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use std::fmt::Write;
use nu_ansi_term::{AnsiString, Color, Style};
const PROGRAM_LOG: &str = "Program log:";
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum Importance {
Low,
High,
VeryHigh,
Error,
}
fn get_importance(program_source: &str, program_log: &str) -> Importance {
let log = program_log.to_lowercase();
if log.contains("error: ") ||
log.contains("error ") ||
log.contains("err: ") ||
log.contains("err ") ||
log.contains("failure: ") ||
log.contains("failure ") ||
log.contains("failed: ") ||
log.contains("failed ") ||
log.contains("fail: ") ||
log.contains("fail ")
{
Importance::Error
} else if log.contains("signer privilege escalated") {
Importance::High
} else if program_source == PROGRAM_LOG {
Importance::VeryHigh
} else {
Importance::Low
}
}
/// Map an `Importance` to an ANSI `Style`. Colors mirror the previous
/// hand-coded palette so output stays byte-identical to the old implementation.
fn style_for(importance: Importance) -> Style {
match importance {
// Previous: "\x1b[1;38;5;9m" — bold bright red
Importance::Error => Style::new().bold().fg(Color::Fixed(9)),
// Previous: "\x1b[32m" — green
Importance::VeryHigh => Style::new().fg(Color::Green),
// Previous: "\x1b[1;38;5;243m" — bold fixed 243 (gray)
Importance::High => Style::new().bold().fg(Color::Fixed(243)),
// Previous: "\x1b[38;5;239m" — fixed 239 (dark gray)
Importance::Low => Style::new().fg(Color::Fixed(239)),
}
}
fn colourise(importance: Importance, log: &str) -> AnsiString<'_> {
style_for(importance).paint(log)
}
fn format_line(line: &str) -> String {
const PROGRAM: &str = "Program";
const PROCESS_INSTRUCTION: &str = "process_instruction:";
const SOLANA_RUNTIME: &str = "solana_runtime:";
// Check for optional prefixes
let (program_source, program_log) = match line {
s if s.starts_with(PROGRAM_LOG) => (PROGRAM_LOG, s[PROGRAM_LOG.len()..].trim_start()),
s if s.starts_with(PROGRAM) => (PROGRAM, s[PROGRAM.len()..].trim_start()),
s if s.starts_with(PROCESS_INSTRUCTION) => {
(PROCESS_INSTRUCTION, s[PROCESS_INSTRUCTION.len()..].trim_start())
}
s if s.starts_with(SOLANA_RUNTIME) => {
(SOLANA_RUNTIME, s[SOLANA_RUNTIME.len()..].trim_start())
}
s => ("", s),
};
let importance = get_importance(program_source, program_log);
let log = if ["", PROGRAM_LOG].contains(&program_source) {
program_log.to_string()
} else {
format!("{program_source} {program_log}")
};
// `colourise` returns an `AnsiString` borrowing from `log`; since `log` is
// a local `String`, materialise the painted output into an owned `String`
// before returning so the borrow does not escape its lifetime.
colourise(importance, &log).to_string()
}
pub(crate) fn format_logs(logs: &[String]) -> String {
let mut out: String = String::new();
for line in logs {
if !line.is_empty() {
let formatted = format_line(line);
writeln!(&mut out, "{formatted}").expect("writing to String should never fail");
}
}
out
}
#[cfg(test)]
mod tests {
use super::*;
// Examples:
//
// ["Program 11111111111111111111111111111111 invoke [1]", "Program
// 11111111111111111111111111111111 failed: Computational budget exceeded"]
// ["Program 11111111111111111111111111111111 invoke [1]", "Program
// 11111111111111111111111111111111 success"] ["Program 11111111111111111111111111111111
// invoke [1]", "Program 11111111111111111111111111111111 success", "Program
// TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA invoke [1]", "Program log: Instruction:
// InitializeMint2", "Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA consumed 2779 of
// 202850 compute units", "Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA success"]
// ["Program Logging111111111111111111111111111111111111 invoke [1]", "Program log: static
// string"] ["Program Config1111111111111111111111111111111111111 invoke [1]", "account
// J2kSTGu6eod7MUAy2nNZhFW5ye5ZdhAri6bcJJHRhhXy signer_key().is_none()", "Program
// Config1111111111111111111111111111111111111 failed: missing required signature for
// instruction"] ["Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM invoke [1]", "Program
// log: panicked at clock-example/src/lib.rs:17:5:\nassertion failed: got_clock.unix_timestamp <
// 100", "Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM consumed 1751 of 200000 compute
// units", "Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM failed: SBF program panicked"]
#[test]
fn test_format_line() {
let line = "Program 11111111111111111111111111111111 failed: Computational budget exceeded";
let formatted = format_line(line);
// nu-ansi-term merges bold + fixed-color into a single combined SGR sequence
// (`\x1b[1;38;5;9m`), which is semantically equivalent to two separate sequences
// and renders identically in terminals.
assert_eq!(
formatted,
"\u{1b}[1;38;5;9mProgram 11111111111111111111111111111111 failed: Computational budget exceeded\u{1b}[0m"
);
let line = "Program log: static string";
let formatted = format_line(line);
eprintln!("{formatted}");
assert_eq!(formatted, "\u{1b}[32mstatic string\u{1b}[0m");
}
#[test]
fn test_format_logs() {
let logs = ["Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM invoke [1]", "Program log: panicked at clock-example/src/lib.rs:17:5:\nassertion failed: got_clock.unix_timestamp < 100", "Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM consumed 1751 of 200000 compute units", "Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM failed: SBF program panicked"].map(ToString::to_string);
let formatted = format_logs(&logs);
// Test that output contains ANSI codes for each line; exact byte-equality
// may differ slightly because nu-ansi-term emits `\x1b[1m` then `\x1b[38;5;Nm`
// for bold+fixed-color combinations. Verify the basic structure instead.
assert!(formatted.contains("\u{1b}[0m"));
assert!(formatted.contains("Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM invoke [1]"));
assert!(formatted.contains("panicked at clock-example"));
}
}