CI: move nightly macOS builds from GA to pipelines (#32231)

Modifications:
- [x] Delete the `macOS builds nightly` workflow
- [x] Removed shield in README.md
- [x] Moved corresponding specs to `e4s-macos` 

3 files changed, 5 insertions, 72 deletions

diff --git a/.github/workflows/macos_python.yml b/.github/workflows/macos_python.yml
deleted file mode 100644
index d07d911da2..0000000000
--- a/.github/workflows/macos_python.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-# These are nightly package tests for macOS
-# focus areas:
-# - initial user experience
-# - scientific python stack
-name: macOS builds nightly
-
-on:
-  schedule:
-    # nightly at 1 AM
-    - cron: '0 1 * * *'
-  pull_request:
-    branches:
-    - develop
-    paths:
-      # Run if we modify this yaml file
-      - '.github/workflows/macos_python.yml'
-      # TODO: run if we touch any of the recipes involved in this
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_number }}
-  cancel-in-progress: true
-
-# GitHub Action Limits
-# https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions
-
-jobs:
-  install_gcc:
-    name: gcc with clang
-    if: github.repository == 'spack/spack'
-    runs-on: macos-latest
-    steps:
-    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
-    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
-      with:
-        python-version: 3.9
-    - name: spack install
-      run: |
-        . .github/workflows/install_spack.sh
-        # 9.2.0 is the latest version on which we apply homebrew patch
-        spack install -v --fail-fast gcc@11.2.0 %apple-clang
-
-  install_jupyter_clang:
-    name: jupyter
-    if: github.repository == 'spack/spack'
-    runs-on: macos-latest
-    timeout-minutes: 700
-    steps:
-    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
-    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
-      with:
-        python-version: 3.9
-    - name: spack install
-      run: |
-        . .github/workflows/install_spack.sh
-        spack install -v --fail-fast py-jupyterlab %apple-clang
-
-  install_scipy_clang:
-    name: scipy, mpl, pd
-    if: github.repository == 'spack/spack'
-    runs-on: macos-latest
-    steps:
-    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
-    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
-      with:
-        python-version: 3.9
-    - name: spack install
-      run: |
-        . .github/workflows/install_spack.sh
-        spack install -v --fail-fast py-scipy %apple-clang
-        spack install -v --fail-fast py-matplotlib %apple-clang
-        spack install -v --fail-fast py-pandas %apple-clang
diff --git a/README.md b/README.md
index df05837be8..fea23bb408 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,6 @@
 
 [![Unit Tests](https://github.com/spack/spack/workflows/linux%20tests/badge.svg)](https://github.com/spack/spack/actions)
 [![Bootstrapping](https://github.com/spack/spack/actions/workflows/bootstrap.yml/badge.svg)](https://github.com/spack/spack/actions/workflows/bootstrap.yml)
-[![macOS Builds (nightly)](https://github.com/spack/spack/workflows/macOS%20builds%20nightly/badge.svg?branch=develop)](https://github.com/spack/spack/actions?query=workflow%3A%22macOS+builds+nightly%22)
 [![codecov](https://codecov.io/gh/spack/spack/branch/develop/graph/badge.svg)](https://codecov.io/gh/spack/spack)
 [![Containers](https://github.com/spack/spack/actions/workflows/build-containers.yml/badge.svg)](https://github.com/spack/spack/actions/workflows/build-containers.yml)
 [![Read the Docs](https://readthedocs.org/projects/spack/badge/?version=latest)](https://spack.readthedocs.io)
diff --git a/share/spack/gitlab/cloud_pipelines/stacks/e4s-mac/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/e4s-mac/spack.yaml
index a97101f16f..34517c1fa9 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/e4s-mac/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/e4s-mac/spack.yaml
@@ -22,6 +22,11 @@ spack:
   - easy_specs:
     - berkeley-db
     - ncurses
+    - gcc
+    - py-jupyterlab
+    - py-scipy
+    - py-matplotlib
+    - py-pandas
 
   - arch:
     - '%apple-clang@13.1.6 target=m1'