Creating SVN Tag in Bash

In this post, I will show you an example bash script for creating svn tag.

First, if you would like to create tag on svn, you simply execute the following command.

svn copy 'source_url' 'tag_url'

Okay then, we simply call the above command in bash script.
I use revision number and time stamp as tag name.
Instead of using revision number, maybe you can prepare version number file and count up it when creating tag.

#!/bin/bash

SVN_USERNAME=dukesoftware
SVN_PASSWORD=some_password
SVN_INFO_COMMAND="svn info --username $SVN_USERNAME --password $SVN_PASSWORD --non-interactive"
SVN_COPY_COMMAND="svn copy --username $SVN_USERNAME --password $SVN_PASSWORD --non-interactive"

svn_project_trunk="http://somewhere.svn/project/trunk"

svn_project_base=${svn_project_trunk/trunk/}


# Getting revision from svn info command
# Need this line for displaying message of svn info command in English forcibly.
export LC_MESSAGES=C
revision=`$SVN_INFO_COMMAND $svn_project_trunk |grep '^Revision:' | sed -e 's/^Revision: //'`

timestamp=`date +%Y%m%d%H%M%S`

# Determine tag name - in this example, using revision + timestamp
tag_version="tags"/"r"$revision"_"$timestamp
svn_tag_url=$svn_project_base$tag_version

# Creating tag!!
echo "target tag url $svn_tag_url"
echo "creating tag from $svn_project_trunk ...."
`$SVN_COPY_COMMAND copy $svn_project_trunk $svn_tag_url -m 'Auto created by script'`
echo "tag created! - $svn_tag_url"

If you would like to know more details about subversion, you sould definitely read the following book.
The book covers almost all stuffs about subversion.