to directory. */
if (marks->nentries == marks->bulk) {
/* Expand bulk to accomodate new entry. */
int extra = marks->bulk / 2;
marks->bulk += extra; /* bulk *= 1.5; */
marks->entries = realloc(marks->entries,
marks->bulk * sizeof *marks->entries);
memset(&marks->entries[marks->nentries], 0,
extra * sizeof *marks->entries);
i = marks->nentries;
} else {
/* Search for empty slot (there must be one). */
for (i = 0; i < marks->bulk; i++)
if (!marks->entries[i])
break;
}
} else {
/* Directory changed. Discard old marks. */
mark_none(marks);
strcpy(marks->dirpath, dirpath);
i = 0;
}
marks->entries[i] = malloc(strlen(entry) + 1);
strcpy(marks->entries[i], entry);
marks->nentries++;
}
static void
del_mark(Marks *marks, char *entry)
{
int i;
if (marks->nentries > 1) {
for (i = 0; i < marks->bulk; i++)
if (marks->entries[i] && !strcmp(marks->entries[i], entry))
break;
free(marks->entries[i]);
marks->entries[i] = NULL;
marks->nentries--;
} else
mark_none(marks);
}
static void
free_marks(Marks *marks)
{
int i;
for (i = 0; i < marks->bulk && marks->nentries; i++)
if (marks->entries[i]) {
free(marks->entries[i]);
marks->nentries--;
}
free(marks->entries);
}
static void
handle_winch(int sig)
{
rover.pending_winch = 1;
}
static void
enable_handlers()
{
struct sigaction sa;
memset(&sa, 0, sizeof (struct sigaction));
sa.sa_handler = handle_winch;
sigaction(SIGWINCH, &sa, NULL);
}
static void
disable_handlers()
{
struct sigaction sa;
memset(&sa, 0, sizeof (struct sigaction));
sa.sa_handler = SIG_DFL;
sigaction(SIGWINCH, &sa, NULL);
}
static void update_view();
/* Handle any signals received since last call. */
static void
sync_signals()
{
if (rover.pending_winch) {
/* SIGWINCH received: resize application accordingly. */
delwin(rover.window);
endwin();
refresh();
clear();
rover.window = subwin(stdscr, LINES - 2, COLS, 1, 0);
if (HEIGHT < rover.nfiles && SCROLL + HEIGHT > rover.nfiles)
SCROLL = ESEL - HEIGHT;
update_view();
rover.pending_winch = 0;
}
}
/* This function must be used in place of getch().
It handles signals while waiting for user input. */
static int
rover_getch()
{
int ch;
while ((ch = getch()) == ERR)
sync_signals();
return ch;
}
/* This function must be used in place of get_wch().
It handles signals while waiting for user input. */
static int
rover_get_wch(wint_t *wch)
{
wint_t ret;
while ((ret = get_wch(wch)) == (wint_t) ERR)
sync_signals();
return ret;
}
/* Do a fork-exec to external program (e.g. $EDITOR). */
static void
spawn()
{
pid_t pid;
int status;
setenv("RVSEL", rover.nfiles ? ENAME(ESEL) : "", 1);
pid = fork();
if (pid > 0) {
/* fork() succeeded. */
disable_handlers();
endwin();
waitpid(pid, &status, 0);
enable_handlers();
kill(getpid(), SIGWINCH);
} else if (pid == 0) {
/* Child process. */
execvp(ARGS[0], ARGS);
}
}
/* Curses setup. */
static void
init_term()
{
setlocale(LC_ALL, "");
initscr();
cbreak(); /* Get one character at a time. */
timeout(100); /* For getch(). */
noecho();
nonl(); /* No NL->CR/NL on output. */
intrflush(stdscr, FALSE);
keypad(stdscr, TRUE);
curs_set(FALSE); /* Hide blinking cursor. */
if (has_colors()) {
short bg;
start_color();
#ifdef NCURSES_EXT_FUNCS
use_default_colors();
bg = -1;
#else
bg = COLOR_BLACK;
