matthiasbeyer/imag
1
0
Fork 0
Code Releases Activity

Make trace() output red

Browse source
This commit is contained in:
Matthias Beyer 2016-05-15 17:47:01 +02:00
parent 5dd0fa900c
commit f22624302c
1 changed files with 7 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
libimagutil/src/trace.rs
View file

@ -2,6 +2,8 @@ use std::error::Error;
use std::io::Write; use std::io::Write;
use std::io::stderr; use std::io::stderr;
use ansi_term::Colour::Red;
/// Print an Error type and its cause recursively /// Print an Error type and its cause recursively
/// ///
/// The error is printed with "Error NNNN :" as prefix, where "NNNN" is a number which increases /// The error is printed with "Error NNNN :" as prefix, where "NNNN" is a number which increases
@ -29,8 +31,9 @@ pub fn trace_error(e: &Error) {
/// Output is the same as for `trace_error()`, though there are only `max` levels printed. /// Output is the same as for `trace_error()`, though there are only `max` levels printed.
pub fn trace_error_maxdepth(e: &Error, max: u64) { pub fn trace_error_maxdepth(e: &Error, max: u64) {
let n = count_error_causes(e); let n = count_error_causes(e);
write!(stderr(), let msg = Red.blink().paint(format!("{}/{} Levels of errors will be printed\n",
"{}/{} Levels of errors will be printed\n", (if max > n { n } else { max }), n).ok(); (if max > n { n } else { max }), n));
write!(stderr(), "{}", msg).ok();
print_trace_maxdepth(n, e, max); print_trace_maxdepth(n, e, max);
write!(stderr(), "").ok(); write!(stderr(), "").ok();
} }
@ -55,7 +58,7 @@ fn print_trace_maxdepth(idx: u64, e: &Error, max: u64) -> Option<&Error> {
} else { } else {
write!(stderr(), "\n").ok(); write!(stderr(), "\n").ok();
} }
write!(stderr(), "ERROR[{:>4}]: {}", idx, e.description()).ok(); write!(stderr(), "{}: {}", Red.paint(format!("ERROR[{:>4}]", idx)), e.description()).ok();
e.cause() e.cause()
} }
@ -65,7 +68,7 @@ fn count_error_causes(e: &Error) -> u64 {
} }
fn print_trace_dbg(idx: u64, e: &Error) { fn print_trace_dbg(idx: u64, e: &Error) {
debug!("ERROR[{:>4}]: {}", idx, e.description()); debug!("{}: {}", Red.blink().paint(format!("ERROR[{:>4}]", idx)), e.description());
if e.cause().is_some() { if e.cause().is_some() {
print_trace_dbg(idx + 1, e.cause().unwrap()); print_trace_dbg(idx + 1, e.cause().unwrap());
} }