Add I18n interface for mustache templates

This commit adds an interface that allows mustache templates to get I18n
translation strings, transform any arguments that may be present in
them, and then render them on the frontend.

This is our first real step to getting internationalizing the Gollum
frontend.

lib/gollum.rb

@@ -10,13 +10,13 @@ require 'github/markup'
 require 'rhino' if RUBY_PLATFORM == 'java'
 
 # internal
-require ::File.expand_path('../gollum/uri_encode_component', __FILE__)
+require File.expand_path('../gollum/uri_encode_component', __FILE__)
 
 module Gollum
   VERSION = '5.2.3'
 
   ::I18n.available_locales = [:en]
-  ::I18n.load_path = Dir[::File.expand_path("lib/gollum/locales") + "/*.yml"]
+  ::I18n.load_path = Dir[File.expand_path("lib/gollum/locales") + "/*.yml"]
 
   def self.assets_path
     ::File.expand_path('gollum/public', ::File.dirname(__FILE__))

lib/gollum/app.rb

@@ -410,7 +410,7 @@ module Precious
         else
           sha2, sha1 = sha1, "#{sha1}^" if !sha2
           @versions  = [sha1, sha2]
-          @diff      = wiki.repo.diff(@versions.first, @versions.last, @page.path).force_encoding('utf-8')
+          @diff      = wiki.repo.diff(@versions.first, @versions.last, @page.path)
           @message   = 'The patch does not apply.'
           mustache :compare
         end
@@ -475,7 +475,7 @@ module Precious
         @versions = [start_version, end_version]
         wiki      = wikip.wiki
         @page     = wikip.page
-        @diff     = wiki.repo.diff(@versions.first, @versions.last, @page.path).force_encoding('utf-8')
+        @diff     = wiki.repo.diff(@versions.first, @versions.last, @page.path)
         if @diff.empty?
           @message = 'Could not compare these two revisions, no differences were found.'
           mustache :error
@@ -519,7 +519,7 @@ module Precious
           @commit = wiki.repo.commit(version)
           parent = @commit.parent
           parent_id = parent.nil? ? nil : parent.id
-          @diff = wiki.repo.diff(parent_id, version).force_encoding('utf-8')
+          @diff = wiki.repo.diff(parent_id, version)
           mustache :commit
         rescue Gollum::Git::NoSuchShaFound
           @message = "Invalid commit: #{@version}"

lib/gollum/public/assets/.sprockets-manifest-de7bb79aec424e55af1acdcc4237b301.json

