Class: Listen::Record
- Inherits:
-
Object
show all
- Defined in:
- lib/listen/record/entry.rb,
lib/listen/record.rb,
lib/listen/record/symlink_detector.rb
Defined Under Namespace
Classes: Entry, SymlinkDetector
Instance Attribute Summary collapse
-
#root ⇒ Object
readonly
TODO: one Record object per watched directory? TODO: deprecate.
Instance Method Summary
collapse
Constructor Details
#initialize(directory, silencer) ⇒ Record
Returns a new instance of Record.
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# File 'lib/listen/record.rb', line 14
def initialize(directory, silencer)
reset_tree
@root = directory.to_s
@silencer = silencer
end
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Instance Attribute Details
#root ⇒ Object
TODO: one Record object per watched directory?
TODO: deprecate
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# File 'lib/listen/record.rb', line 12
def root
@root
end
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Instance Method Details
#_fast_build_dir(remaining, symlink_detector) ⇒ Object
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# File 'lib/listen/record.rb', line 103
def _fast_build_dir(remaining, symlink_detector)
entry = remaining.pop
return if @silencer.silenced?(entry.record_dir_key, :dir)
children = entry.children symlink_detector.verify_unwatched!(entry)
children.each { |child| remaining << child }
add_dir(entry.record_dir_key)
rescue Errno::ENOTDIR
_fast_try_file(entry)
rescue SystemCallError, SymlinkDetector::Error
_fast_unset_path(entry.relative, entry.name)
end
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#_fast_try_file(entry) ⇒ Object
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# File 'lib/listen/record.rb', line 117
def _fast_try_file(entry)
_fast_update_file(entry.relative, entry.name, entry.meta)
rescue SystemCallError
_fast_unset_path(entry.relative, entry.name)
end
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#_fast_unset_path(dirname, basename) ⇒ Object
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# File 'lib/listen/record.rb', line 91
def _fast_unset_path(dirname, basename)
if empty_dirname?(dirname.to_s)
if @tree.key?(basename)
@tree.delete(basename)
end
elsif @tree.key?(dirname)
@tree[dirname].delete(basename)
end
end
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#_fast_update_file(dirname, basename, data) ⇒ Object
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# File 'lib/listen/record.rb', line 83
def _fast_update_file(dirname, basename, data)
if empty_dirname?(dirname.to_s)
@tree[basename] = @tree[basename].merge(data)
else
@tree[dirname][basename] = (@tree[dirname][basename] || {}).merge(data)
end
end
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#add_dir(rel_path) ⇒ Object
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# File 'lib/listen/record.rb', line 20
def add_dir(rel_path)
if !empty_dirname?(rel_path.to_s)
@tree[rel_path.to_s]
end
end
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#build ⇒ Object
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# File 'lib/listen/record.rb', line 62
def build
reset_tree
symlink_detector = SymlinkDetector.new
remaining = ::Queue.new
remaining << Entry.new(root, nil, nil)
_fast_build_dir(remaining, symlink_detector) until remaining.empty?
end
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#dir_entries(rel_path) ⇒ Object
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# File 'lib/listen/record.rb', line 46
def dir_entries(rel_path)
rel_path_s = rel_path.to_s
subtree = if empty_dirname?(rel_path_s)
@tree
else
@tree[rel_path_s]
end
subtree.each_with_object({}) do |(key, values), result|
if values.is_a?(Hash)
result[key] = values.has_key?(:mtime) ? values : {}
end
end
end
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#empty_dirname?(dirname) ⇒ Boolean
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# File 'lib/listen/record.rb', line 75
def empty_dirname?(dirname)
['.', ''].include?(dirname)
end
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#file_data(rel_path) ⇒ Object
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# File 'lib/listen/record.rb', line 36
def file_data(rel_path)
dirname, basename = Pathname(rel_path).split.map(&:to_s)
if empty_dirname?(dirname)
@tree[basename].dup
else
@tree[dirname][basename] ||= {}
@tree[dirname][basename].dup
end
end
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#reset_tree ⇒ Object
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# File 'lib/listen/record.rb', line 79
def reset_tree
@tree = Hash.new { |h, k| h[k] = {} }
end
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#unset_path(rel_path) ⇒ Object
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# File 'lib/listen/record.rb', line 31
def unset_path(rel_path)
dirname, basename = Pathname(rel_path).split.map(&:to_s)
_fast_unset_path(dirname, basename)
end
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#update_file(rel_path, data) ⇒ Object
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# File 'lib/listen/record.rb', line 26
def update_file(rel_path, data)
dirname, basename = Pathname(rel_path).split.map(&:to_s)
_fast_update_file(dirname, basename, data)
end
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