/* /cmd * from Foundation II
* a faster, newer ls command
* created by Descartes of Borg 940724
*/
#include <lib.h>
inherit LIB_DAEMON;
static private mapping file_mapping(string *files);
static private string display_ls(mixed targ, int aflag, int lflag, int tflag,
int nflag, int bflag, int sflag);
static private string long_list(string dir, mixed *files);
static private string short_list(string dir, mixed *files, int n, int s);
int cmd(string str) {
string *args, *paths, *options, *files, *tmp, *dirs;
string show;
int moref, brief, size;
int all_files, long_details, time_sort, no_load_info, i, x, maxi;
if(str == "" || !str) str = (string)previous_object()->query_cwd();
if(!str) return notify_fail("No current working directory.\n");
i = sizeof(args = explode(str, " "));
if(args[0][0] == '-') {
if((x = strlen(args[0])) > 1) options = explode(args[0][1..x-1], "");
else options = ({});
if(i == 1) paths = ({ (string)previous_object()->query_cwd() });
else paths = args[1..i-1];
}
else {
options = ({});
paths = args;
}
i = sizeof(options);
while(i--) {
switch(options[i]) {
case "a": all_files = 1; break;
case "l": long_details = 1; break;
case "t": time_sort = 1; break;
case "m": moref = 1; break;
case "n": no_load_info = 1; break;
case "b": brief = 1; break;
case "s": size = 1; break;
}
}
for(i=0, maxi = sizeof(paths), files = ({}); i<maxi; i++)
if(tmp = (string *)wild_card(paths[i])) files += tmp;
if(!sizeof(files)) {
message("error", "No such file or directory.", this_player());
return 1;
}
dirs = filter(files, "is_dir", this_object());
if(sizeof(files = files - dirs))
show = display_ls(file_mapping(files),all_files,long_details, time_sort,
no_load_info, brief, size);
else show = "";
if(!(maxi = sizeof(dirs))) {
if(moref) previous_object()->more(explode(show, "\n"), "system");
else message("system", show, previous_object());
return 1;
}
for(i=0; i<maxi; i++){
show += display_ls(dirs[i], all_files, long_details, time_sort,
no_load_info, brief, size);
}
if(!moref && check_string_length(show)) previous_object()->eventPrint(show);
else print_long_string(this_player(),show);
return 1;
}
static int is_dir(string str) { return (file_size(str) == -2); }
static private mapping file_mapping(string *files) {
mapping borg;
string *tmp;
string dir;
int i, maxi, x;
for(i=0, maxi = sizeof(files), borg = ([]); i<maxi; i++) {
x = sizeof(tmp = explode(files[i], "/"));
if(x == 1) dir = "/";
else dir = "/"+implode(tmp[0..x-2], "/")+"/";
if(borg[dir]) borg[dir] += get_dir(dir+tmp[x-1], -1);
else borg[dir] = get_dir(dir+tmp[x-1], -1);
}
return borg;
}
static private string display_ls(mixed targ, int aflag, int lflag, int tflag,
int nflag, int bflag, int sflag) {
string *cles;
string ret = "";
int i, maxi;
if(stringp(targ) && targ == "/") targ = ([ "/" : get_dir("/", -1) ]);
else if(stringp(targ)){
targ = "/"+implode(explode(targ,"/"),"/");
targ = ([ targ : get_dir(targ+"/", -1) ]);
}
for(i=0, maxi = sizeof(cles = keys(targ)); i<maxi; i++) {
if(!bflag) ret = cles[i]+":\n";
if(!aflag) targ[cles[i]] = filter(targ[cles[i]], "filter_dots",
this_object());
if(tflag)
targ[cles[i]]=sort_array(targ[cles[i]],"time_sort",this_object());
if(lflag) ret += long_list(cles[i], targ[cles[i]]);
else ret += short_list(cles[i], targ[cles[i]], nflag, sflag);
ret += "\n";
}
return ret;
}
