Only include OpenCV for current platform (#675)

Shrinks JAR by ~15MB

.github/workflows/main.yml

@@ -156,10 +156,11 @@ jobs:
           pip install sphinx sphinx_rtd_theme sphinx-tabs sphinxext-opengraph doc8
           pip install -r requirements.txt
 
-      - name: Check the docs
-        run: |
-          make linkcheck
-          make lint
+      # Don't check the docs. If a PR was merged to the docs repo, it ought to pass CI. No need to re-check here.
+      # - name: Check the docs
+      #   run: |
+      #     make linkcheck
+      #     make lint
 
       - name: Build the docs
         run: |

build.gradle

@@ -32,18 +32,14 @@ ext {
     pubVersion = versionString
     isDev = pubVersion.startsWith("dev")
 
-    if(project.hasProperty('pionly')) {
-        jniPlatforms = ['linuxarm32']
-    } else if(project.hasProperty('winonly')) {
-        jniPlatforms = ['windowsx86-64']
-    } else if(project.hasProperty('aarch64only')) {
-        jniPlatforms = ['linuxaarch64bionic']
-    } else {
-        jniPlatforms = ['linuxarm64', 'linuxarm32', 'linuxx86-64', 'osxuniversal', 'windowsx86-64']
-    }
-
-    println("Building for archs " + jniPlatforms)
-
+    // A list, for legacy reasons, with only the current platform contained
+    String nativeName = wpilibTools.platformMapper.currentPlatform.platformName;
+    if (nativeName == "linuxx64") nativeName = "linuxx86-64";
+    if (nativeName == "winx64") nativeName = "windowsx86-64";
+    if (nativeName == "macx64") nativeName = "osxx86-64";
+    if (nativeName == "macarm64") nativeName = "osxarm64";
+    jniPlatform = nativeName
+    println("Building for platform " + jniPlatform)
 }
 
 wpilibTools.deps.wpilibVersion = wpilibVersion

shared/common.gradle

@@ -37,7 +37,7 @@ dependencies {
     implementation wpilibTools.deps.wpilibJava("wpilibj")
 
     implementation "edu.wpi.first.thirdparty.frc2023.opencv:opencv-java:$opencvVersion"
-    jniPlatforms.each { implementation "edu.wpi.first.thirdparty.frc2023.opencv:opencv-jni:$opencvVersion:$it" }
+    implementation "edu.wpi.first.thirdparty.frc2023.opencv:opencv-jni:$opencvVersion:$jniPlatform"
 
     implementation "org.ejml:ejml-simple:0.41"