Support pipe and new line in the 'No proxy host'

README.md

@@ -188,7 +188,7 @@ If you're using a JFrog platform that's situated behind an HTTP/S proxy, you sho
 under `Manage Jenkins` > `Manage Plugins` > `Advanced`.
 
 To exclude the JFrog platform from going through a configured proxy, provide your JFrog platform's host details in
-the `No Proxy Host` section. This should be a list of comma-separated hosts.
+the `No Proxy Host` section.
 Notice that the JFrog CLI is typically downloaded from releases.jfrog.io. You may need to add that to your list as well.
 
 ## Jenkins Configuration as Code

src/main/java/io/jenkins/plugins/jfrog/CliEnvConfigurator.java

@@ -66,7 +66,7 @@ private static void setupProxy(EnvVars env) {
         env.put(HTTP_PROXY_ENV, proxyUrl);
         env.put(HTTPS_PROXY_ENV, proxyUrl);
         if (StringUtils.isNotBlank(proxyConfiguration.noProxy)) {
-            env.put(NO_PROXY, proxyConfiguration.noProxy);
+            env.put(NO_PROXY, createNoProxyValue(proxyConfiguration.noProxy));
         }
     }
 
@@ -79,4 +79,17 @@ private static void excludeProxyEnvFromPublishing(EnvVars env) {
         String jfrogCliEnvExclude = env.getOrDefault(JFROG_CLI_ENV_EXCLUDE, JFROG_CLI_DEFAULT_EXCLUSIONS);
         env.put(JFROG_CLI_ENV_EXCLUDE, String.join(";", jfrogCliEnvExclude, HTTP_PROXY_ENV, HTTPS_PROXY_ENV));
     }
+
+    /**
+     * Converts a list of No Proxy Hosts received by Jenkins into a semicolon-separated string format expected by JFrog CLI.
+     *
+     * @param noProxy - A string representing the list of No Proxy Hosts.
+     * @return A semicolon-separated string of No Proxy Hosts.
+     */
+    static String createNoProxyValue(String noProxy) {
+        // Trim leading and trailing spaces, Replace '|' with spaces and normalize whitespace
+        String noProxyListRemoveSpaceAndPipe = noProxy.trim().replaceAll("[\\s|]+", ";");
+        // Replace multiple semicolon with a single semicolon, and remove the last one if present
+        return noProxyListRemoveSpaceAndPipe.replaceAll(";+", ";").replaceAll("^;|;$", "");
+    }
 }

src/test/java/io/jenkins/plugins/jfrog/CreateNoProxyValueTest.java

@@ -0,0 +1,47 @@
+package io.jenkins.plugins.jfrog;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import static io.jenkins.plugins.jfrog.CliEnvConfigurator.createNoProxyValue;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author nathana
+ **/
+@RunWith(Parameterized.class)
+public class CreateNoProxyValueTest {
+    private final String noProxy;
+    private final String expectedResult;
+
+    public CreateNoProxyValueTest(String noProxy, String expectedResult) {
+        this.noProxy = noProxy;
+        this.expectedResult = expectedResult;
+    }
+
+    @Parameterized.Parameters
+    public static Collection<Object[]> dataProvider() {
+        return Arrays.asList(
+                new Object[]{"artifactory.jfrog.io", "artifactory.jfrog.io"},
+                new Object[]{"artifactory.jfrog.io    \n      artifactory1.jfrog.io          ", "artifactory.jfrog.io;artifactory1.jfrog.io"},
+                new Object[]{"   artifactory.jfrog.io    \n  \r     artifactory1.jfrog.io;artifactory2.jfrog.io    \n      artifactory3.jfrog.io | artifactory4.jfrog.io    \n      artifactory5.jfrog.io ", "artifactory.jfrog.io;artifactory1.jfrog.io;artifactory2.jfrog.io;artifactory3.jfrog.io;artifactory4.jfrog.io;artifactory5.jfrog.io"},
+                new Object[]{"\r\n", ""},
+                new Object[]{";;;", ""},
+                new Object[]{"artifactory.jfrog.io;", "artifactory.jfrog.io"},
+                new Object[]{"artifactory.jfrog.io;artifactory1.jfrog.io", "artifactory.jfrog.io;artifactory1.jfrog.io"},
+                new Object[]{"artifactory.jfrog.io;artifactory1.jfrog.io;artifactory2.jfrog.io;artifactory3.jfrog.io", "artifactory.jfrog.io;artifactory1.jfrog.io;artifactory2.jfrog.io;artifactory3.jfrog.io"},
+                new Object[]{"artifactory.jfrog.io   \nartifactory1.jfrog.io", "artifactory.jfrog.io;artifactory1.jfrog.io"},
+                new Object[]{"artifactory.jfrog.io \nartifactory1.jfrog.io\nartifactory2.jfrog.io  \n  artifactory3.jfrog.io", "artifactory.jfrog.io;artifactory1.jfrog.io;artifactory2.jfrog.io;artifactory3.jfrog.io"},
+                new Object[]{";artifactory.jfrog.io;", "artifactory.jfrog.io"}
+        );
+    }
+
+    @Test
+    public void createNoProxyValueTest() {
+        assertEquals(expectedResult, createNoProxyValue(noProxy));
+    }
+}