1 # Redmine - project management software
2 # Copyright (C) 2006-2011 Jean-Philippe Lang
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License
6 # as published by the Free Software Foundation; either version 2
7 # of the License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 require 'redmine/scm/adapters/mercurial_adapter'
20 class Repository::Mercurial < Repository
21 # sort changesets by revision number
22 has_many :changesets, :order => "#{Changeset.table_name}.id DESC", :foreign_key => 'repository_id'
24 attr_protected :root_url
25 validates_presence_of :url
27 FETCH_AT_ONCE = 100 # number of changesets to fetch at once
29 def self.human_attribute_name(attribute_key_name)
30 attr_name = attribute_key_name
32 attr_name = "path_to_repository"
37 def self.scm_adapter_class
38 Redmine::Scm::Adapters::MercurialAdapter
45 def supports_directory_revisions?
53 # Returns the readable identifier for the given mercurial changeset
54 def self.format_changeset_identifier(changeset)
55 "#{changeset.revision}:#{changeset.scmid}"
58 # Returns the identifier for the given Mercurial changeset
59 def self.changeset_identifier(changeset)
63 def diff_format_revisions(cs, cs_to, sep=':')
67 # Finds and returns a revision with a number or the beginning of a hash
68 def find_changeset_by_name(name)
69 return nil if name.nil? || name.empty?
70 if /[^\d]/ =~ name or name.to_s.size > 8
71 e = changesets.find(:first, :conditions => ['scmid = ?', name.to_s])
73 e = changesets.find(:first, :conditions => ['revision = ?', name.to_s])
76 changesets.find(:first, :conditions => ['scmid LIKE ?', "#{name}%"]) # last ditch
79 # Returns the latest changesets for +path+; sorted by revision number
81 # Because :order => 'id DESC' is defined at 'has_many',
82 # there is no need to set 'order'.
83 # But, MySQL test fails.
84 # Sqlite3 and PostgreSQL pass.
86 def latest_changesets(path, rev, limit=10)
87 changesets.find(:all, :include => :user,
88 :conditions => latest_changesets_cond(path, rev, limit),
89 :limit => limit, :order => "#{Changeset.table_name}.id DESC")
92 def latest_changesets_cond(path, rev, limit)
94 if scm.branchmap.member? rev
95 # Mercurial named branch is *stable* in each revision.
96 # So, named branch can be stored in database.
97 # Mercurial provides *bookmark* which is equivalent with git branch.
98 # But, bookmark is not implemented.
99 cond << "#{Changeset.table_name}.scmid IN (?)"
100 # Revisions in root directory and sub directory are not equal.
101 # So, in order to get correct limit, we need to get all revisions.
102 # But, it is very heavy.
103 # Mercurial does not treat direcotry.
104 # So, "hg log DIR" is very heavy.
105 branch_limit = path.blank? ? limit : ( limit * 5 )
106 args << scm.nodes_in_branch(rev, :limit => branch_limit)
107 elsif last = rev ? find_changeset_by_name(scm.tagmap[rev] || rev) : nil
108 cond << "#{Changeset.table_name}.id <= ?"
113 cond << "EXISTS (SELECT * FROM #{Change.table_name}
114 WHERE #{Change.table_name}.changeset_id = #{Changeset.table_name}.id
115 AND (#{Change.table_name}.path = ?
116 OR #{Change.table_name}.path LIKE ? ESCAPE ?))"
117 args << path.with_leading_slash
118 args << "#{path.with_leading_slash.gsub(/[%_\\]/) { |s| "\\#{s}" }}/%" << '\\'
121 [cond.join(' AND '), *args] unless cond.empty?
123 private :latest_changesets_cond
126 return if scm.info.nil?
127 scm_rev = scm.info.lastrev.revision.to_i
128 db_rev = latest_changeset ? latest_changeset.revision.to_i : -1
129 return unless db_rev < scm_rev # already up-to-date
131 logger.debug "Fetching changesets for repository #{url}" if logger
132 (db_rev + 1).step(scm_rev, FETCH_AT_ONCE) do |i|
134 scm.each_revision('', i, [i + FETCH_AT_ONCE - 1, scm_rev].min) do |re|
135 cs = Changeset.create(:repository => self,
136 :revision => re.revision,
138 :committer => re.author,
139 :committed_on => re.time,
140 :comments => re.message)
141 re.paths.each { |e| cs.create_change(e) }