feat(crypto-js): Encode the WASM as base64 for portability #1167
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| "pack": "wasm-pack pack", | ||
| "prepublish": "npm run pack", | ||
| "publish": "wasm-pack publish" |
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I've removed these for now as I don't think they'll do the right thing, and they seemed to be a footgun.
Some nasty hackery to get around the nastiness of the JS ecosystem
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hold off on review for a minute, have realised a thinko |
Use a lookup table instead of a function with if statements
Codecov ReportBase: 73.07% // Head: 73.62% // Increases project coverage by
Additional details and impacted files@@ Coverage Diff @@
## main #1167 +/- ##
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+ Coverage 73.07% 73.62% +0.55%
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Files 110 110
Lines 12304 12384 +80
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+ Hits 8991 9118 +127
+ Misses 3313 3266 -47
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@Hywan these tests pass locally, and I don't really understand what they are complaining about. Any ideas? |
This patch also improves the “phrasing”, simplifies the code a little bit etc. Small stuff.
| RUSTFLAGS='-C opt-level=z' WASM_BINDGEN_WEAKREF=1 wasm-pack build --release --target nodejs --scope matrix-org --out-dir pkg | ||
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| # Convert the Wasm into a JS file that exports the base64'ed Wasm. | ||
| echo "module.exports = \`$(base64 pkg/matrix_sdk_crypto_js_bg.wasm)\`;" > pkg/matrix_sdk_crypto_js_bg.wasm.js |
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@Hywan I don't love that this means that we'll slurp the whole 4.3MB of base64ed-WASM into bash and pass it as an argument to echo. Did my previous solution of writing it straight to the output file not work for you?
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Oh sorry, I was just trying to debug something. Your previous solution was good too!
| # 2. Remove the imports of `TextDecoder` and `TextEncoder`. We rely on the global defaults. | ||
| loadwasm='const bytes = require("./unbase64.js")(require("./matrix_sdk_crypto_js_bg.wasm.js"));' | ||
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| # sed on OSX uses different syntax for sed -i, so let's just avoid it. |
Mostly because, as of #1167, we no longer have a `publish` script.
Now that we use the Rust crypto stack (matrix-org/matrix-react-sdk#12630), the legacy olm library is unneeded. Remove all the dedicated cruft for loading it. (All this crap is why matrix-sdk-crypto-wasm has to base64 its wasm artifact, cf matrix-org/matrix-rust-sdk#1167.)
I'm sorry about the filthiness of this hack.
It seems like the only way to get the WASM loaded correctly everywhere is to base64 it into a regular JS module. So, let's do that...
The
--target nodejsseems to be closest to what we want; I also tried--target bundler, but orchestrating the different modules was rather more complicated.