Confirm that things work as expected with the following:
npm install
npm testThe output should include something like this:
Running "newer:imagemin:main" (newer) task
Running "imagemin:main" (imagemin) task
✔ Source/deep/dir/origin.jpg (saved 4.57 kB)
✔ Source/not.png (saved 59.88 kB)
Minified 2 images (saved 64.44 kB)
Running "newer-timestamp:imagemin:main:/path/to/test-imagemin/node_modules/grunt-newer/.cache" (newer-timestamp) task
Running "newer-reconfigure:imagemin:main:1" (newer-reconfigure) task
Done, without errors.
Ok, now update one of the Source images.
touch Source/deep/dir/origin.jpg # or otherwise update the mtime
npm testNow we expect just the origin.jpg to be run through imagemin:
Running "newer:imagemin:main" (newer) task
Running "imagemin:main" (imagemin) task
✔ Source/deep/dir/origin.jpg (saved 4.57 kB)
Minified 1 image (saved 4.57 kB)
Running "newer-timestamp:imagemin:main:/Users/tschaub/projects/test-imagemin/node_modules/grunt-newer/.cache" (newer-timestamp) task
Running "newer-reconfigure:imagemin:main:1" (newer-reconfigure) task
Done, without errors.
The output above confirms that just the one modified image was processed in the second run.