# Auto-apply registry patches (issue #115, step 3 automation).
# Classifies `single_builds` failures and, for the top-N auto-proposable
# candidates by failure volume, writes the registry entries onto the reused
# `auto/registry-patch-proposals` branch and opens/updates a single PR.
# Nothing merges: the `trial-build-registry` pipeline is the merge gate, and a
# human reviews the PR. Novel source diffs / unknown signatures are never
# proposed. Global across platforms, so a single job -- no matrix.
#
# FORGEJO_TOKEN is used for both the branch push and opening the PR (no separate
# write-scoped secret needed). Register the `auto-apply-patches` cron in the crow
# UI, or run manually:
#   crow pipeline create --branch main \
#     --var auto_apply_patches=true devxy/build-cran-binaries
#
# The gate variable is `auto_apply_patches`, named after the pipeline: a manual
# run instantiates every pipeline in `.crow/`, so one without its own gate runs
# on *any* manual trigger in this repo. This one pushes a branch and opens a PR,
# so it must stay off unless it is what was asked for.
variables:
  auto_apply_patches:
    description: 'Run the auto-patch proposer. Also gates this pipeline.'
    options:
      - 'true'
      - 'false'
    default: 'false'
  patch_limit:
    description: 'Max candidates to propose per run (top by failure volume).'
    default: '10'

when:
  - event: manual
    evaluate: 'auto_apply_patches == "true"'
  - event: cron
    cron: auto-apply-patches

skip_clone: true

labels:
  group: rpkgs-amd64

steps:
  - name: 'Auto-apply registry patches'
    image: reg.devxy.io/rpkgs/build-env-alpine:3.24
    pull: true
    environment:
      PGPASS:
        from_secret: PGPASS
      REPO_RO_TOKEN:
        from_secret: REPO_RO_TOKEN
      FORGEJO_TOKEN:
        from_secret: FORGEJO_TOKEN
      GIT_USER: devxy-bot
      GIT_EMAIL: bot@devxy.io
      PATCH_LIMIT: ${patch_limit}
      R_VERSION: 4.5.3
      R_LIBS_USER: /mnt/cache/R-pkgs
    commands:
      - git clone -q https://pat-s:$$REPO_RO_TOKEN@git.devxy.io/devxy/build-cran-binaries.git .
      - mkdir -p /mnt/cache/R-pkgs
      - rm -rf /mnt/cache/R-pkgs/00LOCK-*
      - UVR_R_BIN=/opt/R/$R_VERSION/bin/R local/uvr-install.sh httr2 jsonlite
      - /opt/R/$R_VERSION/bin/Rscript local/propose-patches.R --open-pr --limit $PATCH_LIMIT
    backend_options:
      kubernetes:
        resources:
          requests:
            memory: 1Gi
            cpu: 2000m
          limits:
            memory: 2Gi
            cpu: 2000m
        tolerations:
          - key: 'CI'
            operator: 'Equal'
            value: 'true'
            effect: 'NoSchedule'