Stop trying to assess the image dimensions of large files and file chunks master
Summary: Depends on D18828. Ref T7789. See <https://discourse.phabricator-community.org/t/git-lfs-fails-with-large-images/584>. Currently, when you upload a large (>4MB) image, we may try to assess the dimensions for the image and for each individual chunk. At best, this is slow and not useful. At worst, it fatals or consumes a ton of memory and I/O we don't need to be using. Instead: - Don't try to assess dimensions for chunked files. - Don't try to assess dimensions for the chunks themselves. - Squelch errors for bad data, etc., that `gd` can't actually read, since we recover sensibly. Test Plan: - Created a 2048x2048 PNG in Photoshop using the "Random Noise" filter which weighs 8.5MB. - Uploaded it. - Before patch: got complaints in log about `imagecreatefromstring()` failing, although the actual upload went OK in my environment. - After patch: clean log, no attempt to detect the size of a big image. - Also uploaded a small image, got dimensions detected properly still. Reviewers: amckinley Reviewed By: amckinley Maniphest Tasks: T7789 Differential Revision: https://secure.phabricator.com/D18830