See these pages for more details on how to install Subversion:
https://help.ubuntu.com/lts/serverguide/subversion.html
https://help.ubuntu.com/community/Subversion

Prerequisites:

• Install Apache Maven
• Install Apache HTTP Server
• Install Nexus Repository Manager

Run the following command to install Subversion:

$ sudo apt install subversion subversion-tools libapache2-mod-svn

Verify the version of Subversion:

$ svnserve --version
svnserve, version 1.9.7 (r1800392)
   compiled Mar 28 2018, 08:49:13 on x86_64-pc-linux-gnu
...

Create a local directory that will hold the SVN repository:

$ sudo mkdir /data /data/subversion /data/subversion/repositories /data/subversion/repositories/myproject
# $ sudo mkdir -p /data/subversion/repositories/myproject

$ sudo chmod -R 775 /data/subversion/
$ sudo chown -R mtitek:mtitek /data/subversion/

You should replace mtitek:mtitek with your actual user/group names.

Run the following command "svnadmin create" to create the SVN repository:

$ svnadmin create /data/subversion/repositories/myproject

Verify that the SVN repository is created:

$ svn info file://localhost/data/subversion/repositories/myproject
Path: myproject
URL: file://localhost/data/subversion/repositories/myproject
Relative URL: ^/
Repository Root: file://localhost/data/subversion/repositories/myproject
...

$ ls -1 /data/subversion/repositories/myproject
conf
db
format
hooks
locks
README.txt

Create a local directory that will hold the SVN project structure:

$ sudo mkdir /data/svn /data/svn/mtitek-svn-test /data/svn/mtitek-svn-test/trunk /data/svn/mtitek-svn-test/branches /data/svn/mtitek-svn-test/tags

$ sudo chmod -R 775 /data/svn/mtitek-svn-test/
$ sudo chown -R mtitek:mtitek /data/svn/mtitek-svn-test/

Run the following command "svn import" to create the SVN project structure:

$ svn import /data/svn/mtitek-svn-test file://localhost/data/subversion/repositories/myproject/mtitek-svn-test -m "Initial creation of 'mtitek-svn-test'"
Adding         /data/svn/mtitek-svn-test/branches
Adding         /data/svn/mtitek-svn-test/tags
Adding         /data/svn/mtitek-svn-test/trunk
Committing transaction...
Committed revision 1.

Verify that the SVN folders are created:

$ svn ls file://localhost/data/subversion/repositories/myproject/mtitek-svn-test
branches/
tags/
trunk/

Notes: You can also use the following path "file:///data/subversion/repositories/myproject/mtitek-svn-test"

Create a local directory that will hold the maven project:

$ sudo mkdir /data/workspace

$ sudo chmod -R 755 /data/workspace/
$ sudo chown -R mtitek:mtitek /data/workspace/

Run the following command "mvn archetype:generate" to create the maven project:

$ cd /data/workspace/

$ mvn archetype:generate \
-DarchetypeGroupId=org.apache.maven.archetypes \
-DarchetypeArtifactId=maven-archetype-quickstart \
-DarchetypeVersion=1.4 \
-DgroupId=mtitek.svn.test \
-DartifactId=mtitek-svn-test-a \
-Dpackage=mtitek.svn.test \
-Dversion=1.0.0-SNAPSHOT \
-DinteractiveMode=false

Commit the maven project to SVN:

$ svn import /data/workspace/mtitek-svn-test-a \
file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a \
-m "Initial creation of 'mtitek-svn-test-a'"

Verify that the project is commited:

$ svn ls file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a/
pom.xml
src/

Checkout the project from SVN:

$ rm -rf /data/workspace/mtitek-svn-test-a

$ svn co file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a/ /data/workspace/mtitek-svn-test-a

Add the scm configuration to "pom.xml" file:

$ cd /data/workspace/mtitek-svn-test-a/
$ vi pom.xml

<scm>
    <connection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</connection>
    <developerConnection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</developerConnection>
    <url>file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</url>
</scm>

Commit the modifications to SVN:

$ svn ci -m "Adding scm configuration"

Create a new branch:

$ mvn release:branch \
-DbranchName="mtitek-svn-test-a-branch-1.0.1-SNAPSHOT" \
-DreleaseVersion="1.0.1-SNAPSHOT" \
-DupdateBranchVersions=true \
-DupdateWorkingCopyVersions=false \
-DautoVersionSubmodules=true

