Introduce the i18n-tasks gem

Gemfile

@@ -65,4 +65,5 @@ group :development, :test do
   gem 'faker'
   gem 'capybara'
   gem 'simplecov'
+  gem 'i18n-tasks'
 end

Gemfile.lock

@@ -107,6 +107,10 @@ GEM
     devise-i18n (0.12.0)
     diff-lcs (1.2.5)
     docile (1.1.5)
+    easy_translate (0.5.0)
+      json
+      thread
+      thread_safe
     erubis (2.7.0)
     execjs (2.5.0)
     factory_girl (4.5.0)
@@ -139,10 +143,19 @@ GEM
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
+    highline (1.7.2)
     hike (1.2.3)
     hirb (0.7.3)
     hitimes (1.2.2)
     i18n (0.7.0)
+    i18n-tasks (0.8.2)
+      activesupport
+      easy_translate (>= 0.5.0)
+      erubis
+      highline
+      i18n
+      term-ansicolor
+      terminal-table
     i18n_data (0.6.3)
     jquery-datatables-rails (3.2.0)
       actionpack (>= 3.1)
@@ -306,14 +319,19 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     temple (0.7.5)
+    term-ansicolor (1.3.0)
+      tins (~> 1.0)
+    terminal-table (1.4.5)
     therubyracer (0.12.2)
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
+    thread (0.2.0)
     thread_safe (0.3.5)
     tilt (1.4.1)
     timers (4.0.1)
       hitimes
+    tins (1.3.5)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     uglifier (2.7.1)
@@ -347,6 +365,7 @@ DEPENDENCIES
   globalize
   guard-rspec
   hirb
+  i18n-tasks
   jquery-datatables-rails
   jquery-rails
   morrisjs-rails

config/i18n-tasks.yml

@@ -0,0 +1,102 @@
+# i18n-tasks finds and manages missing and unused translations: https://github.com/glebm/i18n-tasks
+
+# The "main" locale.
+base_locale: bg
+## All available locales are inferred from the data by default. Alternatively, specify them explicitly:
+# locales: [es, fr]
+## Reporting locale, default: en. Available: en, ru.
+# internal_locale: en
+
+# Read and write translations.
+data:
+  ## Translations are read from the file system. Supported format: YAML, JSON.
+  ## Provide a custom adapter:
+  # adapter: I18n::Tasks::Data::FileSystem
+
+  # Locale files or `File.find` patterns where translations are read from:
+  read:
+    ## Default:
+    # - config/locales/%{locale}.yml
+    ## More files:
+    # - config/locales/**/*.%{locale}.yml
+    ## Another gem:
+    # - "<%= %x[bundle show vagrant].chomp %>/templates/locales/%{locale}.yml"
+
+  # Locale files to write new keys to, based on a list of key pattern => file rules. Matched from top to bottom:
+  # `i18n-tasks normalize -p` will force move the keys according to these rules
+  write:
+    ## For example, write devise and simple form keys to their respective files:
+    # - ['{devise, simple_form}.*', 'config/locales/\1.%{locale}.yml']
+    ## Catch-all default:
+    # - config/locales/%{locale}.yml
+
+  ## Specify the router (see Readme for details). Valid values: conservative_router, pattern_router, or a custom class.
+  # router: convervative_router
+
+  yaml:
+    write:
+      # do not wrap lines at 80 characters
+      line_width: -1
+
+  ## Pretty-print JSON:
+  # json:
+  #   write:
+  #     indent: '  '
+  #     space: ' '
+  #     object_nl: "\n"
+  #     array_nl: "\n"
+
+# Find translate calls
+search:
+  ## Paths or `File.find` patterns to search in:
+  # paths:
+  #  - app/
+
+  ## Root directories for relative keys resolution.
+  # relative_roots:
+  #   - app/views
+  #   - app/controllers
+  #   - app/helpers
+  #   - app/presenters
+
+  ## Files or `File.fnmatch` patterns to exclude from search. Some files are always excluded regardless of this setting:
+  ##   %w(*.jpg *.png *.gif *.svg *.ico *.eot *.otf *.ttf *.woff *.woff2 *.pdf *.css *.sass *.scss *.less *.yml *.json)
+  exclude:
+    - app/assets/images
+    - app/assets/fonts
+
+  ## Alternatively, the only files or `File.fnmatch patterns` to search in `paths`:
+  ## If specified, this settings takes priority over `exclude`, but `exclude` still applies.
+  # include: ["*.rb", "*.html.slim"]
+
+  ## Default scanner finds t() and I18n.t() calls.
+  # scanner: I18n::Tasks::Scanners::PatternWithScopeScanner
+
+## Google Translate
+# translation:
+#   # Get an API key and set billing info at https://code.google.com/apis/console to use Google Translate
+#   api_key: "AbC-dEf5"
+
+## Do not consider these keys missing:
+# ignore_missing:
+# - 'errors.messages.{accepted,blank,invalid,too_short,too_long}'
+# - '{devise,simple_form}.*'
+
+## Consider these keys used:
+# ignore_unused:
+# - 'activerecord.attributes.*'
+# - '{devise,kaminari,will_paginate}.*'
+# - 'simple_form.{yes,no}'
+# - 'simple_form.{placeholders,hints,labels}.*'
+# - 'simple_form.{error_notification,required}.:'
+
+## Exclude these keys from the `i18n-tasks eq-base' report:
+# ignore_eq_base:
+#   all:
+#     - common.ok
+#   fr,es:
+#     - common.brand
+
+## Ignore these keys completely:
+# ignore:
+#  - kaminari.*

spec/models/i18n_spec.rb

@@ -0,0 +1,17 @@
+require 'i18n/tasks'
+
+describe 'I18n' do
+  let(:i18n) { I18n::Tasks::BaseTask.new }
+  let(:missing_keys) { i18n.missing_keys }
+  let(:unused_keys) { i18n.unused_keys }
+
+  it 'does not have missing keys' do
+    expect(missing_keys).to be_empty,
+      "Missing #{missing_keys.leaves.count} i18n keys, run `i18n-tasks missing' to show them"
+  end
+
+  it 'does not have unused keys' do
+    expect(unused_keys).to be_empty,
+      "#{unused_keys.leaves.count} unused i18n keys, run `i18n-tasks unused' to show them"
+  end
+end