Class: PVN::Diff::LogPath

Inherits:
Path
  • Object
show all
Defined in:
lib/pvn/diff/log_path.rb

Overview

this is a path wrapping a log entry; it could also be a RemotePath or a RepoPath.

Instance Attribute Summary

Attributes inherited from Path

#changes, #name, #url

Instance Method Summary collapse

Methods inherited from Path

#<=>, #add_change, #initialize, #run_diff, #to_revision, #to_s

Constructor Details

This class inherits a constructor from PVN::Diff::Path

Instance Method Details

#diff_revision_to_revision(revision, whitespace) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 45

def diff_revision_to_revision revision, whitespace
  # all the paths will be the same, so any can be selected (actually, a
  # logpath should have multiple changes)
  svnpath = url + name
  elmt = PVN::IO::Element.new :svn => svnpath

  displaypath = get_display_path

  rev_change = changes.detect do |chg| 
    revarg = SVNx::Revision::Argument.create chg.revision
    revarg > revision.from
  end

  # we ignore unversioned logpaths
  
  # I'm sure there is a bunch of permutations here, so this is probably
  # overly simplistic.
  action = rev_change.action
  
  case
  when action.added?
    show_as_added elmt, displaypath, revision, whitespace
  when action.deleted?
    show_as_deleted elmt, displaypath, revision, whitespace
  when action.modified?
    show_as_modified elmt, displaypath, changes, revision, whitespace
  end
end

#diff_revision_to_working_copy(revision, whitespace) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 88

def diff_revision_to_working_copy revision, whitespace
  fromrev = revision.from.value.to_i

  ### $$$ this doesn't handle the case where a file has been added, then
  ### modified.

  change = revisions_later_than(fromrev).first
  info "change: #{change}".color(:red)

  # revision should be a class here, not a primitive
  diffrev = get_diff_revision change, revision
  
  displaypath = get_display_path

  pn = Pathname.new displaypath

  info "url: #{url}"
  info "name: #{name}"
  svnpath = url + name
  info "svnpath: #{svnpath}"

  elmt = PVN::IO::Element.new :svn => svnpath

  if change.action.added?
    show_as_added elmt, displaypath, revision, whitespace
  else
    fromlines = elmt.cat diffrev
    info "fromlines.size: #{fromlines.size}"
    # pp fromlines

    tolines = pn.readlines
    info "tolines.size: #{tolines.size}"
    # pp tolines

    run_diff displaypath, fromlines, diffrev, tolines, nil, whitespace
  end
end

#get_diff_revision(change, revision) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 74

def get_diff_revision change, revision
  # find the first revision where logpath was in svn, no earlier than the
  # revision.from value
  info "change: #{change.class}"
  info "change.action: #{change.action}"
  if change.action.added?
    change.revision.to_i
  elsif change.revision.to_i >= revision.from.value
    revision.from.value
  else
    nil
  end
end

#get_display_path ⇒ Object

log entries have names of the form /foo/bar.rb, relative to the URL.



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# File 'lib/pvn/diff/log_path.rb', line 41

def get_display_path
  name[1 .. -1]
end

#is_revision_later_than?(revision) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pvn/diff/log_path.rb', line 126

def is_revision_later_than? revision
  revisions_later_than(revision).first
end

#revisions_later_than(revision) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 130

def revisions_later_than revision
  changes.select do |chg|
    x = SVNx::Revision::Argument.create chg.revision
    y = SVNx::Revision::Argument.create revision
    x > y
  end
end

#show_as_added(elmt, path, revision, whitespace) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 29

def show_as_added elmt, path, revision, whitespace
  tolines = elmt.cat revision.to
  run_diff path, nil, 0, tolines, revision.to, whitespace
end

#show_as_deleted(elmt, path, revision, whitespace) ⇒ Object 



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# File 'lib/pvn/diff/log_path.rb', line 34

def show_as_deleted elmt, path, revision, whitespace
  fromrev = revision.from.value.to_i
  fromlines = elmt.cat fromrev
  run_diff path, fromlines, fromrev, nil, revision.to, whitespace
end

#show_as_modified(elmt, path, changes, revision, whitespace) ⇒ Object

the “path” parameter is the displayed name; “logpath” is the LogPath. These are in the process of being refactored.



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# File 'lib/pvn/diff/log_path.rb', line 14

def show_as_modified elmt, path, changes, revision, whitespace
  firstrev = changes[0].revision
  lastrev = changes[-1].revision
  fromrev, torev = if firstrev == lastrev
                     [ revision.from.value.to_i - 1, revision.to ]
                   else
                     [ firstrev.to_i - 1, lastrev ]
                   end

  fromlines = elmt.cat firstrev
  tolines = elmt.cat torev
  fromrev = revision.from.value.to_i
  run_diff path, fromlines, fromrev, tolines, revision.to, whitespace
end