# Setup your project. cd"my project in GOPATH" govendor init
# Add existing GOPATH files to vendor. govendor add +external
# View your work. govendor list
# Look at what is using a package govendor list -v fmt
# Specify a specific version or revision to fetch govendor fetch golang.org/x/net/context@a4bbce9fcae005b22ae5443f6af064d80a6f5a55 govendor fetch golang.org/x/net/context@v1 # Get latest v1.*.* tag or branch. govendor fetch golang.org/x/net/context@=v1 # Get the tag or branch named "v1".
# Update a package to latest, given any prior version constraint govendor fetch golang.org/x/net/context