Merge branch 'fj-34526-enabling-wiki-search-by-title' into 'master'

Add ability to search wiki titles

Closes #34526

See merge request gitlab-org/gitlab-ce!19112

14 files changed, 159 insertions, 107 deletions

diff --git a/app/helpers/search_helper.rb b/app/helpers/search_helper.rb
index 761c1252fc8..f7dafca7834 100644
--- a/app/helpers/search_helper.rb
+++ b/app/helpers/search_helper.rb
@@ -25,14 +25,22 @@ module SearchHelper
     return unless collection.count > 0
 
     from = collection.offset_value + 1
-    to = collection.offset_value + collection.length
+    to = collection.offset_value + collection.count
     count = collection.total_count
 
     "Showing #{from} - #{to} of #{count} #{scope.humanize(capitalize: false)} for \"#{term}\""
   end
 
+  def find_project_for_result_blob(result)
+    @project
+  end
+
   def parse_search_result(result)
-    Gitlab::ProjectSearchResults.parse_search_result(result)
+    result
+  end
+
+  def search_blob_title(project, filename)
+    filename
   end
 
   private
diff --git a/app/models/project_wiki.rb b/app/models/project_wiki.rb
index f799a0b4227..a6f94b3e3b0 100644
--- a/app/models/project_wiki.rb
+++ b/app/models/project_wiki.rb
@@ -140,10 +140,6 @@ class ProjectWiki
     [title, title_array.join("/")]
   end
 
-  def search_files(query)
-    repository.search_files_by_content(query, default_branch)
-  end
-
   def repository
     @repository ||= Repository.new(full_path, @project, disk_path: disk_path, is_wiki: true)
   end
diff --git a/app/views/search/results/_blob.html.haml b/app/views/search/results/_blob.html.haml
index de473c23d66..fdcd126e7a3 100644
--- a/app/views/search/results/_blob.html.haml
+++ b/app/views/search/results/_blob.html.haml
@@ -1,13 +1,5 @@
-- file_name, blob = blob
-.blob-result
-  .file-holder
-    .js-file-title.file-title
-      - ref = @search_results.repository_ref
-      - blob_link = project_blob_path(@project, tree_join(ref, file_name))
-      = link_to blob_link do
-        %i.fa.fa-file
-        %strong
-          = file_name
-    - if blob
-      .file-content.code.term
-        = render 'shared/file_highlight', blob: blob, first_line_number: blob.startline, blob_link: blob_link
+- project = find_project_for_result_blob(blob)
+- file_name, blob = parse_search_result(blob)
+- blob_link = project_blob_path(project, tree_join(blob.ref, file_name))
+
+= render partial: 'search/results/blob_data', locals: { blob: blob, project: project, file_name: file_name, blob_link: blob_link }
diff --git a/app/views/search/results/_blob_data.html.haml b/app/views/search/results/_blob_data.html.haml
new file mode 100644
index 00000000000..0115be41ff1
--- /dev/null
+++ b/app/views/search/results/_blob_data.html.haml
@@ -0,0 +1,9 @@
+.blob-result
+  .file-holder
+    .js-file-title.file-title
+      = link_to blob_link do
+        %i.fa.fa-file
+        = search_blob_title(project, file_name)
+    - if blob.data
+      .file-content.code.term
+        = render 'shared/file_highlight', blob: blob, first_line_number: blob.startline
diff --git a/app/views/search/results/_wiki_blob.html.haml b/app/views/search/results/_wiki_blob.html.haml
index 16a0e432d62..4346217c230 100644
--- a/app/views/search/results/_wiki_blob.html.haml
+++ b/app/views/search/results/_wiki_blob.html.haml
@@ -1,10 +1,5 @@
-- wiki_blob = parse_search_result(wiki_blob)
-.blob-result
-  .file-holder
-    .js-file-title.file-title
-      = link_to project_wiki_path(@project, wiki_blob.basename) do
-        %i.fa.fa-file
-        %strong
-          = wiki_blob.basename
-    .file-content.code.term
-      = render 'shared/file_highlight', blob: wiki_blob, first_line_number: wiki_blob.startline
+- project = find_project_for_result_blob(wiki_blob)
+- file_name, wiki_blob = parse_search_result(wiki_blob)
+- wiki_blob_link = project_wiki_path(project, wiki_blob.basename)
+
+= render partial: 'search/results/blob_data', locals: { blob: wiki_blob, project: project, file_name: file_name, blob_link: wiki_blob_link }
diff --git a/changelogs/unreleased/fj-34526-enabling-wiki-search-by-title.yml b/changelogs/unreleased/fj-34526-enabling-wiki-search-by-title.yml
new file mode 100644
index 00000000000..2ae2cf8a23e
--- /dev/null
+++ b/changelogs/unreleased/fj-34526-enabling-wiki-search-by-title.yml
@@ -0,0 +1,5 @@
+---
+title: Added ability to search by wiki titles
+merge_request: 19112
+author:
+type: added
diff --git a/lib/api/search.rb b/lib/api/search.rb
index 5d9ec617cb7..37fbabe419c 100644
--- a/lib/api/search.rb
+++ b/lib/api/search.rb
@@ -34,9 +34,7 @@ module API
 
