Redmine/app/models/repository/cvs.rb

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# redMine - project management software
# Copyright (C) 2006-2007 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'redmine/scm/adapters/cvs_adapter'
require 'digest/sha1'
class Repository::Cvs < Repository
validates_presence_of :url, :root_url
def scm_adapter
Redmine::Scm::Adapters::CvsAdapter
end
def self.scm_name
'CVS'
end
def entry(path, identifier)
e = entries(path, identifier)
e ? e.first : nil
end
def entries(path=nil, identifier=nil)
rev = identifier.nil? ? nil : changesets.find_by_revision(identifier)
entries = scm.entries(path, rev.nil? ? nil : rev.committed_on)
if entries
entries.each() do |entry|
unless entry.lastrev.nil? || entry.lastrev.identifier
change=changes.find_by_revision_and_path( entry.lastrev.revision, scm.with_leading_slash(entry.path) )
if change
entry.lastrev.identifier=change.changeset.revision
entry.lastrev.author=change.changeset.committer
entry.lastrev.revision=change.revision
entry.lastrev.branch=change.branch
end
end
end
end
entries
end
def diff(path, rev, rev_to)
#convert rev to revision. CVS can't handle changesets here
diff=[]
changeset_from=changesets.find_by_revision(rev)
if rev_to.to_i > 0
changeset_to=changesets.find_by_revision(rev_to)
end
changeset_from.changes.each() do |change_from|
revision_from=nil
revision_to=nil
revision_from=change_from.revision if path.nil? || (change_from.path.starts_with? scm.with_leading_slash(path))
if revision_from
if changeset_to
changeset_to.changes.each() do |change_to|
revision_to=change_to.revision if change_to.path==change_from.path
end
end
unless revision_to
revision_to=scm.get_previous_revision(revision_from)
end
file_diff = scm.diff(change_from.path, revision_from, revision_to)
diff = diff + file_diff unless file_diff.nil?
end
end
return diff
end
def fetch_changesets
# some nifty bits to introduce a commit-id with cvs
# natively cvs doesn't provide any kind of changesets, there is only a revision per file.
# we now take a guess using the author, the commitlog and the commit-date.
# last one is the next step to take. the commit-date is not equal for all
# commits in one changeset. cvs update the commit-date when the *,v file was touched. so
# we use a small delta here, to merge all changes belonging to _one_ changeset
time_delta=10.seconds
fetch_since = latest_changeset ? latest_changeset.committed_on : nil
transaction do
tmp_rev_num = 1
scm.revisions('', fetch_since, nil, :with_paths => true) do |revision|
# only add the change to the database, if it doen't exists. the cvs log
# is not exclusive at all.
unless changes.find_by_path_and_revision(scm.with_leading_slash(revision.paths[0][:path]), revision.paths[0][:revision])
revision
cs = changesets.find(:first, :conditions=>{
:committed_on=>revision.time-time_delta..revision.time+time_delta,
:committer=>revision.author,
:comments=>revision.message
})
# create a new changeset....
unless cs
# we use a temporaray revision number here (just for inserting)
# later on, we calculate a continous positive number
latest = changesets.find(:first, :order => 'id DESC')
cs = Changeset.create(:repository => self,
:revision => "_#{tmp_rev_num}",
:committer => revision.author,
:committed_on => revision.time,
:comments => revision.message)
tmp_rev_num += 1
end
#convert CVS-File-States to internal Action-abbrevations
#default action is (M)odified
action="M"
if revision.paths[0][:action]=="Exp" && revision.paths[0][:revision]=="1.1"
action="A" #add-action always at first revision (= 1.1)
elsif revision.paths[0][:action]=="dead"
action="D" #dead-state is similar to Delete
end
Change.create(:changeset => cs,
:action => action,
:path => scm.with_leading_slash(revision.paths[0][:path]),
:revision => revision.paths[0][:revision],
:branch => revision.paths[0][:branch]
)
end
end
# Renumber new changesets in chronological order
changesets.find(:all, :order => 'committed_on ASC, id ASC', :conditions => "revision LIKE '_%'").each do |changeset|
changeset.update_attribute :revision, next_revision_number
end
end # transaction
end
private
# Returns the next revision number to assign to a CVS changeset
def next_revision_number
# Need to retrieve existing revision numbers to sort them as integers
@current_revision_number ||= (connection.select_values("SELECT revision FROM #{Changeset.table_name} WHERE repository_id = #{id} AND revision NOT LIKE '_%'").collect(&:to_i).max || 0)
@current_revision_number += 1
end
end