In a Subversion utility I had to the get the revision number of the HEAD of the current working copy. An answer found gave a Linux command line solution. Here is my Groovy version.
Groovy allows the ability to execute a String. This returns a Process instance, we wait for its termination, and then we query the process for the return code, the output to stderr, and to stdout.
Below I take the output and stick it into a Properties object, then dump the entries. Of course, in practice I will be using the Properties in the solution (should have used a Map).
def command = ['svn','info','-rHEAD']
def proc = command.execute()
proc.waitFor()
int code = proc.exitValue()
if(code != 0){
println "code: '${code}'"
println "stderr: ${proc.err.text}"
return
}
def props = new Properties()
proc.in.eachLine{
def m = (it =~ /^(.*?):(.*)$/)
if(m){
def matches = m[0]
def key = matches[1].trim()
def value = matches[2].trim()
props.put(key,value)
}else{
println 'Could not parse the output of svn info'
}
}
println 'Properties ...'
props.each{
println "[${it.key}]=[${it.value}]"
}
Example output
Note: The brackets were added to provide a visual test of output, they are not stored. Also, the content was manually changed.
Properties ... [Last Changed Date]=[201.............pr 2014)] [Last Changed Rev]=[737] [Path]=[Widget] [Repository UUID]=[ec14......b668719305] [Revision]=[744] [Relative URL]=[^/widget/branches/skunk] [Repository Root]=[https://widget/svn/widget] [Last Changed Author]=[alfred e. newman] [URL]=[https://widget/svn/widget/branches/skunk] [Node Kind]=[directory]
Example error output
On error the output would be something like:
code: '1' stderr: svn: E155007: 'C:\temp' is not a working copy
Via SvnAnt?
An alternative is to use the svnant Ant task. This task has a subcommand ‘WcVersion’. It didn’t work for me.
Ant example is shown below, but you could of use the AntBuilder in Ant.
<target name="svn-info" depends="" description="- svn project info">
<svn username="${svn.username}" password="${svn.password}">
<wcversion path=".." prefix="svn" />
</svn>
</target>
Update
SvnAnt’s info command can be used to get this information. See http://subclipse.tigris.org/svnant/svntask.html#info
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