#endif
init_pair(RED, COLOR_RED, bg);
init_pair(GREEN, COLOR_GREEN, bg);
init_pair(YELLOW, COLOR_YELLOW, bg);
init_pair(BLUE, COLOR_BLUE, bg);
init_pair(CYAN, COLOR_CYAN, bg);
init_pair(MAGENTA, COLOR_MAGENTA, bg);
init_pair(WHITE, COLOR_WHITE, bg);
init_pair(BLACK, COLOR_BLACK, bg);
}
atexit((void (*)(void)) endwin);
enable_handlers();
}
/* Update the listing view. */
static void
update_view()
{
int i, j;
int numsize;
int ishidden, isdir;
int marking;
mvhline(0, 0, ' ', COLS);
attr_on(A_BOLD, NULL);
color_set(RVC_TABNUM, NULL);
mvaddch(0, COLS - 2, rover.tab + '0');
attr_off(A_BOLD, NULL);
if (rover.marks.nentries) {
numsize = snprintf(BUF1, BUFLEN, "%d", rover.marks.nentries);
color_set(RVC_MARKS, NULL);
mvaddstr(0, COLS - 3 - numsize, BUF1);
} else
numsize = -1;
color_set(RVC_CWD, NULL);
mbstowcs(WBUF, CWD, PATH_MAX);
mvaddnwstr(0, 0, WBUF, COLS - 4 - numsize);
wcolor_set(rover.window, RVC_BORDER, NULL);
wborder(rover.window, 0, 0, 0, 0, 0, 0, 0, 0);
/* Selection might not be visible, due to cursor wrapping or window
shrinking. In that case, the scroll must be moved to make it visible. */
SCROLL = MAX(MIN(SCROLL, ESEL), ESEL - HEIGHT + 1);
marking = !strcmp(CWD, rover.marks.dirpath);
for (i = 0, j = SCROLL; i < HEIGHT && j < rover.nfiles; i++, j++) {
ishidden = ENAME(j)[0] == '.';
isdir = S_ISDIR(EMODE(j));
if (j == ESEL)
wattr_on(rover.window, A_REVERSE, NULL);
if (ISLINK(j))
wcolor_set(rover.window, RVC_LINK, NULL);
else if (ishidden)
wcolor_set(rover.window, RVC_HIDDEN, NULL);
else if (isdir)
wcolor_set(rover.window, RVC_DIR, NULL);
else
wcolor_set(rover.window, RVC_FILE, NULL);
if (!isdir) {
char *suffix, *suffixes = "BKMGTPEZY";
off_t human_size = ESIZE(j) * 10;
int length = mbstowcs(NULL, ENAME(j), 0);
for (suffix = suffixes; human_size >= 10240; suffix++)
human_size = (human_size + 512) / 1024;
if (*suffix == 'B')
swprintf(WBUF, PATH_MAX, L"%s%*d %c", ENAME(j),
(int) (COLS - length - 6),
(int) human_size / 10, *suffix);
else
swprintf(WBUF, PATH_MAX, L"%s%*d.%d %c", ENAME(j),
(int) (COLS - length - 8),
(int) human_size / 10, (int) human_size % 10, *suffix);
} else
mbstowcs(WBUF, ENAME(j), PATH_MAX);
mvwhline(rover.window, i + 1, 1, ' ', COLS - 2);
mvwaddnwstr(rover.window, i + 1, 2, WBUF, COLS - 4);
if (marking && MARKED(j)) {
wcolor_set(rover.window, RVC_MARKS, NULL);
mvwaddch(rover.window, i + 1, 1, RVS_MARK);
} else
mvwaddch(rover.window, i + 1, 1, ' ');
if (j == ESEL)
wattr_off(rover.window, A_REVERSE, NULL);
}
for (; i < HEIGHT; i++)
mvwhline(rover.window, i + 1, 1, ' ', COLS - 2);
if (rover.nfiles > HEIGHT) {
int center, height;
center = (SCROLL + HEIGHT / 2) * HEIGHT / rover.nfiles;
height = (HEIGHT-1) * HEIGHT / rover.nfiles;
if (!height) height = 1;
wcolor_set(rover.window, RVC_SCROLLBAR, NULL);
mvwvline(rover.window, center-height/2+1, COLS-1, RVS_SCROLLBAR, height);
}
BUF1[0] = FLAGS & SHOW_FILES ? 'F' : ' ';
BUF1[1] = FLAGS & SHOW_DIRS ? 'D' : ' ';
BUF1[2] = FLAGS & SHOW_HIDDEN ? 'H' : ' ';
if (!rover.nfiles)
strcpy(BUF2, "0/0");
else
snprintf(BUF2, BUFLEN, "%d/%d", ESEL + 1, rover.nfiles);
snprintf(BUF1+3, BUFLEN-3, "%12s", BUF2);
color_set(RVC_STATUS, NULL);
mvaddstr(LINES - 1, STATUSPOS, BUF1);
wrefresh(rover.window);
