Thank you for the suggestion. It seems to work. I do not understand why my previous snippet worked. If java used srcdir=“.” as the root of a package tree, then why did it compile files in a and b as top level classes? (The files in a and b did not declare a package.)
Alan > On Dec 20, 2023, at 10:02 PM, ilya Basin <basini...@gmail.com> wrote: > > Alan. I never used srcpath before and after some trial and error I feel that > the source of the problem is bad description of the option in JDK. > Ant passes srcpath directly to JDK's javac (unlike srcdir which Ant itself > searches for java files). > > The description says "Specify" or "Specifies", but it actually "overrides" > the default. And the default is current dir ".". > The other important thing the short description doesn't mention is javac > won't compile all source files in srcpath, but only those needed by > explicitly listed source files. > So by default javac will look in the current dir for source files needed to > compile explicitly listed source files. > > You probably want all sources in "a" and "b" to be compiled so you shouldn't > use srcpath for them. > > Finally, javac does not accept fileset as <src> or srcdir. In your example > "p" was consisting of java files and it was wasn't failing for you because it > was used as srcpath and srcpath was never scanned by javac because all needed > sources were found in srcdir. > > Ant docs could be better too. I wasn't able to find examples of <src > refid=.../> on the site. > > Please try my variant: > > <?xml version="1.0" encoding="UTF-8"?> > > <project name="test" default="t" basedir="."> > > <path id="p"> > <path path="a"/> > <path path="b"/> > </path> > > <target name="t"> > <javac> > <src refid="p"/> > </javac> > </target> > > </project> > > > > > -------- Original Message -------- > From: Alan Snyder [mailto:contagiousarrow...@cbfiddle.com] > Sent: Wednesday, December 20, 2023 at 23:37 UTC > To: Ant Users List > Subject: javac task question > > > This actually does what I want: > > <?xml version="1.0" encoding="UTF-8"?> > > <project name="test" default="t" basedir="."> > > <path id="p"> > <fileset dir="a"/> > <fileset dir="b"/> > </path> > > <target name="t"> > <javac srcdir="." sourcepathref="p"/> > </target> > > </project> > > The problem is that I don’t really want to specify srcdir, but if I leave it > out, the build fails (see below). > I would need to create a fake directory to use as srcdir to be sure that I > don’t accidentally compile unwanted sources. > > > Apache Ant(TM) version 1.10.14 compiled on August 16 2023 > Trying the default build file: build.xml > Buildfile: /Users/alan/testAnt1/build.xml > Detected Java version: 21 in: > /Library/Java/JavaVirtualMachines/jdk-21.0.1.jdk/Contents/Home > Detected OS: Mac OS X > parsing buildfile /Users/alan/testAnt1/build.xml with URI = > file:/Users/alan/testAnt1/build.xml > Project base dir set to: /Users/alan/testAnt1 > parsing buildfile > jar:file:/Users/alan/.ant/lib/vbuilder-ant-uber-1.0-SNAPSHOT.jar!/org/apache/tools/ant/antlib.xml > with URI = > jar:file:/Users/alan/.ant/lib/vbuilder-ant-uber-1.0-SNAPSHOT.jar!/org/apache/tools/ant/antlib.xml > from a zip file > parsing buildfile > jar:file:/usr/local/ant/lib/ant.jar!/org/apache/tools/ant/antlib.xml with URI > = jar:file:/usr/local/ant/lib/ant.jar!/org/apache/tools/ant/antlib.xml from a > zip file > Build sequence for target(s) `t' is [t] > Complete build sequence is [t, ] > > t: > > BUILD FAILED > /Users/alan/testAnt1/build.xml:11: either srcdir or modulesourcepath > attribute must be set! > at org.apache.tools.ant.taskdefs.Javac.checkParameters(Javac.java:1309) > at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1080) > at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:299) > at > java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) > at java.base/java.lang.reflect.Method.invoke(Method.java:580) > at > org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99) > at org.apache.tools.ant.Task.perform(Task.java:350) > at org.apache.tools.ant.Target.execute(Target.java:449) > at org.apache.tools.ant.Target.performTasks(Target.java:470) > at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401) > at org.apache.tools.ant.Project.executeTarget(Project.java:1374) > at > org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) > at org.apache.tools.ant.Project.executeTargets(Project.java:1264) > at org.apache.tools.ant.Main.runBuild(Main.java:818) > at org.apache.tools.ant.Main.startAnt(Main.java:223) > at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284) > at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101) > > Total time: 0 seconds > > > On Dec 19, 2023, at 10:17 PM, Jaikiran Pai <jaiki...@apache.org> wrote: > > Hello Alan, > > It's hard to say what's going on. Do you have a build file (or a snippet) to > show what issue you are running into? > > Which version of Java and Ant is this showing up on? > > -Jaikiran > > On 18/12/23 1:44 am, Alan Snyder wrote: > I know of a couple of ways to run javac on more than one source tree. > > One way is to use nested src elements. > > Another way is like this: > > srcdir="${src}:${src2}” > > I would like to generalize this solution to a dynamicly determined list of > source trees. > > I thought that I could use srcpath for this purpose, but the task would fail > if srcdir was not specified or it did not identify a valid directory. > That restriction defeats my purpose. > > Is there a solution? > > Is the inability to use srcpath by itself a bug? > > Thank you. > > > --------------------------------------------------------------------- > 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 > > > > > > --------------------------------------------------------------------- > 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
