I am writing a build script in Phing and want to have an if statement which tests for the existence of any files with a given extension in a directory (.sql files in this case). I have tried to do this with <available>
as shown below, with no luck (the <then>
never gets executed. Anyone have any ideas?
<if>
<available file="${build.pendingsql}/*" type="file" extension="sql" />
<then>
<!-- Do stuff -->
</then>
</if>
You can do something like that (tweak it to your exact needs, ls runs in current drectory):
<?xml version="1.0" encoding="UTF-8"?>
<project name="test" default="check">
<target name="check">
<exec checkreturn="true" command="ls *.sql" outputProperty="list"/>
<if>
<equals arg1="${list}" arg2="" />
<then>
<echo msg="not found"/>
</then>
<else>
<echo msg="found ${list}"/>
</else>
</if>
</target>
</project>
On my mac I ended up using the following:
<!-- Are there sql files in pending -->
<exec checkreturn="false" dir="${build.pendingsql}" command="ls *.sql" outputProperty="list"/>
<echo msg="${list}"/>
<if>
<equals arg1="${list}" arg2="ls: *.sql: No such file or directory" />
<then>
<echo msg="No SQL patches found"/>
</then>
<else>
<echo msg="SQL patches found"/>
</else>
</if>
The major changes from the solution posted by Bolek are checkreturn needs to be false to account for ls exiting >0 and changing the equals test to "ls: *.sql: No such file or directory". I realise this is a little hacky and might break (based on languages/systems outputing a different "No such.." message) but it works for me.
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