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inherit Filesystem.Base;
static Filesystem.Base parent; // parent filesystem
static string root = ""; // neither leading nor trailing "/"
static string wd; // always one leading and no trailing "/"
void create(void|string directory, // default: cwd
void|string _root, // internal: root
void|int fast, // internal: fast mode (no check)
void|Filesystem.Base _parent)
// internal: parent filesystem
{
if(_root)
{
sscanf(reverse(_root), "%*[\\/]%s", root);
sscanf(reverse(root), "%*[/]%s", root);
}
if(!fast)
{
array(int) a;
if(!directory || directory=="" || directory[0]!='/')
directory = combine_path(getcwd(), directory||"");
if(!(a = file_stat("/"+root+directory)) ||
!((a[0]&0xF000)==0x4000))
error("Not a directory\n");
}
sscanf(reverse(directory), "%*[\\/]%s", wd);
wd = reverse(wd);
if(wd=="")
wd = "/";
}
string _sprintf()
{
return sprintf("Filesystem.System(/* root=%O, wd=%O */)", root, wd);
}
Filesystem.Base cd(string directory)
{
Filesystem.Stat st = stat(directory);
if(!st) return 0;
if(st->isdir()) // stay
return this_class(combine_path(wd, directory),
root, 1, parent);
return st->cd(); // try something else
}
Filesystem.Base cdup()
{
return cd("..");
}
string cwd()
{
return wd;
}
Filesystem.Base chroot(void|string directory)
{
if(directory)
{
Filesystem.Base new = cd(directory);
if(!new) return 0;
return new->chroot();
}
return this_class("/", root+wd, 1, parent);
}
Filesystem.Stat stat(string file, int|void lstat)
{
array(int) a;
string full = combine_path(wd, file);
if((a = file_stat("/"+root+full, lstat)))
{
Filesystem.Stat s = Filesystem.Stat();
s->fullpath = full;
s->name = file;
s->filesystem = this_object();
s->attach_statarray(a);
return s;
}
else
return 0;
}
array(string) get_dir(void|string directory, void|string|array(string) globs)
{
directory = directory ? combine_path(wd, directory) : wd;
array(string) y = predef::get_dir("/"+root+directory);
if(!globs)
return y;
else if(stringp(globs))
return glob(globs, y);
else
{
array(string) p = ({});
foreach(globs, string g)
{
array(string) z;
p += (z = glob(g, y));
y -= z;
}
return p;
}
}
array(Filesystem.Stat) get_stats(void|string directory,
void|string|array(string) globs)
{
Filesystem.Base z = this_object();
if(directory &&
!(z = z->cd(directory)))
return 0;
array(string) a = z->get_dir("", globs);
if(!a) return 0;
return Array.map(a, z->stat, 1)-({0});
}
Stdio.File open(string filename, string mode)
{
filename = combine_path(wd, filename);
Stdio.File f = Stdio.File();
if(!f->open("/"+root+filename, mode))
return 0;
return f;
}
// int access(string filename, string mode)
// {
// return 1; // sure
// }
int rm(string filename)
{
filename = combine_path(wd, filename);
return predef::rm("/"+root+filename);
}
void chmod(string filename, int|string mode)
{
filename = combine_path(wd, filename);
if(stringp(mode))
{
Filesystem.Stat st = stat(filename); // call to self
if(!st) return 0;
mode = Filesystem.parse_mode(st->mode, mode);
}
predef::chmod("/"+root+filename, mode);
}
void chown(string filename, int|object owner, int|object group)
{
#if constant(chown)
if(objectp(group))
error("user objects not supported (yet)\n");
if(objectp(owner))
error("user objects not supported (yet)\n");
filename = combine_path(wd, filename);
predef::chown("/"+root+wd, owner, group);
#else
error("system does not have a chown"); // system does not have a chown()
#endif
}
array find(void|function(Filesystem.Stat:int) mask, mixed ... extra)
{
array res = ({}),
d = get_stats() || ({}),
r = Array.filter(d, "isdir");
if(mask)
res += Array.filter(d-r, mask, @extra);
else
res += d-r;
foreach(r, Filesystem.Base dir)
{
if(!mask)
res += ({ dir });
else if(mask(dir, @extra))
res += ({ dir });
if(dir->name=="." || dir->name=="..")
continue;
res += dir->cd()->find(mask, @extra);
}
return res;
}
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