This commit introduces a where_exp filter, which can be used as follows:
`{{ array | where_exp: "item", "item == 10" }}`
`{{ array | where_exp: "item", "item.field > 10" }}`
`{{ site.posts | where_exp: "post", "post contains 'field'" }}`
`{{ site.posts | where_exp: "post", "post.array contains 'giraffes'" }}`
This permits a variety of use cases, such as reported in: jekyll#4467,
jekyll#4385, jekyll#2787.
As it was we assumed that any system that wasn't Windows or OS X must be Linux
but the reality of that can be very unlikely. BSD is popular in some places and
it's not Linux and this would cause an error there. If we do not know the
launcher for a platform we should ship an error and have the user file
a bug if they feel it necessary and skip the launch otherwise.
This removes the following warnings:
- /lib/jekyll/configuration.rb:151: warning: instance variable @default_config_file not initialized
- /lib/jekyll/converter.rb:12: warning: instance variable @highlighter_prefix not initialized
- /lib/jekyll/converter.rb:24: warning: instance variable @highlighter_suffix not initialized
- /lib/jekyll/converters/markdown.rb:9: warning: instance variable @setup not initialized
- /lib/jekyll/converters/markdown/kramdown_parser.rb:60: warning: instance variable @highlighter not initialized
- /lib/jekyll/frontmatter_defaults.rb:97: warning: shadowing outer local variable - path
- /lib/jekyll/plugin.rb:66: warning: instance variable @safe not initialized
- /lib/jekyll/regenerator.rb:147: warning: instance variable @disabled not initialized
- /test/test_convertible.rb:40: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_filters.rb:154: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_new_command.rb:84: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_site.rb:234: warning: assigned but unused variable - site
- /test/test_site.rb:240: warning: assigned but unused variable - site
- /test/test_site.rb:522: warning: assigned but unused variable - source
- /test/test_tags.rb:153: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:425: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:449: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:496: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:496: warning: instance variable @result not initialized
- /test/test_tags.rb:511: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:773: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:773: warning: instance variable @result not initialized
- /test/test_tags.rb:788: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_url.rb:66: warning: shadowing outer local variable - doc
- /lib/jekyll/url.rb:119:in `escape_path': warning: URI.escape is obsolete
Prior to this change, the related posts for the most recently rendered post
stayed set on the `site` object. This could result in pages that showed related
posts even when the page represented an entire collection of posts, such as on
an index page. This change restores the functionality from Jekyll V2.