ci: add named spack environments with boost187 variant

.github/actions/setup-deps/action.yml

@@ -5,6 +5,9 @@ inputs:
   gcc:
     description: 'GCC version to use'
     required: true
+  env:
+    description: 'Spack environment name (latest, boost187)'
+    default: 'latest'
   fresh:
     description: 'Use fresh concretization'
     default: 'false'
@@ -28,7 +31,7 @@ runs:
     - name: Install dependencies
       shell: spack-bash {0}
       run: |
-        spack env create fairmq test/ci/spack.yaml
+        spack env create fairmq test/ci/spack-${{ inputs.env }}.yaml
         spack -e fairmq add gcc@${{ inputs.gcc }}
         spack -e fairmq config add "packages:all:require:'%gcc@${{ inputs.gcc }}'"
         spack -e fairmq install --fail-fast ${{ inputs.fresh == 'true' && '--fresh' || '' }}

.github/workflows/buildcache.yml

@@ -6,7 +6,7 @@ on:
     - cron: '0 3 * * 0'  # Weekly on Sunday at 3am UTC
   push:
     paths:
-      - 'test/ci/spack.yaml'
+      - 'test/ci/spack-*.yaml'
       - '.github/workflows/buildcache.yml'
 
 concurrency:
@@ -16,7 +16,7 @@ concurrency:
 jobs:
   build:
     if: github.repository == 'FairRootGroup/FairMQ'
-    name: gcc-${{ matrix.gcc }}
+    name: ${{ matrix.env }}-gcc-${{ matrix.gcc }}
     runs-on: ubuntu-latest
     permissions:
       packages: write
@@ -24,6 +24,10 @@ jobs:
       fail-fast: false
       matrix:
         gcc: ['12', '13', '14', '15']
+        env: ['latest']
+        include:
+          - gcc: '15'
+            env: 'boost187'
 
     env:
       GITHUB_USER: ${{ github.actor }}
@@ -42,7 +46,7 @@ jobs:
       - name: Create environment and login to OCI registry
         shell: spack-bash {0}
         run: |
-          spack env create fairmq test/ci/spack.yaml
+          spack env create fairmq test/ci/spack-${{ matrix.env }}.yaml
           spack -e fairmq mirror set --oci-username ${{ github.actor }} --oci-password-variable GITHUB_TOKEN ghcr-buildcache
 
       - name: Find system compiler
@@ -87,6 +91,6 @@ jobs:
       - name: Update buildcache index
         shell: spack-bash {0}
         run: |
-          spack env create fairmq test/ci/spack.yaml
+          spack env create fairmq test/ci/spack-latest.yaml
           spack -e fairmq mirror set --oci-username ${{ github.actor }} --oci-password-variable GITHUB_TOKEN ghcr-buildcache
           spack -e fairmq buildcache update-index ghcr-buildcache

test/ci/spack-boost187.yaml

@@ -1,6 +1,10 @@
 spack:
   specs:
-    - zlib-ng
+    - "fairlogger@2.2.0 ^fmt@:11"
+    - "boost@1.87 +container +program_options +filesystem +date_time +regex"
+    - "libzmq@4.1.4:"
+    - ninja
+    - "cmake@3.15:"
 
   config:
     install_tree:

test/ci/spack-latest.yaml

@@ -0,0 +1,17 @@
+spack:
+  specs:
+    - "fairlogger@2.2.0 ^fmt@:11"
+    - "boost@1.66: +container +program_options +filesystem +date_time +regex"
+    - "libzmq@4.1.4:"
+    - ninja
+    - "cmake@3.15:"
+
+  config:
+    install_tree:
+      root: /opt/spack
+      padded_length: 128
+
+  mirrors:
+    ghcr-buildcache:
+      url: oci://ghcr.io/fairrootgroup/fairmq-spack-buildcache
+      signed: false