feat(logging): Implement a universal logging system

* Added `log` crate support for logging within Zellij (https://docs.rs/log/0.4.14/log/#macros)
* Messages sent over the `stderr` of plugins are now logged as well, bringing back `dbg!` support!
This commit is contained in:
Brooks Rady 2021-07-21 12:33:42 +01:00 committed by GitHub
commit b55c879e7a
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11 changed files with 597 additions and 92 deletions

366
Cargo.lock generated
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version = "0.3.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5277acd7ee46e63e5168a80734c9f6ee81b1367a7d8772a2d765df2a3705d28c"
checksum = "69b041cdcb67226aca307e6e7be44c8806423d83e018bd662360a93dabce4d71"
dependencies = [
"clap",
"lazy_static",
@ -1796,9 +1935,9 @@ dependencies = [
[[package]]
name = "structopt-derive"
version = "0.4.14"
version = "0.4.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5ba9cdfda491b814720b6b06e0cac513d922fc407582032e8706e9f137976f90"
checksum = "7813934aecf5f51a54775e00068c237de98489463968231a51746bbbc03f9c10"
dependencies = [
"heck",
"proc-macro-error",
@ -1827,9 +1966,9 @@ dependencies = [
[[package]]
name = "syn"
version = "1.0.72"
version = "1.0.73"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a1e8cdbefb79a9a5a65e0db8b47b723ee907b7c7f8496c76a1770b5c310bab82"
checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
dependencies = [
"proc-macro2",
"quote",
@ -1860,8 +1999,8 @@ checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
dependencies = [
"cfg-if 1.0.0",
"libc",
"rand 0.8.3",
"redox_syscall 0.2.8",
"rand 0.8.4",
"redox_syscall 0.2.9",
"remove_dir_all",
"winapi",
]
@ -1895,7 +2034,7 @@ checksum = "077185e2eac69c3f8379a4298e1e07cd36beb962290d4a51199acf0fdc10607e"
dependencies = [
"libc",
"numtoa",
"redox_syscall 0.2.8",
"redox_syscall 0.2.9",
"redox_termios",
]
@ -1910,18 +2049,18 @@ dependencies = [
[[package]]
name = "thiserror"
version = "1.0.25"
version = "1.0.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa6f76457f59514c7eeb4e59d891395fab0b2fd1d40723ae737d64153392e9c6"
checksum = "93119e4feac1cbe6c798c34d3a53ea0026b0b1de6a120deef895137c0529bfe2"
dependencies = [
"thiserror-impl",
]
[[package]]
name = "thiserror-impl"
version = "1.0.25"
version = "1.0.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8a36768c0fbf1bb15eca10defa29526bda730a2376c2ab4393ccfa16fb1a318d"
checksum = "060d69a0afe7796bf42e9e2ff91f5ee691fb15c53d38b4b62a9a53eb23164745"
dependencies = [
"proc-macro2",
"quote",
@ -1929,12 +2068,24 @@ dependencies = [
]
[[package]]
name = "time"
version = "0.1.43"
name = "thread-id"
version = "3.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
checksum = "c7fbf4c9d56b320106cd64fd024dadfa0be7cb4706725fc44a7d7ce952d820c1"
dependencies = [
"libc",
"redox_syscall 0.1.57",
"winapi",
]
[[package]]
name = "time"
version = "0.1.44"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
dependencies = [
"libc",
"wasi",
"winapi",
]
@ -1971,6 +2122,21 @@ dependencies = [
"lazy_static",
]
[[package]]
