maximize parallel builds in CI (#7206)

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
     - name: cmake
       run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release .
     - name: build
-      run: make -j4
+      run: make -j
     - name: test
       run: ./flattests
     - name: make flatc executable
@@ -147,7 +147,7 @@ jobs:
    - name: set up flatc
      run: |
        cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
-       make
+       make -j
        echo "${PWD}" >> $GITHUB_PATH
    - name: build
      working-directory: android
@@ -162,7 +162,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: cmake
-      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release . && make -j4
+      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release . && make -j
     - name: Generate
       run: scripts/check_generate_code.py
     - name: Generate gRPC
@@ -177,7 +177,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: cmake
-      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_CXX_FLAGS="-Wno-unused-parameter -fno-aligned-new" -DFLATBUFFERS_BUILD_BENCHMARKS=ON -DCMAKE_BUILD_TYPE=Release . && make -j4
+      run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_CXX_FLAGS="-Wno-unused-parameter -fno-aligned-new" -DFLATBUFFERS_BUILD_BENCHMARKS=ON -DCMAKE_BUILD_TYPE=Release . && make -j
     - name: Run benchmarks
       run: ./flatbenchmark --benchmark_repetitions=5 --benchmark_display_aggregates_only=true --benchmark_out_format=console --benchmark_out=benchmarks/results_${{matrix.cxx}}
     - name: Upload benchmarks results
@@ -261,7 +261,7 @@ jobs:
     - uses: actions/checkout@v2
     - name: flatc
       # FIXME: make test script not rely on flatc
-      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j4
+      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
     - name: test
       working-directory: tests
       run: bash GoTest.sh
@@ -296,7 +296,7 @@ jobs:
           sdk: stable
       - name: flatc
         # FIXME: make test script not rely on flatc
-        run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j4
+        run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
       - name: test
         working-directory: tests
         run: bash DartTest.sh

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-name: CIFuzz
+name: OSS-Fuzz
 on: 
   pull_request:
     branches:

android/gradle.properties

@@ -19,3 +19,5 @@ android.useAndroidX=true
 android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
+# Use parallel builds
+org.gradle.parallel=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -4,3 +4,5 @@ distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
+# Use parallel builds
+org.gradle.parallel=true

kotlin/gradle/wrapper/gradle-wrapper.properties

@@ -7,3 +7,5 @@ zipStorePath=wrapper/dists
 kotlin.mpp.stability.nowarn=true
 # Needed to share source among different targets
 kotlin.mpp.enableGranularSourceSetsMetadata=true
+# Use parallel builds
+org.gradle.parallel=true