rosa-build/app/models/git/repository.rb

133 lines
3.8 KiB
Ruby

# -*- encoding : utf-8 -*-
class Git::Repository
delegate :commits, :commit, :tree, :tags, :heads, :commit_count, :log, :branches, :to => :repo
attr_accessor :path, :name, :repo, :last_actor
def initialize(path)
@path = path
@update_callbacks = []
end
def master
commits('master', 1).first
end
def to_s
name
end
def repo
@repo ||= Grit::Repo.new(path)
end
# Adds a callback to be fired after update file.
#
# block - A block that expects this Git::Repository instance and the created
# commit's SHA1 as the arguments.
#
# For example:
#
# after_update_file do |repo, sha|
# # callback body
# end
#
# Returns nothing.
def after_update_file(&block)
@update_callbacks << block
end
# Writes file to repo and runs 'after_update_file' callbacks
#
# path - path to file in repository
# data - new content of file
# options - an optional Hash of options
# :head - branch name to write this commit to
# (Default: 'master')
# :actor - author of this commit. (See Git::Repository#get_actor)
# (Default: nil)
# :message - commit message
# (Default: "Updated file <filename>")
#
# Returns commits sha if committing was successful and false otherwise
def update_file(path, data, options = {})
path.force_encoding(Encoding::ASCII_8BIT) # some magic
head = options[:head].to_s || 'master'
actor = get_actor(options[:actor])
filename = File.split(path).last
message = options[:message]
message = "Updated file #{filename}" if message.nil? or message.empty?
# can not write to unexisted branch
return false if branches.select{|b| b.name == head}.size != 1
parent = commits(head).first
index = repo.index
index.read_tree(parent.tree.id)
# can not create new file
return false if (index.current_tree / path).nil?
index.add(path, data)
sha = index.commit(message, :parents => [parent], :actor => actor,
:last_tree => parent.tree.id, :head => head)
# call all defined callbacks
@update_callbacks.each do |cb|
cb.call(self, sha)
end
sha
end
def self.create(path)
repo = Grit::Repo.init_bare(path)
repo.enable_daemon_serve
end
def paginate_commits(treeish, options = {})
options[:page] = 1 unless options[:page].present?
options[:page] = options[:page].to_i
options[:per_page] = 20 unless options[:per_page].present?
options[:per_page] = options[:per_page].to_i
skip = options[:per_page] * (options[:page] - 1)
last_page = (skip + options[:per_page]) >= commit_count(treeish)
[commits(treeish, options[:per_page], skip), options[:page], last_page]
end
# Pretty object inspection
def inspect
%Q{#<Git::Repository "#{@path}">}
end
protected
# Creates new Grit::Actor instance
#
# Might be:
# * A Hash containing :name and :email
# * An instance of Grit::Actor
# * A String like "John Doe <j.doe@example.com>
# * Any object that responds to `name` and `email` methods
def get_actor(actor = nil)
@last_actor = case actor.class.to_s
when 'Grit::Actor' then options[:actor]
when 'Hash' then Grit::Actor.new(actor[:name], actor[:email])
when 'String' then Grit::Actor.from_stirng(actor)
else begin
if actor.respond_to?(:name) and actor.respond_to?(:email)
Grit::Actor.new(actor.name, actor.email)
else
config = Grit::Config.new(repo)
Grit::Actor.new(config['user.name'], config['user.email'])
end
end
end
@last_actor
end
end