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Introduce --json flag for the CLI

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When `--json` is used the CLI does not log to file, but only on the command line in json output.
This commit is contained in:
Daniel Karzel 2021-05-20 16:36:01 +10:00
parent 9ff29ae491
commit 0187d9ef4f
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GPG key ID: 30C3FC2E438ADB6E
3 changed files with 132 additions and 21 deletions
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52
swap/src/cli/tracing.rs
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@ -5,30 +5,48 @@ use tracing::{Event, Level, Subscriber};
use tracing_subscriber::fmt::format::{DefaultFields, Format};
use tracing_subscriber::fmt::time::ChronoLocal;
use tracing_subscriber::layer::{Context, SubscriberExt};
use tracing_subscriber::{fmt, EnvFilter, Layer, Registry};
use tracing_subscriber::{fmt, EnvFilter, FmtSubscriber, Layer, Registry};
use uuid::Uuid;
pub fn init(debug: bool, dir: impl AsRef<Path>, swap_id: Uuid) -> Result<()> {
let level_filter = EnvFilter::try_new("swap=debug")?;
pub fn init(debug: bool, json: bool, dir: impl AsRef<Path>, swap_id: Uuid) -> Result<()> {
if json {
let level = if debug { Level::DEBUG } else { Level::INFO };
let registry = Registry::default().with(level_filter);
let is_terminal = atty::is(atty::Stream::Stderr);
let appender = tracing_appender::rolling::never(dir, format!("swap-{}.log", swap_id));
let (appender, guard) = tracing_appender::non_blocking(appender);
FmtSubscriber::builder()
.with_env_filter(format!("swap={}", level))
.with_writer(std::io::stderr)
.with_ansi(is_terminal)
.with_timer(ChronoLocal::with_format("%F %T".to_owned()))
.with_target(false)
.json()
.init();
std::mem::forget(guard);
let file_logger = fmt::layer()
.with_ansi(false)
.with_target(false)
.with_writer(appender);
if debug {
set_global_default(registry.with(file_logger).with(debug_terminal_printer()))?;
Ok(())
} else {
set_global_default(registry.with(file_logger).with(info_terminal_printer()))?;
let level_filter = EnvFilter::try_new("swap=debug")?;
let registry = Registry::default().with(level_filter);
let appender = tracing_appender::rolling::never(dir, format!("swap-{}.log", swap_id));
let (appender, guard) = tracing_appender::non_blocking(appender);
std::mem::forget(guard);
let file_logger = fmt::layer()
.with_ansi(false)
.with_target(false)
.with_writer(appender);
if debug {
set_global_default(registry.with(file_logger).with(debug_terminal_printer()))?;
} else {
set_global_default(registry.with(file_logger).with(info_terminal_printer()))?;
}
Ok(())
}
Ok(())
}
pub struct StdErrPrinter<L> {