Simplify ci logic

.gitlab/ci/update.yml

@@ -0,0 +1,55 @@
+stages:
+  - update
+  - merge
+
+version_update:
+  stage: update
+  tags:
+    - nix
+  artifacts:
+    reports:
+      dotenv: update.env
+  script:
+    - nix run ".#update" > update.env
+    - |-
+      if git diff --quiet; then
+        echo "No changes necessary"
+      else
+        echo "Found changes to make"
+        git checkout -b "sword-rev/$CI_PIPELINE_IID"
+        echo "BRANCH=sword-rev/$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 #$CI_PIPELINE_IID"
+        git push "https://${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: merge
+  needs:
+    - version_update
+  dependencies:
+    - version_update
+  variables:
+    GIT_STRATEGY: none
+    GITLAB_PRIVATE_TOKEN: $CI_GIT_TOKEN
+  script:
+    - test -z ${DO_UPDATE} && { echo "No updates required. Not crating PR"; exit 0; }
+    - >-
+      CREATE_MR=$(gitlab project-merge-request create
+      --remove-source-branch true
+      --project-id ${CI_PROJECT_ID}
+      --source-branch "${BRANCfh}"
+      --target-branch "main"
+      --title "Update sword to r$NEW_REV")
+    - IID=${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"