Release: merge develop into master

.codecov.yml

@@ -0,0 +1,26 @@
+# Codecov configuration
+# https://docs.codecov.com/docs/codecov-yaml
+
+github_checks:
+  annotations: true
+
+comment:
+  layout: 'reach, diff, flags, files'
+  behavior: default
+  require_changes: false
+  require_base: false
+  require_head: true
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        # Make project coverage informational (won't block PR)
+        informational: true
+    patch:
+      default:
+        target: auto
+        # Require patch coverage but with threshold
+        threshold: 1%

.copier-answers.yml

@@ -1,6 +1,6 @@
 # WARNING: Do not edit this file manually.
 # Any changes will be overwritten by Copier.
-_commit: v0.11.0-7-gb5113cf
+_commit: v0.11.4
 _src_path: gh:easyscience/templates
 app_docs_url: https://easyscience.github.io/diffraction-app
 app_doi: 10.5281/zenodo.18163581

.github/actions/setup-pixi/action.yml

@@ -33,7 +33,7 @@ inputs:
 runs:
   using: 'composite'
   steps:
-    - uses: prefix-dev/setup-pixi@v0.9.4
+    - uses: prefix-dev/setup-pixi@v0.9.5
       with:
         environments: ${{ inputs.environments }}
         activate-environment: ${{ inputs.activate-environment }}

.github/copilot-instructions.md

@@ -34,7 +34,10 @@
 - One class per file when substantial; group small related classes.
 - No `**kwargs` — use explicit keyword arguments.
 - No string-based dispatch (e.g. `getattr(self, f'_{name}')`); write
-  named methods (`_set_sample_form`, `_set_beam_mode`).
+  named methods (`_set_sample_form`, `_set_beam_mode`). Narrow framework
+  metadata lookups are allowed when the attribute name is a class-level
+  declaration, is not user input, and is validated in one central place;
+  for example, `CategoryItem._category_entry_name`.
 - Public attrs are either editable (getter+setter property) or read-only
   (getter only). For internal mutation of read-only props, use a private
   `_set_<name>` method, not a public setter.
@@ -77,7 +80,7 @@
 ## Testing
 
 - Every new module, class, or bug fix ships with tests. See
-  `docs/architecture/architecture.md` §10 for the full strategy.
+  `docs/dev/adrs/accepted/test-strategy.md` for the full strategy.
 - Unit tests mirror the source tree:
   `src/easydiffraction/<pkg>/<mod>.py` →
   `tests/unit/easydiffraction/<pkg>/test_<mod>.py`. Verify with
@@ -102,8 +105,11 @@
 
 - Before any structural/design change (new categories, factories,
   switchable-category wiring, datablocks, CIF serialisation), read
-  `docs/architecture/architecture.md` and follow documented patterns.
-  Localised bug fixes or test updates need only this file.
+  `docs/dev/adrs/index.md` and the relevant accepted ADRs. Localised bug
+  fixes or test updates need only this file.
+- Development documentation lives under `docs/dev/`. Use
+  `docs/dev/adrs/index.md` as the architecture and decision navigation
+  surface; there is no separate `architecture.md` source of truth.
 - Project is in beta: no legacy shims, no deprecation warnings — update
   tests and tutorials to the current API.
 - Minimal diffs; don't reformat working code. Fix only what's asked;
@@ -112,7 +118,10 @@
   resolves them.
 - Never remove or replace existing functionality without explicit
   confirmation — highlight every removal and wait for approval.
-- When renaming, grep the entire project (code, tests, tutorials, docs).
+- When renaming or auditing usages, search the entire project (code,
+  tests, tutorials, docs). Use `git grep -n` because all contributors
+  have Git; do not assume `rg` is installed. If `git grep` is
+  unavailable, fall back to `find ... -type f` plus `grep -n`.
 - Each change is atomic and single-commit-sized: make one change,
   suggest the commit message, then stop and wait for confirmation.
 - When in doubt, ask.
@@ -137,35 +146,51 @@
 
 Non-trivial changes use a two-phase workflow:
 
-- **Phase 1 — Implementation.** Code, docs, and architecture updates
-  only. Do not create or run tests unless the user explicitly asks. When
-  done, present for review and iterate until approved.
+- **Phase 1 — Implementation.** Code and docs updates only. Update ADRs
+  when the change affects architecture or documented decisions. Do not
+  create or run tests unless the user explicitly asks. When done,
+  present for review and iterate until approved.
 - **Phase 2 — Verification.** Add/update tests, then run `pixi run fix`,
   `pixi run check`, `pixi run unit-tests`, `pixi run integration-tests`,
   `pixi run script-tests`.
 
