When using lastRun new files are skipped

What were you expecting to happen?

src should detect newly added files

What actually happened?

images task is running after new file is added, but nothing is copied to build, task is working properly only on changed files (for example changing the resolution of the image and save it). It also works on first run.

Please post a sample of your gulpfile (preferably reduced to just the bit that’s not working)

Example from documentation:

const { src, dest, lastRun, watch } = require('gulp');
const imagemin = require('gulp-imagemin');

function images() {
  return src('src/images/**/*.jpg', { since: lastRun(images) })
    .pipe(imagemin())
    .pipe(dest('build/img/'));
}

function watch() {
  watch('src/images/**/*.jpg', images);
}

exports.watch = watch;

What version of gulp are you using?

4

What versions of npm and node are you using?

6.5.0, 11.1.0

[phated]

@max-ci until now we’ve treated your use case as an edge case for last run because it’s variable whether someone desires a copied file to be passed through. We’ve actually had a discussion on this same issue previously at https://github.com/gulpjs/vinyl-fs/issues/226 without a resolution.

since takes a function that receives each file and returns a timestamp, so you can also do custom logic if you’d like. If that solution doesn’t work for you, maybe the case is too specialized and you might need to reach for another module/plugin.

[3cp]

@phated ideally should not since check both mtime and ctime (in order to cater newly created file through copy/paste)?