refs https://sharp.pixelplumbing.com/api-utility#cache
- Sharp has a 50MB cache by default, used within libvips, to increase
the performance of transforming images
- this isn't relevant to us because we should never be optimizing the
same image as we check if the optimized image already exists
- I presume there is also some extra overhead of using the cache because
the memory doesn't seem to grow by 50MB
- the memory usage comparison in Ghost is pretty drastic - uploading 10
images in serial w/ jemalloc:
- with cache (default) = peak of 480MB, settles down to 330MB
- disabling cache = peak of 270MB, settles down to 161MB
- this commit disables the cache
- also adds stubbing for the function in tests
refs https://github.com/TryGhost/Ghost/issues/11944
- it's useful for consuming applications to know if images can be transformed outside of actually performing the transform (eg, when outputting "resized" image URLs)
- added `canTransformFiles()` that returns a boolean for whether or not `sharp` is installed
closes#10301
* Redirected to original image for gifs & svgs
* Created canTransformFileExtension method
* Updated image middlewares to use canTransformFileExtension
no-issue
* Added InternalServerError to resizeImage
* Added a redirect to original image if sharp is missing
* Improved naming - safeMethod -> method
* Updated process method to follow same sharp check pattern
* Refactor safety wrapper into makeSafe function
* Moved generic manipulation error to makeSafe function
* Refactored unsafeProcess to use unsafeResizeImage
* Removed CRAZY catch
refs #10181
* Added initial handleImageSizes middleware
* Implemented saveRaw method on local file storage
* Wired up handleImageSizes middleware
* Implemented delete for LocalFileStorage
* Removed delete method from theme Storage class
* Deleted sizes directory when theme is activated
* Ensured that smaller images are not enlarged
* Renamed sizes -> size
* Exited middleware as early as possible
* Called getStorage as late as possible
* Updated image sizes middleware to handle dimension paths
* Revert "Deleted sizes directory when theme is activated"
This reverts commit 9204dfcc73a6a79d597dbf23651817bcbfc59991.
* Revert "Removed delete method from theme Storage class"
This reverts commit b45fdb405a05faeaf4bd87e977c4ac64ff96b057.
* Revert "Implemented delete for LocalFileStorage"
This reverts commit a587cd6bae45b68a293b2d5cfd9b7705a29e7bfa.
* Fixed typo
Co-Authored-By: allouis <fabien@allou.is>
* Redirected to original image if no image_sizes config
* Refactored redirection because rule of three
* Updated comments
* Added rubbish tests
* Added @TODO comment for handleImageSizes tests
* Added safeResizeImage method to image manipulator
* Used image manipulator lib in image_size middleware
closes#10144
- When the input image is well optimized and has smaller byte size than the processed one it's still being used
- Bumped sharp version to have access to `size` property
refs #4453
* On by default
* Added config to disable resizing
* Added basic image optimization processing
* Added dep: sharp (optional dep)
* Added resize middleware
* Take care of rotation based on EXIF information
* Removed all meta data from optimised image
* Added handling if sharp could not get installed
* Do not read ext twice - optimisation
* Do not call sharp if config is disabled
* Do not remove the original image which was uploaded (store 2 images)
* Support of `req.files` for internal logic
* Disabled cache to enable file removal on Windows
