Respect JAVA_OPTS env variable in CLI tools. (#1478)

FAQ.md

@@ -19,3 +19,9 @@ It will produce platform-specific shared object (.so on Linux, .dylib on macOS a
 C language header, allowing to use all public APIs available in your Kotlin/Native program from C code.
 See `samples/python_extension` as an example of using such shared object to provide a bridge between Python and
 Kotlin/Native.
+
+Q: How do I run Kotlin/Native behind corporate proxy?
+
+A: As Kotlin/Native need to download platform specific toolchain, you need to specify
+`-Dhttp.proxyHost=xxx -Dhttp.proxyPort=xxx` as compiler's or `gradlew` arguments,
+or set it via `JAVA_OPTS` environment variable.

cmd/run_konan

@@ -68,7 +68,8 @@ java_opts=(-ea \
             -Xmx3G \
             "-Djava.library.path=${NATIVE_LIB}" \
             "-Dkonan.home=${KONAN_HOME}" \
-           -Dfile.encoding=UTF-8)
+            -Dfile.encoding=UTF-8 \
+            ${JAVA_OPTS})
 
 # Unset some environment variables which are set by XCode and may potentially affect the tool executed.
 for VAR in `cat "${KONAN_HOME}/tools/env_blacklist"`; do

cmd/run_konan.bat

@@ -72,7 +72,8 @@ set JAVA_OPTS=-ea ^
     -Xmx3G ^
     "-Djava.library.path=%NATIVE_LIB%" ^
     "-Dkonan.home=%_KONAN_HOME%" ^
-    -Dfile.encoding=UTF-8
+    -Dfile.encoding=UTF-8 ^
+    %JAVA_OPTS%
 
 set LIBCLANG_DISABLE_CRASH_RECOVERY=1