Use a consistent blog post url format not dependent on categories

Gemfile

@@ -7,7 +7,7 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "~> 4.0.0"
+gem "jekyll", "~> 4.2.0"
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.5"
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
@@ -16,6 +16,7 @@ gem "minima", "~> 2.5"
 # If you have any plugins, put them here!
 group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.12"
+  gem "jekyll-redirect-from", "0.16"
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem

Gemfile.lock

@@ -4,69 +4,71 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.6)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.1.8)
+    em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    ffi (1.12.2)
+    ffi (1.15.0)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    i18n (1.8.2)
+    i18n (1.8.9)
       concurrent-ruby (~> 1.0)
-    jekyll (4.0.0)
+    jekyll (4.2.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
-      i18n (>= 0.9.5, < 2)
+      i18n (~> 1.0)
       jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.1)
+      kramdown (~> 2.3)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.3.3)
+      mercenary (~> 0.4.0)
       pathutil (~> 0.9)
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 1.8)
-    jekyll-feed (0.13.0)
+      terminal-table (~> 2.0)
+    jekyll-feed (0.15.1)
       jekyll (>= 3.7, < 5.0)
+    jekyll-redirect-from (0.16.0)
+      jekyll (>= 3.3, < 5.0)
     jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
-    jekyll-seo-tag (2.6.1)
-      jekyll (>= 3.3, < 5.0)
+    jekyll-seo-tag (2.7.1)
+      jekyll (>= 3.8, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (2.3.0)
+    kramdown (2.3.1)
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.2.1)
+    listen (3.5.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    mercenary (0.3.6)
+    mercenary (0.4.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.3)
-    rb-fsevent (0.10.3)
+    public_suffix (4.0.6)
+    rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.4)
-    rouge (3.17.0)
+    rouge (3.26.0)
     safe_yaml (1.0.5)
-    sassc (2.2.1)
+    sassc (2.4.0)
       ffi (~> 1.9)
-    terminal-table (1.8.0)
+    terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    tzinfo (1.2.6)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2019.3)
+    tzinfo-data (1.2021.1)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.7.0)
     wdm (0.1.1)
@@ -75,8 +77,9 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (~> 4.0.0)
+  jekyll (~> 4.2.0)
   jekyll-feed (~> 0.12)
+  jekyll-redirect-from (= 0.16)
   minima (~> 2.5)
   tzinfo (~> 1.2)
   tzinfo-data

_config.yml

@@ -31,6 +31,8 @@ show_excerpts: true
 contributor_excerpt: "" # TODO: write something here, goes right under "Contributors" heading
 blog-intro: Create an issue if you see something wrong. Edit posts or create new ones via PR on <a target="_blank" href="https://github.com/RustPython/rustpython.github.io">github.com/RustPython/rustpython.github.io</a>
 
+permalink: /blog/:year/:month/:day/:title:output_ext
+
 navigation:
   - title: Blog
     url: /blog
@@ -49,6 +51,7 @@ dashboards:
 theme: minima
 plugins:
   - jekyll-feed
+  - jekyll-redirect-from
 
 # Exclude from processing.
 # The following items will not be processed, by default.

_posts/2020-03-12-thing-explainer-parser.markdown

@@ -2,6 +2,7 @@
 layout: post
 title:  "Introduction to the RustPython parser"
 date:   2020-04-02 11:34:01 -0400
+redirect_from: /2020/04/02/thing-explainer-parser.html
 ---
 
 This post goes over the RustPython parser. You can see the source code at [RustPython/parser/](https://github.com/RustPython/RustPython/tree/master/parser).

_posts/2020-04-05-how-to-contribute-by-cpython-unittest.markdown

@@ -3,7 +3,7 @@ layout: post
 title:  "How to contribute to RustPython using CPython's unit tests"
 date:   2020-04-05 01:45:00 +0900
 categories: [guideline, featured]
-permalink:  guideline/2020/04/04/how-to-contribute-by-cpython-unittest.html
+redirect_from: /guideline/2020/04/04/how-to-contribute-by-cpython-unittest.html
 ---
 
 At the very end of 2019, we finally reached one of our short-term goals: CPython `unittest` support which makes finding CPython compatibility errors easier than ever.

_posts/2021-01-27-pip-support.markdown

@@ -3,6 +3,7 @@ layout: post
 title:  "pip is working! 🎉  🎉 "
 date:   2021-01-27 01:45:00 +0900
 categories: [featured]
+redirect_from: /featured/2021/01/26/pip-support.html
 ---
 
 7380 commits and 1940 pull requests later, **pip** and **get-pip.py** are working with RustPython 🎉  🎉. pip can install itself and setuptools!