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api2/node/syslog.rs: improve error handling

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This commit is contained in:
Dietmar Maurer 2019-01-26 10:23:52 +01:00
parent 0441886842
commit e182ab4a4a
1 changed files with 23 additions and 12 deletions
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35
src/api2/node/syslog.rs
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@ -18,11 +18,11 @@ fn dump_journal(
service: Option<&str>,
) -> Result<(u64, Vec<Value>), Error> {
let mut args = vec!["-o", "short", "--no-pager"];
let mut args = vec!["-o", "short", "--no-pagera"];
if let Some(service) = service { args.push("--unit"); args.push(service); }
if let Some(since) = since { args.push("--since"); args.push(since); }
if let Some(until) = until { args.push("--until"); args.push(until); }
if let Some(service) = service { args.extend(&["--unit", service]); }
if let Some(since) = since { args.extend(&["--since", since]); }
if let Some(until) = until { args.extend(&["--until", until]); }
let mut lines: Vec<Value> = vec![];
let mut limit = limit.unwrap_or(50);
@ -38,18 +38,29 @@ fn dump_journal(
if let Some(ref mut stdout) = child.stdout {
for line in BufReader::new(stdout).lines() {
count += 1;
if count < start { continue };
if limit <= 0 { continue };
match line {
Ok(line) => {
count += 1;
if count < start { continue };
if limit <= 0 { continue };
let line = line?; // fixme: nom utf8??
lines.push(json!({ "n": count, "t": line }));
lines.push(json!({ "n": count, "t": line }));
limit -= 1;
limit -= 1;
}
Err(err) => {
eprintln!("reading journal failed: {}", err);
let _ = child.kill();
break;
}
}
}
}
let status = child.wait()?; // fixme: check status
let status = child.wait().unwrap();
if !status.success() {
eprintln!("journalctl failed with {}", status);
}
// HACK: ExtJS store.guaranteeRange() does not like empty array
// so we add a line
@ -68,7 +79,7 @@ fn get_syslog(param: Value, _info: &ApiMethod) -> Result<Value, Error> {
param["limit"].as_u64(),
param["since"].as_str(),
param["until"].as_str(),
param["service"].as_str());
param["service"].as_str())?;
//fixme: $restenv->set_result_attrib('total', $count);