Verify that the new branch is created:

$ svn ls file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/branches/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT
pom.xml
src/

Checkout the new branch:

$ cd /data/workspace
$ svn co file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/branches/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT /data/workspace/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT

Verify the project version and the scm configuration in the "pom.xml":

$ cd /data/workspace/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT
$ vi pom.xml

<version>1.0.1-SNAPSHOT</version>

<scm>
    <connection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/branches/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT</connection>
    <developerConnection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/branches/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT</developerConnection>
    <url>file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/branches/mtitek-svn-test-a-branch-1.0.1-SNAPSHOT</url>
</scm>

Before you start this section, please note that you might get this error if run the command mvn release:perform:

[INFO] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project mtitek-svn-test-a: Deployment failed: repository element was not specified in the POM inside distributionManagement element or in -DaltDeploymentRepository=id::layout::url parameter -> [Help 1]

This might happen if your Nexus or equivalent repository manager is not configured, or your maven project doesn't have a distribution management element. See this page for more details on how to configure Nexus: Nexus Repository Manager

Run the following commands to release the project:

• Go to "mtitek-svn-test-a" project:
  

  $ cd /data/workspace/mtitek-svn-test-a

  
  
• Configure the "pom.xml" file of the project "mtitek-svn-test-a".
  Add a "distributionManagement" element to configure the nexus repositories Snapshots and Releases:
  

  $ vi pom.xml

  <distributionManagement>
      <snapshotRepository>
          <id>httpNexusSnapshots</id>
          <name>Snapshots repository</name>
          <url>http://localhost:8081/repository/maven-snapshots</url>
      </snapshotRepository>
  
      <repository>
          <id>httpNexusReleases</id>
          <name>Releases repository</name>
          <url>http://localhost:8081/repository/maven-releases</url>
      </repository>
  </distributionManagement>

  
  Commit the modifications to SVN:
  

  $ svn ci -m "Adding nexus repositories configuration"

  
  
• Run "mvn versions:use-releases" command:
  

  $ mvn versions:use-releases -DgenerateBackupPoms=false -DexcludeReactor=true

  
  
• Run "mvn release:prepare" command:
  

  $ mvn release:prepare -DautoVersionSubmodules=true

  
  

  ...
  What is the release version for "mtitek-svn-test-a"? (mtitek.svn.test:mtitek-svn-test-a) 1.0.0: :
  What is SCM release tag or label for "mtitek-svn-test-a"? (mtitek.svn.test:mtitek-svn-test-a) mtitek-svn-test-a-1.0.0: :
  What is the new development version for "mtitek-svn-test-a"? (mtitek.svn.test:mtitek-svn-test-a) 2.0.1-SNAPSHOT: :
  ...

  
  Verify the project version in the "pom.xml" file:
  

  <version>1.0.1-SNAPSHOT</version>

  
  Verify the project version in the "pom.xml.releaseBackup" file:
  

  <version>1.0.0-SNAPSHOT</version>

  
  
• Run "mvn release:perform" command:
  

  $ mvn release:perform

  
  

  [INFO] [INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ mtitek-svn-test-a ---
  
  [INFO] Uploaded to httpNexusReleases: http://localhost:8081/repository/maven-releases/mtitek/svn/test/mtitek-svn-test-a/1.0.0/mtitek-svn-test-a-1.0.0.jar
  
  [INFO] Uploaded to httpNexusReleases: http://localhost:8081/repository/maven-releases/mtitek/svn/test/mtitek-svn-test-a/1.0.0/mtitek-svn-test-a-1.0.0.pom
  
  [INFO] Uploaded to httpNexusReleases: http://localhost:8081/repository/maven-releases/mtitek/svn/test/mtitek-svn-test-a/maven-metadata.xml
  
  [INFO] Uploaded to httpNexusReleases: http://localhost:8081/repository/maven-releases/mtitek/svn/test/mtitek-svn-test-a/1.0.0/mtitek-svn-test-a-1.0.0-sources.jar
  
  [INFO] Uploaded to httpNexusReleases: http://localhost:8081/repository/maven-releases/mtitek/svn/test/mtitek-svn-test-a/1.0.0/mtitek-svn-test-a-1.0.0-javadoc.jar

