Varnish VMOD static code analysis

I recently went looking for something similar to pep8/pylint when writing Varnish VMODs, and ended up with OCLint.

I can’t really speak to how good it is, but it catches the basic stuff I was interested in.

The documentation is mostly for cmake, so I’ll give a small tutorial for automake:

  • (download+install oclint to somewhere in $PATH)
  • apt-get install bear
  • cd libvmod-xxx
  • ./autogen.sh; ./configure –prefix=/usr
  • bear make # “build ear” == bear. writes compile_commands.json
  • cd src
  • oclint libvmod-xxx.c # profit
  • Which will tell you about unused variables, useless parentheses, dead code and so on.

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