}
/* Show a message on the status bar. */
static void
message(const char *msg, Color color)
{
int len, pos;
len = strlen(msg);
pos = (STATUSPOS - len) / 2;
attr_on(A_BOLD, NULL);
color_set(color, NULL);
mvaddstr(LINES - 1, pos, msg);
color_set(DEFAULT, NULL);
attr_off(A_BOLD, NULL);
}
/* Clear message area, leaving only status info. */
static void
clear_message()
{
mvhline(LINES - 1, 0, ' ', STATUSPOS);
}
/* Comparison used to sort listing entries. */
static int
rowcmp(const void *a, const void *b)
{
int isdir1, isdir2, cmpdir;
const Row *r1 = a;
const Row *r2 = b;
isdir1 = S_ISDIR(r1->mode);
isdir2 = S_ISDIR(r2->mode);
cmpdir = isdir2 - isdir1;
return cmpdir ? cmpdir : strcoll(r1->name, r2->name);
}
/* Get all entries in current working directory. */
static int
ls(Row **rowsp, uint8_t flags)
{
DIR *dp;
struct dirent *ep;
struct stat statbuf;
Row *rows;
int i, n;
if(!(dp = opendir("."))) return -1;
n = -2; /* We don't want the entries "." and "..". */
while (readdir(dp)) n++;
rewinddir(dp);
rows = malloc(n * sizeof *rows);
i = 0;
while ((ep = readdir(dp))) {
if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
continue;
if (!(flags & SHOW_HIDDEN) && ep->d_name[0] == '.')
continue;
lstat(ep->d_name, &statbuf);
rows[i].islink = S_ISLNK(statbuf.st_mode);
stat(ep->d_name, &statbuf);
if (S_ISDIR(statbuf.st_mode)) {
if (flags & SHOW_DIRS) {
rows[i].name = malloc(strlen(ep->d_name) + 2);
strcpy(rows[i].name, ep->d_name);
strcat(rows[i].name, "/");
rows[i].mode = statbuf.st_mode;
i++;
}
} else if (flags & SHOW_FILES) {
rows[i].name = malloc(strlen(ep->d_name) + 1);
strcpy(rows[i].name, ep->d_name);
rows[i].size = statbuf.st_size;
rows[i].mode = statbuf.st_mode;
i++;
}
}
n = i; /* Ignore unused space in array caused by filters. */
qsort(rows, n, sizeof (*rows), rowcmp);
closedir(dp);
*rowsp = rows;
return n;
}
static void
free_rows(Row **rowsp, int nfiles)
{
int i;
for (i = 0; i < nfiles; i++)
free((*rowsp)[i].name);
free(*rowsp);
*rowsp = NULL;
}
/* Change working directory to the path in CWD. */
static void
cd(int reset)
{
int i, j;
message("Loading...", CYAN);
refresh();
if (reset) ESEL = SCROLL = 0;
chdir(CWD);
if (rover.nfiles)
free_rows(&rover.rows, rover.nfiles);
rover.nfiles = ls(&rover.rows, FLAGS);
if (!strcmp(CWD, rover.marks.dirpath)) {
for (i = 0; i < rover.nfiles; i++) {
for (j = 0; j < rover.marks.bulk; j++)
if (
rover.marks.entries[j] &&
!strcmp(rover.marks.entries[j], ENAME(i))
)
break;
MARKED(i) = j < rover.marks.bulk;
}
} else
for (i = 0; i < rover.nfiles; i++)
MARKED(i) = 0;
clear_message();
update_view();
}
/* Select a target entry, if it is present. */
static void
try_to_sel(const char *target)
{
ESEL = 0;
if (!ISDIR(target))
while ((ESEL+1) < rover.nfiles && S_ISDIR(EMODE(ESEL)))
ESEL++;
while ((ESEL+1) < rover.nfiles && strcoll(ENAME(ESEL), target) < 0)
ESEL++;
if (rover.nfiles > HEIGHT) {
SCROLL = ESEL - HEIGHT / 2;
SCROLL = MIN(MAX(SCROLL, 0), rover.nfiles - HEIGHT);
}
}
/* Reload CWD, but try to keep selection. */
static void
reload()
{
if (rover.nfiles) {
strcpy(INPUT, ENAME(ESEL));
cd(1);
try_to_sel(INPUT);
update_view();
} else
cd(1);
}
/* Recursively process a source directory using CWD as destination root.
