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Capistrano::Deploy::SCM::Bzr

Implements the Capistrano SCM interface for the Bazaar-NG revision control system (bazaar-vcs.org/).

Public Instance Methods

checkout(revision, destination) click to toggle source

Returns the command that will check out the given revision to the given destination.

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 23
def checkout(revision, destination)
  scm :checkout, "--lightweight", revswitch(revision), repository, destination
end
diff(from, to=nil) click to toggle source

The bzr "diff" command doesn't accept a repository argument, so it must be run from within a working tree.

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 43
def diff(from, to=nil)
  switch = "-r#{from}"
  switch << "..#{to}" if to

  scm :diff, switch
end
export(revision, destination) click to toggle source

The bzr 'export' does an export similar to other SCM systems

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 37
def export(revision, destination)
  scm :export, revswitch(revision), destination, repository
end
head() click to toggle source

Bazaar-NG doesn't support any pseudo-id's, so we'll use the convention in this adapter that the :head symbol means the most recently committed revision.

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 17
def head
  :head
end
log(from, to=nil) click to toggle source

Returns a log of changes between the two revisions (inclusive).

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 51
def log(from, to=nil)
  scm :log, "--short", "-r#{from}..#{to}", repository
end
next_revision(revision) click to toggle source

Increments the given revision number and returns it.

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 69
def next_revision(revision)
  revision.to_i + 1
end
query_revision(revision) click to toggle source

Attempts to translate the given revision identifier to a "real" revision. If the identifier is :head, the "bzr revno" command will be yielded, and the block must execute the command and return the output. The revision will be extracted from the output and returned. If the 'revision' argument, on the other hand, is not :head, it is simply returned.

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 61
def query_revision(revision)
  return revision unless :head == revision

  command = scm('revno', repository)
  result = yield(command)
end
sync(revision, destination) click to toggle source

The bzr 'update' command does not support updating to a specific revision, so this just does update, followed by revert (unless updating to head).

# File lib/capistrano/recipes/deploy/scm/bzr.rb, line 30
def sync(revision, destination)
  commands = [scm(:update, destination)]
  commands << [scm(:revert, revswitch(revision), destination)] if revision != head
  commands.join(" && ")
end

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