fix(gatsby-plugin-sharp): pass input buffer instead of readStream when processing image jobs #33685
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…n processing image jobs
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…n processing image jobs (#33685) (#33694) Co-authored-by: Michal Piechowiak <[email protected]>
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…n processing image jobs (#33685) (#33703) (cherry picked from commit b800559) Co-authored-by: Michal Piechowiak <[email protected]>
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…n processing image jobs (gatsbyjs#33685)
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…n processing image jobs (#33685)
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Description
With single readStream and multiple sharp pipelines there is opportunity for mishandling / not syncing things properly. In particular our setup was piping readStream too early (it should pipe it after all pipelines were created, but this ended up not being easy task due to way
duotoneoption is handled, which essentially "consumes" pipeline build so far and building another pipeline on top of that).I did check
sharpinternals, and it seems like there is no actual benefit of using streams over buffers, because sharp internally will "convert" stream to buffer anyway, before passing it to native land:https://github.com/lovell/sharp/blob/319db21f29a3c838fe52aa0713a10837581e831c/lib/output.js#L1099-L1116
This is where JS pass things to C++ land, notice how it's not streaming, it just wait for
readStreamto finish and reader of data to push everything to buffer. Similarly C++ side of it only handle 2 cases - buffer or filepath (no mention of streams) - https://github.com/lovell/sharp/blob/319db21f29a3c838fe52aa0713a10837581e831c/src/common.cc#L77-L87We do have still other cases of using read streams as input in plugin, but those are not problematic so far and they use single stream + single output model, so not converting them to buffers to focus on place with actual problem
Related Issues
Fixes #33557
[ch40306]