For each node (i.e. directory), do the following:
1. call pre(destination);
2. call proc() on every child leaf (i.e. files);
3. recurse into every child node;
4. call pos(source).
E.g. to move directory /src/ (and all its contents) inside /dst/:
strcpy(CWD, "/dst/");
process_dir(adddir, movfile, deldir, "/src/"); */
static int
process_dir(PROCESS pre, PROCESS proc, PROCESS pos, const char *path)
{
int ret;
DIR *dp;
struct dirent *ep;
struct stat statbuf;
char subpath[PATH_MAX];
ret = 0;
if (pre) {
char dstpath[PATH_MAX];
strcpy(dstpath, CWD);
strcat(dstpath, path + strlen(rover.marks.dirpath));
ret |= pre(dstpath);
}
if(!(dp = opendir(path))) return -1;
while ((ep = readdir(dp))) {
if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
continue;
snprintf(subpath, PATH_MAX, "%s%s", path, ep->d_name);
stat(subpath, &statbuf);
if (S_ISDIR(statbuf.st_mode)) {
strcat(subpath, "/");
ret |= process_dir(pre, proc, pos, subpath);
} else
ret |= proc(subpath);
}
closedir(dp);
if (pos) ret |= pos(path);
return ret;
}
/* Process all marked entries using CWD as destination root.
All marked entries that are directories will be recursively processed.
See process_dir() for details on the parameters. */
static void
process_marked(PROCESS pre, PROCESS proc, PROCESS pos)
{
int i, ret;
char path[PATH_MAX];
clear_message();
message("Processing...", CYAN);
refresh();
for (i = 0; i < rover.marks.bulk; i++)
if (rover.marks.entries[i]) {
ret = 0;
snprintf(path, PATH_MAX, "%s%s", rover.marks.dirpath, rover.marks.entries[i]);
if (ISDIR(rover.marks.entries[i])) {
if (!strncmp(path, CWD, strlen(path)))
ret = -1;
else
ret = process_dir(pre, proc, pos, path);
} else
ret = proc(path);
if (!ret) del_mark(&rover.marks, rover.marks.entries[i]);
}
reload();
if (!rover.marks.nentries)
message("Done.", GREEN);
else
message("Some errors occured.", RED);
}
/* Wrappers for file operations. */
static PROCESS delfile = unlink;
static PROCESS deldir = rmdir;
static int addfile(const char *path) {
/* Using creat(2) because mknod(2) doesn't seem to be portable. */
int ret;
ret = creat(path, 0644);
if (ret < 0) return ret;
return close(ret);
}
static int cpyfile(const char *srcpath) {
int src, dst, ret;
size_t size;
struct stat st;
char buf[BUFSIZ];
char dstpath[PATH_MAX];
ret = src = open(srcpath, O_RDONLY);
if (ret < 0) return ret;
ret = fstat(src, &st);
if (ret < 0) return ret;
strcpy(dstpath, CWD);
strcat(dstpath, srcpath + strlen(rover.marks.dirpath));
ret = dst = creat(dstpath, st.st_mode);
if (ret < 0) return ret;
while ((size = read(src, buf, BUFSIZ)) > 0) {
write(dst, buf, size);
sync_signals();
}
close(src);
close(dst);
return 0;
}
static int adddir(const char *path) {
int ret;
struct stat st;
ret = stat(CWD, &st);
if (ret < 0) return ret;
return mkdir(path, st.st_mode);
}
static int movfile(const char *srcpath) {
int ret;
char dstpath[PATH_MAX];
