go-repo.sh

#!/usr/bin/env bash
set -o pipefail

# Find the repo, fail if we're not in a git repo or the origin has a weird name.
# TODO: Add other kinds of version control
# TODO: Make the remote name configurable with git config
repo_dir=$(git rev-parse --show-toplevel)
[[ $? != 0 ]] && { echo "Not in a git directory!"; exit $?; }
origin=$(git remote -v | egrep '^origin.+\(fetch\)' | awk '{print $2}')
[[ $? != 0 ]] && { echo "Couldn't find an origin."; exit $?; }

# Convert the remote to a format go likes.
# TODO: Deal with other kinds of remotes (ie. bitbucket)
case ${origin} in
git@github.com:*)
  project_path=github.com/${origin#git@github.com:}
  ;;
https://github.com/*)
  project_path=${origin#https://}
  ;;
*)
  echo "Unknown origin type: ${origin}"
  exit 1
  ;;
esac
# No matter what, remove the trailing .git
project_path=${project_path%.git}

# TODO: Configurable gopath directory name, for if you want to vendor it or something like that?
gopath=${repo_dir}/.gopath
[[ -d ${gopath}/src/$(dirname ${project_path}) ]] || mkdir -p ${gopath}/src/$(dirname ${project_path})
[[ -L ${gopath}/src/${project_path} ]]            || ln -s ${repo_dir} ${gopath}/src/${project_path}

# Double check the symlink goes to the right place.
[[ $(readlink ${gopath}/src/${project_path}) == ${repo_dir} ]] || { echo "Incorrect symlink in ${gopath}/src/${project_path}"; exit $?; }

# make sure go isn't aliased in this context
unalias go >/dev/null 2>&1

export GOPATH=${gopath}:${GOPATH}
# TODO: This should probably be configurable, it might not make sense for all projects.
export GOBIN=${repo_dir}/bin
go "$@"