Class: SourceAnnotationExtractor
- Defined in:
- lib/source_annotation_extractor.rb
Overview
Implements the logic behind the rake tasks for annotations like
rake notes
rake notes:optimize
and friends. See rake -T notes
and erailties/lib/tasks/annotations.rake
.
Annotation objects are triplets :line
, :tag
, :text
that represent the line where the annotation lives, its tag, and its text. Note the filename is not stored.
Annotations are looked for in comments and modulus whitespace they have to start with the tag optionally followed by a colon. Everything up to the end of the line (or closing ERb comment tag) is considered to be their text.
Defined Under Namespace
Classes: Annotation
Instance Attribute Summary collapse
-
#tag ⇒ Object
readonly
Returns the value of attribute tag.
Class Method Summary collapse
-
.enumerate(tag, options = {}) ⇒ Object
Prints all annotations with tag
tag
under the root directoriesapp
,lib
, andtest
(recursively).
Instance Method Summary collapse
-
#display(results, options = {}) ⇒ Object
Prints the mapping from filenames to annotations in
results
ordered by filename. -
#extract_annotations_from(file, pattern) ⇒ Object
If
file
is the filename of a file that contains annotations this method returns a hash with a single entry that mapsfile
to an array of its annotations. -
#find(dirs = %w(app lib test))) ⇒ Object
Returns a hash that maps filenames under
dirs
(recursively) to arrays with their annotations. -
#find_in(dir) ⇒ Object
Returns a hash that maps filenames under
dir
(recursively) to arrays with their annotations. -
#initialize(tag) ⇒ SourceAnnotationExtractor
constructor
A new instance of SourceAnnotationExtractor.
Constructor Details
#initialize(tag) ⇒ SourceAnnotationExtractor
Returns a new instance of SourceAnnotationExtractor.
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# File 'lib/source_annotation_extractor.rb', line 44 def initialize(tag) @tag = tag end |
Instance Attribute Details
#tag ⇒ Object (readonly)
Returns the value of attribute tag.
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# File 'lib/source_annotation_extractor.rb', line 42 def tag @tag end |
Class Method Details
.enumerate(tag, options = {}) ⇒ Object
Prints all annotations with tag tag
under the root directories app
, lib
, and test
(recursively). Only filenames with extension .builder
, .rb
, .rxml
, .rhtml
, or .erb
are taken into account. The options
hash is passed to each annotation’s to_s
.
This class method is the single entry point for the rake tasks.
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# File 'lib/source_annotation_extractor.rb', line 37 def self.enumerate(tag, ={}) extractor = new(tag) extractor.display(extractor.find, ) end |
Instance Method Details
#display(results, options = {}) ⇒ Object
Prints the mapping from filenames to annotations in results
ordered by filename. The options
hash is passed to each annotation’s to_s
.
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# File 'lib/source_annotation_extractor.rb', line 93 def display(results, ={}) results.keys.sort.each do |file| puts "#{file}:" results[file].each do |note| puts " * #{note.to_s()}" end puts end end |
#extract_annotations_from(file, pattern) ⇒ Object
If file
is the filename of a file that contains annotations this method returns a hash with a single entry that maps file
to an array of its annotations. Otherwise it returns an empty hash.
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# File 'lib/source_annotation_extractor.rb', line 81 def extract_annotations_from(file, pattern) lineno = 0 result = File.readlines(file).inject([]) do |list, line| lineno += 1 next list unless line =~ pattern list << Annotation.new(lineno, $1, $2) end result.empty? ? {} : { file => result } end |
#find(dirs = %w(app lib test))) ⇒ Object
Returns a hash that maps filenames under dirs
(recursively) to arrays with their annotations. Only files with annotations are included, and only those with extension .builder
, .rb
, .rxml
, .rhtml
, and .erb
are taken into account.
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# File 'lib/source_annotation_extractor.rb', line 52 def find(dirs=%w(app lib test)) dirs.inject({}) { |h, dir| h.update(find_in(dir)) } end |
#find_in(dir) ⇒ Object
Returns a hash that maps filenames under dir
(recursively) to arrays with their annotations. Only files with annotations are included, and only those with extension .builder
, .rb
, .rxml
, .rhtml
, and .erb
are taken into account.
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# File 'lib/source_annotation_extractor.rb', line 60 def find_in(dir) results = {} Dir.glob("#{dir}/*") do |item| next if File.basename(item)[0] == ?. if File.directory?(item) results.update(find_in(item)) elsif item =~ /\.(builder|(r(?:b|xml|js)))$/ results.update(extract_annotations_from(item, /#\s*(#{tag}):?\s*(.*)$/)) elsif item =~ /\.(rhtml|erb)$/ results.update(extract_annotations_from(item, /<%\s*#\s*(#{tag}):?\s*(.*?)\s*%>/)) end end results end |