Performance: 'Minimal' layout mode (#369)

* Start adding benchmarking tooling

* Add reperf to devdeps

* Add bench lib

* Add LayoutMode style property

* Benchmark minimal layout mode

* Factor out dimensions to separate module, abstract the css measurements into Dimensions.t

* Refactor GameOfLife to be pixel-based

* Run a minimal layout strategy

* Tweaks

* Formatting

* Update lockfiles

* Add benchmark to build / hygiene checks

* Remove commented out code

.ci/esy-bench.yml

@@ -0,0 +1,9 @@
+# Run benchmarks
+
+steps:
+  - script: esy @bench install
+    displayName: 'esy @bench install'
+  - script: esy @bench build
+    displayName: 'esy @bench build'
+  - script: esy @bench x ReveryBench
+    displayName: 'esy @bench x ReveryBench'

.ci/esy-check-hygiene.yml

@@ -10,6 +10,10 @@ steps:
     displayName: 'esy install'
   - script: git diff --exit-code
     displayName: 'check that `esy.lock` is up-to-date. If this fails, commit `esy.lock` changes and re-submit PR.'
+  - script: esy @bench install
+    displayName: 'esy @bench install'
+  - script: git diff --exit-code
+    displayName: 'check that `bench.esy.lock` is up-to-date. If this fails, commit `bench.esy.lock` changes and re-submit PR.'
   - script: esy build
     displayName: 'esy build'
   - script: esy format

ReveryBench.opam

@@ -0,0 +1,7 @@
+opam-version: "1.2"
+version: "dev"
+maintainer: "bryphe@outlook.com"
+author: ["Bryan Phelps"]
+build: [
+
+]

azure-pipelines.yml

@@ -22,6 +22,7 @@ jobs:
   - template: .ci/use-node.yml
   - template: .ci/restore-build-cache.yml
   - template: .ci/esy-build-steps.yml
+  - template: .ci/esy-bench.yml
   - template: .ci/publish-release.yml
   - template: .ci/create-docs.yml
   - template: .ci/publish-build-cache.yml
@@ -65,6 +66,7 @@ jobs:
   - template: .ci/use-node.yml
   - template: .ci/restore-build-cache.yml
   - template: .ci/esy-build-steps.yml
+  - template: .ci/esy-bench.yml
   - template: .ci/publish-release.yml
   - template: .ci/publish-build-cache.yml
 
@@ -84,5 +86,6 @@ jobs:
   - template: .ci/use-node.yml
   - template: .ci/restore-build-cache.yml
   - template: .ci/esy-build-steps.yml
+  - template: .ci/esy-bench.yml
   - template: .ci/publish-release.yml
   - template: .ci/publish-build-cache.yml

bench.esy.lock/.gitattributes

@@ -0,0 +1,3 @@
+
+# Set eol to LF so files aren't converted to CRLF-eol on Windows.
+* text eol=lf

bench.esy.lock/.gitignore

@@ -0,0 +1,3 @@
+
+# Reset any possible .gitignore, we want all esy.lock to be un-ignored.
+!*