Nasal-Interpreter/tools/search_file.nas

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import.std.file;
var tips = func() {
println("usage:");
println(" nasal search_file.nas [key]");
}
if (size(arg)<1) {
println("need a key string to search files.");
tips();
exit(-1);
} else if (size(arg)>1) {
println("too many arguments.");
tips();
exit(-1);
}
var needle = arg[0];
var do_flat = func(vec) {
var flat = [];
var bfs = [vec];
while(size(bfs)) {
var d = pop(bfs);
foreach(var f; d.files) {
if (ishash(f)) {
append(bfs,f);
continue;
}
append(flat, d.dir~"/"~f);
}
}
sort(flat, func(a, b){return cmp(a, b)<0});
return flat;
}
var count = 0;
foreach(var f; do_flat(file.recursive_find_files("."))) {
var pos = find(needle, f);
if (pos == -1) {
continue;
}
count += 1;
var begin = substr(f, 0, pos);
var end = pos+size(needle)>=size(f)? "":substr(f, pos+size(needle), size(f));
var file_size = fstat(f).st_size;
var unit = "b";
if (file_size>1024) {
file_size/=1024;
unit = "kb";
}
if (file_size>1024) {
file_size/=1024;
unit = "mb";
}
if (file_size>1024) {
file_size/=1024;
unit = "gb";
}
file_size = int(file_size);
println(begin, "\e[95;1m", needle, "\e[0m", end, " | ", file_size, " ", unit);
}
println("\n", count, " result(s).");