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module Oxidized
class Git < Output
class GitError < OxidizedError; end
begin
require 'rugged'
rescue LoadError
raise OxidizedError, 'rugged not found: sudo gem install rugged'
end
attr_reader :commitref
def initialize
@cfg = Oxidized.config.output.git
end
def setup
if @cfg.empty?
Oxidized.asetus.user.output.git.user = 'Oxidized'
Oxidized.asetus.user.output.git.email = 'o@example.com'
Oxidized.asetus.user.output.git.repo = File.join(Config::Root, 'oxidized.git')
Oxidized.asetus.save :user
raise NoConfig, 'no output git config, edit ~/.config/oxidized/config'
end
if @cfg.repo.respond_to?(:each)
@cfg.repo.each do |group, repo|
@cfg.repo["#{group}="] = File.expand_path repo
end
else
@cfg.repo = File.expand_path @cfg.repo
end
end
def store file, outputs, opt = {}
@msg = opt[:msg]
@user = (opt[:user] or @cfg.user)
@email = (opt[:email] or @cfg.email)
@opt = opt
@commitref = nil
repo = @cfg.repo
outputs.types.each do |type|
type_cfg = ''
type_repo = File.join(File.dirname(repo), type + '.git')
outputs.type(type).each do |output|
(type_cfg << output; next) if not output.name
type_file = file + '--' + output.name
if @cfg.type_as_directory?
type_file = type + '/' + type_file
type_repo = repo
end
update type_repo, type_file, output
end
update type_repo, file, type_cfg
end
update repo, file, outputs.to_cfg
end
def fetch node, group
begin
repo, path = yield_repo_and_path(node, group)
repo = Rugged::Repository.new repo
index = repo.index
index.read_tree repo.head.target.tree unless repo.empty?
repo.read(index.get(path)[:oid]).data
rescue
'node not found'
end
end
# give a hash of all oid revision for the given node, and the date of the commit
def version node, group
begin
repo, path = yield_repo_and_path(node, group)
repo = Rugged::Repository.new repo
walker = Rugged::Walker.new(repo)
walker.sorting(Rugged::SORT_DATE)
walker.push(repo.head.target)
i = -1
tab = []
walker.each do |commit|
if commit.diff(paths: [path]).size > 0
hash = {}
hash[:date] = commit.time.to_s
hash[:oid] = commit.oid
hash[:author] = commit.author
hash[:message] = commit.message
tab[i += 1] = hash
end
end
walker.reset
tab
rescue
'node not found'
end
end
# give the blob of a specific revision
def get_version node, group, oid
begin
repo, path = yield_repo_and_path(node, group)
repo = Rugged::Repository.new repo
repo.blob_at(oid, path).content
rescue
'version not found'
end
end
# give a hash with the patch of a diff between 2 revision and the stats (added and deleted lines)
def get_diff node, group, oid1, oid2
begin
diff_commits = nil
repo, _ = yield_repo_and_path(node, group)
repo = Rugged::Repository.new repo
commit = repo.lookup(oid1)
if oid2
commit_old = repo.lookup(oid2)
diff = repo.diff(commit_old, commit)
diff.each do |patch|
if /#{node.name}\s+/.match(patch.to_s.lines.first)
diff_commits = { :patch => patch.to_s, :stat => patch.stat }
break
end
end
else
stat = commit.parents[0].diff(commit).stat
stat = [stat[1], stat[2]]
patch = commit.parents[0].diff(commit).patch
diff_commits = { :patch => patch, :stat => stat }
end
diff_commits
rescue
'no diffs'
end
end
private
def yield_repo_and_path(node, group)
repo, path = node.repo, node.name
if group and @cfg.single_repo?
path = "#{group}/#{node.name}"
end
[repo, path]
end
def update repo, file, data
return if data.empty?
if @opt[:group]
if @cfg.single_repo?
file = File.join @opt[:group], file
else
repo = if repo.is_a?(::String)
File.join File.dirname(repo), @opt[:group] + '.git'
else
repo[@opt[:group]]
end
end
end
begin
repo = Rugged::Repository.new repo
update_repo repo, file, data, @msg, @user, @email
rescue Rugged::OSError, Rugged::RepositoryError => open_error
begin
Rugged::Repository.init_at repo, :bare
rescue => create_error
raise GitError, "first '#{open_error.message}' was raised while opening git repo, then '#{create_error.message}' was while trying to create git repo"
end
retry
end
end
def update_repo repo, file, data, msg, user, email
oid = repo.write data, :blob
index = repo.index
index.read_tree repo.head.target.tree unless repo.empty?
tree_old = index.write_tree repo
index.add :path => file, :oid => oid, :mode => 0100644
tree_new = index.write_tree repo
if tree_old != tree_new
repo.config['user.name'] = user
repo.config['user.email'] = email
@commitref = Rugged::Commit.create(repo,
:tree => index.write_tree(repo),
:message => msg,
:parents => repo.empty? ? [] : [repo.head.target].compact,
:update_ref => 'HEAD',)
index.write
true
end
end
end
end
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