If you have to maintain an iOS / Android app and re-generate app icons in different resolutions all the time, If your designer likes to give you a vectorial asset a does not generate proper assets from it. Well this can take care of that.
This is a quick and dirty hack of an existing image magic script I found in GH. Now it will resize a source image into all the sizes listed in a file.
Sizes are described as a list of coma separated integers. Sizes are expressed in px. (not pt)
Install Python and ImageMagick from mac-ports or whatever you like.
ex of use case :
then (macOS)
open .
Voila !
Original licencing unclear. Added MIT :
The MIT License (MIT)
Copyright © 2015 www.vladstudio.com / weavee.net
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.