Created
December 1, 2011 18:51
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A tool to display all branches that have dependancies in your repository and list out what branches have been merged and are therefore dependancies.
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| #!/usr/bin/env ruby | |
| begin | |
| require 'rainbow' | |
| rescue LoadError | |
| module Rainbow | |
| def color(color) | |
| self | |
| end | |
| def background(color) | |
| self | |
| end | |
| end | |
| String.send(:include, Rainbow) | |
| end | |
| class Branch | |
| def self.branches | |
| @@branches ||= Hash[ | |
| `git branch -r`.split("\n") | |
| .map { |x| x.strip } | |
| .select { |x| x !~ /\bmaster\b/ } | |
| .map { |x| [x, Branch.new(x)] } | |
| ] | |
| end | |
| def initialize(base_name) | |
| @base_name = base_name.strip | |
| end | |
| def base_name | |
| @base_name | |
| end | |
| def name | |
| @name ||= @base_name.gsub(/^(heads|head|origin|remotes\/[^\/]+)\//, '').strip | |
| end | |
| def dependancies | |
| @dependancies ||= branch_dependancies | |
| end | |
| def description | |
| @description ||= `git log origin/master..#{base_name} --format="%B"` | |
| end | |
| def rev_list | |
| @rev_list ||= extract_rev_list(`git rev-list #{base_name} --not origin/master --format="%H"`) | |
| end | |
| def master_merge_base | |
| @master_merge_base ||= `git merge-base origin/master #{base_name}`.strip | |
| end | |
| def merge_base(branch) | |
| `git merge-base #{branch.base_name} #{base_name}`.strip | |
| end | |
| def behind(branch) | |
| extract_rev_list(`git rev-list #{branch.base_name} --not #{base_name}`).count | |
| end | |
| private | |
| def branch_dependancies | |
| Branch.branches.select do |name, branch| | |
| if branch.base_name.eql?(base_name) | |
| false | |
| else | |
| if !rev_list.member?(merge_base(branch)) | |
| false | |
| else | |
| #!master_merge_base.eql?(merge_base(branch)) | |
| !((rev_list - branch.rev_list).empty?) && !(description.scan(branch.name).empty?) | |
| end | |
| end | |
| end | |
| end | |
| def extract_rev_list(data) | |
| data.split("\n") | |
| .select { |x| x !~ /^commit / } | |
| .map { |x| x.gsub(/commit /, '').split(' ').last.strip } | |
| end | |
| end | |
| puts "Branch dependancies:" | |
| Branch.branches.each do |name, branch| | |
| if !branch.dependancies.empty? | |
| puts " #{name}".color(:yellow) | |
| branch.dependancies.map do |sub_name, sub_branch| | |
| behind = branch.behind(sub_branch) | |
| color = :green | |
| if behind > 0 | |
| color = :red | |
| end | |
| puts " #{sub_branch.name}".color(color) | |
| end | |
| puts "" | |
| end | |
| end |
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