Added the possibility to define a filter file

README.md

@@ -21,12 +21,13 @@ Or install it yourself as:
 ## Usage
 
 ```
-pod ack-filter PATTERN [--input=FILENAME] [--output=FILENAME]
+pod ack-filter PATTERN [--input=FILENAME] [--output=FILENAME] [--filterfile=FILENAME]
 ```
 
 - PATTERN is regexp pattern string
 - --input is input acknowledgements.plist filename
 - --output is output filename
+- --filterfile is a file containing a regular expression for filtering (e.g. "Pod1|Pod2" filters all occurrences of the string Pod1 and Pod2)
 
 ### Example
 
@@ -40,6 +41,11 @@ pod ack-filter MyCompany --output=Filtered.plist
 # => Licenses which includes "MyCompany" are filtered out and output to "Filtered.plist"
 ```
 
+```
+pod ack-filter --input=unfiltered.plist --output=filtered.plist --filterfile=filterfile
+# => Regular expression from "filterfile" is used to filter "unfiltered.plist" and save it to "filtered.plist"
+```
+
 Also, you can use ack_filter within Podfile.
 
 ```

lib/pod/command/ack_filter.rb

@@ -11,7 +11,8 @@ class AckFilter < Command
 
       def self.options
         [['--input=FILE_PATH', 'Read acknowledgements file from FILE_PATH'],
-         ['--output=FILENAME', 'Output filtered acknowledgements to FILENAME']]
+         ['--output=FILENAME', 'Output filtered acknowledgements to FILENAME'],
+         ['--filterfile=FILENAME', 'Read a Regex filter from FILENAME']]
       end
 
       def self.filter(args, &block)
@@ -20,23 +21,25 @@ def self.filter(args, &block)
 
       def initialize(argv, &block)
         if argv.kind_of?(CLAide::ARGV)
-          @pattern = Regexp.new(argv.shift_argument) unless argv.empty?
+          @pattern = Regexp.new(argv.shift_argument) unless argv.empty? || argv.shift_argument == nil
           @input = argv.option('input')
           @filename = argv.option('output')
+          @filterfile = argv.option('filterfile')
           super
         else
           if argv[:pattern]
             @pattern = argv[:pattern].kind_of?(Regexp) ? argv[:pattern] : Regexp.new(argv[:pattern])
           end
           @input = argv[:input]
           @filename = argv[:output]
+          @filterfile = argv[:filterfile]
           @filter_block = block
         end
       end
 
       def validate!
         super
-        help! 'Specify filtering pattern' if !@pattern && !@filter_block
+        help! 'Specify filtering pattern' if !@pattern && !@filter_block && !@filterfile
       end
 
       def input
@@ -50,9 +53,14 @@ def output_filename
       def run
         plist = CFPropertyList::List.new(file: input)
         specs = plist.value.value['PreferenceSpecifiers']
+        if @filterfile
+          filter = File.read(@filterfile)
+        end
         specs.value.reject! do |spec|
           if @filter_block
             @filter_block.call(spec.value['FooterText'].value)
+          elsif filter
+            spec.value['FooterText'].value =~ Regexp.new(filter)
           else
             spec.value['FooterText'].value =~ @pattern
           end