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tag.rb
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tag.rb
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module Grit
class Tag < Ref
extend Lazy
lazy_reader :message
lazy_reader :tagger
lazy_reader :tag_date
def self.find_all(repo, options = {})
refs = repo.git.refs(options, prefix)
refs.split("\n").map do |ref|
name, id = *ref.split(' ')
sha = repo.git.commit_from_sha(id)
raise "Unknown object type." if sha == ''
commit = Commit.create(repo, :id => sha)
new(name, commit)
end
end
# Parses the results from `cat-file -p`
#
# data - String tag object data. Example:
# object 7bcc0ee821cdd133d8a53e8e7173a334fef448aa
# type commit
# tag v0.7.0
# tagger USER <EMAIL> DATE
#
# v0.7.0
#
# Returns parsed Hash. Example:
# {:message => "...", :tagger => "bob", :tag_date => ...}
def self.parse_tag_data(data)
return unless data =~ /^object/
parsed = {}
lines = data.split("\n")
lines.shift # type commit
lines.shift # tag name
lines.shift
author_line = lines.shift
parsed[:tagger], parsed[:tag_date] = Commit.actor(author_line)
if !parsed[:tagger] || !parsed[:tagger].name
parsed[:tag_date] ||= Time.utc(1970)
parsed[:tagger] = Actor.from_string(author_line.sub(/^tagger /, ''))
end
lines.shift # blank line
parsed[:message] = []
while lines.first && lines.first !~ /-----BEGIN PGP SIGNATURE-----/
parsed[:message] << lines.shift
end
parsed[:message] = parsed[:message] * "\n"
parsed
end
def lazy_source
data = commit.repo.git.cat_ref({:p => true}, name)
@message = commit.short_message
@tagger = commit.author
@tag_date = commit.authored_date
return self if data.empty?
if parsed = self.class.parse_tag_data(data)
@message = parsed[:message]
@tagger = parsed[:tagger]
@tag_date = parsed[:tag_date]
end
self
end
end
end