Difference between revisions of "Fiji/Build System"
Revision as of 09:52, 1 October 2008
Fake is Fiji's build system (Fiji's mAKE). Its goal is to make it extremely simple to define the tasks that are needed for Fiji.
Fake finds its targets in a file called Fakefile. An example Fakefile looks like this:
all <- example.jar another-example.jar example.jar <- example/**/*.java README LICENSE another-example.jar <- SomeClass.java
This file defines three targets: the default target called 'all', and two targets building .jar files. The operation is defined implicitly by the name of the target.
The Fakefile contains rules for targets that are defined in the following form:
target <- prerequisites
If a prerequisite is also the target of another rule, Fake builds that target before building the current one.
If you have a working Fiji launcher, you can call Fake like this:
If your Fiji launcher does not work, but you have a working Java, call Fake like this:
java -jar precompiled/fake.jar
The following target types are available:
- The all target
- The first target in the Fakefile is always the default target. It lists all subtargets that are to be made by default.
- .jar targets
- If the target name ends with .jar, a .jar is made. If the last prerequisite also ends in .jar, Fake will copy that file instead of trying to compile .java files.
- Fake is actually quite clever when it comes to putting the compiled classes into the .jar files; it figures out in which package the class lives, and uses the corresponding path.
- .class targets
- Targets whose name end in .class compile a single .java file (the last prerequisite is used to define that), and copies the resulting .class file (and the other generated classes that are used by this class) to the given destination.
- .cxx and '.c' targets
- If the last prerequisite ends in .cxx or .c, the GNU C compiler is called to compile the prerequisites.
- "SubFake" targets
- If the last prerequisite specifies a directory, Fake looks for a Fakefile or a Makefile there. According to what was found, Fake or make is called, and the target is copied over to the given destination.
- Special targets
- Some targets are predefined, but can be overridden in the Fakefile. These include clean, show-vars and others.
- Remove all generated targets. This target is not well tested. Use with care.
- Show all defined variables
- Show all rules (with expanded variables)
- Instead of building the targets, this target just shows which targets are not up to date and would be built.