First attempt at auto update job

.gitlab-ci.yml

@@ -12,10 +12,16 @@ workflow:
       when: never
     # Run reduced pipeline for branches
     - if: $CI_COMMIT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == "web"
 
 include:
   # Low-effort, we can always do lint checks, validations, and so forth
   - local: .gitlab/always.yml
+    rules:
+      - if: $CI_PIPELINE_SOURCE != "web"
+  - local: .gitlab/update.yml
+    rules:
+      - if: $CI_PIPELINE_SOURCE == "web"
   # Actual download of ISOs and building of images. This should only be
   # done some of the time
   - local: .gitlab/build.yml

.gitlab/update.yml

@@ -0,0 +1,55 @@
+version_update:
+  stage: generate
+  image: "alpine/git:latest"
+  artifacts:
+    reports:
+      dotenv: update.env
+  script:
+    - |-
+      set -x
+      shopt -s globstar
+      for updater in distros/**/update.sh; do
+        bash "$updater"
+      done
+    - |-
+      if git diff --quiet; then
+        echo "No changes necessary"
+      else
+        echo "Found updates to make"
+        git checkout -b "autoupdate/$CI_PIPELINE_IID"
+        echo "BRANCH=autoupdate/$CI_PIPELINE_IID" >> update.env
+        git config set user.name "Greg Hellings - automation"
+        git config set user.email "greg@thehellings.com"
+        git stage .
+        git commit -m "Automatic update $CI_PIPEILNE_IID"
+        git push "https://${GITLAB_USER_LOGIN}:${CI_GIT_TOKEN}@${CI_REPOSITORY_URL#*@}" HEAD
+      fi
+
+create_pr:
+  image:
+    name: registry.gitlab.com/python-gitlab/python-gitlab:latest
+    entrypoint: [ '' ]
+  stage: trigger
+  needs:
+    - version_update
+  dependencies:
+    - version_update
+  variables:
+    GIT_STRATEGY: none
+    GITLAB_PRIVATE_TOKEN: $CI_GIT_TOKEN
+  script:
+    - test -z ${DO_UPDATE} && { echo "No updates required. Not creating PR"; exit 0; }
+    - >-
+      CREATE_MR=$(gitlab project-merge-request create
+      --remote-source-branch true
+      --project-id ${CI_PROJECT_ID}
+      --source-branch "${BRANCH}"
+      --target-branch "main"
+      --title "Update ISO checksums"
+    - IID=${CREATE_MR#* }
+    - >-
+      gitlab project-merge-request merge
+      --project-id ${CI_PROJECT_ID}
+      --iid ${IID}
+      --merge-when-pipeline-succeeds true
+    - echo "PR set to auto-merge if build succeeds"