[skip ci] Infra Update: spack.yaml Simplification, new Projections (#7

)

* [skip ci] spack.yaml: Simplify modules, update spack.packages.all section, update projections to include hash

* [skip ci] spack.yaml: Remove hash from root projection

* [skip ci] spack.yaml: Update to be in line with `model-deployment-template`

* [skip ci] spack.yaml: Update to be in line with ACCESS-NRI/model-deployment-template@569cd3e

spack.yaml

@@ -4,54 +4,50 @@
 # configuration settings.
 spack:
   specs:
+    # The root Spack Bundle Recipe (SBR) for the model and overall version of
+    # the deployment:
     # TODO: Replace the MODEL and VERSION.
-    # The root SBD for the model and overall version of the deployment:
     # - [email protected]
+
   packages:
-    # TODO: Specify versions and variants of dependencies where required
-    # Specification of dependency versions and variants goes here.
-    # CI/CD requires that the first element of the require is only a version:
+    # Specification of dependency versions and variants. CI/CD requires that
+    # the first element of the require is only a version:
+    # TODO: Specify versions and variants of dependencies as required.
     # openmpi:
     #   require:
-    #     - '@4.0.2'
+    #     - '@4.1.5'
 
     # Specifications that apply to all packages
     all:
       # TODO: Specify compiler/targets for all packages
-      # compiler: [[email protected]]
-      # target: [x86_64]
+      # require:
+      #   - '%[email protected]'
+      #   - 'target=x86_64'
   view: true
   concretizer:
     unify: true
   modules:
     default:
-      enable:
-        - tcl
-      roots:
-        tcl: $spack/../release/modules
-        lmod: $spack/../release/lmod
       tcl:
-        hash_length: 0
         include:
-          # Explicitly, which packages are accessible as modules
-          # TODO: Add packages that will be included as modules
+          # TODO: Add MODEL and PACKAGEs that will have a corresponding module
           # - MODEL
-        exclude_implicits: true
-        all:
-          autoload: direct
-          conflict:
-            - '{name}'
-          environment:
-            set:
-              'SPACK_{name}_ROOT': '{prefix}'
+          # - PACKAGE1
+          # - PACKAGE2
         projections:
-          # TODO: Add explicit projections for modules that will be found with `module load`.
-          # Naming scheme for the above included modules.
-          # These projection versions must be the same as the
-          # `spack.packages.*.require[0]` version but without the `@git.`.
-          # Ex. `require` version `@git.2024.04.21` -> projection `2024.04.21`.
-          all: '{name}/{version}'
+          # These projection VERSIONs must be the same as the
+          # `spack.packages.*.require[0]` VERSION but without the `@git.` and
+          # without the RHS of the equals sign, if there is one.
+          #
+          # For a MODEL, an example projection is `{name}/2024.10.0`.
+          # For a PACKAGE where `require` VERSION is
+          # `@git.2024.04.21=access-esm1.5`, the projection becomes
+          # `{name}/2024.04.21-{hash:7}`.
+          # TODO: Add explicit projections for modules that will be found with
+          #       `module load`.
           # MODEL: '{name}/VERSION'
+          # PACKAGE1: '{name}/VERSION1-{hash:7}'
+          # PACKAGE2: '{name}/VERSION2-{hash:7}'
   # config:
   #   overridden spack configurations, if needed
   # mirrors: