Maven migration (first draft)

legacy/utilities/ISF-transition/obsoleteUris/known_exceptions.rb

@@ -0,0 +1,101 @@
+require 'pathname'
+
+class KnownExceptionsError < StandardError; end
+
+class GlobSkipper
+  def initialize(root_path, glob)
+    @root_path = root_path
+    @glob = glob
+  end
+  
+  def relativize(path)
+    Pathname.new(path).relative_path_from(Pathname.new(@root_path)).to_s
+  end
+
+  def skip?(path, line, uri)
+    return File.fnmatch(@glob, relativize(path))
+  end
+end
+
+class ExtensionSkipper
+  def initialize(extension)
+    @extension = extension
+  end
+
+  def skip?(path, line, uri)
+    return File.extname(path) == @extension
+  end
+end 
+
+class PathSkipper
+  def initialize(root_path, relative_path)
+    @root_path = root_path
+    @absolute_path = File.expand_path(relative_path, @root_path)
+  end
+  
+  def skip?(path, line, uri)
+    return @absolute_path == File.expand_path(path, @root_path)
+  end
+end
+
+class LineSkipper
+  def initialize(root_path, relative_path, line_number)
+    @inner = PathSkipper.new(root_path, relative_path)
+    @line_number = line_number
+  end
+  
+  def skip?(path, line, uri)
+    return @inner.skip?(path, line, uri) && line == @line_number
+  end
+end
+
+class KnownExceptions
+  # ------------------------------------------------------------------------------------
+  private
+  # ------------------------------------------------------------------------------------
+  
+  def parse_file(file)
+    skippers = []
+    File.readlines(file).each do |line|
+      # ignore blank lines, and lines starting with '#' or '!'.
+      line.strip!
+      next if line.length == 0 || line[0..0] == '#' || line[0] == ?!
+
+#      if line =~ /^\.[^\/]*$/
+#        skippers << ExtensionSkipper.new(line)
+      if line =~ /^(\S+)\s*$/
+#        skippers << PathSkipper.new(@root_path, $1)
+        skippers << GlobSkipper.new(@root_path, $1)
+      elsif line =~ /^(\S+)\s*(\d+)\s*$/
+        skippers << LineSkipper.new(@root_path, $1, $2.to_i)
+      else
+        raise "BOGUS line in known_exceptions file: '#{line}'"
+      end
+    end
+    skippers
+  end
+  
+  # ------------------------------------------------------------------------------------
+  public
+  # ------------------------------------------------------------------------------------
+
+  def initialize(root_path, file)
+    @root_path = File.expand_path(root_path)
+    @skippers = parse_file(file)
+  end
+  
+  def skip?(file, line_number = -1, string = "@!#IMPOSSIBLE#!@")
+    @skippers.each() do |skipper|
+      if line_number == -1
+        next if skipper.is_a?(LineSkipper)
+      else
+        next if skipper.is_a?(ExtensionSkipper) || skipper.is_a?(PathSkipper) || skipper.is_a?(GlobSkipper)
+      end
+
+      if skipper.skip?(file, line_number, string)
+        return true
+      end
+    end
+    false
+  end
+end