FROM ruby:2.6.3-alpine3.10
MAINTAINER GitLab Documentation Team

WORKDIR /tmp

ENV GITLAB_DOCS_REVISION=1396a50b1eb9344be0403bb25e172e5408285dfe

RUN apk update && apk upgrade --no-cache && apk add --no-cache \
  build-base \
  bash \
  grep \
  yarn

RUN yarn global add markdownlint-cli@0.18.0 && yarn cache clean

RUN wget https://gitlab.com/gitlab-org/gitlab-docs/-/archive/$GITLAB_DOCS_REVISION/gitlab-docs-$GITLAB_DOCS_REVISION.tar.bz2 \
  && tar xvjf gitlab-docs-$GITLAB_DOCS_REVISION.tar.bz2 \
  && mv gitlab-docs-$GITLAB_DOCS_REVISION gitlab-docs \
  && rm gitlab-docs-$GITLAB_DOCS_REVISION.tar.bz2

RUN cd gitlab-docs \
  && bundle install --jobs 4