CI: use gitlab-ci

.build.yml

-image: alpine/edge
-packages:
-  - sudo
-sources:
-  - https://git.sr.ht/~postmarketos/pmbootstrap
-tasks:
-  - note: |
-      pmbootstrap/.ci/note.sh
-  - shellcheck: |
-      cd pmbootstrap
-      sudo .ci/shellcheck.sh
-  - ruff: |
-      cd pmbootstrap
-      sudo .ci/ruff.sh
-  - vermin: |
-      cd pmbootstrap
-      sudo .ci/vermin.sh
-  - codespell: |
-      cd pmbootstrap
-      sudo .ci/codespell.sh
-  - pytest: |
-      cd pmbootstrap
-      sudo .ci/pytest.sh
-artifacts:
-  - ".local/var/pmbootstrap/log.txt"
-  - ".local/var/pmbootstrap/log_testsuite.txt"

.ci/note.sh

 #!/bin/sh -e
 
-printf "\n"
+printf "==============================================\n"
 printf "PROTIP: use"
-printf " \e[1;32mpmbootstrap ci\e[0m"
+printf " \e[1;33mpmbootstrap ci\e[0m"
 printf " to run these scripts locally.\n"
+printf "==============================================\n"

.gitlab-ci.yml

+image: alpine:edge
+
+before_script:
+  - ".ci/note.sh"
+  - "echo 'https://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories"
+  - "adduser -D build"
+
+stages:
+  - lint
+  - test
+
+codespell:
+  stage: lint
+  script:
+    - ".ci/codespell.sh"
+
+pytest:
+  stage: test
+  script:
+    - "apk -q add git"
+    - "su build -c 'git config --global user.email ci@ci'"
+    - "su build -c 'git config --global user.name CI'"
+    - "echo 'build ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers"
+    - ".ci/pytest.sh"
+
+ruff:
+  stage: lint
+  script:
+    - ".ci/ruff.sh"
+
+shellcheck:
+  stage: lint
+  script:
+    - ".ci/shellcheck.sh"
+
+vermin:
+  stage: lint
+  script:
+    - ".ci/vermin.sh"