Run ninja build before tests (rescript-lang#5470)

* Run ninja build before tests * Separate ninja stuff into multiple steps

Author: cknitt

.github/workflows/ci.yml

@@ -57,6 +57,17 @@ jobs:
  env:
  RESCRIPT_FORCE_REBUILD: 1
 
+ - name: ninja config
+ if: runner.os != 'Windows'
+ run: opam exec -- node ./scripts/ninja.js config
+
+ - name: ninja build
+ if: runner.os != 'Windows'
+ run: opam exec -- node ./scripts/ninja.js build
+
+ - name: Check for changes in lib folder
+ run: git diff --exit-code lib/js lib/es6
+
  - name: Run tests
  if: runner.os != 'Windows'
  run: opam exec -- node scripts/ciTest.js -all
@@ -65,13 +76,6 @@ jobs:
  if: runner.os == 'Windows'
  run: opam exec -- node scripts/ciTest.js -mocha -theme
 
- - name: Ensure lib/js and lib/es6 are up to date
- if: runner.os != 'Windows'
- run: |
- opam exec -- node ./scripts/ninja.js config
- opam exec -- node ./scripts/ninja.js build
- git diff --exit-code lib/js lib/es6
-
  - name: Get artifact info
  id: get_artifact_info
  run: node .github/workflows/get_artifact_info.js