From 4cc6e64950376c51038c7d0535a49b0ac60b7b71 Mon Sep 17 00:00:00 2001
From: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>
Date: Tue, 2 Jun 2026 12:46:46 -0400
Subject: [PATCH] Normalize CI to SciML centralized reusable workflows

Migrate to the SciML/.github centralized reusable workflows (pinned @v1):

- FormatCheck.yml: now calls runic.yml@v1 (was inline fredrikekre/runic-action)
- SpellCheck.yml: now calls spellcheck.yml@v1 (was inline crate-ci/typos@v1.18.0)
- Tests.yml: ADDED, calls tests.yml@v1 with version matrix ["1","lts"]
- Downgrade.yml: ADDED, calls downgrade.yml@v1 (julia-version lts, skip Pkg,TOML)

dependabot.yml: removed the crate-ci/typos version-ignore block (standing
policy: no per-dependency ignores). Julia + github-actions blocks preserved.

.typos.toml: added code identifiers `thr` and `SIE` (false positives surfaced
by the newer typos version used by spellcheck.yml@v1).

Documentation.yml left unchanged: its self-hosted gpu-v100 runner and the
`Pkg.develop("OrdinaryDiffEq")` (docs built against OrdinaryDiffEq master)
step cannot be reproduced by documentation.yml@v1 without dropping behavior.

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 .github/dependabot.yml            |  3 ---
 .github/workflows/Downgrade.yml   | 26 ++++++++++++++++++++++++++
 .github/workflows/FormatCheck.yml | 24 ++++++++++--------------
 .github/workflows/SpellCheck.yml  | 14 +++++---------
 .github/workflows/Tests.yml       | 31 +++++++++++++++++++++++++++++++
 .typos.toml                       |  4 +++-
 6 files changed, 75 insertions(+), 27 deletions(-)
 create mode 100644 .github/workflows/Downgrade.yml
 create mode 100644 .github/workflows/Tests.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index cd7b7f249..f901dd8a9 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -5,9 +5,6 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"
-    ignore:
-      - dependency-name: "crate-ci/typos"
-        update-types: ["version-update:semver-patch", "version-update:semver-minor"]
   - package-ecosystem: "julia"
     directories:
       - "/"
diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
new file mode 100644
index 000000000..225419c34
--- /dev/null
+++ b/.github/workflows/Downgrade.yml
@@ -0,0 +1,26 @@
+name: "Downgrade"
+
+on:
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - "docs/**"
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - "docs/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
+jobs:
+  downgrade:
+    name: "Downgrade"
+    uses: "SciML/.github/.github/workflows/downgrade.yml@v1"
+    with:
+      julia-version: "lts"
+      skip: "Pkg,TOML"
+    secrets: "inherit"
diff --git a/.github/workflows/FormatCheck.yml b/.github/workflows/FormatCheck.yml
index ee667ceff..9959198bf 100644
--- a/.github/workflows/FormatCheck.yml
+++ b/.github/workflows/FormatCheck.yml
@@ -1,22 +1,18 @@
-name: format-check
+name: "Format Check"
 
 on:
   push:
     branches:
-      - 'master'
-      - 'main'
-      - 'release-'
-    tags: '*'
+      - master
+    tags: ["*"]
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
 jobs:
   runic:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v3
-        with:
-          version: '1'
-      - uses: fredrikekre/runic-action@v1
-        with:
-          version: '1'
+    name: "Runic"
+    uses: "SciML/.github/.github/workflows/runic.yml@v1"
+    secrets: "inherit"
diff --git a/.github/workflows/SpellCheck.yml b/.github/workflows/SpellCheck.yml
index 746b039a1..2693fef09 100644
--- a/.github/workflows/SpellCheck.yml
+++ b/.github/workflows/SpellCheck.yml
@@ -1,13 +1,9 @@
-name: Spell Check
+name: "Spell Check"
 
 on: [pull_request]
 
 jobs:
-  typos-check:
-    name: Spell Check with Typos
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Actions Repository
-        uses: actions/checkout@v6
-      - name: Check spelling
-        uses: crate-ci/typos@v1.18.0 
\ No newline at end of file
+  spellcheck:
+    name: "Spell Check with Typos"
+    uses: "SciML/.github/.github/workflows/spellcheck.yml@v1"
+    secrets: "inherit"
diff --git a/.github/workflows/Tests.yml b/.github/workflows/Tests.yml
new file mode 100644
index 000000000..be48df269
--- /dev/null
+++ b/.github/workflows/Tests.yml
@@ -0,0 +1,31 @@
+name: "Tests"
+
+on:
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - "docs/**"
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - "docs/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
+jobs:
+  tests:
+    name: "Tests"
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - "1"
+          - "lts"
+    uses: "SciML/.github/.github/workflows/tests.yml@v1"
+    with:
+      julia-version: "${{ matrix.version }}"
+    secrets: "inherit"
diff --git a/.typos.toml b/.typos.toml
index 04fa59f48..8b7c2c30d 100644
--- a/.typos.toml
+++ b/.typos.toml
@@ -1,4 +1,6 @@
 [default.extend-words]
 quations = "quations"
 IIF = "IIF"
-padd = "padd"
\ No newline at end of file
+padd = "padd"
+thr = "thr"
+SIE = "SIE"
\ No newline at end of file