Wyatt Allen 03f0ce6c0f Update syntax highlighting support

Adds new languages and removes an unused language. The built, minified
and gzipped size of the HighlightJS library increases from 17KB to 25KB.

Change-Id: Id3c83e5b0592b85c9f2adf53f07b6852966dcced

2016-08-02 13:15:09 -07:00

1.8 KiB

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Building Highlight.js for Gerrit

Highlight JS needs to be built with specific language support. Here are the steps to build the minified file that appears here.

NOTE: If you are adding support for a language to Highlight.js make sure to add it to the list of languages in the build command below.

Prerequisites

You will need:

nodejs
closure-compiler
git

Steps to Create the Pack File

The packed version of Highlight.js is an un-minified JS file with all of the languages included. Build it with the following:

$>  # start in some temp directory
$>  git clone https://github.com/isagalaev/highlight.js.git
$>  cd highlight.js
$>  node tools/build.js -n \
      bash \
      cpp \
      cs \
      clojure \
      css \
      d \
      dart \
      go \
      haskell \
      java \
      javascript \
      json \
      lisp \
      lua \
      markdown \
      objectivec \
      ocaml \
      perl \
      protobuf \
      python \
      ruby \
      rust \
      scala \
      sql \
      swift \
      typescript \
      xml \
      yaml

The resulting JS file will appear in the "build" directory of the Highlight.js repo under the name "highlight.pack.js".

Minification

Minify the file using closure-compiler using the command below. (Modify /path/to with the path to your compiler jar.)

$>  java -jar /path/to/closure-compiler.jar \
        --js build/highlight.pack.js \
        --js_output_file build/highlight.min.js

Copy the header comment that appears on the first line of build/highlight.pack.js and add it to the start of build/highlight.min.js.

Finish

Copy the resulting build/highlight.min.js file to lib/highlightjs

1.8 KiB Raw Blame History