shell cleanup: auto set JDKx_HOME var

scripts/integration-test.sh

@@ -7,29 +7,14 @@ export TTL_CI_TEST_MODE=true
 source ./prepare-jdk.sh
 source ./common_build.sh "${1:-}"
 
-
 # default jdk 11, do build and test
 switch_to_jdk 11
 headInfo "test with Java 11: $JAVA_HOME"
 # run junit test in run-agent-test.sh
 runCmd ./scripts/run-agent-test.sh "${1:-}"
 
-
-java_home_var_names=(
-    JDK6_HOME
-    JDK7_HOME
-    JDK8_HOME
-
-    JDK9_HOME
-    JDK10_HOME
-
-    JDK12_HOME
-    JDK13_HOME
-    JDK14_HOME
-    JDK15_HOME
-)
-
 # test multi-version java home env
+# shellcheck disable=SC2154
 for jhm_var_name in "${java_home_var_names[@]}"; do
     export JAVA_HOME="${!jhm_var_name}"
 

scripts/prepare-jdk.sh

@@ -34,33 +34,40 @@ jdks_install_by_sdkman=(
     14.0.1-zulu
     15.ea.20-open
 )
+java_home_var_names=()
 
-export JDK6_HOME="${JDK6_HOME:-/usr/lib/jvm/java-6-openjdk-amd64}"
-export JDK7_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[0]}"
-export JDK8_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[1]}"
-export JDK9_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[2]}"
-export JDK10_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[3]}"
-export JDK11_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[4]}"
-export JDK12_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[5]}"
-export JDK13_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[6]}"
-export JDK14_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[7]}"
-export JDK15_HOME="$SDKMAN_CANDIDATES_DIR/java/${jdks_install_by_sdkman[8]}"
+exportJdkVarAndInstall() {
+    JDK6_HOME="${JDK6_HOME:-/usr/lib/jvm/java-6-openjdk-amd64}"
+    java_home_var_names=(JDK6_HOME)
 
+    local i
+    for (( i = 0; i < ${#jdks_install_by_sdkman[@]}; i++ )); do
+        local jdkVersion=$((i + 7))
+        local jdkNameOfSdkman="${jdks_install_by_sdkman[i]}"
+        local jdkHomePath="$SDKMAN_CANDIDATES_DIR/java/$jdkNameOfSdkman"
 
-switch_to_jdk() {
-    local javaHome="JDK${1}_HOME"
-    export JAVA_HOME=${!javaHome}
+        # export JDK7_HOME ~ JDK1x_HOME
+        local jdkHomeVarName="JDK${jdkVersion}_HOME"
+        eval "$jdkHomeVarName='${jdkHomePath}'"
+        java_home_var_names=("${java_home_var_names[@]}" "$jdkHomeVarName")
 
-    [ -n "$JAVA_HOME" ] || die "jdk $1 env not found: $javaHome"
-    [ -e "$JAVA_HOME" ] || die "jdk $1 not existed: $JAVA_HOME"
-    [ -d "$JAVA_HOME" ] || die "jdk $1 is not directory: $JAVA_HOME"
+        # install jdk by sdkman
+        if [ ! -d "$jdkHomePath" ]; then
+            runCmd sdk install java "$jdkNameOfSdkman" || die "fail to install jdk $jdkNameOfSdkman by sdkman"
+        fi
+    done
+
+    echo "prepare jdks: ${java_home_var_names[*]}"
+    ls -la "$SDKMAN_CANDIDATES_DIR/java/"
 }
+exportJdkVarAndInstall
 
 
-for _jdk__ in "${jdks_install_by_sdkman[@]}"; do
-    if [ ! -d "$SDKMAN_CANDIDATES_DIR/java/$_jdk__" ]; then
-        runCmd sdk install java "$_jdk__" || die "fail to install jdk $_jdk__"
-    fi
-done
+switch_to_jdk() {
+    local javaHomeVarName="JDK${1}_HOME"
+    export JAVA_HOME="${!javaHomeVarName}"
 
-ls -la "$SDKMAN_CANDIDATES_DIR/java/"
+    [ -n "$JAVA_HOME" ] || die "jdk $1 env not found: $javaHomeVarName"
+    [ -e "$JAVA_HOME" ] || die "jdk $1 not existed: $JAVA_HOME"
+    [ -d "$JAVA_HOME" ] || die "jdk $1 is not directory: $JAVA_HOME"
+}

scripts/run-agent-test.sh

@@ -8,13 +8,13 @@ source ./common_build.sh
 # do heavy operation first, descrease mvn operation count.
 runCmd mvnBuildJar
 
-blueEcho "Run unit test under ttl agent, include check for ExecutorService, ForkJoinPool"
+blueEcho 'Run unit test under ttl agent, include check for ExecutorService, ForkJoinPool'
 runCmd "${JAVA_CMD[@]}" -cp "$(getClasspathWithoutTtlJar)" \
     "-javaagent:$(getTtlJarPath)=ttl.agent.logger:STDOUT" \
     -Drun-ttl-test-under-agent=true \
     org.junit.runner.JUnitCore $(getJUnitTestCases)
 
-blueEcho "Run unit test under ttl agent, and turn on the disable inheritable for thread pool enhancement"
+blueEcho 'Run unit test under ttl agent, and turn on the disable inheritable for thread pool enhancement'
 runCmd "${JAVA_CMD[@]}" -cp "$(getClasspathWithoutTtlJar)" \
     "-javaagent:$(getTtlJarPath)=ttl.agent.logger:STDOUT,ttl.agent.disable.inheritable.for.thread.pool:true" \
     -Drun-ttl-test-under-agent=true \
@@ -26,7 +26,7 @@ runCmd "${JAVA_CMD[@]}" -cp "$(getClasspathWithoutTtlJar)" \
     "-javaagent:$(getTtlJarPath)=ttl.agent.logger:STDOUT" \
     com.alibaba.ttl.threadpool.agent.check.timer.TimerAgentCheck
 
-blueEcho "Run agent check for Timer/TimerTask, explicit "ttl.agent.enable.timer.task""
+blueEcho 'Run agent check for Timer/TimerTask, explicit "ttl.agent.enable.timer.task"'
 runCmd "${JAVA_CMD[@]}" -cp "$(getClasspathWithoutTtlJar)" \
     "-javaagent:$(getTtlJarPath)=ttl.agent.logger:STDOUT,ttl.agent.enable.timer.task:true" \
     com.alibaba.ttl.threadpool.agent.check.timer.TimerAgentCheck