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.


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
$>  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 \

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


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.


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