name = "traitobject"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
[[package]]
name = "typemap"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "653be63c80a3296da5551e1bfd2cca35227e13cdd08c6668903ae2f4f77aa1f6"
dependencies = [
"unsafe-any",
]
[[package]]
name = "typetag"
version = "0.1.7"
@ -1997,9 +2163,9 @@ dependencies = [
[[package]]
name = "unicode-segmentation"
version = "1.7.1"
version = "1.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bb0d2e7be6ae3a5fa87eed5fb451aff96f2573d2694942e40543ae0bbe19c796"
checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
[[package]]
name = "unicode-width"
@ -2013,6 +2179,15 @@ version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
[[package]]
name = "unsafe-any"
version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f30360d7979f5e9c6e6cea48af192ea8fab4afb3cf72597154b8f08935bc9c7f"
dependencies = [
"traitobject",
]
[[package]]
name = "utf8parse"
version = "0.1.1"
@ -2043,9 +2218,9 @@ dependencies = [
[[package]]
name = "vcpkg"
version = "0.2.13"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "025ce40a007e1907e58d5bc1a594def78e5573bb0b1160bc389634e8f12e4faa"
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
[[package]]
name = "vec_map"
@ -2097,9 +2272,9 @@ checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
[[package]]
name = "wasi"
version = "0.10.2+wasi-snapshot-preview1"
version = "0.10.0+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
[[package]]
name = "wasm-bindgen"
@ -2369,18 +2544,18 @@ checksum = "87cc2fe6350834b4e528ba0901e7aa405d78b89dc1fa3145359eb4de0e323fcf"
[[package]]
name = "wast"
version = "35.0.2"
version = "36.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2ef140f1b49946586078353a453a1d28ba90adfc54dde75710bc1931de204d68"
checksum = "8b5d7ba374a364571da1cb0a379a3dc302582a2d9937a183bfe35b68ad5bb9c4"
dependencies = [
"leb128",
]
[[package]]
name = "wat"
version = "1.0.37"
version = "1.0.38"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ec280a739b69173e0ffd12c1658507996836ba4e992ed9bc1e5385a0bd72a02"
checksum = "16383df7f0e3901484c2dda6294ed6895caa3627ce4f6584141dcf30a33a23e6"
dependencies = [
"wast",
]
@ -2396,10 +2571,10 @@ dependencies = [
]
[[package]]
name = "wepoll-sys"
version = "3.0.1"
name = "wepoll-ffi"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0fcb14dea929042224824779fbc82d9fab8d2e6d3cbc0ac404de8edf489e77ff"
checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
dependencies = [
"cc",
]
@ -2450,8 +2625,9 @@ name = "zellij"
version = "0.16.0"
dependencies = [
"insta",
"log",
"names",
"rand 0.8.3",
"rand 0.8.4",
"ssh2",
"zellij-client",
"zellij-server",
@ -2463,6 +2639,7 @@ name = "zellij-client"
version = "0.16.0"
dependencies = [
"insta",
"log",
"mio",
"termbg",
"zellij-utils",
@ -2476,9 +2653,12 @@ dependencies = [
"async-trait",
"base64",
"cassowary",
"chrono",
"daemonize",
"insta",
"log",
"serde_json",
"typetag",
"unicode-width",
"wasmer",
"wasmer-wasi",
@ -2515,6 +2695,8 @@ dependencies = [
"interprocess",
"lazy_static",
"libc",
"log",
"log4rs",
"nix",
"once_cell",
"serde",

