oe-deptools

A few scripts for working with Yocto/OpenEmbedded and Linux.

Installing

To install, clone the repo with git:

    git clone git://github.com/chbae/oe-deptools.git

You'll get a python script

• oey.py

You can copy the scripts to a standard location in your path or just run them specifying the full path everytime (./oy.py )

oey.py

Used to show dependencies for Yocto/OE packages.

Help

    $ ./oey.py -h

    Usage: ./oey.py [options] [package]

    Displays dependencies for a given package or recipe.
    Uses task-depends.dot for its raw data.
    Generate the *.dot files by running bitbake -g <recipe>.

    Options:
    -h      Show this help message and exit
    -v      Show error messages such as recursive dependencies
    -r      Show reverse dependencies, i.e. packages dependent on package
    -f      Flat output instead of default tree output
    -d <depth>      Maximum depth to follow dependencies, default and max is 10
    -i <input file path>    Input file path
    -s      Show child package dependencies that are already listed
    -n      Remove host(native) dependencies
            as direct parent dependencies.
    

    Provide a package name from the generated pn-depends.dot file.
    Run the program without a package name to get a list of
    available package names.

Generating Data

The oey.py script uses the dependency tree that bitbake generates with the --graphviz or -g option.

You can generate a dependency list for a particular package or a whole image at once. This doesn't take long even for an image recipe.

    ~/poky/build$ bitbake -g core-image-minimal

The following files will be generated in the build directory.

• task-depends.dot
• pn-buildlist

The oey.py script uses task-depends.dot for its data.

The script is hard-coded to look for the data file in the current working directory so you should run it from the directory where *.dot file is located.

Example

chbae@yocto:~/poky/build$ oey.py -d 2 openssl

Package [ openssl ] depends on
     gcc-cross-x86_64
             autoconf-native
             automake-native
             binutils-cross-x86_64
             flex-native
             gmp-native
             libmpc-native
             libtool-native
             linux-libc-headers
             mpfr-native
             texinfo-dummy-native
             zlib-native
     gcc-runtime
             autoconf-native
             automake-native
             libgcc
             libtool-native
             texinfo-dummy-native
     glibc
             autoconf-native
             automake-native
             bison-native
             gperf-native
             libgcc-initial
             libtool-native
             linux-libc-headers
             make-native
             texinfo-dummy-native
     opkg-utils
     perl-native
             gdbm-native
             perlcross-native
             zlib-native
     pseudo-native
             attr-native
             pkgconfig-native
             sqlite3-native


chbae@yocto:~/poky/build$ oey.py -r openssl

Package [ openssl ] is needed by
     curl
             elfutils
                     binutils
                     iproute2
             libmicrohttpd
                     elfutils
                             binutils
                             iproute2
     python3
             btrfs-tools
             libxml2
                     shared-mime-info
     socat