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 Deployment of artifacts in an external SSH command
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 Jason van Zyl
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 12 October 2005
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Deployment of artifacts in an external SSH command

 In order to deploy artifacts using SSH you must first specify the use of an SSH server in the
 <<distributionManagement>> element of your POM as well as specifying an <<<extension>>> in your
 <<<build>>> element which will pull in the SSH artifacts required to deploy with SSH:

+----+

<project>
  <parent>
    <groupId>com.stchome</groupId>
    <artifactId>mavenFull</artifactId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.mycompany</groupId>
  <artifactId>my-app</artifactId>
  <packaging>jar</packaging>
  <version>1.1-SNAPSHOT</version>
  <name>Maven Quick Start Archetype</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <!-- Enabling the use of FTP -->
  <distributionManagement>
    <repository>
      <id>ssh-repository</id>
      <url>scpexe://repository.mycompany.com/repository</url>
    </repository>
  </distributionManagement>

  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.wagon</groupId>
         <artifactId>wagon-ssh-external</artifactId>
         <version>1.0-alpha-5</version>
      </extension>
    </extensions>
  </build>

</project>

+----+

 If you are deploying from Unix or have Cygwin installed you won't need to any additional configuration in your <<<settings.xml>>>
 file as everything will be taken from the environment. But if you are on Windows and are using something like <<<plink>>> then
 you will need something like the following:

+----+

<settings>
  ...
  <servers>
    <server>
      <id>ssh-repository</id>
      <username>your username in the remote system if different from local</username>
      <privateKey>/path/to/your/private/key</privateKey> <!-- not needed if using pageant -->
      <configuration>
        <sshExecutable>plink</sshExecutable>
        <scpExecutable>pscp</scpExecutable>
        <sshArgs>other arguments you may need</sshArgs>
      </configuration>
    </server>
  </servers>
  ...
</settings>

+----+

 You should, of course, make sure that you can login into the specified SSH server by hand before attempting the
 deployment with Maven. Once you have verified that everything is setup correctly you can now deploy your artifacts
 using Maven:

+----+

mvn deploy

+----+

 Sometimes you may have permissions problems deploying and if so you can set the file and directory permissions
 like so:

+----+

 <settings>
   ...
   <servers>
     <server>
       <id>ssh-repository</id>
       <!--
        |
        | Change default file/dir permissions
        |
        -->
       <filePermissions>664</filePermissions>
       <directoryPermissions>775</directoryPermissions>
       <configuration>
         <sshExecutable>plink</sshExecutable>
         <scpExecutable>pscp</scpExecutable>
       </configuration>
     </server>
   </servers>
   ...
 </settings>

+----+

 <<NOTE:>> If you are using Putty it will expect the private key to be in the <<<PPK>>> format and not the standard
 format so make sure you use <<<puttygen>>> to convert your openssh format key to <<<PPK>>> format or generate another
 one. Windows users can find the Putty tools {{{http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html}here}}.