Add api for available backup list and add .idea in gitignore

.gitignore

@@ -1,6 +1,7 @@
 /target
-/.settings
-/.classpath
-/.project
+/.settings
+/.classpath
+/.project
 /work
 *~
+/.idea/

pom.xml

@@ -1,10 +1,11 @@
+
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
-        <groupId>org.jenkins-ci.plugins</groupId>
-        <artifactId>plugin</artifactId>
-        <version>3.43</version>
-    </parent>
+		<groupId>org.jenkins-ci.plugins</groupId>
+		<artifactId>plugin</artifactId>
+		<version>3.43</version>
+	</parent>
 
 	<groupId>org.jvnet.hudson.plugins</groupId>
 	<artifactId>thinBackup</artifactId>
@@ -17,27 +18,27 @@
 			<name>GPLv3</name>
 			<distribution>repo</distribution>
 			<comments>
-    Copyright (C) 2011  Matthias Steinkogler, Thomas Fürer
+				Copyright (C) 2011  Matthias Steinkogler, Thomas Fürer
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+				This program is free software: you can redistribute it and/or modify
+				it under the terms of the GNU General Public License as published by
+				the Free Software Foundation, either version 3 of the License, or
+				(at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+				This program is distributed in the hope that it will be useful,
+				but WITHOUT ANY WARRANTY; without even the implied warranty of
+				MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+				GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see http://www.gnu.org/licenses.</comments>
+				You should have received a copy of the GNU General Public License
+				along with this program.  If not, see http://www.gnu.org/licenses.</comments>
 		</license>
 	</licenses>
 	<!-- get every artifact through maven.glassfish.org, which proxies all the
 		artifacts that we need -->
 
 	<description>
-    Backs up the most important global and job specific configuration files.
+		Backs up the most important global and job specific configuration files.
 	</description>
 	<url>https://github.com/jenkinsci/thin-backup-plugin</url>
 
@@ -106,13 +107,18 @@
 			<version>3.3.0</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.jenkins-ci.plugins.pipeline-stage-view</groupId>
+			<artifactId>pipeline-rest-api</artifactId>
+			<version>2.10</version>
+		</dependency>
 	</dependencies>
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<jenkins.version>1.651.3</jenkins.version>
 		<java.level>8</java.level>
-<!-- 		<jenkins-test-harness.version>2.13</jenkins-test-harness.version> -->
+		<!-- 		<jenkins-test-harness.version>2.13</jenkins-test-harness.version> -->
 	</properties>
 
 	<build>
@@ -165,4 +171,4 @@
 			</plugin>
 		</plugins>
 	</build>
-</project>
+</project>

src/main/java/org/jvnet/hudson/plugins/thinbackup/ThinBackupMgmtLink.java

@@ -16,6 +16,18 @@
  */
 package org.jvnet.hudson.plugins.thinbackup;
 
+import com.cloudbees.workflow.util.ServeJson;
+import hudson.Extension;
+import hudson.model.ManagementLink;
+import hudson.model.TaskListener;
+import jenkins.model.Jenkins;
+import jenkins.util.Timer;
+import org.jvnet.hudson.plugins.thinbackup.restore.HudsonRestore;
+import org.jvnet.hudson.plugins.thinbackup.utils.Utils;
+import org.kohsuke.stapler.QueryParameter;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.StaplerResponse;
+
 import java.io.File;
 import java.io.IOException;
 import java.text.ParseException;
@@ -25,18 +37,6 @@
 import java.util.concurrent.TimeUnit;
 import java.util.logging.Logger;
 
-import org.jvnet.hudson.plugins.thinbackup.restore.HudsonRestore;
-import org.jvnet.hudson.plugins.thinbackup.utils.Utils;
-import org.kohsuke.stapler.QueryParameter;
-import org.kohsuke.stapler.StaplerRequest;
-import org.kohsuke.stapler.StaplerResponse;
-
-import hudson.Extension;
-import hudson.model.ManagementLink;
-import hudson.model.TaskListener;
-import jenkins.model.Jenkins;
-import jenkins.util.Timer;
-
 /**
  * A backup solution for Hudson. Backs up configuration files from Hudson and its jobs.
  *
@@ -174,9 +174,14 @@ public ThinBackupPluginImpl getConfiguration() {
     return ThinBackupPluginImpl.getInstance();
   }
 
+  @ServeJson
   public List<String> getAvailableBackups() {
     final ThinBackupPluginImpl plugin = ThinBackupPluginImpl.getInstance();
     return Utils.getBackupsAsDates(new File(plugin.getExpandedBackupPath()));
   }
 
+  @ServeJson
+  public List<String> doAvailableBackups(){
+    return getAvailableBackups();
+  }
 }