strcpy(dstpath, CWD);
strcat(dstpath, srcpath + strlen(rover.marks.dirpath));
ret = rename(srcpath, dstpath);
if (ret < 0 && errno == EXDEV) {
ret = cpyfile(srcpath);
if (ret < 0) return ret;
ret = delfile(srcpath);
}
return ret;
}
static void
start_line_edit(const char *init_input)
{
curs_set(TRUE);
strncpy(INPUT, init_input, BUFLEN);
rover.edit.left = mbstowcs(rover.edit.buffer, init_input, BUFLEN);
rover.edit.right = BUFLEN - 1;
rover.edit.buffer[BUFLEN] = L'\0';
rover.edit_scroll = 0;
}
/* Read input and change editing state accordingly. */
static EditStat
get_line_edit()
{
wchar_t eraser, killer, wch;
int ret, length;
ret = rover_get_wch((wint_t *) &wch);
erasewchar(&eraser);
killwchar(&killer);
if (ret == KEY_CODE_YES) {
if (wch == KEY_ENTER) {
curs_set(FALSE);
return CONFIRM;
} else if (wch == KEY_LEFT) {
if (EDIT_CAN_LEFT(rover.edit)) EDIT_LEFT(rover.edit);
} else if (wch == KEY_RIGHT) {
if (EDIT_CAN_RIGHT(rover.edit)) EDIT_RIGHT(rover.edit);
} else if (wch == KEY_UP) {
while (EDIT_CAN_LEFT(rover.edit)) EDIT_LEFT(rover.edit);
} else if (wch == KEY_DOWN) {
while (EDIT_CAN_RIGHT(rover.edit)) EDIT_RIGHT(rover.edit);
} else if (wch == KEY_BACKSPACE) {
if (EDIT_CAN_LEFT(rover.edit)) EDIT_BACKSPACE(rover.edit);
} else if (wch == KEY_DC) {
if (EDIT_CAN_RIGHT(rover.edit)) EDIT_DELETE(rover.edit);
}
} else {
if (wch == L'\r' || wch == L'\n') {
curs_set(FALSE);
return CONFIRM;
} else if (wch == L'\t') {
curs_set(FALSE);
return CANCEL;
} else if (wch == eraser) {
if (EDIT_CAN_LEFT(rover.edit)) EDIT_BACKSPACE(rover.edit);
} else if (wch == killer) {
EDIT_CLEAR(rover.edit);
clear_message();
} else if (iswprint(wch)) {
if (!EDIT_FULL(rover.edit)) EDIT_INSERT(rover.edit, wch);
}
}
/* Encode edit contents in INPUT. */
rover.edit.buffer[rover.edit.left] = L'\0';
length = wcstombs(INPUT, rover.edit.buffer, BUFLEN);
wcstombs(&INPUT[length], &rover.edit.buffer[rover.edit.right+1],
BUFLEN-length);
return CONTINUE;
}
/* Update line input on the screen. */
static void
update_input(char *prompt, Color color)
{
int plen, ilen, maxlen;
plen = strlen(prompt);
ilen = mbstowcs(NULL, INPUT, 0);
maxlen = STATUSPOS - plen - 2;
if (ilen - rover.edit_scroll < maxlen)
rover.edit_scroll = MAX(ilen - maxlen, 0);
else if (rover.edit.left > rover.edit_scroll + maxlen - 1)
rover.edit_scroll = rover.edit.left - maxlen;
else if (rover.edit.left < rover.edit_scroll)
rover.edit_scroll = MAX(rover.edit.left - maxlen, 0);
color_set(RVC_PROMPT, NULL);
mvaddstr(LINES - 1, 0, prompt);
color_set(color, NULL);
mbstowcs(WBUF, INPUT, COLS);
mvaddnwstr(LINES - 1, plen, &WBUF[rover.edit_scroll], maxlen);
mvaddch(LINES - 1, plen + MIN(ilen - rover.edit_scroll, maxlen + 1), ' ');
color_set(DEFAULT, NULL);
if (rover.edit_scroll)
mvaddch(LINES - 1, plen - 1, '<');
if (ilen > rover.edit_scroll + maxlen)
mvaddch(LINES - 1, plen + maxlen, '>');
