Class: Gitrb::Repository
- Inherits:
-
Object
- Object
- Gitrb::Repository
- Defined in:
- lib/gitrb/repository.rb
Constant Summary collapse
- SHA_PATTERN =
/^[A-Fa-f0-9]{5,40}$/
- REVISION_PATTERN =
/^[\w\-\.]+([\^~](\d+)?)*$/
- DEFAULT_ENCODING =
'utf-8'
- MIN_GIT_VERSION =
'1.6.0'
Instance Attribute Summary collapse
-
#branch ⇒ Object
Returns the value of attribute branch.
-
#encoding ⇒ Object
readonly
Returns the value of attribute encoding.
-
#head ⇒ Object
readonly
Returns the value of attribute head.
-
#path ⇒ Object
readonly
Returns the value of attribute path.
-
#root ⇒ Object
readonly
Returns the value of attribute root.
Instance Method Summary collapse
-
#bare? ⇒ Boolean
Bare repository?.
-
#changed? ⇒ Boolean
Has our repository been changed on disk?.
-
#clear ⇒ Object
Clear cached objects.
-
#commit(message = '', author = nil, committer = nil) ⇒ Object
Write a commit object to disk and set the head of the current branch.
- #default_user ⇒ Object
-
#diff(from, to, path = nil) ⇒ Object
Diff.
-
#get(id) ⇒ Object
Get an object by its id.
- #get_blob(id) ⇒ Object
- #get_commit(id) ⇒ Object
- #get_tree(id) ⇒ Object
-
#in_transaction? ⇒ Boolean
Is there any transaction going on?.
-
#initialize(options = {}) ⇒ Repository
constructor
Initialize a repository.
-
#log(limit = 10, start = nil, path = nil) ⇒ Object
Returns a list of commits starting from head commit.
- #method_missing(name, *args, &block) ⇒ Object
-
#put(object) ⇒ Object
Write a raw object to the repository.
-
#refresh ⇒ Object
Load the repository, if it has been changed on disk.
- #set_encoding(s) ⇒ Object
-
#transaction(message = '', author = nil, committer = nil) ⇒ Object
All changes made inside a transaction are atomic.
Constructor Details
#initialize(options = {}) ⇒ Repository
Initialize a repository.
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# File 'lib/gitrb/repository.rb', line 30 def initialize( = {}) @bare = [:bare] || false @branch = [:branch] || 'master' @logger = [:logger] || Logger.new(nil) @encoding = [:encoding] || DEFAULT_ENCODING @lock = {} @transaction = Mutex.new @path = [:path] @path.chomp!('/') @path += '/.git' if !@bare check_git_version if ![:ignore_version] open_repository([:create]) load_packs load end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args, &block) ⇒ Object
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# File 'lib/gitrb/repository.rb', line 261 def method_missing(name, *args, &block) cmd = name.to_s if cmd[0..3] == 'git_' ENV['GIT_DIR'] = path cmd = cmd[4..-1].tr('_', '-') args = args.flatten.compact.map {|s| "'" + s.to_s.gsub("'", "'\\\\''") + "'" }.join(' ') cmdline = "git #{cmd} #{args} 2>&1" @logger.debug "gitrb: #{cmdline}" # Read in binary mode (ascii-8bit) and convert afterwards out = if block_given? IO.popen(cmdline, 'rb', &block) else set_encoding IO.popen(cmdline, 'rb') {|io| io.read } end if $?.exitstatus > 0 return '' if $?.exitstatus == 1 && out == '' raise CommandError.new("git #{cmd}", args, out) end out else super end end |
Instance Attribute Details
#branch ⇒ Object
Returns the value of attribute branch.
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# File 'lib/gitrb/repository.rb', line 16 def branch @branch end |
#encoding ⇒ Object (readonly)
Returns the value of attribute encoding.
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# File 'lib/gitrb/repository.rb', line 16 def encoding @encoding end |
#head ⇒ Object (readonly)
Returns the value of attribute head.
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# File 'lib/gitrb/repository.rb', line 16 def head @head end |
#path ⇒ Object (readonly)
Returns the value of attribute path.
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# File 'lib/gitrb/repository.rb', line 16 def path @path end |
#root ⇒ Object (readonly)
Returns the value of attribute root.
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# File 'lib/gitrb/repository.rb', line 16 def root @root end |
Instance Method Details
#bare? ⇒ Boolean
Bare repository?
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# File 'lib/gitrb/repository.rb', line 50 def @bare end |
#changed? ⇒ Boolean
Has our repository been changed on disk?
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# File 'lib/gitrb/repository.rb', line 63 def changed? !head || head.id != read_head_id end |
#clear ⇒ Object
Clear cached objects
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# File 'lib/gitrb/repository.rb', line 73 def clear @transaction.synchronize do @objects.clear load end end |
#commit(message = '', author = nil, committer = nil) ⇒ Object
Write a commit object to disk and set the head of the current branch.
Returns the commit object
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# File 'lib/gitrb/repository.rb', line 123 def commit( = '', = nil, committer = nil) return if !root.modified? ||= default_user committer ||= root.save commit = Commit.new(:repository => self, :tree => root, :parents => head, :author => , :committer => committer, :message => ) commit.save write_head_id(commit.id) load commit end |
#default_user ⇒ Object
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# File 'lib/gitrb/repository.rb', line 289 def default_user name = git_config('user.name').chomp email = git_config('user.email').chomp if name.empty? require 'etc' user = Etc.getpwnam(Etc.getlogin) name = user.gecos end if email.empty? require 'etc' email = Etc.getlogin + '@' + `hostname -f`.chomp end User.new(name, email) end |
#diff(from, to, path = nil) ⇒ Object
Diff
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# File 'lib/gitrb/repository.rb', line 86 def diff(from, to, path = nil) if from && !(Commit === from) raise ArgumentError, "Invalid sha: #{from}" if from !~ SHA_PATTERN from = Reference.new(:repository => self, :id => from) end if !(Commit === to) raise ArgumentError, "Invalid sha: #{to}" if to !~ SHA_PATTERN to = Reference.new(:repository => self, :id => to) end Diff.new(from, to, git_diff_tree('--root', '-u', '--full-index', from && from.id, to.id, '--', path)) end |
#get(id) ⇒ Object
Get an object by its id.
