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build: Pipe wat2wasm directly to esbuild

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This commit is contained in:
Remko Tronçon 2022-05-31 19:50:36 +02:00
parent 0cf61783c8
commit f48dd6b86d
1 changed files with 12 additions and 24 deletions
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20
scripts/esbuild/wasm-text.js
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@ -2,7 +2,6 @@
const { promisify } = require("util");
const exec = promisify(require("child_process").exec);
const fs = require("fs");
const path = require("path");
function wasmTextPlugin({ debug } = {}) {
@ -23,30 +22,19 @@ function wasmTextPlugin({ debug } = {}) {
};
});
build.onLoad({ filter: /.*/, namespace: "wasm-text" }, async (args) => {
// Would be handy if we could get output from stdout without going through file
const out = `wat2wasm.${Math.floor(
Math.random() * 1000000000
)}.tmp.wasm`;
try {
let flags = [];
if (debug) {
flags.push("--debug-names");
}
// console.log("wat: compiling %s", args.path);
await exec(
`wat2wasm ${flags.join(" ")} --output=${out} ${args.path}`
const r = await exec(
`wat2wasm ${flags.join(" ")} --output=- ${args.path}`,
{ encoding: "buffer" }
);
return {
contents: await fs.promises.readFile(out),
contents: r.stdout,
loader: "binary",
};
} finally {
try {
await fs.promises.unlink(out);
} catch (e) {
// ignore
}
}
});
},
};