Class: History

Inherits:
Object show all
Defined in:
lib/xiki/history.rb

Class Method Summary collapse

Class Method Details

.backup_file ⇒ Object 



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# File 'lib/xiki/history.rb', line 236

def self.backup_file
  bm = Bookmarks['$bak']
  return View.beep "- First, set the 'bak' bookmark to a dir!" if bm == "$bak"

  unless bm.any?   # If no bookmark, just show error
    View.beep
    return View.message("Error: create a bookmark named 'bak' first, in a dir where you backups will go.")
  end

  path = Keys.prefix_u? ?
    View.file :
    FileTree.tree_path_or_this_file

  name = path.sub(/.+\//, '')

  # Copy file xx
  $el.copy_file path, "#{bm}#{name}.#{Time.now.strftime('%Y-%m-%d.%H-%M')}"

  message = "backed up to $bak: '#{name}'"
  View.flash "- #{message}", :times=>3
  View.message "Successfully #{message}"
end

.diff_with_backup ⇒ Object 



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# File 'lib/xiki/history.rb', line 259

def self.diff_with_backup

  if Keys.prefix_u
    $el.ediff_files Dir["#{Bookmarks['$bak']}#{View.file_name}*"].last, View.file
    return
  end

  backup = Dir["#{Bookmarks['$bak']}#{View.file_name}*"].last

  return View.beep("- No backup exists in $bak/") if ! backup

  diff = Console.run "diff -U 0 \"#{backup}\" \"#{$el.buffer_file_name}\"", :sync=>true

  return Launcher.show "- No Differences!" if diff.blank?

  diff = DiffLog.format diff

  View.to_buffer("*diff with saved*")
  View.clear
  Notes.mode

  $el.insert diff.count("\n") > 2 ?
    diff :
    "| Alert\n- ~No Differences~\n"

end

.enter_history ⇒ Object 



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# File 'lib/xiki/history.rb', line 117

def self.enter_history
  orig = Location.new
  self.insert_history self.prefix_times
  right = $el.point
  orig.go
  Tree.search :recursive => true, :left => $el.point, :right => right
end

.enter_viewing ⇒ Object 



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# File 'lib/xiki/history.rb', line 131

def self.enter_viewing
  orig = Location.new
  self.insert_viewing self.prefix_times
  right = $el.point
  orig.go
  Tree.search :recursive => true, :left => $el.point, :right => right
end

.insert_history(times) ⇒ Object 



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# File 'lib/xiki/history.rb', line 113

def self.insert_history times
  View.insert Tree.paths_to_tree($el.elvar.recentf_list.to_a[0..(times-1)])
end

.insert_viewing(times) ⇒ Object 



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# File 'lib/xiki/history.rb', line 125

def self.insert_viewing times
  paths = ( $el.buffer_list.map { |b| $el.buffer_file_name(b) }.select{|path| path})
  paths = paths[0..(times-1)] if times  # Limit to number if prefix passed
  View.insert Tree.paths_to_tree(paths)
end

.menu ⇒ Object

FILENAME = File.expand_path “~/.emacs.d/menu_log.notes” Unused



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# File 'lib/xiki/history.rb', line 5

def self.menu
  "
  - menus) @log/

  > Files
  - .unsaved files/
  - @edited/
  - @files/history/
  "
end

.open_current(options = {}) ⇒ Object 



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# File 'lib/xiki/history.rb', line 23

def self.open_current options={}
  if options[:paths]
    paths = options[:paths]
  elsif options[:prompt_for_bookmark]
    bm = Keys.input(:timed => true, :prompt => "Enter bookmark to show content for: ")
    path = Bookmarks.expand(bm, :just_bookmark => true)
    return View.beep("- Bookmark '#{bm}' not found!") if ! path
    path = File.expand_path(path)

    if ! options[:all] && View.files.member?(path)
      View.open path
      FileTree.to_outline
      return
    end

    paths = [path]
  elsif options[:outline] || options[:all]
    paths = [$el.buffer_file_name($el.buffer_list[0])]
  else  # No options passed
    times = Keys.prefix
    paths = ( $el.buffer_list.map { |b| $el.buffer_file_name(b) }.select{|path| path})
    paths = paths[0..(times-1)] if times  # Limit to number if prefix passed
  end

  if options[:enter_here]  # If entering in current file
    path = paths.to_s
    # If it's a dir, delegate to Open Tree
    if path =~ /\/$/
      FileTree.ls :here => true, :dir => path
      return
    end
    View.insert "- " + FileTree.filename_to_next_line(paths.to_s)
    $el.open_line 1
    FileTree.enter_lines

  else  # If entering in new buffer

    # By default happen in same view
    View.bar if options[:bar]  # If to go to bar

    # If only one path, go to it's buffer if already open
    if paths.size == 1
      View.open paths[0]
    end

    View.to_buffer("*tree of current")
    View.clear;  Notes.mode

    raise "Thought this wouldn't happen :(" if paths.length > 1

    dir, file = paths[0].match(/(.+\/)(.+)/)[1..2]
    View << "- #{dir}\n  - #{file}\n"

