Symlink Go packages into local project directory.

go-env

#!/usr/bin/env sh

# Setup Go environment.
#
# source ~/local/bin/go-env

# http://superuser.com/questions/39751/add-directory-to-path-if-its-not-already-there
__util_env_path_prepend() {
  if [ -d "$1" ] && [[ ":$PATH:" != *":$1:"* ]]; then
    PATH="$1:$PATH"
  fi
}

# Don't put GOPATH in my project directory.
#
# See go-ln and symlink in your go projects with more suitable (shorter) names
# and less directory traversal.
#
# I like a flat project repository structure.
#
# ~/projects/
#   shanna-foo/
#   shanna-bar/
#
# $ git clone github.com/shanna/bar shanna-bar
# $ go-ln github.com/shanna/bar shanna-bar
#
if [ -x "$HOME/local/go/bin/go" ]; then
  mkdir -p "$HOME/go/src $HOME/go/pkg $HOME/go/bin"
  export GOROOT="$HOME/local/go"
  export GOPATH="$HOME/go"
  __util_env_path_prepend "$HOME/local/go/bin"
  __util_env_path_prepend "$HOME/go/bin"
  GO_VERSION=$(go version | cut -f3 -d' ')
  echo "❤ go ${GO_VERSION}"
elif [ `which go` ]; then
  GO_VERSION=$(go version | cut -f3 -d' ')
  echo "✗ go, fallback to system go ${GO_VERSION}"
fi

# Cleanup if sourced.
unset -f __util_env_path_prepend

go-install

#!/usr/bin/env bash
set -e

# https://golang.org/dl

version=go1.6.1
release="${version}.linux-amd64.tar.gz"
if [ "$(uname)" == "Darwin" ]; then
  release="${version}.darwin-amd64.tar.gz"
fi

mkdir -p ~/local
if [ -x "$GOROOT/bin/go" ]; then
  GO_VERSION=$(go version | cut -f3 -d' ')
  echo "✗ go ${GO_VERSION} already in path $GOROOT"
else
  wget -q --no-check-certificate https://storage.googleapis.com/golang/$release -O $release
  tar -C ~/local -xzf $release
  rm $release
  GOROOT=~/local/go
  GO_VERSION=$($GOROOT/bin/go version | cut -f3 -d' ')
  echo "❤ go ${GO_VERSION} installed in path ~/local/go"
fi

go-ln

#!/usr/bin/env sh
set -e

main() {
  if [ $# -ne 2 ]; then
    cat <<-USAGE
usage: goln [remote] [local]

Symlink GOPATH package to local directory. Handy if you have an existing
development folder structure and you don't want Go packages messing it
up.

example:
  echo \$GOPATH
  #=> /home/shanna/go
  pwd -P
  #=> /home/shanna/projects
  goln github.com/shanna/some-package some-package
  #=> /home/shanna/go/src/github.com/shanna/some-package -> /home/shanna/projects/some-package
USAGE
    exit 0;
  fi

  if [ "$GOPATH" == "" ]; then
    echo "No \$GOPATH set."
    exit 1
  fi

  local=$2
  remote=$GOPATH/src/$1

  mkdir -p $local
  local=$(cd $local && pwd -P)

  mkdir -p $(dirname $remote)
  ln -sfhv $local $remote
}

main "$@"

👍 Updated.