Use brotli_static with max brotli compression

Compress with brotli ahead of time in CI, just like we do with zopfli
for gzip_static

Update hintrc to check for brotli compression.

Update lighthouse config to throttle CPU some more since brotli
decompression can be heavier.

.build.yml

@@ -2,7 +2,8 @@
 image: alpine/edge
 packages:
   - rsync
-  - zopfli
+  - zopfli  # for max compression with gzip_static
+  - brotli  # for max compression with brotli_static
   - git  # for Hugo's gitInfo
   - make
   - npm  # for testing with lighthouse and webhint

.hintrc

@@ -34,17 +34,7 @@
 			}
 		],
 		"doctype": "error",
-		"http-compression": [
-			"warning",
-			{
-				"html": {
-					"brotli": false
-				},
-				"resource": {
-					"brotli": false
-				}
-			}
-		],
+		"http-compression": "error",
 		"https-only": "error",
 		"manifest-file-extension": "error",
 		"manifest-is-valid": "error",

.lighthouserc.yml

@@ -56,7 +56,7 @@ ci:
         - offline-start-url
         - offscreen-images
       throttling:
-        cpuSlowdownMultiplier: 3.4  # seems about right on builds.sr.ht
+        cpuSlowdownMultiplier: 4.2  # seems about right on builds.sr.ht
       throttlingMethod: devtools
     url:
       - https://staging.seirdy.one/

Makefile

@@ -63,10 +63,13 @@ test: lint-css hint-devserver check-links
 .PHONY: build
 build: hugo
 # gzip_static + max zopfli compression
-ifndef NO_GZIP_STATIC
+ifndef NO_STATIC
 	find $(OUTPUT_DIR) -type f -name '*.html' -o -name '*.css' -o -name '*.xml' -o -name '*.txt' -o -name '*.asc' -o -name '*.webmanifest' \
 		| grep -v gemini \
 		| xargs zopfli --i$(ZOPFLI_ITERATIONS) --gzip
+	find $(OUTPUT_DIR) -type f -name '*.html' -o -name '*.css' -o -name '*.xml' -o -name '*.txt' -o -name '*.asc' -o -name '*.webmanifest' \
+		| grep -v gemini \
+		| xargs brotli -q 11
 endif
 
 

README.md

@@ -20,7 +20,8 @@ To build:
 - Hugo 0.75 or later
 - Make
 - Git (Hugo uses Git info for features like date last updated)
-- Zopfli (optional; set `NO_GZIP_STATIC=1` to disable)
+- Zopfli (optional; set `NO_STATIC=1` to disable)
+- Brotli (optional; set `NO_STATIC=1` to disable)
 - POSIX utils: grep, find, etc.
 
 To deploy: