Mermaid diagrams support fixes asciidoctor#109

Dockerfile

@@ -9,14 +9,16 @@ ARG asciidoctor_diagram_version=1.5.19
 ARG asciidoctor_epub3_version=1.5.0.alpha.9
 ARG asciidoctor_mathematical_version=0.3.1
 ARG asciidoctor_revealjs_version=2.0.0
+ARG mermaid_cli_version=0.5.1
 
 ENV ASCIIDOCTOR_VERSION=${asciidoctor_version} \
   ASCIIDOCTOR_CONFLUENCE_VERSION=${asciidoctor_confluence_version} \
   ASCIIDOCTOR_PDF_VERSION=${asciidoctor_pdf_version} \
   ASCIIDOCTOR_DIAGRAM_VERSION=${asciidoctor_diagram_version} \
   ASCIIDOCTOR_EPUB3_VERSION=${asciidoctor_epub3_version} \
   ASCIIDOCTOR_MATHEMATICAL_VERSION=${asciidoctor_mathematical_version} \
-  ASCIIDOCTOR_REVEALJS_VERSION=${asciidoctor_revealjs_version}
+  ASCIIDOCTOR_REVEALJS_VERSION=${asciidoctor_revealjs_version} \
+  MERMAID_CLI_VERSION=${mermaid_cli_version}
 
 # Installing package required for the runtime of
 # any of the asciidoctor-* functionnalities
@@ -80,6 +82,23 @@ RUN apk add --no-cache --virtual .pythonmakedepends \
     seqdiag \
   && apk del -r --no-cache .pythonmakedepends
 
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
+COPY puppeteer.json /etc
+
+# Installing NodeJS dependencies for additional
+# functionnalities as diagrams and chromium headless
+RUN apk add --no-cache \
+      chromium \
+      freetype \
+      freetype-dev \
+      harfbuzz \
+      nodejs \
+      nss \
+      ttf-freefont \
+      yarn \
+  && yarn global add [email protected] \
+  && echo "alias mmdc='mmdc -p /etc/puppeteer.json'" > /etc/profile.d/mmdc
+
 WORKDIR /documents
 VOLUME /documents
 

puppeteer.json

@@ -0,0 +1,4 @@
+{
+  "args": ["--no-sandbox"],
+  "executablePath": "/usr/bin/chromium-browser"
+}

tests/test_suite.bats

@@ -215,3 +215,8 @@ teardown() {
       asciidoctor-pdf -D /documents/tmp \
       /documents/fixtures/samples-syntax-highlight/*.adoc
 }
+
+@test "mermaid cli is installed and in version ${MERMAID_CLI_VERSION}" {
+  docker run -t --rm "${DOCKER_IMAGE_NAME_TO_TEST}" mmdc --version \
+    | grep "${MERMAID_CLI_VERSION}"
+}