Handle relative pid folder correctly in the launch script

Previously, a relative PID folder was not handled correctly when
running stop, status, or force_reload. This meant that a service
could be started when configured to use a relative pid file, but
then could not be stopped.

The PID folder should be treated as relative to the service's jar
file. This commit updates stop, status, and force_reload to push the
jar file's directory so that this is now the case for those three
commands.

Closes gh-7092

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/java/org/springframework/boot/launchscript/SysVinitLaunchScriptIT.java

@@ -198,6 +198,18 @@ public class SysVinitLaunchScriptIT {
 		doLaunch("launch-with-use-of-start-stop-daemon-disabled.sh");
 	}
 
+	@Test
+	public void launchWithRelativePidFolder() throws Exception {
+		String output = doTest("launch-with-relative-pid-folder.sh");
+		assertThat(output).has(
+				coloredString(AnsiColor.GREEN, "Started [" + extractPid(output) + "]"));
+		assertThat(output).has(
+				coloredString(AnsiColor.GREEN, "Running [" + extractPid(output) + "]"));
+		assertThat(output).has(
+				coloredString(AnsiColor.GREEN, "Stopped [" + extractPid(output) + "]"));
+
+	}
+
 	private void doLaunch(String script) throws Exception {
 		assertThat(doTest(script)).contains("Launched");
 	}

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-multiple-java-opts.sh

@@ -1,6 +1,6 @@
 source ./test-functions.sh
-echo 'JAVA_OPTS="-Dserver.port=8081 -Dserver.context-path=/test"' > /spring-boot-app.conf
 install_service
+echo 'JAVA_OPTS="-Dserver.port=8081 -Dserver.context-path=/test"' > /test-service/spring-boot-app.conf
 start_service
 await_app http://127.0.0.1:8081/test/
 curl -s http://127.0.0.1:8081/test/

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-multiple-run-args.sh

@@ -1,6 +1,6 @@
 source ./test-functions.sh
-echo 'RUN_ARGS="--server.port=8081 --server.context-path=/test"' > /spring-boot-app.conf
 install_service
+echo 'RUN_ARGS="--server.port=8081 --server.context-path=/test"' > /test-service/spring-boot-app.conf
 start_service
 await_app http://127.0.0.1:8081/test/
 curl -s http://127.0.0.1:8081/test/

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-relative-pid-folder.sh

@@ -0,0 +1,10 @@
+source ./test-functions.sh
+mkdir ./pid
+install_service
+echo 'PID_FOLDER=./pid' > /test-service/spring-boot-app.conf
+start_service
+echo "PID: $(cat /test-service/pid/spring-boot-app/spring-boot-app.pid)"
+await_app
+curl -s http://127.0.0.1:8080/
+status_service
+stop_service

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-single-java-opt.sh

@@ -1,6 +1,6 @@
 source ./test-functions.sh
-echo 'JAVA_OPTS=-Dserver.port=8081' > /spring-boot-app.conf
 install_service
+echo 'JAVA_OPTS=-Dserver.port=8081' > /test-service/spring-boot-app.conf
 start_service
 await_app http://127.0.0.1:8081/
 curl -s http://127.0.0.1:8081/

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-single-run-arg.sh

@@ -1,6 +1,6 @@
 source ./test-functions.sh
-echo 'RUN_ARGS=--server.port=8081' > /spring-boot-app.conf
 install_service
+echo 'RUN_ARGS=--server.port=8081' > /test-service/spring-boot-app.conf
 start_service
 await_app http://127.0.0.1:8081/
 curl -s http://127.0.0.1:8081/

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/launch-with-use-of-start-stop-daemon-disabled.sh

@@ -1,7 +1,7 @@
 source ./test-functions.sh
 chmod -x $(type -p start-stop-daemon)
-echo 'USE_START_STOP_DAEMON=false' > /spring-boot-app.conf
 install_service
+echo 'USE_START_STOP_DAEMON=false' > /test-service/spring-boot-app.conf
 start_service
 await_app
 curl -s http://127.0.0.1:8080/

spring-boot-integration-tests/spring-boot-launch-script-tests/src/test/resources/scripts/test-functions.sh

@@ -1,7 +1,8 @@
 install_service() {
-  mv /spring-boot-launch-script-tests-*.jar /spring-boot-app.jar
+  mkdir /test-service
-  chmod +x /spring-boot-app.jar
+  mv /spring-boot-launch-script-tests-*.jar /test-service/spring-boot-app.jar
-  ln -s /spring-boot-app.jar /etc/init.d/spring-boot-app
+  chmod +x /test-service/spring-boot-app.jar
+  ln -s /test-service/spring-boot-app.jar /etc/init.d/spring-boot-app
 }
 
 start_service() {

spring-boot-tools/spring-boot-loader-tools/src/main/resources/org/springframework/boot/loader/tools/launch.script

@@ -145,7 +145,7 @@ start() {
 do_start() {
   working_dir=$(dirname "$jarfile")
   pushd "$working_dir" > /dev/null
-  mkdir "$PID_FOLDER" &> /dev/null
+  mkdir -p "$PID_FOLDER" &> /dev/null
   if [[ -n "$run_user" ]]; then
     checkPermissions || return $?
     if [[ -z "$pid_subfolder" ]]; then
@@ -180,6 +180,8 @@ do_start() {
 }
 
 stop() {
+  working_dir=$(dirname "$jarfile")
+  pushd "$working_dir" > /dev/null
   [[ -f $pid_file ]] || { echoYellow "Not running (pidfile not found)"; return 0; }
   pid=$(cat "$pid_file")
   isRunning "$pid" || { echoYellow "Not running (process ${pid}). Removing stale pid file."; rm -f "$pid_file"; return 0; }
@@ -202,6 +204,8 @@ restart() {
 }
 
 force_reload() {
+  working_dir=$(dirname "$jarfile")
+  pushd "$working_dir" > /dev/null
   [[ -f $pid_file ]] || { echoRed "Not running (pidfile not found)"; return 7; }
   pid=$(cat "$pid_file")
   rm -f "$pid_file"
@@ -211,6 +215,8 @@ force_reload() {
 }
 
 status() {
+  working_dir=$(dirname "$jarfile")
+  pushd "$working_dir" > /dev/null
   [[ -f "$pid_file" ]] || { echoRed "Not running"; return 3; }
   pid=$(cat "$pid_file")
   isRunning "$pid" || { echoRed "Not running (process ${pid} not found)"; return 1; }