GitHub actions (#2)

* Updated readme, enabled automatc testing

* Snapshot support

* Release CI support

Co-authored-by: Salomon BRYS <salomon@kodein.net>

jni/build.gradle.kts

@@ -49,12 +49,15 @@ sealed class Cross {
 val buildNativeJni by tasks.creating {
     group = "build"
 }
+val noCrossCompile: String? by project
 fun creatingBuildNativeJni(target: String, cross: Cross?) = tasks.creating(Exec::class) {
     group = "build"
     dependsOn(generateJniHeaders)
     dependsOn(":native:buildSecp256k1${target.capitalize()}")
     buildNativeJni.dependsOn(this)
 
+    if (noCrossCompile == "true") onlyIf { cross == null }
+
     inputs.files(projectDir.resolve("build.sh"))
     outputs.dir(buildDir.resolve("build/cmake/$target"))
 

jni/build.sh

@@ -15,6 +15,7 @@ JNI_HEADERS=$TARGET
 if [ "$TARGET" == "linux" ]; then
   OUTFILE=libsecp256k1-jni.so
   ADD_LIB=-lgmp
+  CC_OPTS="-fPIC"
 elif [ "$TARGET" == "darwin" ]; then
   OUTFILE=libsecp256k1-jni.dylib
   if [ -z "$CROSS_TRIPLE" ]; then
@@ -24,7 +25,7 @@ elif [ "$TARGET" == "mingw" ]; then
   OUTFILE=secp256k1-jni.dll
   CC=/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-gcc
   JNI_HEADERS=linux
-  CC_OPTS="-fpic"
+  CC_OPTS="-fPIC"
 fi
 
 mkdir -p build/jni/$TARGET