support for hiera datadir

lib/puppet-lint/plugins/check_ghostbuster_hiera_files.rb

@@ -13,13 +13,26 @@ def load_data(path, content)
 end
 
 PuppetLint.new_check(:ghostbuster_hiera_files) do
+  def hiera
+    @hiera ||= YAML.load_file(ENV['HIERA_YAML_PATH'] || '/etc/puppetlabs/code/hiera.yaml')
+  end
+
+  def default_datadir
+    (hiera.dig('defaults', 'datadir') || 'hieradata')
+  end
+
+  def path_in_datadirs?(path)
+    @data_dirs ||= hiera['hierarchy'].map { |h| (h['datadir'] || default_datadir).chomp('/') }.uniq
+    return path.match?(%{\./#{Regexp.union(@data_dirs)}/})
+  end
+
   def regexprs
-    hiera_yaml_file = ENV['HIERA_YAML_PATH'] || '/etc/puppetlabs/code/hiera.yaml'
-    hiera = YAML.load_file(hiera_yaml_file)
     regs = {}
     hiera['hierarchy'].each do |hierarchy|
+      path_datadir = Regexp.escape((hierarchy['datadir'] || default_datadir).chomp('/'))
       ([*hierarchy['path']] + [*hierarchy['paths']]).each do |level|
-        regex = level.gsub(/%\{(::)?(trusted|server_facts|facts)\.[^\}]+\}/, '(.+)').gsub(/%\{[^\}]+\}/, '.+')
+        level = File.join(path_datadir, level)
+        regex = Regexp.new(level.gsub(/%\{(::)?(trusted|server_facts|facts)\.[^\}]+\}/, '(.+)').gsub(/%\{[^\}]+\}/, '.+'))
         facts = level.match(regex).captures.map { |f| f[/%{(::)?(trusted|server_facts|facts)\.(.+)}/, 3] }
         regs[regex] = facts
       end
@@ -28,14 +41,14 @@ def regexprs
   end
 
   def check
-    return if path.match(%r{./hieradata/.*\.yaml}).nil?
+    return unless path_in_datadirs? path
 
     puppetdb = PuppetGhostbuster::PuppetDB.new
-    _path = path.gsub('./hieradata/', '')
 
     regexprs.each do |k, v|
-      m = _path.match(Regexp.new(k))
+      m = path.match(k)
       next if m.nil?
+
       return if m.captures.size == 0
 
       if m.captures.size > 1
@@ -68,7 +81,7 @@ def check
     end
 
     notify :warning, {
-      message: "Hiera File #{_path} seems unused",
+      message: "Hiera File #{path} seems unused",
       line: 1,
       column: 1,
     }

spec/fixtures/hiera.yaml

@@ -1,6 +1,12 @@
 ---
 version: 5
+defaults:
+  datadir: data
 hierarchy:
+  - name: "Some other location"
+    datadir: private/
+    path: "nodes/%{trusted.certname}.eyaml"
+
   - name: "Per-node data (yaml version)"
     path: "nodes/%{trusted.certname}.yaml"
 

spec/puppet-lint/plugins/ghostbuster_hiera_files_spec.rb

@@ -9,71 +9,95 @@
 
   context 'with fix disabled' do
     context 'when a certname file is NOT used' do
-      let(:path) { './hieradata/nodes/foo.example.com.yaml' }
+      let(:path) { './data/nodes/foo.example.com.yaml' }
 
       it 'detects one problem' do
         expect(problems.size).to eq(1)
       end
 
       it 'creates a warning' do
-        expect(problems).to contain_warning('Hiera File nodes/foo.example.com.yaml seems unused')
+        expect(problems).to contain_warning("Hiera File #{path} seems unused")
       end
     end
 
     context 'when a certname file is used' do
-      let(:path) { './hieradata/nodes/bar.example.com.yaml' }
+      let(:path) { './data/nodes/bar.example.com.yaml' }
 
       it 'does not detect any problem' do
         expect(problems.size).to eq(0)
       end
     end
 
     context 'when an environment file is NOT used' do
-      let(:path) { './hieradata/environment/foo.yaml' }
+      let(:path) { './data/environment/foo.yaml' }
 
       it 'detects one problem' do
         expect(problems.size).to eq(1)
       end
 
       it 'creates a warning' do
-        expect(problems).to contain_warning('Hiera File environment/foo.yaml seems unused')
+        expect(problems).to contain_warning("Hiera File #{path} seems unused")
       end
     end
 
     context 'when an environment file is used' do
-      let(:path) { './hieradata/environment/production.yaml' }
+      let(:path) { './data/environment/production.yaml' }
 
       it 'does not detect any problem' do
         expect(problems.size).to eq(0)
       end
     end
 
     context 'when an fact is NOT used' do
-      let(:path) { './hieradata/virtual/false.yaml' }
+      let(:path) { './data/virtual/false.yaml' }
 
       it 'detects one problem' do
         expect(problems.size).to eq(1)
       end
 
       it 'creates a warning' do
-        expect(problems).to contain_warning('Hiera File virtual/false.yaml seems unused')
+        expect(problems).to contain_warning("Hiera File #{path} seems unused")
       end
     end
 
     context 'when an fact file is used' do
-      let(:path) { './hieradata/virtual/true.yaml' }
+      let(:path) { './data/virtual/true.yaml' }
 
       it 'does not detect any problem' do
         expect(problems.size).to eq(0)
       end
     end
 
+    context 'when an fact file is used with wrong extension' do
+      let(:path) { './data/virtual/true.eyaml' }
+
+      it 'detects one problem' do
+        expect(problems.size).to eq(1)
+      end
+
+      it 'creates a warning' do
+        expect(problems).to contain_warning("Hiera File #{path} seems unused")
+      end
+    end
+
     context 'when using a variable in hierarchy' do
-      let(:path) { './hieradata/domain/example.com.yaml' }
+      let(:path) { './data/domain/example.com.yaml' }
 
       it 'does not detect any problem' do
         expect(problems.size).to eq(0)
       end
     end
+
+    context 'when hierarchy datadir is NOT default and NOT used' do
+      let(:path) { './private/nodes/privates.example.com.eyaml' }
+
+      it 'detects one problem' do
+        expect(problems.size).to eq(1)
+      end
+
+      it 'creates a warning' do
+        expect(problems).to contain_warning("Hiera File #{path} seems unused")
+      end
+    end
   end
 end