Add SINGULARITY env and make regression use it

Signed-off-by: Derek Hower <[email protected]>

Author: Derek Hower

.github/workflows/regress.yml

@@ -13,6 +13,8 @@ jobs:
       - uses: pre-commit/[email protected]
   regress-smoke:
     runs-on: ubuntu-latest
+    env:
+      SINGULARITY: 1
     steps:
       - name: Clone Github Repo Action
         uses: actions/checkout@v4
@@ -45,6 +47,7 @@ jobs:
     env:
       MANUAL_NAME: isa
       VERSIONS: all
+      SINGULARITY: 1
     steps:
       - name: Clone Github Repo Action
         uses: actions/checkout@v4
@@ -75,6 +78,7 @@ jobs:
     env:
       EXT: B
       VERSION: latest
+      SINGULARITY: 1
     steps:
       - name: Clone Github Repo Action
         uses: actions/checkout@v4
@@ -102,6 +106,8 @@ jobs:
   regress-gen-certificate:
     runs-on: ubuntu-latest
     needs: regress-smoke
+    env:
+      SINGULARITY: 1
     steps:
       - name: Clone Github Repo Action
         uses: actions/checkout@v4
@@ -129,6 +135,8 @@ jobs:
   regress-gen-profile:
     runs-on: ubuntu-latest
     needs: regress-smoke
+    env:
+      SINGULARITY: 1
     steps:
       - name: Clone Github Repo Action
         uses: actions/checkout@v4

bin/setup

@@ -32,13 +32,16 @@ CONTAINER_TAG=`cat ${ROOT}/bin/.container-tag`
 #  1. devcontainer, if DEVCONTAINER_ENV is set in the enviornment
 #  2. the type stored in .container-type
 #  3. Docker, if DOCKER is set in the enviornment
-#  4. The choice made by the user, which will be cached in .container-type
+#  4. Singularity, if SINGULARITY is set in the enviornment
+#  5. The choice made by the user, which will be cached in .container-type
 if [ -v DEVCONTAINER_ENV ]; then
 CONTAINER_TYPE=devcontainer
 elif [ -f ${ROOT}/.container-type ]; then
 CONTAINER_TYPE=`cat ${ROOT}/.container-type`
 elif [ -v DOCKER ]; then
 CONTAINER_TYPE=docker
+elif [ -v SINGULARITY ]; then
+CONTAINER_TYPE=singularity
 else
   echo -e "UDB tools run in a container. Both Docker and Singularity/Apptainer are supported.\\n\\n1. Docker\\n2. Singularity\\n"
   while true; do