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The fetcher accepts image/svg+xml and internal/magic detects SVG. orig of an SVG at the orig size is the SVG unchanged, cached as a variant; at another size it is ErrSVGNotOriginalSize (400). Any other format renders it with libvips' thumbnail at the least size covering the output, at most 8192 on a side, so it stays sharp. An SVG's own size is not limited; one with a side over 8192 times the other is ErrSVGTooThin (415). The cache reads up to 1024 first bytes to find a file's format. Tests that pinned the SVG refusal now expect SVG to be read. Render time and memory are unbounded: P1 in TODO.md until the owner decides on #68. Model: opus-5-5
44 lines
1.5 KiB
Markdown
44 lines
1.5 KiB
Markdown
# Workflow
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- branch per issue from `next`
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- do the work in Next Step
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- delete Next Step from `TODO.md`
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- `TODO.md` merges with git's union merge (`.gitattributes`), which never
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reports a conflict: read the merged entries after every merge or rebase
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- move the top item of Future Steps into Next Step
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- commit (`TODO.md` changes in the same commit as the work)
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- open a PR based on `next`
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- an independent reviewer who did not write the change gates it
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- the manager squash-merges the PR into `next` once review passes
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- `next` stays green and mergeable to `main` at any time; only the owner merges
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`next` into `main`, via the single milestone PR
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- push
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# Status
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pre-1.0. The `1.0.0` milestone is in progress.
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# Next Step
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P1: security: bound the time and memory of rendering an SVG source. Both grow
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with what the SVG draws, such as filter effects. govips cannot stop or limit a
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render. The bound is the owner's decision on
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https://git.eeqj.de/sneak/pixa/issues/68.
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# Future Steps
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- P2: security
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- per-origin rate limiting
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- P2: HTTP response handling
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- Last-Modified headers
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- P2: operational
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- Prometheus metrics still missing:
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- cache hits and misses, split into source images and variants
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- cache size on disk and its limit
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- evictions and the bytes they free
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- upstream fetch duration and errors
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- transcode duration
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- images in processing
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- measure the 1k to 5k req/s target with `script/loadtest` on a machine not
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shared with other work
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