Nasal-Interpreter/test/watchdog.nas

113 lines
2.4 KiB
Plaintext

use std.runtime;
use std.os;
use std.io;
use std.unix;
use std.subprocess;
runtime.windows.set_utf8_output();
var os_time = func() {
return "\e[33;1m[" ~ os.time() ~ "]\e[0m ";
}
var err_hd = func() {
return "\e[91;1m[error]\e[0m ";
}
var info_hd = func() {
return "\e[96;1m[info]\e[0m ";
}
var modified_hd = func() {
return "\e[92;1m[modified]\e[0m ";
}
var usage = func() {
println(
os_time(),
info_hd(),
"\e[1musage: nasal watchdog.nas <filename> [\"argv\"]\e[0m"
);
}
var argv = runtime.argv();
if (size(argv)<1) {
println(
os_time(),
err_hd(),
"\e[1mneed correct file path to watch\e[0m"
);
usage();
exit(-1);
}
var filename = argv[0];
if (!io.exists(filename)) {
println(
os_time(),
err_hd(),
"\e[1mfile <",
filename,
"> does not exist\e[0m"
);
usage();
exit(-1);
}
var args = [];
if (size(argv)==2) {
println(
os_time(),
info_hd(),
"\e[1mwith argument(s) ",
argv[1],
"\e[0m"
);
args = split(" ", argv[1]);
}
var modified_time = io.fstat(filename).st_mtime;
println(os_time(), info_hd(), "\e[1mwatching ", filename, " ..\e[0m");
while(1) {
unix.sleep(1);
if (!io.exists(filename)) {
println(
os_time(),
err_hd(),
"\e[1mfile <",
filename,
"> does not exist\e[0m"
);
break;
}
var latest_modified_time = io.fstat(filename).st_mtime;
if (latest_modified_time!=modified_time) {
modified_time = latest_modified_time;
println(os_time(), modified_hd(), "\e[1m", filename, "\e[0m");
var cmd = (os.platform()=="windows"?"":"./") ~ "nasal " ~ filename;
foreach(var i; args) {
cmd ~= " " ~ i;
}
println(
os_time(),
info_hd(),
"\e[1mexecuting command \"",
cmd,
"\"\e[0m"
);
var subproc = subprocess.create(["nasal", filename]~args);
unix.sleep(2);
var ret = subprocess.terminate(subproc);
println(
os_time(),
ret!=0? err_hd():info_hd(),
"\e[1mprocess returned " ~ ret ~ "\e[0m"
);
}
}