Robert Garrett
d34d0a31f2
I did the thing againnnnn. The Makefile thinks the sound assets are
constantly out-of-date because the folder that contains them technically
changes any time a file is added or removed from the folder.
1. "out/assets" is created, it is up-to-date
2. "out/assets/example.ogg" is created, it is up-to-date
3. Parent folder "out/assets" has it's mtime updated because it's
contents have changed. It is newer than it was at step 1, and newer
than the .ogg file in step 2.
4. run `make` again
5. "out/assets" is up-to-date, nothing changes
6. "out/assets/example.ogg" is OLDER than one of it's dependencies
("out/assets/"), and is rebuilt.
7. "out/assets" got new contents, so it's mtime was updated again.
The cycle isn't infinite, but it will always try to rebuild the sound
files. The fix is to consider the containing folder to only be an
ordering dependency rather than a substantive dependency. The former
only needs the dependency to be made first, where the latter considers
the dependency to be part of the target file. The containing folder is
not part of the sound files, so "rebuilding" the sound files when the
folder changes is complete nonsense.
82 lines
2.8 KiB
Makefile
82 lines
2.8 KiB
Makefile
##
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## This Makefile exists to produce WASM builds.
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## Do not use it if that isn't your goal!
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##
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# Patch these to select a different build profile or target
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# The target shouldn't change any time soon. WASM64, I guess. Other targets
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# aren't aimed at the web, so you shouldn't be using this makefile.
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CARGO_TARGET := wasm32-unknown-unknown
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CARGO_PROFILE := tiny
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SRC_DIR = ./src
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SRCS := $(wildcard $(SRC_DIR)/**)
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ASSET_SOURCE := $(wildcard assets/**)
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ASSETS := $(patsubst assets/%.ogg, out/assets/%.ogg, $(ASSET_SOURCE))
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.PHONY: clean full-clean tarball tarball-standalone web web-standalone
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# "Standalone" version. It includes an index.html to serve as-is
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web-standalone: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html $(ASSETS)
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# "Bundle-able" version. It has a page, but no index.html. Consumers are
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# expected to provide their own index.html and link to this page.
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web: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html $(ASSETS)
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tarball: asteroids_web_root.tar
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tarball_standalone: asteroids_web_root_standalone.tar
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asteroids_web_root.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html $(ASSETS)
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tar -caf $@ $^
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asteroids_web_root_standalone.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html $(ASSETS)
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tar -caf $@ $^
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target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm: $(SRCS) Cargo.lock Cargo.toml
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cargo build --profile $(CARGO_PROFILE) --target $(CARGO_TARGET)
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out:
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mkdir $@
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out/assets: | out
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mkdir $@
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out/assets/%.ogg: assets/%.ogg | out/assets
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cp -ar assets/$*.ogg $@
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# Both the JS and WASM files are generated by the wasm-bindgen call, so both
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# get to be on the target half of this recipe.
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out/asteroids.js out/asteroids_bg.wasm.gz &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm | out
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wasm-bindgen --no-typescript --target web --out-dir ./out/ --out-name asteroids target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm
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gzip -9 -f out/asteroids_bg.wasm
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# Copies the index page to the output dir.
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out/index.html: www/index.html
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cp -a $< $@
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rm -f out/asteroids.html
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# Like `out/index.html`, but renames the page for use in a larger site.
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out/asteroids.html: www/index.html
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cp -a $< $@
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rm -f out/index.html
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# Clean the web build, but not the Cargo cache. Cargo handles it's own caching
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# and I don't want to obliterate it all the time.
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clean:
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rm -rf out/ asteroids_web_root.tar asteroids_web_root_standalone.tar
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# Delete everything, including the Cargo build cache. In case someone needs
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# this, I guess.
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full-clean: clean
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cargo clean
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# Installation goal. It's meant to be a helper utility for moving the built
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# output into the web root. Only supports the "bundle-able" mode.
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install: web
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install -dm0755 $(DESTDIR)
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install -m0644 out/asteroids.js $(DESTDIR)/
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install -m0644 out/asteroids_bg.wasm.gz $(DESTDIR)/
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install -m0644 out/asteroids.html $(DESTDIR)/
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