       def process_results(results)
         case params[:scope]
-        when 'wiki_blobs'
-          paginate(results).map { |blob| Gitlab::ProjectSearchResults.parse_search_result(blob, user_project) }
-        when 'blobs'
+        when 'blobs', 'wiki_blobs'
           paginate(results).map { |blob| blob[1] }
         else
           paginate(results)
diff --git a/lib/gitlab/file_finder.rb b/lib/gitlab/file_finder.rb
index 8c082c0c336..f42088f980e 100644
--- a/lib/gitlab/file_finder.rb
+++ b/lib/gitlab/file_finder.rb
@@ -32,17 +32,13 @@ module Gitlab
     end
 
     def find_by_filename(query, except: [])
-      filenames = repository.search_files_by_name(query, ref).first(BATCH_SIZE)
-      filenames.delete_if { |filename| except.include?(filename) } unless except.empty?
+      filenames = search_filenames(query, except)
 
-      blob_refs = filenames.map { |filename| [ref, filename] }
-      blobs = Gitlab::Git::Blob.batch(repository, blob_refs, blob_size_limit: 1024)
-
-      blobs.map do |blob|
+      blobs(filenames).map do |blob|
         Gitlab::SearchResults::FoundBlob.new(
           id: blob.id,
           filename: blob.path,
-          basename: File.basename(blob.path),
+          basename: File.basename(blob.path, File.extname(blob.path)),
           ref: ref,
           startline: 1,
           data: blob.data,
@@ -50,5 +46,21 @@ module Gitlab
         )
       end
     end
+
+    def search_filenames(query, except)
+      filenames = repository.search_files_by_name(query, ref).first(BATCH_SIZE)
+
+      filenames.delete_if { |filename| except.include?(filename) } unless except.empty?
+
+      filenames
+    end
+
+    def blob_refs(filenames)
+      filenames.map { |filename| [ref, filename] }
+    end
+
+    def blobs(filenames)
+      Gitlab::Git::Blob.batch(repository, blob_refs(filenames), blob_size_limit: 1024)
+    end
   end
 end
diff --git a/lib/gitlab/project_search_results.rb b/lib/gitlab/project_search_results.rb
index 2e9b6e302f5..38bdc61d8ab 100644
--- a/lib/gitlab/project_search_results.rb
+++ b/lib/gitlab/project_search_results.rb
@@ -106,7 +106,8 @@ module Gitlab
           project_wiki = ProjectWiki.new(project)
 
           unless project_wiki.empty?
-            project_wiki.search_files(query)
+            ref = repository_ref || project.wiki.default_branch
+            Gitlab::WikiFileFinder.new(project, ref).find(query)
           else
             []
           end
diff --git a/lib/gitlab/wiki_file_finder.rb b/lib/gitlab/wiki_file_finder.rb
new file mode 100644
index 00000000000..f97278f05cd
--- /dev/null
+++ b/lib/gitlab/wiki_file_finder.rb
@@ -0,0 +1,23 @@
+module Gitlab
+  class WikiFileFinder < FileFinder
+    attr_reader :repository
+
+    def initialize(project, ref)
+      @project = project
+      @ref = ref
+      @repository = project.wiki.repository
+    end
+
+    private
+
+    def search_filenames(query, except)
+      safe_query = Regexp.escape(query.tr(' ', '-'))
+      safe_query = Regexp.new(safe_query, Regexp::IGNORECASE)
+      filenames = repository.ls_files(ref)
+
+      filenames.delete_if { |filename| except.include?(filename) } unless except.empty?
+
+      filenames.grep(safe_query).first(BATCH_SIZE)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/file_finder_spec.rb b/spec/lib/gitlab/file_finder_spec.rb
index 07cb10e563e..d6d9e4001a3 100644
--- a/spec/lib/gitlab/file_finder_spec.rb
+++ b/spec/lib/gitlab/file_finder_spec.rb
@@ -3,27 +3,11 @@ require 'spec_helper'
 describe Gitlab::FileFinder do
   describe '#find' do
     let(:project) { create(:project, :public, :repository) }
-    let(:finder) { described_class.new(project, project.default_branch) }
 