  
  Verify that the released component was deployed to Nexus:
  
  
  

Verify that the new release is created:

$ svn ls file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0
pom.xml
src/

Checkout the new release:

$ cd /data/workspace

$ svn co file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0 /data/workspace/mtitek-svn-test-a-1.0.0

Verify the project version and the scm configuration in the 'pom.xml':

$ cd /data/workspace/mtitek-svn-test-a-1.0.0
$ vi pom.xml

<version>1.0.0</version>

<scm>
    <connection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0</connection>
    <developerConnection>scm:svn:file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0</developerConnection>
    <url>file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0</url>
</scm>

Run the following command (svnadmin dump) to backup the SVN repository:

$ sudo mkdir /data/subversion_dump/

$ sudo chmod -R 775 /data/subversion_dump/
$ sudo chown -R mtitek:mtitek /data/subversion_dump/

$ cd /data/subversion/repositories/myproject

$ svnadmin dump . --incremental > /data/subversion_dump/dump-incremental
* Dumped revision 0.
* Dumped revision 1.
* Dumped revision 2.
...

Run the following command (svn delete) to delete a project from SVN:

$ svn delete -m "Deleting project 'mtitek-svn-test-a-1.0.0'" file://localhost/data/subversion/repositories/myproject/mtitek-svn-test/tags/mtitek-svn-test-a-1.0.0

See this page for more details on how to install and configure Apache HTTP Server: Install Apache HTTP Server

Configure Apache httpd to allow access to Subversion repositories:

$ sudo vi /etc/apache2/sites-available/000-default.conf

Add the following inside "VirtualHost" element:

<Location /svn>
    DAV svn
    SVNParentPath /data/subversion/repositories
    SVNListParentPath On
    AuthType Basic
    AuthName "Subversion Repository"
    AuthUserFile /etc/subversion/passwd
    Require valid-user
</Location>

Configure a username/password to enforce authentication:

$ sudo htpasswd -c /etc/subversion/passwd svnmtitek
New password:
Re-type new password:
Adding password for user svnmtitek

Enable the 'dav_svn' apache module (if not already enabled):

$ sudo a2enmod dav_svn
Considering dependency dav for dav_svn:
Enabling module dav.
Enabling module dav_svn.
To activate the new configuration, you need to run:
  service apache2 restart

Create a new group 'subversion':

$ sudo addgroup subversion
$ sudo adduser www-data subversion
$ sudo adduser mtitek subversion

$ sudo chown -R mtitek:subversion /data/subversion/

Restart Apache:

$ sudo service apache2 restart

Verify that the http protocol is working:

$ svn ls http://localhost/svn/myproject/mtitek-svn-test --username svnmtitek
Authentication realm: <http://localhost:80> Subversion Repository
Password for 'svnmtitek': *********

branches/
tags/
trunk/

You can use the browser: http://localhost/svn/myproject/mtitek-svn-test/

Modify the 'pom.xml' file:

$ cd /data/workspace/mtitek-svn-test-a
$ vi pom.xml

<scm>
    <connection>scm:svn:http://localhost/svn/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</connection>
    <developerConnection>scm:svn:http://localhost/svn/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</developerConnection>
    <url>http://localhost/svn/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a</url>
</scm>

Commit the modifications to SVN:

$ svn ci -m "Updating scm connection to use http protocol"

Checkout the project:

$ rm -rf /data/workspace/mtitek-svn-test-a
$ cd /data/workspace

$ svn co http://localhost/svn/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a/ /data/workspace/mtitek-svn-test-a

Verify the SVN information:

$ cd /data/workspace/mtitek-svn-test-a

$ svn info
Path: .
Working Copy Root Path: /data/workspace/mtitek-svn-test-a
URL: http://localhost/svn/myproject/mtitek-svn-test/trunk/mtitek-svn-test-a
Relative URL: ^/mtitek-svn-test/trunk/mtitek-svn-test-a
Repository Root: http://localhost/svn/myproject
...

List Subversion installed packages:

$ apt list --installed | grep subversion

Uninstall Subversion:

$ sudo apt remove subversion

Uninstall Subversion and its dependencies:

$ sudo apt remove --auto-remove subversion