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// module to set the appropriate log settings based on configs
// returns a boolean to say whether we should enable color on
// stdout or not.
//
// Also (and this is a really inexcusable kludge), we patch the
// log.warn() method so that when we see a peerDep override
// explanation from Arborist, we can replace the object with a
// highly abbreviated explanation of what's being overridden.
const log = require('npmlog')
const { explain } = require('./explain-eresolve.js')
module.exports = (config) => {
const color = config.get('color')
const { warn } = log
const stdoutTTY = process.stdout.isTTY
const stderrTTY = process.stderr.isTTY
const dumbTerm = process.env.TERM === 'dumb'
const stderrNotDumb = stderrTTY && !dumbTerm
// this logic is duplicated in the config 'color' flattener
const enableColorStderr = color === 'always' ? true
: color === false ? false
: stderrTTY
const enableColorStdout = color === 'always' ? true
: color === false ? false
: stdoutTTY
log.warn = (heading, ...args) => {
if (heading === 'ERESOLVE' && args[1] && typeof args[1] === 'object') {
warn(heading, args[0])
return warn('', explain(args[1], enableColorStdout, 2))
}
return warn(heading, ...args)
}
if (config.get('timing') && config.get('loglevel') === 'notice')
log.level = 'timing'
else
log.level = config.get('loglevel')
log.heading = config.get('heading') || 'npm'
if (enableColorStderr)
log.enableColor()
else
log.disableColor()
if (config.get('unicode'))
log.enableUnicode()
else
log.disableUnicode()
// if it's more than error, don't show progress
const quiet = log.levels[log.level] > log.levels.error
if (config.get('progress') && stderrNotDumb && !quiet)
log.enableProgress()
else
log.disableProgress()
}