Add test to ensure package metadata is represented in the JSON schema (#1841)

* [wip] try to reflect metadata types... probably wont work

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* refactor to add unit test to ensure there is coverage in the schema

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* [wip] generate metadata container

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* add generation of metadata container struct for JSON schema generation

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* fix linting

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update linter script to account for code generation

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

---------

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

.github/scripts/json-schema-drift-check.sh

@@ -1,27 +1,17 @@
 #!/usr/bin/env bash
 set -u
 
-if ! git diff-index --quiet HEAD --; then
-  git diff-index HEAD --
-  git --no-pager diff
-  echo "there are uncommitted changes, please commit them before running this check"
+if [ "$(git status --porcelain | wc -l)" -ne "0" ]; then
+  echo "  🔴 there are uncommitted changes, please commit them before running this check"
   exit 1
 fi
 
-success=true
-
 if ! make generate-json-schema; then
   echo "Generating json schema failed"
-  success=false
+  exit 1
 fi
 
-if ! git diff-index --quiet HEAD --; then
-  git diff-index HEAD --
-  git --no-pager diff
-  echo "JSON schema drift detected!"
-  success=false
-fi
-
-if ! $success; then
+if [ "$(git status --porcelain | wc -l)" -ne "0" ]; then
+  echo "  🔴 there are uncommitted changes, please commit them before running this check"
   exit 1
 fi