Adding a very basic CI test that just installs the shell.

ASGS can take a long time to build everything, so this is a very short
test that makes sure that the shell can be installed via:

  ./init-asgs.sh -b -x "--update-shell"

This will generate ./asgsh and ./update-asgs.

.github/workflows/01-basic.yaml

@@ -0,0 +1,44 @@
+name: Run Scripts on ci-test Branch
+
+on:
+  push:
+    branches:
+      - ci-test
+  pull_request:
+    branches:
+      - ci-test
+
+jobs:
+  run-scripts:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install Ubuntu packages
+        run: |
+          apt-get -y update
+          apt-get install -y build-essential checkinstall
+          apt-get install -y libssl-dev libexpat1-dev
+          apt-get install -y gfortran wget curl vim screen htop tmux git bc
+          apt-get install -y zip flex gawk procps
+          apt-get install -y zlib1g-dev
+
+          # Install the older GCCs we want, set them to system defaults
+          apt-get install -y gcc-9 g++-9 gfortran-9
+          update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 9
+          update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 9
+          update-alternatives --install /usr/bin/gfortran gfortran /usr/bin/gfortran-9 9
+
+      - name: Set TERM and run install script
+        run: |
+          export TERM=xterm
+          chmod +x ./ci/01-install-shell-only.sh
+          ./ci/01-install-shell-only.sh
+
+      - name: Run OpenMPI installation script
+        run: |
+          chmod +x ./ci/02-install-openmpi.sh
+          ./ci/02-install-openmpi.sh
+        timeout-minutes: 120

ci/01-install-shell-only.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+./init-asgs.sh -b -x "--update-shell"
+
+if [ ! -e ./asgsh ]; then
+  echo "01 not ok - can't find ./asgsh" >&2
+  exit 1
+fi
+
+echo "01 ok - found ./asgsh"
+
+if [ ! -e ./update-asgs ]; then
+  echo "02 not ok - can't find ./update-asgs" >&2
+  exit 1
+fi
+
+echo "02 ok - found ./update-asgs"

ci/02-install-openmpi.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+./init-asgs.sh -b -x "--run-steps openmpi"