Class: Database

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/database.rb,
lib/database/blob.rb,
lib/database/tree.rb,
lib/database/entry.rb,
lib/database/loose.rb,
lib/database/author.rb,
lib/database/commit.rb,
lib/database/packed.rb,
lib/database/backends.rb,
lib/database/tree_diff.rb

Defined Under Namespace

Classes: Author, Backends, Blob, Commit, Entry, Loose, Packed, Raw, Tree, TreeDiff

Constant Summary collapse

TYPES = 
{
  "blob"   => Blob,
  "tree"   => Tree,
  "commit" => Commit
}
TIME_FORMAT = 
"%s %z"

Instance Method Summary collapse

Constructor Details

#initialize(pathname) ⇒ Database

Returns a new instance of Database.



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# File 'lib/database.rb', line 29

def initialize(pathname)
  @objects = {}
  @backend = Backends.new(pathname)
end

Instance Method Details

#build_list(list, entry, prefix) ⇒ Object 



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# File 'lib/database.rb', line 70

def build_list(list, entry, prefix)
  return unless entry
  return list[prefix.to_s] = entry unless entry.tree?

  load(entry.oid).entries.each do |name, item|
    build_list(list, item, prefix.join(name))
  end
end

#hash_object(object) ⇒ Object 



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# File 'lib/database.rb', line 41

def hash_object(object)
  hash_content(serialize_object(object))
end

#load(oid) ⇒ Object 



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# File 'lib/database.rb', line 45

def load(oid)
  @objects[oid] ||= read_object(oid)
end

#load_tree_entry(oid, pathname) ⇒ Object 



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# File 'lib/database.rb', line 49

def load_tree_entry(oid, pathname)
  commit = load(oid)
  root   = Database::Entry.new(commit.tree, Tree::TREE_MODE)

  return root unless pathname

  pathname.each_filename.reduce(root) do |entry, name|
    entry ? load(entry.oid).entries[name] : nil
  end
end

#load_tree_list(oid, pathname = nil) ⇒ Object 



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# File 'lib/database.rb', line 60

def load_tree_list(oid, pathname = nil)
  return {} unless oid

  entry = load_tree_entry(oid, pathname)
  list  = {}

  build_list(list, entry, pathname || Pathname.new(""))
  list
end

#short_oid(oid) ⇒ Object 



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# File 'lib/database.rb', line 83

def short_oid(oid)
  oid[0..6]
end

#store(object) ⇒ Object 



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# File 'lib/database.rb', line 34

def store(object)
  content    = serialize_object(object)
  object.oid = hash_content(content)

  @backend.write_object(object.oid, content)
end

#tree_diff(a, b, filter = PathFilter.new) ⇒ Object 



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# File 'lib/database.rb', line 87

def tree_diff(a, b, filter = PathFilter.new)
  diff = TreeDiff.new(self)
  diff.compare_oids(a, b, filter)
  diff.changes
end

#tree_entry(oid) ⇒ Object 



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# File 'lib/database.rb', line 79

def tree_entry(oid)
  Entry.new(oid, Tree::TREE_MODE)
end