 Notes:
 
-- `pixi run fix` regenerates `docs/architecture/package-structure-*.md`
-  automatically — never edit those by hand. Don't review auto-fixes;
-  accept and move on. Then `pixi run check` until clean.
+- `pixi run fix` regenerates `docs/dev/package-structure/full.md` and
+  `docs/dev/package-structure/short.md` automatically — never edit those
+  by hand. Don't review auto-fixes; accept and move on. Then
+  `pixi run check` until clean.
+- When a check command needs saved output for analysis, capture the log
+  and preserve the command exit code with a zsh-safe variable name:
+  `pixi run check > /tmp/easydiffraction-check.log 2>&1; check_exit_code=$?; tail -n 200 /tmp/easydiffraction-check.log; exit $check_exit_code`.
+  Never assign to `status` in zsh; it is readonly. Use task-specific
+  names such as `check_exit_code`, `unit_tests_exit_code`, or
+  `script_tests_exit_code`.
 - Open issues / design questions / planned improvements live in
-  `docs/architecture/issues_open.md` (priority-ordered). On resolution,
-  move to `docs/architecture/issues_closed.md` and update
-  `architecture.md` if affected.
+  `docs/dev/issues/open.md` (priority-ordered). On resolution, move to
+  `docs/dev/issues/closed.md` and update the relevant ADR or
+  `docs/dev/adrs/index.md` if affected.
 
 ### Planning
 
 When asked to create a plan:
 
+- Start the plan by referencing this file:
+  `.github/copilot-instructions.md`. State any deliberate exception to
+  these instructions in the plan itself.
 - First gather enough repository context to make the plan concrete. Ask
   all ambiguous or unclear questions in one concise batch; record
   unresolved questions in the plan if the user wants it saved before
   answering them.
-- Save plans as `docs/dev/plan_<feature-name>.md` (lowercase,
-  dash-separated, e.g. `plan_background-refactor.md`). Use the same
-  `<feature-name>` for the implementation branch
-  (`feature/<feature-name>`). Do not push the branch unless asked.
+- Save plans as `docs/dev/plans/<feature-name>.md` (lowercase,
+  dash-separated, e.g. `docs/dev/plans/background-refactor.md`). When a
+  plan implements one ADR, use the same slug as the ADR file; for
+  example, `docs/dev/adrs/suggestions/foo.md` maps to
+  `docs/dev/plans/foo.md`. If a plan has no corresponding ADR or spans
+  multiple ADRs, choose a concise feature slug and list all related ADRs
+  in the plan. Use the same `<feature-name>` for the implementation
+  branch (`feature/<feature-name>`). Do not push the branch unless
+  asked.
 - Include a status checklist with `[ ]` items; mark `[x]` as completed
   during implementation.
 - Apply the two-phase workflow (Phase 1 implementation, Phase 2
@@ -185,6 +210,12 @@ When asked to create a plan:
   files likely to change, decisions already made, open questions,
   verification commands for Phase 2, and a short suggested commit
   message or branch name when useful.
+- Verification commands in plans must include the zsh-safe log-capture
+  pattern from **Workflow** whenever saved output is needed for later
+  analysis.
+- Before saving a plan, verify that referenced files, directories,
+  scripts, and task names exist locally when that is practical. If a
+  referenced tool is optional or missing, include an available fallback.
 - End every plan with a "Suggested Pull Request" section containing a
   short PR title and a brief end-user-oriented description. Keep this
   section non-technical enough for scientists and other users to

.github/workflows/coverage.yml

@@ -5,8 +5,6 @@ on:
   push:
     branches:
       - develop
-    # Do not run on version tags (those are handled by other workflows)
-    tags-ignore: ['v*']
   # Trigger the workflow on pull request
   pull_request:
   # Allows you to run this workflow manually from the Actions tab

