Echo linebreak to file using Phing on Windows

问题

In my build script I'm trying to output the date and SVN revision number to a file in the build directory. I would like the date and revision number on separate line, but can't get a linebreak to output to the file. I've tried all sorts of methods:

    <echo file="${build.dir}\build.txt">DATE = ${DATE} \r\n \\\r\\\n PHP_EOL</echo>
    <echo msg="DATE: ${DATE} \r\n \\\r\\\n PHP_EOL 0x0D0A SVN revision: ${svn.lastrevision} . PHP_EOL" file="${build.dir}\build.txt" append="true" />

Has anyone else managed to get a linebreak through to file with Phing? I've looked at the code in phing, and it uses fwrite. I can only guess the strings in my build.xml are getting escaped in some way before being handled by fwrite?

I guess I may have to resort to using ExecTask?

回答1:

You can make use of ${line.separator}, see Built-In PropertiesDocs.

<echo msg="DATE: ${DATE}${line.separator}SVN revision: ${svn.lastrevision}${line.separator}" file="${build.dir}\build.txt" append="true" />

来源：https://stackoverflow.com/questions/6995019/echo-linebreak-to-file-using-phing-on-windows