refactor: use docsy as hugo module

docsy now recommends that it be used as a Hugo Module instead of as a
git submodule:

https://www.docsy.dev/docs/updating/convert-site-to-module/

Author: alee

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "themes/docsy"]
-	path = themes/docsy
-	url = https://github.com/google/docsy.git

Dockerfile

@@ -2,11 +2,15 @@ ARG HUGO_VERSION=0.101.0
 ARG DIST_TAG=-ext-ubuntu
 FROM klakegg/hugo:${HUGO_VERSION}${DIST_TAG}
 
+ARG DOCSY_VERSION=v0.4.0
+
 LABEL maintainer="CoMSES Net <support@comses.net>"
 
 WORKDIR /src
-COPY ./package.json ./yarn.lock /src/
+COPY . /src/
 
-RUN yarn install
+RUN git config --global --add safe.directory /src \
+    && hugo mod init github.com/openmodelingfoundation/openmodelingfoundation.github.io \
+    && hugo mod get github.com/google/docsy@${DOCSY_VERSION}
 
 CMD ["server"]

config.toml

@@ -4,7 +4,8 @@ title = "The Open Modeling Foundation"
 enableRobotsTXT = true
 
 # Hugo allows theme composition (and inheritance). The precedence is from left to right.
-theme = ["docsy"]
+# NB: disabled in favor of module settings https://www.docsy.dev/docs/updating/convert-site-to-module/
+# theme = ["github.com/google/docsy", "github.com/google/docsy/dependencies"]
 
 # Will give values to .Lastmod etc.
 enableGitInfo = true
@@ -33,6 +34,19 @@ pygmentsUseClassic = false
 # See https://help.farbox.com/pygments.html
 pygmentsStyle = "tango"
 
+# module settings
+[module]
+  proxy = "direct"
+  [module.hugoVersion]
+    extended = true
+    min = "0.101.0"
+  [[module.imports]]
+    path = "github.com/google/docsy"
+    disable = false
+  [[module.imports]]
+    path = "github.com/google/docsy/dependencies"
+    disable = false
+
 # Configure how URLs look like per section.
 [permalinks]
 blog = "/:section/:year/:month/:day/:slug/"

docker-compose.yml

@@ -1,13 +1,20 @@
-version: '3.8'
 services:
   hugo:
-    image: openmodelingfoundation/omf.io:latest
+    image: openmodelingfoundation/omf:latest
     build:
       context: .
       args:
         HUGO_VERSION: ${HUGO_VERSION}
     ports:
       - "127.0.0.1:1313:1313"
     volumes:
-      - .:/src
+      - ./archetypes:/src/archetypes
+      - ./assets:/src/assets
+      - ./content:/src/content
+      - ./i18n:/src/i18n
+      - ./layouts:/src/layouts
+      - ./resources:/src/resources
+      - ./static:/src/static
+      - ./.git:/src/.git
+      - /src/themes
       - /src/node_modules