View File

@ -17,6 +17,7 @@ names = "0.11.0"
zellij-client = { path = "zellij-client/", version = "0.16.0" }
zellij-server = { path = "zellij-server/", version = "0.16.0" }
zellij-utils = { path = "zellij-utils/", version = "0.16.0" }
log = "0.4.14"
[dev-dependencies]
insta = { version = "1.6.0", features = ["backtrace"] }

View File

@ -19,6 +19,7 @@ use zellij_utils::{
};
pub fn main() {
configure_logger();
let opts = CliArgs::from_args();
if let Some(Command::Sessions(Sessions::ListSessions)) = opts.command {

View File

@ -12,6 +12,7 @@ license = "MIT"
mio = "0.7.11"
termbg = "0.2.3"
zellij-utils = { path = "../zellij-utils/", version = "0.16.0" }
log = "0.4.14"
[dev-dependencies]
insta = "1.6.0"

View File

@ -3,6 +3,7 @@ pub mod os_input_output;
mod command_is_executing;
mod input_handler;
use log::info;
use std::env::current_exe;
use std::io::{self, Write};
use std::path::Path;
@ -88,6 +89,7 @@ pub fn start_client(
info: ClientInfo,
layout: Option<Layout>,
) {
info!("Starting Zellij client!");
let clear_client_terminal_attributes = "\u{1b}[?1l\u{1b}=\u{1b}[r\u{1b}12l\u{1b}[?1000l\u{1b}[?1002l\u{1b}[?1003l\u{1b}[?1005l\u{1b}[?1006l\u{1b}[?12l";
let take_snapshot = "\u{1b}[?1049h";
let bracketed_paste = "\u{1b}[?2004h";
@ -293,6 +295,7 @@ pub fn start_client(
);
os_input.disable_mouse();
info!("{}", exit_msg);
os_input.unset_raw_mode(0);
let mut stdout = os_input.get_stdout_writer();
let _ = stdout.write(goodbye_message.as_bytes()).unwrap();

View File

@ -19,6 +19,9 @@ wasmer = "1.0.0"
wasmer-wasi = "1.0.0"
cassowary = "0.3.0"
zellij-utils = { path = "../zellij-utils/", version = "0.16.0" }
log = "0.4.14"
typetag = "0.1.7"
chrono = "0.4.19"
[dev-dependencies]
insta = "1.6.0"

View File

@ -2,6 +2,7 @@ pub mod os_input_output;
pub mod panes;
pub mod tab;
mod logging_pipe;
mod pty;
mod route;
mod screen;
@ -9,6 +10,7 @@ mod thread_bus;
mod ui;
mod wasm_vm;
use log::info;
use zellij_utils::zellij_tile;
use std::path::PathBuf;
@ -114,6 +116,7 @@ pub(crate) enum SessionState {
}
pub fn start_server(os_input: Box<dyn ServerOsApi>, socket_path: PathBuf) {
info!("Starting Zellij server!");
daemonize::Daemonize::new()
.working_directory(std::env::current_dir().unwrap())
.umask(0o077)

