Thanks for your question, Brian, I didn't know about the "else" parameter on <condition> before I checked that out. I generally learn from helping others. :-)
Rob > -----Original Message----- > From: Brian McCann [mailto:bmccan...@comcast.net] > Sent: Monday, June 06, 2011 3:02 PM > To: user@ant.apache.org > Cc: Echlin, Robert > Subject: RE: How change variable based on environment variable value > > Many thanks for your help :) > BPM > > -----Original Message----- > From: Echlin, Robert [mailto:robert.ech...@windriver.com] > Sent: Monday, June 06, 2011 1:51 PM > To: Brian McCann > Subject: RE: How change variable based on environment variable value > > > > -----Original Message----- > > From: Brian McCann [mailto:bmccan...@comcast.net] > > Sent: Monday, June 06, 2011 1:34 PM > > To: 'Ant Users List' > > Cc: Echlin, Robert > > Subject: RE: How change variable based on environment variable value > > > > Hi Robert, > > > > couple questions to make sure I'm following you right. > > > > 1. I'm currently setting the value of JOF in the > > build.userproperties file to " JOF=C:/Inetpub/wwwroot/wo30" > > and even if I try to run a conditional in the build.xml file > > < property name="JOF" value="F:/Inetpub/wwwroot/wo30"/> The > > value of JOF gets set in stone when build.xml runs? > > Build.properties files always override build.xml? > > Whatever gets set first stays set. Properties are immutable. > > > > > > > 2. Since I already have a file build.user.properties I could > > just set the default value of JOF path in that file like > > <property name="JOF" > > value="C:/Inetpub/wwwroot/wo30"/> which would be the state > > that the build file is not being run on the build box? > > No, a properties file is not an XML file. > The "build.user.properties" file would look like: > ---- two samples --- > # Set JOF for my computer > JOF=C:/Inetpub/wwwroot/wo30 > > -- OR -- > # Set values for my computer > JOF = C:/Inetpub/wwwroot/wo30 > Princelieness = 100 > > --- end samples -- > Notes about propertye files: > - Space around the "=" is ignored > - comment lines start with # > > > > > > so your code would look like: > > > > <?xml version="1.0" encoding="utf-8"?> > > <project name="plugin-rules" basedir="." default="setJOF"> > > <target name="setJOF"> > > <property environment="env"/> > > <echo>BUILD_BOX = ${env.BUILD_BOX}</echo> > > <condition property="JOF" value="F:/Inetpub/wwwroot/wo30"> > > <isset property="env.BUILD_BOX"/> > > </condition> > > <echo>JOF = ${JOF}</echo> > > > > <property file="build.user.properties" /> > > <echo>After Property file, JOF = ${JOF}</echo> > > </target> > > > > </project> > > Yuppers, you got it. > This would load the build.user.properties file after the check for the > BUILD_BOX variable. > > However, I would put this code VERY close to the top of the > build.xml file, > so that when you set other properties there, they are available early. > And of course, if you want to override them, you need to do > that before the > properties are loaded from the local users file. > :-) > > Anyway, you can use the pattern of setting the variable names > to a "default" > or "local" property name in the file, and then set the > correct one before > you use it, taking into account other info like the > "BUILD_BOX" environment > variable. > > Rob > > > > > Thanks, > > BPM > > > > > > -----Original Message----- > > From: Echlin, Robert [mailto:robert.ech...@windriver.com] > > Sent: Monday, June 06, 2011 12:46 PM > > To: Ant Users List > > Subject: RE: How change variable based on environment variable value > > > > Hi Brian, > > Try this code. > > Note: you can't put the default value of JOF into a file that > > will be loaded automatically when ant is run, such as > > (home)/.antrc, as that would set JOF before your code > > executes. First set works, last set fails. > > > > On the other hand, you could set "JOF_default" in a > > properties file that is loaded before this code is run, then > > have an "else" clause in your condition to use it when > > BUILD_BOX is not set in your environment: > > <condition property="JOF" value="F:/Inetpub/wwwroot/wo30" > > else="${JOF_default}"> > > > > Rob > > > > ------------ simplified code ---------- > > <?xml version="1.0" encoding="utf-8"?> > > <project name="plugin-rules" basedir="." default="setJOF"> > > <target name="setJOF"> > > <property environment="env"/> > > <echo>BUILD_BOX = ${env.BUILD_BOX}</echo> > > <condition property="JOF" value="F:/Inetpub/wwwroot/wo30"> > > <isset property="env.BUILD_BOX"/> > > </condition> > > <echo>JOF = ${JOF}</echo> > > > > <property file="jof.properties" /> > > <echo>After Property file, JOF = ${JOF}</echo> > > </target> > > > > </project> > > ---------------- output of test run - no build-run --------- > > C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant>set BUILD_BOX= > > > > C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant>echo %BUILD_BOX% %BUILD_BOX% > > > > C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant>ant -f jof-test.xml > > Buildfile: C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant\jof-test.xml > > > > setJOF: > > [echo] BUILD_BOX = ${env.BUILD_BOX} > > [echo] JOF = ${JOF} > > [echo] After Property file, JOF = C:/Inetpub/wwwroot/wo30 > > > > BUILD SUCCESSFUL > > Total time: 0 seconds > > ------------------------ output of test run with BUILD_RUN > > set in the environment --------- C:\Documents and > > Settings\rechlin\My Documents\test\TEST-ant>set BUILD_BOX=true > > > > C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant>echo %BUILD_BOX% true > > > > C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant>ant -f jof-test.xml > > Buildfile: C:\Documents and Settings\rechlin\My > > Documents\test\TEST-ant\jof-test.xml > > > > setJOF: > > [echo] BUILD_BOX = true > > [echo] JOF = F:/Inetpub/wwwroot/wo30 > > [echo] After Property file, JOF = F:/Inetpub/wwwroot/wo30 > > > > BUILD SUCCESSFUL > > Total time: 0 seconds > > -------------------------------------------------- > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: user-unsubscr...@ant.apache.org For > > additional commands, e-mail: user-h...@ant.apache.org > > > > = > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@ant.apache.org For additional commands, e-mail: user-h...@ant.apache.org
