Merge branch 'feature/due-tag' into develop

lib/github_changelog_generator/generator/generator_tags.rb

@@ -52,6 +52,7 @@ module GitHubChangelogGenerator
       [newer_tag_link, newer_tag_name, newer_tag_time]
     end
 
+    # @return [Object] try to find newest tag using #Reader and :base option if specified otherwise returns nil
     def detect_since_tag
       if @options[:base] && File.file?(@options[:base])
         reader = GitHubChangelogGenerator::Reader.new
@@ -69,6 +70,8 @@ module GitHubChangelogGenerator
       filter_excluded_tags(filtered_tags)
     end
 
+    # @param [Array] all_tags all tags
+    # @return [Array] filtered tags according :since_tag option
     def filter_since_tag(all_tags)
       filtered_tags = all_tags
       tag = @options[:since_tag]
@@ -88,6 +91,29 @@ module GitHubChangelogGenerator
       filtered_tags
     end
 
+    # @param [Array] all_tags all tags
+    # @return [Array] filtered tags according :due_tag option
+    def filter_due_tag(all_tags)
+      filtered_tags = all_tags
+      tag = @options[:due_tag]
+      if tag
+        if (all_tags.count > 0) && (all_tags.map(&:name).include? tag)
+          idx = all_tags.index { |t| t.name == tag }
+          last_index = all_tags.count - 1
+          if idx > 0 && idx < last_index
+            filtered_tags = all_tags[idx + 1..last_index]
+          else
+            filtered_tags = []
+          end
+        else
+          Helper.log.warn "Warning: can't find tag #{tag}, specified with --due-tag option."
+        end
+      end
+      filtered_tags
+    end
+
+    # @param [Array] all_tags all tags
+    # @return [Array] filtered tags according :between_tags option
     def filter_between_tags(all_tags)
       filtered_tags = all_tags
       if @options[:between_tags]
@@ -101,6 +127,8 @@ module GitHubChangelogGenerator
       filtered_tags
     end
 
+    # @param [Array] all_tags all tags
+    # @return [Array] filtered tags according :exclude_tags option
     def filter_excluded_tags(all_tags)
       filtered_tags = all_tags
       if @options[:exclude_tags]

lib/github_changelog_generator/parser.rb

@@ -119,6 +119,9 @@ module GitHubChangelogGenerator
         opts.on("--since-tag  x", "Change log will start after specified tag") do |v|
           options[:since_tag] = v
         end
+        opts.on("--due-tag  x", "Change log will end before specified tag") do |v|
+          options[:due_tag] = v
+        end
         opts.on("--max-issues [NUMBER]", Integer, "Max number of issues to fetch from GitHub. Default is unlimited") do |max|
           options[:max_issues] = max
         end

spec/unit/generator/generator_tags_spec.rb

@@ -90,18 +90,70 @@ describe GitHubChangelogGenerator::Generator do
   end
 
   describe "#filter_since_tag" do
-    subject { generator.filter_since_tag(tags_mash_from_strings(%w(1 2 3))) }
+    context "with filled array" do
+      subject { generator.filter_since_tag(tags_mash_from_strings(%w(1 2 3))) }
 
-    context "with valid since tag" do
-      let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "2") }
-      it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+      context "with valid since tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "2") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+      end
+
+      context "with invalid since tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "Invalid tag") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      end
     end
 
-    context "with invalid since tag" do
-      let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: %w(invalid tags)) }
-      it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+    context "with empty array" do
+      subject { generator.filter_since_tag(tags_mash_from_strings(%w())) }
+
+      context "with valid since tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "2") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+      end
+
+      context "with invalid since tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "Invalid tag") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+      end
+    end
+  end
+
+  describe "#filter_due_tag" do
+    context "with filled array" do
+      subject { generator.filter_due_tag(tags_mash_from_strings(%w(1 2 3))) }
+
+      context "with valid due tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "2") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w(3))) }
+      end
+
+      context "with invalid due tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "Invalid tag") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      end
+    end
+
+    context "with empty array" do
+      subject { generator.filter_due_tag(tags_mash_from_strings(%w())) }
+
+      context "with valid due tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "2") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+      end
+
+      context "with invalid due tag" do
+        let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "Invalid tag") }
+        it { is_expected.to be_a Array }
+        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+      end
     end
   end