Returns a tree, blob, commit or tag object.
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# File 'lib/gitrb/repository.rb', line 175 def get(id) raise ArgumentError, 'No id given' if !(String === id) if id =~ SHA_PATTERN raise NotFound, "Sha too short: #{id}" if id.length < 5 list = @objects.find(id).to_a raise NotFound, "Sha is ambiguous: #{id}" if list.size > 1 return list.first if list.size == 1 elsif id =~ REVISION_PATTERN list = git_rev_parse(id).split("\n") rescue nil raise NotFound, "Revision not found: #{id}" if !list || list.empty? raise NotFound, "Revision is ambiguous: #{id}" if list.size > 1 id = list.first end @logger.debug "gitrb: Loading #{id}" path = object_path(id) if File.exists?(path) || (glob = Dir.glob(path + '*')).size >= 1 if glob raise NotFound, "Sha is ambiguous: #{id}" if glob.size > 1 path = glob.first id = path[-41..-40] + path[-38..-1] end buf = File.open(path, 'rb') { |f| f.read } raise NotFound, "Not a loose object: #{id}" if !legacy_loose_object?(buf) header, content = Zlib::Inflate.inflate(buf).split("\0", 2) type, size = header.split(' ', 2) raise NotFound, "Bad object: #{id}" if content.length != size.to_i else trie = @packs.find(id) raise NotFound, "Object not found: #{id}" if !trie id += trie.key[-(41 - id.length)...-1] list = trie.to_a raise NotFound, "Sha is ambiguous: #{id}" if list.size > 1 pack, offset = list.first content, type = pack.get_object(offset) end @logger.debug "gitrb: Loaded #{id}" set_encoding(id) object = GitObject.factory(type, :repository => self, :id => id, :data => content) @objects.insert(id, object) object end |
#get_blob(id) ⇒ Object
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# File 'lib/gitrb/repository.rb', line 230 def get_blob(id) get_type(id, :blob) end |
#get_commit(id) ⇒ Object
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# File 'lib/gitrb/repository.rb', line 231 def get_commit(id) get_type(id, :commit) end |
#get_tree(id) ⇒ Object
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# File 'lib/gitrb/repository.rb', line 229 def get_tree(id) get_type(id, :tree) end |
#in_transaction? ⇒ Boolean
Is there any transaction going on?
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# File 'lib/gitrb/repository.rb', line 81 def in_transaction? !!@lock[Thread.current.object_id] end |
#log(limit = 10, start = nil, path = nil) ⇒ Object
Returns a list of commits starting from head commit.
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# File 'lib/gitrb/repository.rb', line 145 def log(limit = 10, start = nil, path = nil) limit = limit.to_s start = start.to_s raise ArgumentError, "Invalid limit: #{limit}" if limit !~ /^\d+$/ raise ArgumentError, "Invalid commit: #{start}" if start =~ /^\-/ args = ['--pretty=tformat:%H%n%P%n%T%n%an%n%ae%n%at%n%cn%n%ce%n%ct%n%x00%s%n%b%x00', "-#{limit}" ] args << start if !start.empty? args << '--' << path if path && !path.empty? log = git_log(*args).split(/\n*\x00\n*/) commits = [] log.each_slice(2) do |data, | data = data.split("\n") parents = data[1].empty? ? nil : data[1].split(' ').map {|id| Reference.new(:repository => self, :id => id) } commits << Commit.new(:repository => self, :id => data[0], :parents => parents, :tree => Reference.new(:repository => self, :id => data[2]), :author => User.new(data[3], data[4], Time.at(data[5].to_i)), :committer => User.new(data[6], data[7], Time.at(data[8].to_i)), :message => .strip) end commits rescue => ex return [] if ex. =~ /bad default revision 'HEAD'/i raise end |
#put(object) ⇒ Object
Write a raw object to the repository.
Returns the object.
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# File 'lib/gitrb/repository.rb', line 236 def put(object) content = object.dump data = "#{object.type} #{content.bytesize rescue content.length}\0#{content}" id = sha(data) path = object_path(id) @logger.debug "gitrb: Storing #{id}" if !File.exists?(path) FileUtils.mkpath(File.dirname(path)) File.open(path, 'wb') do |f| f.write Zlib::Deflate.deflate(data) end end @logger.debug "gitrb: Stored #{id}" set_encoding(id) object.repository = self object.id = id @objects.insert(id, object) object end |
#refresh ⇒ Object
Load the repository, if it has been changed on disk.
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# File 'lib/gitrb/repository.rb', line 68 def refresh load if changed? end |
#set_encoding(s) ⇒ Object
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# File 'lib/gitrb/repository.rb', line 24 def set_encoding(s); s.force_encoding(@encoding); end |
#transaction(message = '', author = nil, committer = nil) ⇒ Object
All changes made inside a transaction are atomic. If some exception occurs the transaction will be rolled back.
Example:
repository.transaction { repository['a'] = 'b' }
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# File 'lib/gitrb/repository.rb', line 104 def transaction( = '', = nil, committer = nil) @transaction.synchronize do begin start_transaction result = yield commit(, , committer) result rescue rollback_transaction raise ensure finish_transaction end end end |