.github/workflows/dashboard.yml

@@ -32,9 +32,13 @@ jobs:
       - name: Set up pixi
         uses: ./.github/actions/setup-pixi
 
+      # Install badgery into the active Pixi environment without modifying
+      # pixi.toml/pixi.lock. Using `pixi add` here re-solves the whole project
+      # and rebuilds the local editable package, which can cause intermittent
+      # Linux CI failures (`Text file busy`, os error 26).
       - name: Install badgery
         shell: bash
-        run: pixi add --pypi --git https://github.com/enhantica/badgery badgery
+        run: pixi run python -m pip install git+https://github.com/enhantica/badgery
 
       - name: Run docstring coverage and code complexity/maintainability checks
         run: |

.github/workflows/docs.yml

@@ -27,12 +27,16 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
-# Allow only one concurrent deployment to gh-pages at a time.
-# All docs workflows share the same concurrency group to prevent race conditions
-# when multiple branches/tags trigger simultaneous deployments.
+# - Non-tagged pushes and pull requests all use `docs-dev` group, so
+#   they cancel each other.
+# - Tagged pushes use their own group like docs-v1.2.3, so they do not
+#   cancel non-tagged runs, and non-tagged runs do not cancel them.
 concurrency:
-  group: docs-gh-pages-deploy
-  cancel-in-progress: false
+  group: >-
+    ${{ startsWith(github.ref, 'refs/tags/v')
+      && format('docs-{0}', github.ref_name)
+      || 'docs-dev' }}
+  cancel-in-progress: true
 
 # Set the environment variables to be used in all jobs defined in this workflow
 env:
@@ -115,7 +119,7 @@ jobs:
       # Uses multiple cores for parallel execution to speed up the process.
       - name: Run notebooks
         # if: false # Temporarily disabled to speed up the docs build
-        run: pixi run notebook-exec
+        run: pixi run notebook-exec-ci
 
       # Build the static files for the documentation site for local inspection
       # Input: docs/ directory containing the Markdown files

.github/workflows/issues-labels.yml

@@ -1,6 +1,5 @@
-# Verifies if an issue has at least one of the `[scope]` and one of the
-# `[priority]` labels. If not, the bot adds labels with a warning emoji
-# to indicate that those labels need to be added.
+# Verifies if the current issue has at least one `[scope]` label and one
+# `[priority]` label. If either is missing, the workflow adds a reminder label.
 
 name: Issue labels check
 
@@ -13,39 +12,29 @@ permissions:
 
 jobs:
   check-labels:
-    if: github.actor != 'easyscience[bot]'
-
     runs-on: ubuntu-latest
 
     concurrency:
       group: issue-labels-${{ github.event.issue.number }}
       cancel-in-progress: true
 
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-
-      - name: Setup easyscience[bot]
-        id: bot
-        uses: ./.github/actions/setup-easyscience-bot
+      - name: Ensure [scope] label
+        uses: Rindrics/expect-label-prefix@v1.2.1
         with:
-          app-id: ${{ vars.EASYSCIENCE_APP_ID }}
-          private-key: ${{ secrets.EASYSCIENCE_APP_KEY }}
-
-      - name: Check for required [scope] label
-        uses: trstringer/require-label-prefix@v1
-        with:
-          secret: ${{ steps.bot.outputs.token }}
-          prefix: '[scope]'
-          labelSeparator: ' '
-          addLabel: true
-          defaultLabel: '[scope] ⚠️ label needed'
-
-      - name: Check for required [priority] label
-        uses: trstringer/require-label-prefix@v1
+          repository_full_name: ${{ github.repository }}
+          token: ${{ github.token }}
+          label_prefix: '[scope]'
+          label_separator: ' '
+          add_label: 'true'
+          default_label: '[scope] ⚠️ label needed'
+
+      - name: Ensure [priority] label
+        uses: Rindrics/expect-label-prefix@v1.2.1
         with:
-          secret: ${{ steps.bot.outputs.token }}
-          prefix: '[priority]'
-          labelSeparator: ' '
-          addLabel: true
-          defaultLabel: '[priority] ⚠️ label needed'
+          repository_full_name: ${{ github.repository }}
+          token: ${{ github.token }}
+          label_prefix: '[priority]'
+          label_separator: ' '
+          add_label: 'true'
+          default_label: '[priority] ⚠️ label needed'

