File README.packager of Package racer

# Updating this package

1. Install cargo and cargo-vendor from devel:languages:rust

2. Clone the wanted version of the package and archive it

    git clone https://github.com/phildawes/racer
    cd cargo
    git checkout -b packaged-version 1.2.5
    git archive --format=tar --prefix=racer-1.2.5/ HEAD | xz >racer-1.2.5.tar.xz

3. Generate the vendor package

    cargo vendor
    tar c vendor/ | xz > vendor.tar.xz

3. Update the OBS package with these .tar.xz archives.