rasul
5 years ago
commit
75c0f29c3a
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/target
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**/*.rs.bk
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MIT License
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||||
|
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Copyright (c) 2019 Ray Schulz <rascul3@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
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||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
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||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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|
||||
"checksum winconsole 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ef84b96d10db72dd980056666d7f1e7663ce93d82fa33b63e71c966f4cf5032"
|
||||
@ -0,0 +1,12 @@
|
||||
[package]
|
||||
name = "sup"
|
||||
version = "0.1.0"
|
||||
authors = ["rascul <rascul3@gmail.com>"]
|
||||
edition = "2018"
|
||||
|
||||
[dependencies]
|
||||
log = "0.4"
|
||||
rag = { git = "https://gitlab.com/rascul/rag" }
|
||||
serde = "1.0"
|
||||
serde_derive = "1.0"
|
||||
toml = "0.5"
|
||||
@ -0,0 +1,5 @@
|
||||
max_width = 100
|
||||
hard_tabs = true
|
||||
newline_style = "unix"
|
||||
use_try_shorthand = true
|
||||
edition = "2018"
|
||||
@ -0,0 +1,191 @@
|
||||
#[macro_use]
|
||||
extern crate log;
|
||||
extern crate rag;
|
||||
extern crate serde;
|
||||
#[macro_use]
|
||||
extern crate serde_derive;
|
||||
extern crate toml;
|
||||
|
||||
use std::error::Error;
|
||||
use std::fs::File;
|
||||
use std::io::Read;
|
||||
use std::path::PathBuf;
|
||||
use std::process::{Child, Command, ExitStatus};
|
||||
|
||||
type SupResult<T> = Result<T, Box<dyn Error>>;
|
||||
|
||||
#[derive(Clone, Debug, Deserialize)]
|
||||
struct App {
|
||||
name: String,
|
||||
command: String,
|
||||
args: Vec<String>,
|
||||
restart_on_success: Option<bool>,
|
||||
restart_on_failure: Option<bool>,
|
||||
restart_on_terminate: Option<bool>,
|
||||
wait: Option<bool>,
|
||||
hold: Option<bool>,
|
||||
}
|
||||
|
||||
impl App {
|
||||
fn wait_start(&self) -> SupResult<()> {
|
||||
info!("starting application {}", &self.name);
|
||||
|
||||
let mut command = Command::new(&self.command);
|
||||
command.args(&self.args);
|
||||
|
||||
match command.output() {
|
||||
Ok(output) => {
|
||||
if !output.stdout.is_empty() {
|
||||
info!(
|
||||
"[{}] stdout: {}",
|
||||
&self.name,
|
||||
String::from_utf8(output.stdout)?
|
||||
);
|
||||
}
|
||||
if !output.stderr.is_empty() {
|
||||
info!(
|
||||
"[{}] stderr: {}",
|
||||
&self.name,
|
||||
String::from_utf8(output.stderr)?
|
||||
);
|
||||
}
|
||||
}
|
||||
Err(e) => error!("Error starting app: {}: {:?}", &self.name, e),
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Deserialize)]
|
||||
struct Config {
|
||||
app: Vec<App>,
|
||||
}
|
||||
|
||||
impl Config {
|
||||
fn load<T: Into<PathBuf>>(p: T) -> SupResult<Config> {
|
||||
let mut file = File::open(p.into())?;
|
||||
let mut buf = String::new();
|
||||
file.read_to_string(&mut buf)?;
|
||||
Ok(toml::from_str(&buf)?)
