mirror of
https://git.pumpin.online/funkpower/typikon.git
synced 2026-10-22 18:57:13 +00:00
funkpower
899d9d9b00
The generator refuses a module built by a different version, and the error it gives names two versions without saying which is which. Reading the wanted one out of the lock file also fixes the install hint, which had been printing the requirement from Cargo.toml: "0.2", which is not a version anything can be installed at.
66 lines
2.5 KiB
Bash
Executable File
66 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build the npm package into npm/dist.
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#
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# npm/build.sh # needs wasm-bindgen-cli at the version below
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# WASM_BINDGEN=/path/to/wasm-bindgen npm/build.sh
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#
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# Two builds go in: `node/` for Node, which loads the module itself, and
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# `web/` for browsers and bundlers, which cannot compile WebAssembly
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# synchronously on the main thread and so has to be awaited. The exports map
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# in package.json picks between them.
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set -euo pipefail
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root="$(cd "$(dirname "$0")/.." && pwd)"
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cd "$root"
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version="$(sed -n 's/^version = "\(.*\)"/\1/p' Cargo.toml | head -1)"
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bindgen="${WASM_BINDGEN:-wasm-bindgen}"
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dist="npm/dist"
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# The generator has to be the exact version the crate was built against, or it
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# refuses the module. Cargo.lock is where that version actually is.
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want="$(awk '/^name = "wasm-bindgen"$/{getline; gsub(/[",]/,""); print $3; exit}' Cargo.lock)"
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command -v "$bindgen" >/dev/null || {
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echo "wasm-bindgen is not on PATH." >&2
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echo " cargo install wasm-bindgen-cli --version $want" >&2
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echo "or take the prebuilt one from" >&2
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echo " https://github.com/rustwasm/wasm-bindgen/releases/tag/$want" >&2
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exit 1
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}
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have="$("$bindgen" --version | awk '{print $2}')"
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[ "$have" = "$want" ] || {
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echo "wasm-bindgen $have, but Cargo.lock pins $want" >&2
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exit 1
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}
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cargo build --lib --release --target wasm32-unknown-unknown --features wasm
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rm -rf "$dist"
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for target in nodejs web; do
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out="$dist/$([ "$target" = nodejs ] && echo node || echo web)"
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"$bindgen" --target "$target" --out-dir "$out" --out-name typikon \
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target/wasm32-unknown-unknown/release/typikon.wasm
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# wasm-bindgen writes an overridden parameter type without the optional
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# marker, so an options argument nobody wants to pass has to be passed as
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# `undefined`. The override is what gives the argument a real type at all;
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# this restores the `?` it costs.
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sed -i 's/options: Options/options?: Options/g' "$out/typikon.d.ts"
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done
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# wasm-opt, where it is to hand. Worth about a fifth of the file.
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if command -v wasm-opt >/dev/null; then
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for w in "$dist"/*/typikon_bg.wasm; do
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wasm-opt -Oz -o "$w.opt" "$w" && mv "$w.opt" "$w"
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done
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fi
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sed "s/@VERSION@/$version/" npm/package.json.in > "$dist/package.json"
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# The package is ESM; the Node build is what wasm-bindgen emits for Node, which
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# is CommonJS. One file says so for that directory alone.
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echo '{ "type": "commonjs" }' > "$dist/node/package.json"
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cp npm/README.md "$dist/README.md"
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cp LICENSE "$dist/LICENSE"
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echo "built $dist, version $version"
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du -h "$dist"/*/typikon_bg.wasm
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