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From: Aaron Lauterer <a.lauterer@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Thu, 4 Apr 2024 16:48:44 +0200
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Subject: [pve-devel] [PATCH installer v4 12/30] auto-installer: add simple
logging
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Log to stdout and the file the binary needs to set up.
This is a first variant. By using the log crate macros we can change
that in the future without too much effort.
Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
---
proxmox-auto-installer/Cargo.toml | 2 ++
proxmox-auto-installer/src/lib.rs | 1 +
proxmox-auto-installer/src/log.rs | 38 +++++++++++++++++++++++++++++++
3 files changed, 41 insertions(+)
create mode 100644 proxmox-auto-installer/src/log.rs
diff --git a/proxmox-auto-installer/Cargo.toml b/proxmox-auto-installer/Cargo.toml
index 80de4fa..b1d3e7a 100644
--- a/proxmox-auto-installer/Cargo.toml
+++ b/proxmox-auto-installer/Cargo.toml
@@ -8,8 +8,10 @@ exclude = [ "build", "debian" ]
homepage = "https://www.proxmox.com"
[dependencies]
+anyhow = "1.0"
proxmox-installer-common = { path = "../proxmox-installer-common" }
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
toml = "0.7"
enum-iterator = "0.6.0"
+log = "0.4.20"
diff --git a/proxmox-auto-installer/src/lib.rs b/proxmox-auto-installer/src/lib.rs
index 72884c1..6636cc7 100644
--- a/proxmox-auto-installer/src/lib.rs
+++ b/proxmox-auto-installer/src/lib.rs
@@ -1,3 +1,4 @@
pub mod answer;
+pub mod log;
pub mod udevinfo;
pub mod utils;
diff --git a/proxmox-auto-installer/src/log.rs b/proxmox-auto-installer/src/log.rs
new file mode 100644
index 0000000..d52912a
--- /dev/null
+++ b/proxmox-auto-installer/src/log.rs
@@ -0,0 +1,38 @@
+use anyhow::{bail, Result};
+use log::{Level, Metadata, Record};
+use std::{fs::File, io::Write, sync::Mutex, sync::OnceLock};
+
+pub struct AutoInstLogger;
+static LOGFILE: OnceLock<Mutex<File>> = OnceLock::new();
+
+impl AutoInstLogger {
+ pub fn init(path: &str) -> Result<()> {
+ let f = File::create(path)?;
+ if LOGFILE.set(Mutex::new(f)).is_err() {
+ bail!("Cannot set LOGFILE")
+ }
+ Ok(())
+ }
+}
+
+impl log::Log for AutoInstLogger {
+ fn enabled(&self, metadata: &Metadata) -> bool {
+ metadata.level() <= Level::Info
+ }
+
+ /// Logs to stdout without log level and into log file including log level
+ fn log(&self, record: &Record) {
+ if self.enabled(record.metadata()) {
+ println!("{}", record.args());
+ let mut file = LOGFILE
+ .get()
+ .expect("could not get LOGFILE")
+ .lock()
+ .expect("could not get mutex for LOGFILE");
+ file.write_all(format!("{} - {}\n", record.level(), record.args()).as_bytes())
+ .expect("could not write to LOGFILE");
+ }
+ }
+
+ fn flush(&self) {}
+}
--
2.39.2