Simple script for viewing a file at a given commit/branch Github.com

git-open

#!/usr/bin/env ruby

usage_description = """Usage:
  github-open <commit> [<path> [<line-number>]]

Uses the <origin> remote's URL, and assumes that it's a Github repo.
"""

args = ARGV

if args.count == 0
  puts usage_description
  exit
end

commit = args[0]
repo_rel_path = if args[1]
     %x[git ls-tree --full-name --name-only HEAD #{args[1]}].gsub("\n", "")
   else
     nil
  end
line_number = (args[2] || nil)

remote = 'origin'
base_url = %x[git ls-remote --get-url|cut -d':' -f 2|cut -d'.' -f 1].gsub("\n", "")

url = "https://github.com/#{base_url}/tree/#{commit}"

if repo_rel_path
  url << "/#{repo_rel_path}"
end

if line_number
  url << "\#L#{line_number}"
end

%x[open #{url}]