Feature: Manual and auto classpath option

- Adding option to put additional class paths to the builder
- Adding option to get automatically the class path for jar files
(tested with Spring-Boot)

.gitignore

@@ -1,3 +1,4 @@
 fatjar/
 warped/
 TODO.md
+/.project

README.md

@@ -65,6 +65,8 @@ Options:
                        override JDK/JRE version
                        examples: "11", "11.0", "11.0.2", "11.0.2+9"
                        (default: 11)
+  -cp, --class-path    <classpath>
+                       adds additional classpaths to the jdeps call
   -o, --output         <directory>
                        override output directory;
                        this is relative to current PWD
@@ -81,6 +83,8 @@ Options:
   --pull               check if more recent JDK/JRE distro is available;
                        by default latest cached version that matches
                        "--java-version" is used
+  --spring-boot        extract from (Spring-Boot) jar the dependencies'
+                       to get the classpath for jdeps call'
   --linux              create binary for Linux
   --macos              create binary for macOS
   --windows            create binary for Windows

warp4j

@@ -11,6 +11,8 @@ function print_help {
     echo '                       override JDK/JRE version'
     echo '                       examples: "11", "11.0", "11.0.2", "11.0.2+9"'
     echo '                       (default: 11)'
+    echo '  -cp, --class-path    <classpath>'
+    echo '                       adds additional classpaths to the jdeps call'
     echo '  -o, --output         <directory>'
     echo '                       override output directory;'
     echo '                       this is relative to current PWD'
@@ -27,6 +29,8 @@ function print_help {
     echo '  --pull               check if more recent JDK/JRE distro is available;'
     echo '                       by default latest cached version that matches'
     echo '                       "--java-version" is used'
+    echo '  --spring-boot        extract from (Spring-Boot) jar the dependencies'
+    echo '                       to get the classpath for jdeps call'
     echo '  --linux              create binary for Linux'
     echo '  --macos              create binary for macOS'
     echo '  --windows            create binary for Windows'
@@ -104,6 +108,10 @@ while [[ $# -gt 0 ]]; do
         print_help
         exit
     ;;
+    -cp|--class-path)
+        CLASS_PATH="$2"
+        shift 2
+    ;;
     -j|--java-version)
         JAVA_VERSION="$2"
         JAVA_VERSION_OVERRIDEN=true
@@ -145,6 +153,10 @@ while [[ $# -gt 0 ]]; do
         JVM_OPTIONS="$2"
         shift 2
     ;;
+    --spring-boot)
+        SPRING_BOOT=true
+        shift
+    ;;
     -*|--*) # unsupported options
         fail_with "Unsupported option $1"
     ;;
@@ -369,6 +381,11 @@ fi
 JAVA_DOWNLOAD_PATH=$CACHE_PATH/$JAVA_DISTRO_TYPE/$JVM_IMPL
 BUNDLES_PATH=$CACHE_PATH/bundle # prepare bundles here
 
+# path for extracted jar (Spring-Boot) files
+EXTRACTED_JAR_PATH=$CACHE_PATH/app-jar # prepare bundles here
+mkdir -p ${EXTRACTED_JAR_PATH}
+trap 'rm -rf ${EXTRACTED_JAR_PATH}' EXIT
+
 DIR="$(pwd -P)" # execution directory path
 
 # final binaries created in WARPED_TEMP_PATH and then moved to WARPED_PATH
@@ -407,10 +424,10 @@ SETLOCAL
 SET "JAVA_DIST='"$BUNDLED_DISTRO_SUBDIR"'"
 SET "JAR='"$JAR_NAME"'.jar"
 
-SET "JAVA=%~dp0\%JAVA_DIST%\bin\java.exe"
+SET "JAVA=%~dp0\%JAVA_DIST%\bin\javaw.exe"
 SET "JAR_PATH=%~dp0\%JAR%"
 
-CALL %JAVA% '"$JVM_OPTIONS"' -jar %JAR_PATH% %*
+START %JAVA% '"$JVM_OPTIONS"' -jar %JAR_PATH% %*
 EXIT /B %ERRORLEVEL%
 ' 
 }
@@ -620,7 +637,21 @@ JDEPS=$JDK_PATH/bin/jdeps
 if [[ $JAVA_DISTRO_TYPE == $DISTRO_TYPE_JDK ]]; then
     echo "Analyzing dependencies..."
     # TODO check for errors
-    MODULES=$("$JDEPS" --print-module-deps "$JAR" | grep -v Warning)
+    # TODO If JAVA_VERSION is not an INT it will throw an error
+    if [ -n "$CLASS_PATH" ]
+    then
+    	echo "Using given classpaths: $CLASS_PATH"
+        MODULES=$("$JDEPS" -cp $CLASS_PATH --print-module-deps --ignore-missing-deps --multi-release $JAVA_VERSION_BASE "$JAR" | grep -v Warning)
+    elif [ "$SPRING_BOOT" ]
+    then
+    	echo "Extracting jar file to get classpath"
+    	unzip -q "${JAR}" -d "${EXTRACTED_JAR_PATH}"
+    	echo "Fetching modules"
+        MODULES=$("$JDEPS" -classpath \'${EXTRACTED_JAR_PATH}/BOOT-INF/lib/*:${EXTRACTED_JAR_PATH}/BOOT-INF/classes:${EXTRACTED_JAR_PATH}\' --print-module-deps --ignore-missing-deps --module-path ${EXTRACTED_JAR_PATH}/BOOT-INF/lib/javax.activation-api-1.2.0.jar --recursive --multi-release ${JAVA_VERSION_BASE} -quiet ${EXTRACTED_JAR_PATH}/org ${EXTRACTED_JAR_PATH}/BOOT-INF/classes ${EXTRACTED_JAR_PATH}/BOOT-INF/lib/*.jar | grep -v Warning)
+    else
+    	echo "Fetch modules with default behavior"
+        MODULES=$("$JDEPS" --print-module-deps --ignore-missing-deps --multi-release $JAVA_VERSION_BASE "$JAR" | grep -v Warning)
+    fi
 fi
 
 # creates minimized runtime for the platform