refactor: purge Python from CI validation pipeline via yq

Author: hyperpolymath

.github/workflows/dogfood-gate.yml

@@ -256,28 +256,34 @@ jobs:
 
           echo "has_manifest=true" >> "$GITHUB_OUTPUT"
 
-          # Validate TOML structure using Python 3.11+ tomllib
-          python3 -c "
-          import tomllib, sys
-          with open('eclexiaiser.toml', 'rb') as f:
-              data = tomllib.load(f)
-          project = data.get('project', {})
-          if not project.get('name', '').strip():
-              print('ERROR: project.name is required', file=sys.stderr)
-              sys.exit(1)
-          functions = data.get('functions', [])
-          if not functions:
-              print('ERROR: at least one [[functions]] entry is required', file=sys.stderr)
-              sys.exit(1)
-          for fn in functions:
-              if not fn.get('name', '').strip():
-                  print('ERROR: function name cannot be empty', file=sys.stderr)
-                  sys.exit(1)
-              if not fn.get('source', '').strip():
-                  print(f'ERROR: function {fn[\"name\"]} has no source path', file=sys.stderr)
-                  sys.exit(1)
-          print(f'Valid: {project[\"name\"]} ({len(functions)} function(s))')
-          " || {
+          # Validate TOML structure using pre-installed yq
+          (
+            PROJECT_NAME=$(yq -e '.project.name // ""' eclexiaiser.toml)
+            if [ -z "$PROJECT_NAME" ]; then
+                echo "ERROR: project.name is required" >&2
+                exit 1
+            fi
+
+            FUNCTIONS_LEN=$(yq -e '.functions | length' eclexiaiser.toml)
+            if [ -z "$FUNCTIONS_LEN" ] || [ "$FUNCTIONS_LEN" -eq 0 ]; then
+                echo "ERROR: at least one [[functions]] entry is required" >&2
+                exit 1
+            fi
+
+            for i in $(seq 0 $((FUNCTIONS_LEN - 1))); do
+                FN_NAME=$(yq -e ".functions[$i].name // \"\"" eclexiaiser.toml)
+                if [ -z "$FN_NAME" ]; then
+                    echo "ERROR: function name cannot be empty" >&2
+                    exit 1
+                fi
+                FN_SRC=$(yq -e ".functions[$i].source // \"\"" eclexiaiser.toml)
+                if [ -z "$FN_SRC" ]; then
+                    echo "ERROR: function $FN_NAME has no source path" >&2
+                    exit 1
+                fi
+            done
+            echo "Valid: $PROJECT_NAME ($FUNCTIONS_LEN function(s))"
+          ) || {
             echo "::error file=eclexiaiser.toml::Invalid eclexiaiser.toml — see step output for details"
             exit 1
           }