version.rb in makit-0.0.40

- old
+ new
@@ -1,12 +1,52 @@
 # frozen_string_literal: true
 
 module Makit
-  VERSION = "0.0.39"
+  VERSION = "0.0.40"
 
   class Version
     # given an array of version strings, return the highest version
     def self.get_highest_version(versions)
       versions.sort { |a, b| Gem::Version.new(a) <=> Gem::Version.new(b) }.last
+    end
+
+    def self.get_version_from_file(path)
+      if(!File.exist?(path))
+        raise "file #{path}does not exist"
+      end
+
+      extension = File.extname(path)
+      #switch = extension.downcase
+      #case switch
+      #if extension == ".csproj"
+      switch = extension.downcase
+      case switch
+      when ".csproj"
+        Makit::Version.detect_from_file(path, /<Version>([-\w\d.]+)</)
+      when ".wxs"
+        Makit::Version.detect_from_file(path, / Version="([\d\.]+)"/)
+      else 
+        raise "unrecognized file type"
+      end
+    end
+
+    def self.detect_from_file(filename, regex)
+      if File.exist?(filename)
+        match = IO.read(filename).match(regex)
+        match.captures[0] if !match.nil? && match.captures.length.positive?
+      else
+        raise "unable to find version in #{filename}"
+      end
+    end
+
+    def self.set_version_in_file(filename, version)
+      text = IO.read(filename)
+      new_text = text
+      new_text = text.gsub(/version\s?=\s?['|"]([.\d]+)['|"]/, "version='#{version}'") if filename.include?(".gemspec")
+      new_text = text.gsub(/<Version>([-\w\d.]+)</, "<Version>#{version}<") if filename.include?(".csproj")
+      new_text = text.gsub(/<version>([-\w\d.]+)</, "<version>#{version}<") if filename.include?(".nuspec")
+      new_text = text.gsub(/ Version="([\d\.]+)"/, " Version=\"#{version}\"") if filename.include?(".wxs")
+      new_text = text.gsub(/version\s+=\s+['"]([\w.]+)['"]/, "version=\"#{version}\"") if filename.include?(".toml")
+      File.open(filename, "w") { |f| f.write(new_text) } if new_text != text
     end
   end
 end