Initial GraalVM configuration

README.md

@@ -82,6 +82,20 @@ dependencies. If you have a recent gradle version installed, you can replace `./
 
         ./gradlew distTar
 
+### Building a native binary with GraalVM
+
+It is possible to build a native binary with [GraalVM](https://www.graalvm.org).
+
+1. [Install GraalVM and setup the enviroment](https://www.graalvm.org/docs/getting-started/#install-graalvm)
+2. [Install prerequisites](https://www.graalvm.org/reference-manual/native-image/#prerequisites)
+2. Execute Gradle:
+
+        ./gradle nativeImage
+  
+   The binary is available at
+
+        build/native-image/signal-cli
+
 ## Troubleshooting
 If you use a version of the Oracle JRE and get an InvalidKeyException you need to enable unlimited strength crypto. See https://stackoverflow.com/questions/6481627/java-security-illegal-key-size-or-default-parameters for instructions.
 

build.gradle

@@ -1,6 +1,9 @@
-apply plugin: 'java'
-apply plugin: 'application'
-apply plugin: 'eclipse'
+plugins {
+    id 'java'
+    id 'application'
+    id 'eclipse'
+    id 'org.mikeneck.graalvm-native-image' version 'v1.0.0'
+}
 
 sourceCompatibility = JavaVersion.VERSION_11
 targetCompatibility = JavaVersion.VERSION_11
@@ -24,6 +27,27 @@ dependencies {
     implementation 'org.slf4j:slf4j-simple:1.7.30'
 }
 
+nativeImage {
+  mainClass = mainClassName
+  executableName = 'signal-cli'
+  arguments(
+    "--no-fallback",
+    "--allow-incomplete-classpath",
+    "--report-unsupported-elements-at-runtime",
+    "--enable-url-protocols=http,https",
+    "--enable-https",
+    "--enable-all-security-services",
+    "-J-Djavax.net.ssl.trustStore=/root/graalvm-ce-java11-20.3.0/lib/security/cacerts",
+    "-J-Djavax.net.ssl.trustAnchors=/root/graalvm-ce-java11-20.3.0/lib/security/cacerts",
+    "-J-Djavax.net.ssl.trustStorePassword=changeit",
+    "-Djavax.net.ssl.trustStore=/root/graalvm-ce-java11-20.3.0/lib/security/cacerts",
+    "-Djavax.net.ssl.trustAnchors=/root/graalvm-ce-java11-20.3.0/lib/security/cacerts",
+    "-Djavax.net.ssl.trustStorePassword=changeit",
+    "-H:ResourceConfigurationFiles=graalvm-config-dir/resource-config.json",
+    "-H:ReflectionConfigurationFiles=graalvm-config-dir/reflect-config.json"
+  )
+}
+
 jar {
     manifest {
         attributes(

graalvm-config-dir/resource-config.json

@@ -0,0 +1,11 @@
+{
+  "resources":{
+  "includes":[
+    {"pattern":"com/google/i18n/phonenumbers/data/.*"}, 
+    {"pattern":"libzkgroup.so"},
+    {"pattern":"org/asamk/signal/manager/ias.store"}, 
+    {"pattern":"org/asamk/signal/manager/whisper.store"}, 
+    {"pattern":"org/slf4j/impl/StaticLoggerBinder.class"}
+  ]},
+  "bundles":[{"name":"net.sourceforge.argparse4j.internal.ArgumentParserImpl"}]
+}