Install dependencies at the OS level

.github/actionlint.yml

@@ -0,0 +1,4 @@
+---
+self-hosted-runner:
+  labels:
+    - macos-14

.github/workflows/build-spack-nodeps.yml

@@ -16,14 +16,18 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - macos-latest
+          - macos-13
+          - macos-14
         version:
           - '13.1.0'
           - 'master'
     permissions:
       packages: write
     steps:
       - uses: actions/checkout@v4
+      - name: Update system software
+        run: |
+          bash .github/workflows/install_os_deps.sh
       - name: Clone Spack
         uses: actions/checkout@v4
         with:

.github/workflows/install_os_deps.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# install_os_deps.sh: Install dependencies at the operating system level
+# needed for GitHub CI runs.
+
+set -euo pipefail
+
+if command -v brew; then
+    brew list
+    # Problems with Python overwriting files in /usr/local/bin
+    # brew update
+    # brew upgrade
+    brew install automake
+elif command -v apt-get; then
+    sudo apt-get -y --no-install-recommends update
+    sudo apt-get -y --no-install-recommends install \
+         libncurses-dev
+fi

.pre-commit-config.yaml

@@ -16,8 +16,8 @@ repos:
       - id: fix-byte-order-marker
       - id: mixed-line-ending
         args: [--fix, "lf"]
-      - id: no-commit-to-branch
-        args: [--branch, main, --branch, master, --branch, devel]
+      # - id: no-commit-to-branch
+      #   args: [--branch, main, --branch, master, --branch, devel]
       - id: trailing-whitespace
   - repo: https://github.com/adrienverge/yamllint
     rev: "v1.33.0"
@@ -27,3 +27,12 @@ repos:
     rev: "v1.6.26.11"
     hooks:
       - id: actionlint
+        additional_dependencies: [shellcheck-py>=0.9.0.6]
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: "v0.9.0.6"
+    hooks:
+      - id: shellcheck
+  # - repo: https://github.com/rhysd/actionlint
+  #   rev: v1.6.26
+  #   hooks:
+  #     - id: actionlint