Module: Canopus::Workspace::GitBlame

Defined in:
lib/canopus/workspace/git_blame.rb

Defined Under Namespace

Classes: GitBlameLine, GitBlameSnapshot

Constant Summary collapse

BLAME_MAX_BYTES = 
1 << 20
BLAME_MAX_LINES = 
20_000
BLAME_CACHE_LIMIT = 
16
BLAME_BUDGET = 
Porrima::Budget.new(max_bytes: 2 << 20, max_lines: BLAME_MAX_LINES)

Instance Method Summary collapse

Instance Method Details

#close_git ⇒ Object 



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# File 'lib/canopus/workspace/git_blame.rb', line 62

def close_git
  @git_blame_generation = (@git_blame_generation || 0) + 1
  jobs = [*@git_blame_jobs&.values].compact.uniq.reject { |thread| thread.equal?(Thread.current) }
  deadline = Process.clock_gettime(Process::CLOCK_MONOTONIC) + 0.1
  jobs.each do |thread|
    remaining = deadline - Process.clock_gettime(Process::CLOCK_MONOTONIC)
    break unless remaining.positive?
    thread.join(remaining)
  end
  jobs.each { |thread| thread.kill if thread.alive? }
  jobs.each(&:join)
  @git_blame_jobs&.clear
  super
end

#git_blame_decorations(buffer, rows, current = nil) ⇒ Object 



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# File 'lib/canopus/workspace/git_blame.rb', line 13

def git_blame_decorations(buffer, rows, current = nil)
  mode = @settings["git"]["inline_blame"]
  return [] if mode == "off" || !buffer.path || buffer.rope.bytesize > BLAME_MAX_BYTES ||
    buffer.line_count > BLAME_MAX_LINES
  text = buffer.text
  return [] unless git_blame_text_supported?(text)

  path = safe_git_diff_path(git_relative_path(buffer))
  key = [buffer.object_id, buffer.version, @git_generation.to_i, path].freeze
  snapshot = (@git_blame_cache ||= {})[key]
  unless snapshot
    requested = request_git_blame(buffer, path, key, text.dup.freeze)
    snapshot = requested if requested.is_a?(GitBlameSnapshot)
    return [] unless snapshot
  end
  return [] if snapshot.reason

  visible = rows.begin...[rows.end, buffer.line_count].min
  selected = if mode == "cursor"
    return [] unless current.is_a?(Editor) && current.buffer.equal?(buffer)
    row = buffer.rope.point_at(current.primary.head).row
    visible.cover?(row) ? [row] : []
  else
    visible.to_a
  end
  selected.filter_map do |row|
    next if row == buffer.line_count - 1 && buffer.line(row).empty?
    git_blame_decoration(buffer, row, snapshot.lines[row])
  end
rescue Error
  []
end

#invalidate_git ⇒ Object 



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# File 'lib/canopus/workspace/git_blame.rb', line 57

def invalidate_git
  invalidate_git_blame
  super
end

#invalidate_git_blame(buffer = nil) ⇒ Object 



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# File 'lib/canopus/workspace/git_blame.rb', line 46

def invalidate_git_blame(buffer = nil)
  @git_blame_generation = (@git_blame_generation || 0) + 1
  if buffer
    @git_blame_cache&.delete_if { |key, _| key[0] == buffer.object_id }
  else
    @git_blame_cache&.clear
  end
  @decorations.invalidate(:blame, buffer: buffer)
  nil
end