View File

@ -0,0 +1,250 @@
use std::{
collections::VecDeque,
io::{Read, Seek, Write},
};
use log::{debug, error};
use wasmer_wasi::{WasiFile, WasiFsError};
use zellij_utils::serde;
use chrono::prelude::*;
use serde::{Deserialize, Serialize};
// 16kB log buffer
const ZELLIJ_MAX_PIPE_BUFFER_SIZE: usize = 16_384;
#[derive(Debug, Serialize, Deserialize)]
#[serde(crate = "self::serde")]
pub struct LoggingPipe {
buffer: VecDeque<u8>,
plugin_name: String,
plugin_id: u32,
}
impl LoggingPipe {
pub fn new(plugin_name: &str, plugin_id: u32) -> LoggingPipe {
LoggingPipe {
buffer: VecDeque::new(),
plugin_name: String::from(plugin_name),
plugin_id,
}
}
fn log_message(&self, message: &str) {
debug!(
"|{:<25.25}| {} [{:<10.15}] {}",
self.plugin_name,
Local::now().format("%Y-%m-%d %H:%M:%S.%3f"),
format!("id: {}", self.plugin_id),
message
);
}
}
impl Read for LoggingPipe {
fn read(&mut self, _: &mut [u8]) -> std::io::Result<usize> {
Err(std::io::Error::new(
std::io::ErrorKind::Other,
"Can not reed from a LoggingPipe",
))
}
}
impl Write for LoggingPipe {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
if self.buffer.len() + buf.len() > ZELLIJ_MAX_PIPE_BUFFER_SIZE {
let error_msg =
"Exceeded log buffer size. Make sure that your plugin calls flush on stderr on \
valid UTF-8 symbol boundary. Aditionally, make sure that your log message contains \
endline \\n symbol.";
error!("{}: {}", self.plugin_name, error_msg);
self.buffer.clear();
return Err(std::io::Error::new(
std::io::ErrorKind::InvalidData,
error_msg,
));
}
self.buffer.extend(buf);
Ok(buf.len())
}
// When we flush, check if current buffer is valid utf8 string, split by '\n' and truncate buffer in the process.
// We assume that eventually, flush will be called on valid string boundary (i.e. std::str::from_utf8(..).is_ok() returns true at some point).
// Above assumption might not be true, in which case we'll have to think about it. Make it simple for now.
fn flush(&mut self) -> std::io::Result<()> {
self.buffer.make_contiguous();
if let Ok(converted_buffer) = std::str::from_utf8(self.buffer.as_slices().0) {
if converted_buffer.contains('\n') {
let mut consumed_bytes = 0;
let mut split_converted_buffer = converted_buffer.split('\n').peekable();
while let Some(msg) = split_converted_buffer.next() {
if split_converted_buffer.peek().is_none() {
// Log last chunk iff the last char is endline. Otherwise do not do it.
if converted_buffer.ends_with('\n') && !msg.is_empty() {
self.log_message(msg);
consumed_bytes += msg.len() + 1;
}
} else {
self.log_message(msg);
consumed_bytes += msg.len() + 1;
}
}
drop(self.buffer.drain(..consumed_bytes));
}
} else {
error!("Buffer conversion didn't work. This is unexpected");
}
Ok(())
}
}
impl Seek for LoggingPipe {
fn seek(&mut self, _pos: std::io::SeekFrom) -> std::io::Result<u64> {
Err(std::io::Error::new(
std::io::ErrorKind::Other,
"can not seek in a pipe",
))
}
}
#[typetag::serde]
impl WasiFile for LoggingPipe {
fn last_accessed(&self) -> u64 {
0
}
fn last_modified(&self) -> u64 {
0
}
fn created_time(&self) -> u64 {
0
}
fn size(&self) -> u64 {
self.buffer.len() as u64
}
fn set_len(&mut self, len: u64) -> Result<(), WasiFsError> {
self.buffer.resize(len as usize, 0);
Ok(())
}
fn unlink(&mut self) -> Result<(), WasiFsError> {
Ok(())
}
fn bytes_available(&self) -> Result<usize, WasiFsError> {
Ok(self.buffer.len())
}
}
// Unit tests
#[cfg(test)]
mod logging_pipe_test {
use super::*;
#[test]
fn write_without_endl_does_not_consume_buffer_after_flush() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "Testing write".as_bytes();
pipe.write(test_buffer).expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), test_buffer.len());
}
#[test]
fn write_with_single_endl_at_the_end_consumes_whole_buffer_after_flush() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "Testing write \n".as_bytes();
pipe.write(test_buffer).expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), 0);
}
#[test]
fn write_with_endl_in_the_middle_consumes_buffer_up_to_endl_after_flush() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "Testing write \n".as_bytes();
let test_buffer2 = "And the rest".as_bytes();
pipe.write(
[
test_buffer,
test_buffer,
test_buffer,
test_buffer,
test_buffer2,
]
.concat()
.as_slice(),
)
.expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), test_buffer2.len());
}
#[test]
fn write_with_many_endl_consumes_whole_buffer_after_flush() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "Testing write \n".as_bytes();
pipe.write(
[
test_buffer,
test_buffer,
test_buffer,
test_buffer,
test_buffer,
]
.concat()
.as_slice(),
)
.expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), 0);
}
#[test]
fn write_with_incorrect_byte_boundary_does_not_crash() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "😱".as_bytes();
// make sure it's not valid utf-8 string if we drop last symbol
assert!(std::str::from_utf8(&test_buffer[..test_buffer.len() - 1]).is_err());
pipe.write(&test_buffer[..test_buffer.len() - 1])
.expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), test_buffer.len() - 1);
println!("len: {}, buf: {:?}", test_buffer.len(), test_buffer);
}
#[test]
fn write_with_many_endls_consumes_everything_after_flush() {
let mut pipe = LoggingPipe::new("TestPipe", 0);
let test_buffer = "Testing write \n".as_bytes();
pipe.write(
[test_buffer, test_buffer, b"\n", b"\n", b"\n"]
.concat()
.as_slice(),
)
.expect("Err write");
pipe.flush().expect("Err flush");
assert_eq!(pipe.buffer.len(), 0);
}
}

