README.adoc

Unbreq — Detector of unused BuildRequires of RPM builds.

Building

This project requires librpm.

To compile, simply run:

make all

Usage

Note	This project is in a very early stage.

In order to use it from mock builds:

1. build the project

   make -j8

2. place the compiled library and the program somewhere into the buildroot (for example into /usr/local/lib64)

   cp -t /var/lib/mock/fedora-rawhide-x86_64/root/usr/local/lib64 target/*

3. edit the .spec file

   1. use LD_PRELOAD immediately after the %setup of %prep, the %build and the %check (if present) build step

      %prep
      %setup -q ...
      export LD_PRELOAD="/usr/local/lib64/libunbreq.so:${LD_PRELOAD}"
      ...
      
      %build
      export LD_PRELOAD="/usr/local/lib64/libunbreq.so:${LD_PRELOAD}"
      ...
      
      %check
      export LD_PRELOAD="/usr/local/lib64/libunbreq.so:${LD_PRELOAD}"
      ...

   2. at the end of the %check step, manually execute the compiled program

      %check
      ...
      /usr/local/lib64/resolve

4. after building, you can see the output, for example:

   ...
   [INFO] Installation successful
   ...
   + /usr/local/lib64/resolve
   warning: BuildRequires asciidoc is not needed
   ...

TODO

Transitive Requires of BuildRequires.