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svn-http.rst
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|svn| With Write Over HTTP

To use |svn| with read/write support over the |svn| HTTP protocol, you have to configure the HTTP |svn| backend.

Prerequisites

  • Enable HTTP support inside the admin VCS settings on your |RCE| instance
  • You need to install the following tools on the machine that is running an instance of |RCE|: Apache HTTP Server and mod_dav_svn.

Tip

We recommend using Wandisco repositories which provide latest SVN versions for most platforms. Here is an example how to add the Wandisco repositories for Ubuntu.

$ sudo sh -c 'echo "deb http://opensource.wandisco.com/ubuntu `lsb_release -cs` svn19" >> /etc/apt/sources.list.d/subversion19.list'
$ sudo wget -q http://opensource.wandisco.com/wandisco-debian.gpg -O- | sudo apt-key add -
$ sudo apt-get update

Here is an example how to add the Wandisco repositories for Centos/Redhat. Using a yum config

[wandisco-Git]
name=CentOS-6 - Wandisco Git
baseurl=http://opensource.wandisco.com/centos/6/git/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://opensource.wandisco.com/RPM-GPG-KEY-WANdisco

Example installation of required components for Ubuntu platform:

$ sudo apt-get install apache2
$ sudo apt-get install libapache2-mod-svn

Once installed you need to enable dav_svn on Ubuntu:

$ sudo a2enmod dav_svn
$ sudo a2enmod headers
$ sudo a2enmod authn_anon

Example installation of required components for RedHat/CentOS platform:

$ sudo yum install httpd
$ sudo yum install subversion mod_dav_svn

Once installed you need to enable dav_svn on RedHat/CentOS:

sudo vi /etc/httpd/conf.modules.d/10-subversion.conf
## The file should read:

LoadModule dav_svn_module     modules/mod_dav_svn.so
LoadModule headers_module     modules/mod_headers.so
LoadModule authn_anon_module  modules/mod_authn_anon.so

Configuring Apache Setup

Tip

It is recommended to run Apache on a port other than 80, due to possible conflicts with other HTTP servers like nginx. To do this, set the Listen parameter in the /etc/apache2/ports.conf file, for example Listen 8090.

Warning

Make sure your Apache instance which runs the mod_dav_svn module is only accessible by |RCE|. Otherwise everyone is able to browse the repositories or run subversion operations (checkout/commit/etc.).

It is also recommended to run apache as the same user as |RCE|, otherwise permission issues could occur. To do this edit the /etc/apache2/envvars

export APACHE_RUN_USER=rhodecode
export APACHE_RUN_GROUP=rhodecode
  1. To configure Apache, create and edit a virtual hosts file, for example :file:`/etc/apache2/sites-enabled/default.conf`. Below is an example how to use one with auto-generated config `mod_dav_svn.conf` from configured |RCE| instance.
<VirtualHost *:8090>
    ServerAdmin rhodecode-admin@localhost
    DocumentRoot /var/www/html
    ErrorLog ${'${APACHE_LOG_DIR}'}/error.log
    CustomLog ${'${APACHE_LOG_DIR}'}/access.log combined
    LogLevel info
    # allows custom host names, prevents 400 errors on checkout
    HttpProtocolOptions Unsafe
    Include /home/user/.rccontrol/enterprise-1/mod_dav_svn.conf
</VirtualHost>

  1. Go to the :menuselection:`Admin --> Settings --> VCS` page, and enable :guilabel:`Proxy Subversion HTTP requests`, and specify the :guilabel:`Subversion HTTP Server URL`.

  2. Open the |RCE| configuration file, :file:`/home/{user}/.rccontrol/{instance-id}/rhodecode.ini`

  3. Add the following configuration option in the [app:main] section if you don't have it yet.

    This enables mapping of the created |RCE| repo groups into special |svn| paths. Each time a new repository group is created, the system will update the template file and create new mapping. Apache web server needs to be reloaded to pick up the changes on this file. To do this, simply configure svn.proxy.reload_cmd inside the .ini file. Example configuration:

############################################################
### Subversion proxy support (mod_dav_svn)               ###
### Maps RhodeCode repo groups into SVN paths for Apache ###
############################################################
## Enable or disable the config file generation.
svn.proxy.generate_config = true
## Generate config file with `SVNListParentPath` set to `On`.
svn.proxy.list_parent_path = true
## Set location and file name of generated config file.
svn.proxy.config_file_path = %(here)s/mod_dav_svn.conf
## Used as a prefix to the <Location> block in the generated config file.
## In most cases it should be set to `/`.
svn.proxy.location_root = /
## Command to reload the mod dav svn configuration on change.
## Example: `/etc/init.d/apache2 reload`
svn.proxy.reload_cmd = /etc/init.d/apache2 reload
## If the timeout expires before the reload command finishes, the command will
## be killed. Setting it to zero means no timeout. Defaults to 10 seconds.
#svn.proxy.reload_timeout = 10

This would create a special template file called `mod_dav_svn.conf`. We used that file path in the apache config above inside the Include statement. It's also possible to manually generate the config from the :menuselection:`Admin --> Settings --> VCS` page by clicking a Generate Apache Config button.

  1. Now only things left is to enable svn support, and generate the initial configuration.
    • Select Proxy subversion HTTP requests checkbox
    • Enter http://localhost:8090 into Subversion HTTP Server URL
    • Click the Generate Apache Config button.

This config will be automatically re-generated once an user-groups is added to properly map the additional paths generated.

Using |svn|

Once |svn| has been enabled on your instance, you can use it with the following examples. For more |svn| information, see the Subversion Red Book

# To clone a repository
svn checkout http://my-svn-server.example.com/my-svn-repo

# svn commit
svn commit