-    it 'finds by name' do
-      results = finder.find('files')
-
-      filename,  blob = results.find { |_, blob| blob.filename == 'files/images/wm.svg' }
-      expect(filename).to eq('files/images/wm.svg')
-      expect(blob).to be_a(Gitlab::SearchResults::FoundBlob)
-      expect(blob.ref).to eq(finder.ref)
-      expect(blob.data).not_to be_empty
-    end
-
-    it 'finds by content' do
-      results = finder.find('files')
-
-      filename, blob = results.find { |_, blob| blob.filename == 'CHANGELOG' }
-
-      expect(filename).to eq('CHANGELOG')
-      expect(blob).to be_a(Gitlab::SearchResults::FoundBlob)
-      expect(blob.ref).to eq(finder.ref)
-      expect(blob.data).not_to be_empty
+    it_behaves_like 'file finder' do
+      subject { described_class.new(project, project.default_branch) }
+      let(:expected_file_by_name) { 'files/images/wm.svg' }
+      let(:expected_file_by_content) { 'CHANGELOG' }
     end
   end
 end
diff --git a/spec/lib/gitlab/project_search_results_spec.rb b/spec/lib/gitlab/project_search_results_spec.rb
index e3f705d2299..50224bde722 100644
--- a/spec/lib/gitlab/project_search_results_spec.rb
+++ b/spec/lib/gitlab/project_search_results_spec.rb
@@ -22,47 +22,57 @@ describe Gitlab::ProjectSearchResults do
     it { expect(results.query).to eq('hello world') }
   end
 
-  describe 'blob search' do
-    let(:project) { create(:project, :public, :repository) }
-
-    subject(:results) { described_class.new(user, project, 'files').objects('blobs') }
-
-    context 'when repository is disabled' do
-      let(:project) { create(:project, :public, :repository, :repository_disabled) }
+  shared_examples 'general blob search' do |entity_type, blob_kind|
+    let(:query) { 'files' }
+    subject(:results) { described_class.new(user, project, query).objects(blob_type) }
 
-      it 'hides blobs from members' do
+    context "when #{entity_type} is disabled" do
+      let(:project) { disabled_project }
+      it "hides #{blob_kind} from members" do
         project.add_reporter(user)
 
         is_expected.to be_empty
       end
 
-      it 'hides blobs from non-members' do
+      it "hides #{blob_kind} from non-members" do
         is_expected.to be_empty
       end
     end
 
-    context 'when repository is internal' do
-      let(:project) { create(:project, :public, :repository, :repository_private) }
+    context "when #{entity_type} is internal" do
+      let(:project) { private_project }
 
-      it 'finds blobs for members' do
+      it "finds #{blob_kind} for members" do
         project.add_reporter(user)
 
         is_expected.not_to be_empty
       end
 
-      it 'hides blobs from non-members' do
+      it "hides #{blob_kind} from non-members" do
         is_expected.to be_empty
       end
     end
 
     it 'finds by name' do
-      expect(results.map(&:first)).to include('files/images/wm.svg')
+      expect(results.map(&:first)).to include(expected_file_by_name)
     end
 
     it 'finds by content' do
-      blob = results.select { |result| result.first == "CHANGELOG" }.flatten.last
+      blob = results.select { |result| result.first == expected_file_by_content }.flatten.last
 