move(LINES - 1, plen + rover.edit.left - rover.edit_scroll);
}
int
main(int argc, char *argv[])
{
int i, ch;
char *program;
const char *key;
DIR *d;
EditStat edit_stat;
const char *save_cwd_file = NULL;
if (argc >= 2) {
if (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version")) {
printf("rover %s\n", RV_VERSION);
return 0;
} else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
printf(
"Usage: rover [DIRECTORY [DIRECTORY [DIRECTORY [...]]]]\n"
" or: rover [OPTION]\n"
"Browse current working directory or the ones specified.\n\n"
"Options:\n"
" -h, --help print this help message and exit\n"
" -v, --version print program version and exit\n\n"
"See rover(1) for more information.\n\n"
"Rover homepage: <https://github.com/lecram/rover>.\n"
);
return 0;
} else if (argc > 2 && !strcmp(argv[1], "--save-cwd")) {
save_cwd_file = argv[2];
argc -= 2; argv += 2;
}
}
init_term();
rover.nfiles = 0;
for (i = 0; i < 10; i++) {
rover.esel[i] = rover.scroll[i] = 0;
rover.flags[i] = SHOW_FILES | SHOW_DIRS;
}
strcpy(rover.cwd[0], getenv("HOME"));
for (i = 1; i < argc && i < 10; i++) {
if ((d = opendir(argv[i]))) {
realpath(argv[i], rover.cwd[i]);
closedir(d);
} else
strcpy(rover.cwd[i], rover.cwd[0]);
}
getcwd(rover.cwd[i], PATH_MAX);
for (i++; i < 10; i++)
strcpy(rover.cwd[i], rover.cwd[i-1]);
for (i = 0; i < 10; i++)
if (rover.cwd[i][strlen(rover.cwd[i]) - 1] != '/')
strcat(rover.cwd[i], "/");
rover.tab = 1;
rover.window = subwin(stdscr, LINES - 2, COLS, 1, 0);
init_marks(&rover.marks);
cd(1);
while (1) {
ch = rover_getch();
key = keyname(ch);
clear_message();
if (!strcmp(key, RVK_QUIT)) break;
else if (ch >= '0' && ch <= '9') {
rover.tab = ch - '0';
cd(0);
} else if (!strcmp(key, RVK_HELP)) {
ARGS[0] = "man";
ARGS[1] = "rover";
ARGS[2] = NULL;
spawn();
} else if (!strcmp(key, RVK_DOWN)) {
if (!rover.nfiles) continue;
ESEL = MIN(ESEL + 1, rover.nfiles - 1);
update_view();
} else if (!strcmp(key, RVK_UP)) {
if (!rover.nfiles) continue;
ESEL = MAX(ESEL - 1, 0);
update_view();
} else if (!strcmp(key, RVK_JUMP_DOWN)) {
if (!rover.nfiles) continue;
ESEL = MIN(ESEL + RV_JUMP, rover.nfiles - 1);
if (rover.nfiles > HEIGHT)
SCROLL = MIN(SCROLL + RV_JUMP, rover.nfiles - HEIGHT);
update_view();
} else if (!strcmp(key, RVK_JUMP_UP)) {
if (!rover.nfiles) continue;
ESEL = MAX(ESEL - RV_JUMP, 0);
SCROLL = MAX(SCROLL - RV_JUMP, 0);
update_view();
} else if (!strcmp(key, RVK_JUMP_TOP)) {
if (!rover.nfiles) continue;
ESEL = 0;
update_view();
} else if (!strcmp(key, RVK_JUMP_BOTTOM)) {
if (!rover.nfiles) continue;
ESEL = rover.nfiles - 1;
update_view();
} else if (!strcmp(key, RVK_CD_DOWN)) {
if (!rover.nfiles || !S_ISDIR(EMODE(ESEL))) continue;
strcat(CWD, ENAME(ESEL));
cd(1);
} else if (!strcmp(key, RVK_CD_UP)) {
char *dirname, first;
if (!strcmp(CWD, "/")) continue;
CWD[strlen(CWD) - 1] = '\0';
dirname = strrchr(CWD, '/') + 1;
first = dirname[0];