static int filter_dots(mixed *file) { return (file[0][0] != '.'); }
static int time_sort(mixed *alpha, mixed *beta) {
if(alpha[2] < beta[2]) return 1;
else if(alpha[2] > beta[2]) return -1;
else return 0;
}
static private string long_list(string dir, mixed *files) {
string ret, acc, loaded;
int i, maxi;
if(!(maxi = sizeof(files))) return "";
else ret = "";
if((int)master()->valid_read(dir, previous_object())) acc = "r";
else acc = "-";
if((int)master()->valid_write(dir, previous_object())) acc += "w";
else acc += "-";
if(member_array(dir[0..strlen(dir)-2],
(string *)previous_object()->GetSearchPath()) != -1) acc += "x";
else acc += "-";
for(i=0, maxi=sizeof(files); i<maxi; i++) {
if(files[i][1] == -2) loaded = "";
else loaded = (find_object(dir+files[i][0]) ? "*" : "");
ret += sprintf("%:-3s%:-5s%:-30s %d\t%s",
loaded, acc, ctime(files[i][2]),
files[i][1], files[i][0]);
if(files[i][1] == -2) ret += "/\n";
else ret += "\n";
}
return ret;
}
static private string short_list(string dir, mixed *files, int n, int s) {
string *newfiles;
string ret, tmp;
int i, j, max, x, long, ind, cols, rows;
i = sizeof(newfiles=map_array(files,"map_files",this_object(),({dir,n,s})));
while(i--) if((x=strlen(newfiles[i])) > long) long = x;
tmp = (string)previous_object()->GetEnvVar("SCREEN");
if(!tmp || !sscanf(tmp, "%d", x) || !x) x = 80;
x = x-2;
if(long > x/3-3) long = x/3-3;
cols = x/(long+3);
rows = (max = sizeof(newfiles))/cols;
if(max % cols) rows++;
ret = "";
for(i=0; i<rows; i++) {
for(j=0; j<cols; j++) {
ind = (rows * j) + i;
if(ind < max) ret += sprintf("%:-"+(long+3)+"s", newfiles[ind]);
else ret += sprintf("%:-"+(long+3)+"s", "");
}
ret += "\n";
}
return ret;
}
static string map_files(mixed *file, int *flags) {
string tmp;
if(flags[1] && flags[2]) {
if(file[1] == -2) return file[0]+"/";
else return file[0];
}
if(!flags[1]) {
if(find_object((string)flags[0]+file[0]) && file[1] != -2) tmp = "*";
else tmp = " ";
}
else tmp = "";
if(!flags[2]) {
if(file[1] == -2) tmp = tmp + " ";
else if(!file[1]) tmp = tmp + "0 ";
else if(file[1] < 1024) tmp = " 1 ";
else tmp = sprintf("%s%:-3d ", tmp, (file[1]/1024));
}
return tmp + file[0] + ((file[1] == -2) ? "/" : "");
}
void help() {
message("help", "Syntax: <ls [-ablmnst] (directories|files)>\n\n"
"If you pass a single directory as an argument, it will list all "
"files and directories in that directory. If you list a single "
"file, then information about that file will be displayed. If you "
"use special characters like wild cards, then relevant information "
"regarding those files and/or directories will be displayed. The "
"options have the following meanings:\n"
" -a List all files, including files beginning with a '.'\n"
" -b Brief listing, leaving out the directory name\n"
" -l Long listing of all details about a file\n"
" -m Page the output through more\n"
" -n No display of loaded object information\n"
" -s No display of size information\n"
" -t Sort directory listings by time last modified\n\n"
"The -l option overrides the -n and -s options. The columns "
"in the -l listing break down in the following manner:\n"
" * if loaded, blank space if not loaded\n"
" Access permissions, in the form of rwx\n"
" Time last modified\n"
" Size of the file\n"
" File name\n\nSee also: cd, mkdir, mv, pwd, rm, rmdir",
this_player());
}
