Add mdbook (#29)

An example to publish pages built with mdbook on Codeberg Pages.

Co-authored-by: Tealk <tealk@rollenspiel.monster>
Reviewed-on: https://codeberg.org/Codeberg-CI/examples/pulls/29
Reviewed-by: 6543 <6543@obermui.de>
Co-authored-by: Tealk <tealk@noreply.codeberg.org>
Co-committed-by: Tealk <tealk@noreply.codeberg.org>

.woodpecker.yml

@@ -18,3 +18,4 @@ steps:
       - woodpecker-cli lint tectonic/
       - woodpecker-cli lint NodeJS/11ty.yml
       - woodpecker-cli lint KiCad/kibot.yml
+      - woodpecker-cli lint mdbook/*.yml

README.md

@@ -23,6 +23,7 @@ Pull requests are accepted/welcome.
 | [tectonic/.woodpecker.yml](tectonic/.woodpecker.yml) | LaTeX       | Tectonic            | Builds a TeX file and pushes the resulting PDF file to a given repository.                                                                                               |
 | [NodeJS/11ty.yml](NodeJS/11ty.yml)                   | JavaScript  | NodeJS              | CI to build static websites files and publish them to Codeberg Pages with 11ty                                                                                           |
 | [KiCad/kibot.yml](KiCad/kibot.yml)                   | ---         | KiBot               | Building gerber files, ibom and a pdf schematic as an example for KiBot use                                                                                              |
+| [mdbook/mdbook.yml](mdbook/mdbook.yml)               | Markdown    | mdbook              | CI step to build static website files and publish them to Codeberg Pages with mdbook                                                                                       |
 
 # More:
 

mdbook/mdbook.yml

@@ -0,0 +1,42 @@
+# hugo.yml
+#
+# Takes a repository with mdbook source, generates the static site and
+# pushes the result to Codeberg pages
+#
+# Needs a codeberg access token (codeberg_token) as a secret in Woodpecker config
+# Also uses another secret (mail) with email address for git config
+#
+# .domains file in the repository is copied to the output branch so custom domains work
+#
+# The MDBOOK_OUTPUT variable must be set to the build output folder configured in Hugo
+#
+
+clone:
+  git:
+    image: woodpeckerci/plugin-git
+
+when:
+  branch: master
+  event: [ push, cron ]
+
+steps:
+  build:
+    image: peaceiris/mdbook:latest
+    commands:
+      - mdbook build
+
+  publish:
+    image: bitnami/git
+    secrets: [ mail, codeberg_token ]
+    environment:
+      - MDBOOK_OUTPUT=book
+    commands:
+      - git config --global user.email $MAIL
+      - git config --global user.name "Woodpecker CI"
+      - git clone -b pages https://$CODEBERG_TOKEN@codeberg.org/$CI_REPO.git $CI_REPO_NAME
+      - cp -ar $MDBOOK_OUTPUT/. $CI_REPO_NAME/
+      - cp .domains $CI_REPO_NAME || true
+      - cd $CI_REPO_NAME
+      - git add .
+      - git commit -m "Woodpecker CI ${CI_BUILD_CREATED}"
+      - git push