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Identities for entities did.bot
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107#!/usr/bin/env bash# Builds one wasm-bindgen crate for the browser and drops the JS glue and the# .wasm where a page serves them from.## Usage: scripts/build-wasm.sh [crate out-dir out-name]## With no arguments it builds crates/didbot-site-anim into site/public/wasm/# as site-anim.js + site-anim_bg.wasm, which is what scripts/build-site.sh# calls it for: Astro's public/ passthrough copies that directory into dist/# untouched, so nothing else has to know this ran. The three arguments name# another crate, output directory and output name, and are all given or none# are; scripts/build-dashboard-wasm.sh, scripts/build-policy-wasm.sh and# scripts/build-policy-anim-wasm.sh are the other callers.## This is its own script because it is the one step needing a toolchain the# rest of the site build does not: the wasm32-unknown-unknown target and a# wasm-bindgen-cli whose version matches the wasm-bindgen crate dependency# exactly (the two talk a private ABI to each other; a mismatch fails loudly,# which is the whole reason the version is pinned rather than "whatever is# installed").## `cargo build --workspace` and `cargo test --workspace` never need this: the# wasm32 target is only touched here, on purpose (see# crates/didbot-site-anim/Cargo.toml's own comment on why the crate builds# fine natively without it). This script is the opt-in.set -euo pipefail
cd "$(dirname "$0")/.."
case "$#" in 0) crate="didbot-site-anim" out_dir="site/public/wasm" out_name="site-anim" ;; 3) crate="$1" out_dir="$2" out_name="$3" ;; *) echo "usage: $0 [crate out-dir out-name]" >&2 exit 2 ;;esac
locked_version="$( awk ' /^name = "wasm-bindgen"$/ { want = 1; next } want && /^version = / { gsub(/"/, "", $3); print $3; exit } ' Cargo.lock)"
if [ -z "$locked_version" ]; then echo "build-wasm: could not find wasm-bindgen's locked version in Cargo.lock" >&2 exit 1fi
if ! rustup target list --installed 2>/dev/null | grep -qx wasm32-unknown-unknown; then echo "build-wasm: the wasm32-unknown-unknown target is not installed." >&2 echo " Install it with: rustup target add wasm32-unknown-unknown" >&2 exit 1fi
if ! command -v wasm-bindgen >/dev/null 2>&1; then echo "build-wasm: wasm-bindgen-cli is not installed." >&2 echo " Install the version matching Cargo.lock ($locked_version) with:" >&2 echo " cargo install wasm-bindgen-cli --version $locked_version --locked" >&2 exit 1fi
installed_version="$(wasm-bindgen --version | awk '{print $2}')"if [ "$installed_version" != "$locked_version" ]; then echo "build-wasm: wasm-bindgen-cli $installed_version does not match Cargo.lock's wasm-bindgen $locked_version." >&2 echo " wasm-bindgen and wasm-bindgen-cli speak a private ABI and must match exactly. Reinstall with:" >&2 echo " cargo install wasm-bindgen-cli --version $locked_version --locked" >&2 exit 1fi
echo "=== cargo build: $crate for wasm32-unknown-unknown ===" >&2cargo build -p "$crate" --target wasm32-unknown-unknown --release
wasm_in="${CARGO_TARGET_DIR:-target}/wasm32-unknown-unknown/release/${crate//-/_}.wasm"if [ ! -f "$wasm_in" ]; then echo "build-wasm: expected build output at $wasm_in, found nothing" >&2 exit 1fi
echo "=== wasm-bindgen: generating the JS glue in $out_dir ===" >&2# Only this module's files: policy-site/public/wasm/ holds two modules.rm -f "$out_dir/$out_name.js" "$out_dir/$out_name.d.ts" \ "$out_dir/${out_name}_bg.wasm" "$out_dir/${out_name}_bg.wasm.d.ts"mkdir -p "$out_dir"wasm-bindgen --target web --out-dir "$out_dir" --out-name "$out_name" "$wasm_in"
if command -v wasm-opt >/dev/null 2>&1; then echo "=== wasm-opt: shrinking the release binary ===" >&2 wasm-opt -Oz -o "$out_dir/${out_name}_bg.wasm.opt" "$out_dir/${out_name}_bg.wasm" mv "$out_dir/${out_name}_bg.wasm.opt" "$out_dir/${out_name}_bg.wasm"else echo "build-wasm: wasm-opt not found on PATH; shipping the unoptimized binary." >&2 echo " Install binaryen for a smaller artifact: https://github.com/WebAssembly/binaryen" >&2fi
size_bytes="$(wc -c <"$out_dir/${out_name}_bg.wasm")"echo "build-wasm: done — $out_dir/${out_name}_bg.wasm is ${size_bytes} bytes" >&2