robert/another-asteroids
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Compress the WASM file for even more space savings

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Robert Garrett
2025-11-15 15:16:37 -06:00
parent 3639122e54
commit be83be1a7b
2 changed files with 12 additions and 7 deletions
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13
Makefile
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@@ -15,20 +15,20 @@ SRCS := $(wildcard $(SRC_DIR)/**)
.PHONY: clean full-clean tarball tarball-standalone web web-standalone
# "Standalone" version. It includes an index.html to serve as-is
web-standalone: out/asteroids.js out/asteroids_bg.wasm out/index.html
web-standalone: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html
# "Bundle-able" version. It has a page, but no index.html. Consumers are
# expected to provide their own index.html and link to this page.
web: out/asteroids.js out/asteroids_bg.wasm out/asteroids.html
web: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html
tarball: asteroids_web_root.tar
tarball_standalone: asteroids_web_root_standalone.tar
asteroids_web_root.tar: out/asteroids.js out/asteroids_bg.wasm out/asteroids.html
asteroids_web_root.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html
tar -caf $@ $^
asteroids_web_root_standalone.tar: out/asteroids.js out/asteroids_bg.wasm out/index.html
asteroids_web_root_standalone.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html
tar -caf $@ $^
target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm: $(SRCS) Cargo.lock Cargo.toml
@@ -39,8 +39,9 @@ out:
# Both the JS and WASM files are generated by the wasm-bindgen call, so both
# get to be on the target half of this recipe.
out/asteroids.js out/asteroids_bg.wasm &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm | out
out/asteroids.js out/asteroids_bg.wasm.gz &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm | out
wasm-bindgen --no-typescript --target web --out-dir ./out/ --out-name asteroids target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm
gzip -9 -f out/asteroids_bg.wasm
# Copies the index page to the output dir.
out/index.html: www/index.html
@@ -67,5 +68,5 @@ full-clean: clean
install: web
install -dm0755 $(DESTDIR)
install -m0644 out/asteroids.js $(DESTDIR)/
install -m0644 out/asteroids_bg.wasm $(DESTDIR)/
install -m0644 out/asteroids_bg.wasm.gz $(DESTDIR)/
install -m0644 out/asteroids.html $(DESTDIR)/

6
www/index.html
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@@ -98,7 +98,11 @@
<script type="module">
import init from './asteroids.js'
init().catch((error) => {
let compressed = await fetch("./asteroids_bg.wasm.gz")
let wasm_stream = compressed.body.pipeThrough(new DecompressionStream("gzip"))
let blob = await new Response(wasm_stream).blob();
init(await blob.arrayBuffer()).catch((error) => {
if (!error.message.startsWith("Using exceptions for control flow, don't mind me. This isn't actually an error!")) {
throw error;
}