dirname[0] = '\0';
cd(1);
dirname[0] = first;
dirname[strlen(dirname)] = '/';
try_to_sel(dirname);
dirname[0] = '\0';
update_view();
} else if (!strcmp(key, RVK_HOME)) {
strcpy(CWD, getenv("HOME"));
if (CWD[strlen(CWD) - 1] != '/')
strcat(CWD, "/");
cd(1);
} else if (!strcmp(key, RVK_REFRESH)) {
reload();
} else if (!strcmp(key, RVK_SHELL)) {
program = getenv("SHELL");
if (program) {
ARGS[0] = program;
ARGS[1] = NULL;
spawn();
reload();
}
} else if (!strcmp(key, RVK_VIEW)) {
if (!rover.nfiles || S_ISDIR(EMODE(ESEL))) continue;
program = getenv("PAGER");
if (program) {
ARGS[0] = program;
ARGS[1] = ENAME(ESEL);
ARGS[2] = NULL;
spawn();
}
} else if (!strcmp(key, RVK_EDIT)) {
if (!rover.nfiles || S_ISDIR(EMODE(ESEL))) continue;
program = getenv("EDITOR");
if (program) {
ARGS[0] = program;
ARGS[1] = ENAME(ESEL);
ARGS[2] = NULL;
spawn();
cd(0);
}
} else if (!strcmp(key, RVK_SEARCH)) {
int oldsel, oldscroll, length;
char *prompt = "search: ";
if (!rover.nfiles) continue;
oldsel = ESEL;
oldscroll = SCROLL;
start_line_edit("");
update_input(prompt, RED);
while ((edit_stat = get_line_edit()) == CONTINUE) {
int sel;
Color color = RED;
length = strlen(INPUT);
if (length) {
for (sel = 0; sel < rover.nfiles; sel++)
if (!strncmp(ENAME(sel), INPUT, length))
break;
if (sel < rover.nfiles) {
color = GREEN;
ESEL = sel;
if (rover.nfiles > HEIGHT) {
if (sel < 3)
SCROLL = 0;
else if (sel - 3 > rover.nfiles - HEIGHT)
SCROLL = rover.nfiles - HEIGHT;
else
SCROLL = sel - 3;
}
}
} else {
ESEL = oldsel;
SCROLL = oldscroll;
}
update_view();
update_input(prompt, color);
}
if (edit_stat == CANCEL) {
ESEL = oldsel;
SCROLL = oldscroll;
}
clear_message();
update_view();
} else if (!strcmp(key, RVK_TG_FILES)) {
FLAGS ^= SHOW_FILES;
reload();
} else if (!strcmp(key, RVK_TG_DIRS)) {
FLAGS ^= SHOW_DIRS;
reload();
} else if (!strcmp(key, RVK_TG_HIDDEN)) {
FLAGS ^= SHOW_HIDDEN;
reload();
} else if (!strcmp(key, RVK_NEW_FILE)) {
int ok = 0;
char *prompt = "new file: ";
start_line_edit("");
update_input(prompt, RED);
while ((edit_stat = get_line_edit()) == CONTINUE) {
int length = strlen(INPUT);
ok = length;
for (i = 0; i < rover.nfiles; i++) {
if (
!strncmp(ENAME(i), INPUT, length) &&
(!strcmp(ENAME(i) + length, "") ||
!strcmp(ENAME(i) + length, "/"))
) {
ok = 0;
break;
}
}
update_input(prompt, ok ? GREEN : RED);
}
clear_message();
if (edit_stat == CONFIRM) {
if (ok) {
addfile(INPUT);
cd(1);
try_to_sel(INPUT);
update_view();
} else
message("File already exists.", RED);
}
} else if (!strcmp(key, RVK_NEW_DIR)) {
int ok = 0;
char *prompt = "new directory: ";
start_line_edit("");
update_input(prompt, RED);
while ((edit_stat = get_line_edit()) == CONTINUE) {
int length = strlen(INPUT);
ok = length;
for (i = 0; i < rover.nfiles; i++) {
if (
!strncmp(ENAME(i), INPUT, length) &&
(!strcmp(ENAME(i) + length, "") ||
!strcmp(ENAME(i) + length, "/"))
) {