    View.to_top
    Keys.clear_prefix
    FileTree.select_next_file
    if options[:all]
      FileTree.enter_lines(//)
    elsif options[:outline] || options[:prompt_for_bookmark]
      FileTree.enter_lines
    else
      Tree.search :recursive => true
    end
  end

end

.open_edited ⇒ Object 



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# File 'lib/xiki/history.rb', line 90

def self.open_edited
  times = self.prefix_times
  View.to_buffer("*tree of edited")
  View.clear;  notes_mode
  View.insert Tree.paths_to_tree($el.elvar.editedhistory_history.to_a[0..(times-1)])
  View.to_top
  Keys.clear_prefix
  FileTree.select_next_file
  Tree.search :recursive => true
end

.open_history ⇒ Object 



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# File 'lib/xiki/history.rb', line 101

def self.open_history
  times = self.prefix_times
  View.to_buffer("*tree of history")
  View.clear;  notes_mode

  self.insert_history times
  View.to_top
  Keys.clear_prefix
  FileTree.select_next_file
  Tree.search :recursive => true
end

.prefix_times ⇒ Object 



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# File 'lib/xiki/history.rb', line 16

def self.prefix_times
  prefix = Keys.prefix
  prefix ||= 20
  prefix = 20 if prefix == :u
  prefix
end

.setup_editedhistory ⇒ Object 



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# File 'lib/xiki/history.rb', line 174

def self.setup_editedhistory

  return if ! $el

  $el.el4r_lisp_eval %q<
    (progn
      ; Settings
      (setq editedhistory-log "~/.editedhistory")

      ; Runs upon startup.  Load log file into memory if it exists.  Run this manually if you edit the log file.
      (defun editedhistory-load ()
        (if (file-readable-p editedhistory-log)
          ; Read from file into memory
          (with-temp-buffer
            (insert-file-contents editedhistory-log nil nil nil t)
            (setq editedhistory-history
              (car (read-from-string (buffer-substring (point-min) (point-max))) )))
          ; Otherwise, initialize var
          (set 'editedhistory-history nil)))

      ; Saves on exit: 'editedhistory-history' to the file 'editedhistory-log'
      (add-hook 'kill-emacs-hook 'editedhistory-save)
      (defun editedhistory-save () (interactive)
        (with-temp-buffer
          (erase-buffer)
          (insert (pp-to-string editedhistory-history) )
          (if (file-writable-p editedhistory-log)
            (write-region (point-min) (point-max) editedhistory-log)
          )
          (kill-buffer (current-buffer)))
        nil)

      ; Runs upon save: Track modified files
      (defun editedhistory-remember-file ()
        ; Remove from list in case it's already there (we want to add to beginning)
        (when (boundp 'editedhistory-history)
          (setq editedhistory-history (delete buffer-file-name editedhistory-history) )
          ; Add to list
          (add-to-list 'editedhistory-history buffer-file-name))
        nil)   ; Return nil so we won't block writing
      (add-hook 'write-file-hooks 'editedhistory-remember-file)

      ; Load upon startup, to add hooks
      (define-minor-mode editedhistory-mode
        "Toggle editedhistory mode"
        :global t
        :group 'editedhistory

        ; Load if not yet loaded
        (pp (boundp 'editedhistory-loaded-p))
        (unless (boundp 'editedhistory-loaded-p)
          (setq editedhistory-loaded-p t)
          (pp editedhistory-loaded-p)
          ; Load log file into memory
          (editedhistory-load)))

      ; Load mode
      (editedhistory-mode t)
    )
  >
end

.unsaved_files ⇒ Object 



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# File 'lib/xiki/history.rb', line 139

def self.unsaved_files

  # Narrow down to modified buffer only
  buffers = $el.buffer_list.to_a.
    select{|b| $el.buffer_modified_p(b)}.
    select{|b| $el.buffer_file_name(b)}

  if (buffers.size == 0)
    return "- No files unsaved!\n"
  end

  txt = ""

  buffers.each do |b|
    path = $el.buffer_file_name(b)
    $el.with(:save_excursion) do
      $el.set_buffer b

      diffs = DiffLog.save_diffs :dont_log=>1

      if ! diffs
        diffs = "    | File no longer exists?\n" if ! File.exists?(path)
        diffs ||= "    | no changes\n"
      end
      diffs = diffs.sub(/^.+\n.+\n/, '').gsub /^  /, ''

      txt << "@#{path}\n"
      txt << diffs

    end
  end

  txt
end