|
||||
}
|
||||
|
||||
fn apps(&self) -> Vec<App> {
|
||||
self.app.clone()
|
||||
}
|
||||
}
|
||||
|
||||
struct Proc {
|
||||
app: App,
|
||||
child: Child,
|
||||
}
|
||||
|
||||
impl Proc {
|
||||
fn start(app: App) -> SupResult<Proc> {
|
||||
info!("starting application {}", &app.name);
|
||||
|
||||
let mut command = Command::new(&app.command);
|
||||
command.args(&app.args);
|
||||
|
||||
let child = command.spawn()?;
|
||||
|
||||
Ok(Proc { app, child })
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
if let Err(e) = rag::init() {
|
||||
println!("FATAL: Error initializing logger: {:?}", e);
|
||||
std::process::exit(1);
|
||||
}
|
||||
|
||||
if let Err(e) = run() {
|
||||
error!("FATAL: {:?}", e);
|
||||
std::process::exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
fn run() -> SupResult<()> {
|
||||
let config = Config::load("sup.toml")?;
|
||||
info!("loaded config: sup.toml");
|
||||
|
||||
let mut procs: Vec<Proc> = Vec::new();
|
||||
let mut holds: i8 = 0;
|
||||
|
||||
for app in config.apps() {
|
||||
if app.wait.unwrap_or(false) {
|
||||
if let Err(e) = app.wait_start() {
|
||||
error!("app failed to start: {}: {:?}", &app.name, e);
|
||||
}
|
||||
} else {
|
||||
let name = app.name.clone();
|
||||
match Proc::start(app) {
|
||||
Ok(proc) => {
|
||||
if proc.app.hold.unwrap_or(false) {
|
||||
holds += 1;
|
||||
}
|
||||
procs.push(proc);
|
||||
}
|
||||
Err(e) => error!("application failed to start: {}: {:?}", name, e),
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
if holds < 1 {
|
||||
error!("no holds configured");
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
while holds > 0 {
|
||||
let mut newprocs: Vec<Proc> = Vec::new();
|
||||
|
||||
while let Some(mut proc) = procs.pop() {
|
||||
match proc.child.try_wait() {
|
||||
Ok(Some(status)) => {
|
||||
let hold = proc.app.hold.unwrap_or(false);
|
||||
if handle_exit(&proc.app, status) {
|
||||
let name = proc.app.name.clone();
|
||||
match Proc::start(proc.app) {
|
||||
Ok(p) => newprocs.push(p),
|
||||
Err(e) => {
|
||||
error!("error restarting {}: {:?}", name, e);
|
||||
if hold {
|
||||
holds -= 1;
|
||||
}
|
||||
}
|
||||
};
|
||||
} else if hold {
|
||||
holds -= 1;
|
||||
}
|
||||
}
|
||||
Ok(None) => {
|
||||
newprocs.push(proc);
|
||||
}
|
||||
Err(e) => error!("error: {:?}", e),
|
||||
}
|
||||
}
|
||||
|
||||
procs = newprocs;
|
||||
}
|
||||
|
||||
info!("shutting down");
|
||||
|
||||
for mut proc in procs {
|
||||
let _ = proc.child.kill();
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn handle_exit(app: &App, status: ExitStatus) -> bool {
|
||||
if status.success() {
|
||||
info!("application exited: {}", &app.name);
|
||||
app.restart_on_success.unwrap_or(false)
|
||||
} else if let Some(code) = status.code() {
|
||||
info!("application failed: {} ({})", &app.name, code);
|
||||
app.restart_on_failure.unwrap_or(false)
|
||||
} else {
|
||||
info!("application terminated: {}", &app.name);
|
||||
app.restart_on_terminate.unwrap_or(false)
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,26 @@
|
||||
[[app]]
|
||||
name = "x resource"
|
||||
command = "xrdb"
|
||||
args = ["~/.Xresources"]
|
||||
restart = false
|
||||
wait = true
|
||||
|
||||
[[app]]
|
||||
name = "terminal"
|
||||
command = "alacritty"
|
||||
args = []
|
||||
restart_on_success = true
|
||||
restart_on_failure = true
|
||||
restart_on_terminate = true
|
||||
|
||||
[[app]]
|
||||
name = "env"
|
||||
command = "env"
|
||||
args = []
|
||||
wait = true
|
||||
|
||||
[[app]]
|
||||
name = "window manager"
|
||||
command = "twm"
|
||||
args = []
|
||||
hold = true
|
||||
Loading…
Reference in new issue