-      expect(blob.filename).to eq("CHANGELOG")
+      expect(blob.filename).to eq(expected_file_by_content)
+    end
+  end
+
+  describe 'blob search' do
+    let(:project) { create(:project, :public, :repository) }
+
+    it_behaves_like 'general blob search', 'repository', 'blobs' do
+      let(:blob_type) { 'blobs' }
+      let(:disabled_project) { create(:project, :public, :repository, :repository_disabled) }
+      let(:private_project) { create(:project, :public, :repository, :repository_private) }
+      let(:expected_file_by_name) { 'files/images/wm.svg' }
+      let(:expected_file_by_content) { 'CHANGELOG' }
     end
 
     describe 'parsing results' do
@@ -189,40 +199,18 @@ describe Gitlab::ProjectSearchResults do
   describe 'wiki search' do
     let(:project) { create(:project, :public, :wiki_repo) }
     let(:wiki) { build(:project_wiki, project: project) }
-    let!(:wiki_page) { wiki.create_page('Title', 'Content') }
-
-    subject(:results) { described_class.new(user, project, 'Content').objects('wiki_blobs') }
-
-    context 'when wiki is disabled' do
-      let(:project) { create(:project, :public, :wiki_repo, :wiki_disabled) }
 
-      it 'hides wiki blobs from members' do
-        project.add_reporter(user)
-
-        is_expected.to be_empty
-      end
-
-      it 'hides wiki blobs from non-members' do
-        is_expected.to be_empty
-      end
-    end
-
-    context 'when wiki is internal' do
-      let(:project) { create(:project, :public, :wiki_repo, :wiki_private) }
-
-      it 'finds wiki blobs for guest' do
-        project.add_guest(user)
-
-        is_expected.not_to be_empty
-      end
-
-      it 'hides wiki blobs from non-members' do
-        is_expected.to be_empty
-      end
+    before do
+      wiki.create_page('Files/Title', 'Content')
+      wiki.create_page('CHANGELOG', 'Files example')
     end
 
-    it 'finds by content' do
-      expect(results).to include("master:Title.md\x001\x00Content\n")
+    it_behaves_like 'general blob search', 'wiki', 'wiki blobs' do
+      let(:blob_type) { 'wiki_blobs' }
+      let(:disabled_project) { create(:project, :public, :wiki_repo, :wiki_disabled) }
+      let(:private_project) { create(:project, :public, :wiki_repo, :wiki_private) }
+      let(:expected_file_by_name) { 'Files/Title.md' }
+      let(:expected_file_by_content) { 'CHANGELOG.md' }
     end
   end
 
diff --git a/spec/lib/gitlab/wiki_file_finder_spec.rb b/spec/lib/gitlab/wiki_file_finder_spec.rb
new file mode 100644
index 00000000000..025d1203dc5
--- /dev/null
+++ b/spec/lib/gitlab/wiki_file_finder_spec.rb
@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe Gitlab::WikiFileFinder do
+  describe '#find' do
+    let(:project) { create(:project, :public, :wiki_repo) }
+    let(:wiki) { build(:project_wiki, project: project) }
+
+    before do
+      wiki.create_page('Files/Title', 'Content')
+      wiki.create_page('CHANGELOG', 'Files example')
+    end
+
+    it_behaves_like 'file finder' do
+      subject { described_class.new(project, project.wiki.default_branch) }
+
+      let(:expected_file_by_name) { 'Files/Title.md' }
+      let(:expected_file_by_content) { 'CHANGELOG.md' }
+    end
+  end
+end
diff --git a/spec/support/shared_examples/file_finder.rb b/spec/support/shared_examples/file_finder.rb
new file mode 100644
index 00000000000..ef144bdf61c
--- /dev/null
+++ b/spec/support/shared_examples/file_finder.rb
@@ -0,0 +1,21 @@
+shared_examples 'file finder' do
+  let(:query) { 'files' }
+  let(:search_results) { subject.find(query) }
+
+  it 'finds by name' do
+    filename,  blob = search_results.find { |_, blob| blob.filename == expected_file_by_name }
+    expect(filename).to eq(expected_file_by_name)
+    expect(blob).to be_a(Gitlab::SearchResults::FoundBlob)
+    expect(blob.ref).to eq(subject.ref)
+    expect(blob.data).not_to be_empty
+  end
+
+  it 'finds by content' do
+    filename, blob = search_results.find { |_, blob| blob.filename == expected_file_by_content }
+
+    expect(filename).to eq(expected_file_by_content)
+    expect(blob).to be_a(Gitlab::SearchResults::FoundBlob)
+    expect(blob.ref).to eq(subject.ref)
+    expect(blob.data).not_to be_empty
+  end
+end