ok = 0;
break;
}
}
update_input(prompt, ok ? GREEN : RED);
}
clear_message();
if (edit_stat == CONFIRM) {
if (ok) {
adddir(INPUT);
cd(1);
try_to_sel(INPUT);
update_view();
} else
message("File already exists.", RED);
}
} else if (!strcmp(key, RVK_RENAME)) {
int ok = 0;
char *prompt = "rename: ";
char *last;
int isdir;
strcpy(INPUT, ENAME(ESEL));
last = INPUT + strlen(INPUT) - 1;
if ((isdir = *last == '/'))
*last = '\0';
start_line_edit(INPUT);
update_input(prompt, RED);
while ((edit_stat = get_line_edit()) == CONTINUE) {
int length = strlen(INPUT);
ok = length;
for (i = 0; i < rover.nfiles; i++)
if (
!strncmp(ENAME(i), INPUT, length) &&
(!strcmp(ENAME(i) + length, "") ||
!strcmp(ENAME(i) + length, "/"))
) {
ok = 0;
break;
}
update_input(prompt, ok ? GREEN : RED);
}
clear_message();
if (edit_stat == CONFIRM) {
if (isdir)
strcat(INPUT, "/");
if (ok) {
if (!rename(ENAME(ESEL), INPUT) && MARKED(ESEL)) {
del_mark(&rover.marks, ENAME(ESEL));
add_mark(&rover.marks, CWD, INPUT);
}
cd(1);
try_to_sel(INPUT);
update_view();
} else
message("File already exists.", RED);
}
} else if (!strcmp(key, RVK_DELETE)) {
if (rover.nfiles) {
message("Delete selected entry? (Y to confirm)", YELLOW);
if (rover_getch() == 'Y') {
const char *name = ENAME(ESEL);
int ret = S_ISDIR(EMODE(ESEL)) ? deldir(name) : delfile(name);
reload();
if (ret)
message("Could not delete entry.", RED);
} else
clear_message();
} else
message("No entry selected for deletion.", RED);
} else if (!strcmp(key, RVK_TG_MARK)) {
if (MARKED(ESEL))
del_mark(&rover.marks, ENAME(ESEL));
else
add_mark(&rover.marks, CWD, ENAME(ESEL));
MARKED(ESEL) = !MARKED(ESEL);
ESEL = (ESEL + 1) % rover.nfiles;
update_view();
} else if (!strcmp(key, RVK_INVMARK)) {
for (i = 0; i < rover.nfiles; i++) {
if (MARKED(i))
del_mark(&rover.marks, ENAME(i));
else
add_mark(&rover.marks, CWD, ENAME(i));
MARKED(i) = !MARKED(i);
}
update_view();
} else if (!strcmp(key, RVK_MARKALL)) {
for (i = 0; i < rover.nfiles; i++)
if (!MARKED(i)) {
add_mark(&rover.marks, CWD, ENAME(i));
MARKED(i) = 1;
}
update_view();
} else if (!strcmp(key, RVK_MARK_DELETE)) {
if (rover.marks.nentries) {
message("Delete marked entries? (Y to confirm)", YELLOW);
if (rover_getch() == 'Y')
process_marked(NULL, delfile, deldir);
else
clear_message();
} else
message("No entries marked for deletion.", RED);
} else if (!strcmp(key, RVK_MARK_COPY)) {
if (rover.marks.nentries)
process_marked(adddir, cpyfile, NULL);
else
message("No entries marked for copying.", RED);
} else if (!strcmp(key, RVK_MARK_MOVE)) {
if (rover.marks.nentries)
process_marked(adddir, movfile, deldir);
else
message("No entries marked for moving.", RED);
}
}
if (rover.nfiles)
free_rows(&rover.rows, rover.nfiles);
free_marks(&rover.marks);
delwin(rover.window);
if (save_cwd_file != NULL) {
FILE *fd = fopen(save_cwd_file, "w");
fputs(CWD, fd);
fclose(fd);
}
return 0;
}