Scuttle: pre-update update

Scuttle is now working as intended for the standard use case. As described in the introductory post, for a C project with a standard layout, adding unit testing with Scuttle requires the following steps:

1. Install scuttle.h either locally to the project or in the system include path
2. Install scuttle.sh either locally to the project or somewhere on your $PATH
3. Add test suite source files under test/, each corresponding to a module of your project, named test_<module>.c, using Scuttle’s simple macros
4. Add a test target to your main Makefile as follows:

test:
    bash scuttle.sh test
    $(MAKE) -C test

Scuttle will generate test/Makefile, test/test_<module>.h and test/test_<module>_gen.h for each test/test_<module>.c suite, and the test/test_<project>.c harness; and the generated Makefile’s test target will build and run the test harness and pipe the output to test/log/test_<project>.log.

There’s a lot of room to make this more flexible and add some convenience features, but in terms of functionality it’s at MVP level now.

Tomorrow I’ll do a quick cleanup pass, make a few small tweaks I’ve already thought of, write some basic documentation, and actually push the code up to a public repo so if anyone’s interested in trying it out, it’ll be available.