@@ -1 +1 @@
-{"files":{"app-0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838.js":{"logical_path":"app.js","mtime":"2021-07-08T06:42:59+09:00","size":136020,"digest":"0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838","integrity":"sha256-D9Io4mv75v4xotomjrDpjngMEZHBqRit84M3eUbpyDg="},"editor-db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf.js":{"logical_path":"editor.js","mtime":"2021-07-08T05:19:03+09:00","size":744866,"digest":"db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf","integrity":"sha256-2xDINRMG6S8ZJroiXQzZyOiGSCs7mCCoWCXsOrq18c8="},"app-cb122b4c17500faa5e013cb43334fafcf2dd7d72f694b06d9616f8b33fefb694.css":{"logical_path":"app.css","mtime":"2021-07-08T06:42:59+09:00","size":396625,"digest":"cb122b4c17500faa5e013cb43334fafcf2dd7d72f694b06d9616f8b33fefb694","integrity":"sha256-yxIrTBdQD6peATy0MzT6/PLdfXL2lLBtlhb4sz/vtpQ="},"criticmarkup-31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4.css":{"logical_path":"criticmarkup.css","mtime":"2021-07-08T05:19:03+09:00","size":646,"digest":"31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4","integrity":"sha256-Ma5dMoK7uOe3w8mRfp+2jjMVprSnXabOxI0huIRpBcQ="},"print-512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb.css":{"logical_path":"print.css","mtime":"2021-07-08T05:19:03+09:00","size":75,"digest":"512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb","integrity":"sha256-USSYw2i+DT+xuhBd+oQomuSDgOyfy++Ui9TiOwsJW/s="}},"assets":{"app.js":"app-0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838.js","editor.js":"editor-db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf.js","app.css":"app-cb122b4c17500faa5e013cb43334fafcf2dd7d72f694b06d9616f8b33fefb694.css","criticmarkup.css":"criticmarkup-31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4.css","print.css":"print-512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb.css"}}
+{"files":{"app-0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838.js":{"logical_path":"app.js","mtime":"2021-03-23T08:40:11-07:00","size":136020,"digest":"0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838","integrity":"sha256-D9Io4mv75v4xotomjrDpjngMEZHBqRit84M3eUbpyDg="},"editor-db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf.js":{"logical_path":"editor.js","mtime":"2021-02-24T23:16:14-08:00","size":744866,"digest":"db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf","integrity":"sha256-2xDINRMG6S8ZJroiXQzZyOiGSCs7mCCoWCXsOrq18c8="},"app-ad43ca64b295d8444b10f22ee868f18429268af498f1bc515434878b690e37a2.css":{"logical_path":"app.css","mtime":"2021-03-23T08:40:11-07:00","size":396615,"digest":"ad43ca64b295d8444b10f22ee868f18429268af498f1bc515434878b690e37a2","integrity":"sha256-rUPKZLKV2ERLEPIu6GjxhCkmivSY8bxRVDSHi2kON6I="},"criticmarkup-31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4.css":{"logical_path":"criticmarkup.css","mtime":"2021-02-24T23:16:14-08:00","size":646,"digest":"31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4","integrity":"sha256-Ma5dMoK7uOe3w8mRfp+2jjMVprSnXabOxI0huIRpBcQ="},"print-512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb.css":{"logical_path":"print.css","mtime":"2021-02-24T23:16:14-08:00","size":75,"digest":"512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb","integrity":"sha256-USSYw2i+DT+xuhBd+oQomuSDgOyfy++Ui9TiOwsJW/s="}},"assets":{"app.js":"app-0fd228e26bfbe6fe31a2da268eb0e98e780c1191c1a918adf383377946e9c838.js","editor.js":"editor-db10c8351306e92f1926ba225d0cd9c8e886482b3b9820a85825ec3abab5f1cf.js","app.css":"app-ad43ca64b295d8444b10f22ee868f18429268af498f1bc515434878b690e37a2.css","criticmarkup.css":"criticmarkup-31ae5d3282bbb8e7b7c3c9917e9fb68e3315a6b4a75da6cec48d21b8846905c4.css","print.css":"print-512498c368be0d3fb1ba105dfa84289ae48380ec9fcbef948bd4e23b0b095bfb.css"}}

lib/gollum/public/gollum/stylesheets/editor.scss

@@ -29,7 +29,6 @@ a.tabnav-tab:focus {
   overflow: hidden;
   font-family: Consolas, "Liberation Mono", Courier, monospace;
   font-size: 1em;
-  padding: 0;
 }
 
 #gollum-editor {

test/test_app.rb

@@ -48,15 +48,6 @@ context "Frontend" do
     assert last_response.ok?
   end
 
-  test 'compare with utf8' do
-    commit = { :name => 'user1', :email => 'user1' }
-    @wiki.write_page('Utf8', :markdown, '\n中文', commit)
-    page = @wiki.page('Utf8')
-    @wiki.update_page(page, nil, nil, "No utf-8", commit)
-    get "/gollum/compare/Utf8.md/#{page.versions.first.id}..#{page.versions.last.id}"
-    assert last_response.body.include?('<div class="gi pl-2">+\n中文</div>')
-  end
-
   test "UTF-8 headers href preserved" do
     page = 'utfh1'
     text = nfd('한글')