How to use strong-log-transformer - 2 common examples
To help you get started, we’ve selected a few strong-log-transformer examples, based on popular ways it is used in public projects.
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elastic / kibana / packages / kbn-pm / src / utils / child_process.ts View on Github 
export function spawnStreaming(
command: string,
args: string[],
opts: execa.Options,
{ prefix }: { prefix: string }
) {
const spawned = execa(command, args, {
stdio: ['ignore', 'pipe', 'pipe'],
...opts,
});
const color = nextColor();
const prefixedStdout = logTransformer({ tag: `${color.bold(prefix)}:` });
const prefixedStderr = logTransformer({
mergeMultiline: true,
tag: `${logSymbols.error} ${color.bold(prefix)}:`,
});
spawned.stdout.pipe(prefixedStdout).pipe(process.stdout);
spawned.stderr.pipe(prefixedStderr).pipe(process.stderr);
return spawned;
}export function spawnStreaming(
command: string,
args: string[],
opts: execa.Options,
{ prefix }: { prefix: string }
) {
const spawned = execa(command, args, {
stdio: ['ignore', 'pipe', 'pipe'],
...opts,
});
const color = nextColor();
const prefixedStdout = logTransformer({ tag: `${color.bold(prefix)}:` });
const prefixedStderr = logTransformer({
mergeMultiline: true,
tag: `${logSymbols.error} ${color.bold(prefix)}:`,
});
spawned.stdout.pipe(prefixedStdout).pipe(process.stdout);
spawned.stderr.pipe(prefixedStderr).pipe(process.stderr);
return spawned;
}strong-log-transformer
Stream transformer that prefixes lines with timestamps and other things.