View File

@ -1,3 +1,4 @@
use log::info;
use std::collections::{HashMap, HashSet};
use std::fs;
use std::path::PathBuf;
@ -16,6 +17,7 @@ use wasmer_wasi::{Pipe, WasiEnv, WasiState};
use zellij_tile::data::{Event, EventType, PluginIds};
use crate::{
logging_pipe::LoggingPipe,
panes::PaneId,
pty::PtyInstruction,
screen::ScreenInstruction,
@ -55,6 +57,7 @@ pub(crate) struct PluginEnv {
// Thread main --------------------------------------------------------------------------------------------------------
pub(crate) fn wasm_thread_main(bus: Bus<PluginInstruction>, store: Store, data_dir: PathBuf) {
info!("Wasm main thread starts");
let mut plugin_id = 0;
let mut plugin_map = HashMap::new();
loop {
@ -73,6 +76,10 @@ pub(crate) fn wasm_thread_main(bus: Bus<PluginInstruction>, store: Store, data_d
let output = Pipe::new();
let input = Pipe::new();
let stderr = LoggingPipe::new(
path.as_path().file_name().unwrap().to_str().unwrap(),
plugin_id,
);
let mut wasi_env = WasiState::new("Zellij")
.env("CLICOLOR_FORCE", "1")
.preopen(|p| {
@ -85,6 +92,7 @@ pub(crate) fn wasm_thread_main(bus: Bus<PluginInstruction>, store: Store, data_d
.unwrap()
.stdin(Box::new(input))
.stdout(Box::new(output))
.stderr(Box::new(stderr))
.finalize()
.unwrap();

View File

@ -28,6 +28,8 @@ strum = "0.20.0"
termion = "1.5.0"
vte = "0.10.1"
zellij-tile = { path = "../zellij-tile/", version = "0.16.0" }
log = "0.4.14"
log4rs = "1.0.0"
[dependencies.async-std]
version = "1.3.0"

View File

@ -7,9 +7,60 @@ use std::{
path::{Path, PathBuf},
};
use log::LevelFilter;
use log4rs::append::file::FileAppender;
use log4rs::config::{Appender, Config, Logger, Root};
use log4rs::encode::pattern::PatternEncoder;
use crate::consts::{ZELLIJ_TMP_LOG_DIR, ZELLIJ_TMP_LOG_FILE};
use crate::shared::set_permissions;
pub fn configure_logger() {
// {n} means platform dependent newline
// module is padded to exactly 25 bytes and thread is padded to be between 10 and 15 bytes.
let file_pattern = "{highlight({level:<6})} |{module:<25.25}| {date(%Y-%m-%d %H:%M:%S.%3f)} [{thread:<10.15}] [{file}:{line}]: {message} {n}";
// default zellij appender, should be used across most of the codebase.
let log_file = FileAppender::builder()
.encoder(Box::new(PatternEncoder::new(file_pattern)))
.append(true)
.build(ZELLIJ_TMP_LOG_DIR.join("zellij.log"))
.unwrap();
// plugin appender. To be used in loggin_pipe to forward stderr output from plugins. We do some formatting
// in logging_pipe to print plugin name as 'module' and plugin_id instead of thread.
let log_plugin = FileAppender::builder()
.encoder(Box::new(PatternEncoder::new(
"{highlight({level:<6})} {message} {n}",
)))
.append(true)
.build(ZELLIJ_TMP_LOG_DIR.join("zellij.log"))
.unwrap();
// Set the default logging level to "info" and log it to zellij.log file
// Decrease verbosity for `wasmer_compiler_cranelift` module because it has a lot of useless info logs
// For `zellij_server::logging_pipe`, we use custom format as we use logging macros to forward stderr output from plugins
let config = Config::builder()
.appender(Appender::builder().build("logFile", Box::new(log_file)))
.appender(Appender::builder().build("logPlugin", Box::new(log_plugin)))
.logger(
Logger::builder()
.appender("logFile")
.build("wasmer_compiler_cranelift", LevelFilter::Warn),
)
.logger(
Logger::builder()
.appender("logPlugin")
.additive(false)
.build("zellij_server::logging_pipe", LevelFilter::Trace),
)
.build(Root::builder().appender("logFile").build(LevelFilter::Info))
.unwrap();
let _ = log4rs::init_config(config).unwrap();
}
pub fn atomic_create_file(file_name: &Path) -> io::Result<()> {
let _ = fs::OpenOptions::new()
.append(true)