.github/workflows/pr-labels.yml

@@ -1,14 +1,9 @@
 # Verifies if a pull request has at least one label from a set of valid
 # labels before it can be merged.
 #
-# NOTE:
-# This workflow may be triggered twice in quick succession when a PR is
-# created:
-#   1) `opened`  — when the pull request is initially created
-#   2) `labeled` — if labels are added immediately after creation
-# (e.g. by manual labeling, another workflow, or GitHub App).
-#
-# These are separate GitHub events, so two workflow runs can be started.
+# The label validation is delegated to `mheap/github-action-required-labels`,
+# which checks the current PR labels via the GitHub API and can add or update a
+# PR comment when the required label set is missing.
 
 name: PR labels check
 
@@ -17,40 +12,34 @@ on:
     types: [opened, labeled, unlabeled, synchronize]
 
 permissions:
-  pull-requests: read
+  issues: write
+  pull-requests: write
 
 jobs:
   check-labels:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Check for valid labels
-        run: |
-          PR_LABELS=$(echo '${{ toJson(github.event.pull_request.labels.*.name) }}' | jq -r '.[]')
-
-          echo "Current PR labels: $PR_LABELS"
-          VALID_LABELS=(
-            "[bot] release"
-            "[scope] bug"
-            "[scope] documentation"
-            "[scope] enhancement"
-            "[scope] maintenance"
-            "[scope] significant"
-          )
-
-          found=false
-          for label in "${VALID_LABELS[@]}"; do
-            if echo "$PR_LABELS" | grep -Fxq "$label"; then
-              echo "✅ Found valid label: $label"
-              found=true
-              break
-            fi
-          done
-
-          if [ "$found" = false ]; then
-            echo "ERROR: PR must have at least one of the following labels:"
-            for label in "${VALID_LABELS[@]}"; do
-              echo "       - $label"
-            done
-            exit 1
-          fi
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Setup easyscience[bot]
+        id: bot
+        uses: ./.github/actions/setup-easyscience-bot
+        with:
+          app-id: ${{ vars.EASYSCIENCE_APP_ID }}
+          private-key: ${{ secrets.EASYSCIENCE_APP_KEY }}
+
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          token: ${{ steps.bot.outputs.token }}
+          add_comment: true
+          mode: minimum
+          count: 1
+          labels: |
+            [bot] release
+            [scope] bug
+            [scope] documentation
+            [scope] enhancement
+            [scope] maintenance
+            [scope] significant

.github/workflows/release-pr.yml

@@ -48,7 +48,7 @@ jobs:
           gh pr create \
             --base ${{ env.DEFAULT_BRANCH }} \
             --head ${{ env.SOURCE_BRANCH }} \
-            --title "Release: merge ${{ env.SOURCE_BRANCH }} into ${{ env.DEFAULT_BRANCH }}" \
+            --title "🎉 Release: merge ${{ env.SOURCE_BRANCH }} into ${{ env.DEFAULT_BRANCH }}" \
             --label "[bot] release" \
             --body "This PR is created automatically to trigger the release pipeline. It merges the accumulated changes from \`${{ env.SOURCE_BRANCH }}\` into \`${{ env.DEFAULT_BRANCH }}\`.
 

.github/workflows/test.yml

@@ -248,10 +248,10 @@ jobs:
               exit 1
             fi
 
-            whl_url="file://$(python -c 'import os,sys; print(os.path.abspath(sys.argv[1]))' "${whl_path[0]}")"
+            whl_abs_path="$(python -c 'import os,sys; print(os.path.abspath(sys.argv[1]))' "${whl_path[0]}")"
 
-            echo "Adding easydiffraction from: $whl_url"
-            pixi add --pypi "easydiffraction[dev] @ ${whl_url}"
+            echo "Adding easydiffraction from: $whl_abs_path"
+            pixi add --pypi "easydiffraction[dev] @ ${whl_abs_path}"
 
             echo "Exiting pixi project directory"
             cd ..