1 use sysinfo
::{ ProcessExt
, SystemExt
};
3 use std
::{ fs
, time
::SystemTime
};
5 use chrono
::{ DateTime
, offset
::Local
};
7 #[cfg(target_os = "linux")]
10 #[derive(Clone, Debug)]
11 pub struct MinecraftExe
{
13 load_average_5min
: f64, // [%].
15 world_size
: u64, // [B].
16 active_players
: Vec
<String
>,
17 last_backup
: Option
<SystemTime
>,
21 pub fn format_memory(&self) -> String
{
22 format_byte_size(self.memory
* 1024, 2)
25 pub fn format_load_average(&self) -> String
{
26 format!("{:.2} %", self.load_average_5min
)
29 pub fn format_uptime(&self) -> String
{
30 let mins
= self.uptime
/ 60;
31 let hours
= mins
/ 60;
32 let days
= hours
/ 24;
33 format!("{}d {}h {}min", days
, hours
- 24 * days
, mins
- 60 * hours
)
36 pub fn format_world_size(&self) -> String
{
37 format_byte_size(self.world_size
, 2)
40 pub fn format_active_players(&self) -> String
{
41 /* Commented because the player list isn't correct (the number is).
42 if self.active_players.len() == 0 {
43 String::from("<none>")
45 self.active_players.join(", ")
47 self.active_players
.len().to_string()
50 pub fn format_last_backup(&self) -> String
{
51 match self.last_backup
{
53 let datetime
: DateTime
<Local
> = t
.into();
54 datetime
.format("%d/%m/%Y %T").to_string()
56 None
=> String
::from("?")
61 const BINARY_PREFIXES
: [&str; 8] = ["B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB"];
63 fn format_byte_size(bytes
: u64, precision
: usize) -> String
{
65 let mut size
: u64 = 1;
66 size
*= 1024u64.pow(i
as u32);
69 return format!("{} {}", std
::cmp
::max(0u64, bytes
), BINARY_PREFIXES
[i
]);
71 else if bytes
< 1024 * size
{
72 return format!("{:.prec$} {}", bytes
as f64 / size
as f64, BINARY_PREFIXES
[i
], prec
= precision
);
79 const MINECRAFT_PROCESS_NAME
: &str = "minecraft_server";
81 #[cfg(target_os = "linux")]
82 const STRING_BEFORE_CHARACTER_NAME
: &str = "Got character ZDOID from";
84 #[cfg(target_os = "linux")]
85 const STRING_BEFORE_NB_OF_CONNECTIONS
: &str = "Connections";
87 // It doesn't work for the moment, it only scan the connection event and do not treat disconnections.
88 #[cfg(target_os = "linux")]
89 fn get_active_players() -> Vec
<String
> {
91 journal
::OpenOptions
::default().current_user(true).open().unwrap();
93 journal
.seek_tail().unwrap();
95 let mut number_of_connections
= -1i32;
96 let mut players
: Vec
<String
> = Vec
::new();
99 match journal
.previous_entry() {
101 if let (Some(unit
), Some(mess
)) = (entry
.get("_SYSTEMD_UNIT"), entry
.get("MESSAGE")) {
102 if unit
== "minecraft.service" {
103 if let Some(pos
) = mess
.find(STRING_BEFORE_CHARACTER_NAME
) {
104 let character_str
= mess
.get(pos
+STRING_BEFORE_CHARACTER_NAME
.len()+1..).unwrap();
105 if let Some(pos_end
) = character_str
.find(" : ") {
106 let player_name
= String
::from(character_str
.get(0..pos_end
).unwrap());
107 if !players
.contains(&player_name
) {
108 players
.push(player_name
);
109 if players
.len() as i32 == number_of_connections
{
115 else if let Some(pos
) = mess
.find(STRING_BEFORE_NB_OF_CONNECTIONS
) {
116 let nb_of_connections_str
= mess
.get(pos
+STRING_BEFORE_NB_OF_CONNECTIONS
.len()+1..).unwrap();
117 if let Some(pos_end
) = nb_of_connections_str
.find(' '
) {
118 if let Ok(n
) = nb_of_connections_str
.get(0..pos_end
).unwrap().parse
::<i32>() {
119 if number_of_connections
== -1 {
120 number_of_connections
= n
;
122 if players
.len() as i32 >= number_of_connections
{
137 #[cfg(target_os = "windows")]
138 fn get_active_players() -> Vec
<String
> {
142 fn get_last_backup_datetime(backup_path
: &str) -> Option
<SystemTime
> {
144 fs
::read_dir(backup_path
).ok()?
.filter_map(
147 if dir
.path().is_file() { Some(dir
.metadata().ok()?
.modified().ok()?
) } else { None
}
150 .collect
::<Vec
<SystemTime
>>();
154 Some(times
.last()?
.clone())
157 pub fn get_minecraft_executable_information(world_path
: &str, backup_path
: &str) -> Option
<MinecraftExe
> {
158 let mut system
= sysinfo
::System
::new_all();
159 system
.refresh_system();
160 let processes
= system
.get_process_by_name(MINECRAFT_PROCESS_NAME
);
162 if processes
.len() >= 1 {
163 let process
= processes
.first().unwrap();
165 let world_size
= match std
::fs
::metadata(world_path
) { Ok(f
) => f
.len(), Err(_
) => 0u64 };
169 memory
: process
.memory(),
170 load_average_5min
: system
.get_load_average().five
/ system
.get_processors().len() as f64 * 100.,
171 uptime
: std
::time
::SystemTime
::now().duration_since(std
::time
::UNIX_EPOCH
).unwrap().as_secs() - process
.start_time(),
173 active_players
: get_active_players(),
174 last_backup
: get_last_backup_datetime(backup_path
)