jsonschema: use more specific schema identifiers

The latest version of `jsonschema` fails if we're not specific about which schema draft
specification we're using.  Update all of them to use the latest one (draft-07).

lib/spack/spack/schema/bootstrap.py

@@ -39,7 +39,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack bootstrap configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/buildcache_spec.py

@@ -11,7 +11,7 @@
 import spack.schema.spec
 
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack buildcache specfile schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/cdash.py

@@ -28,7 +28,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack cdash configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/compilers.py

@@ -84,7 +84,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack compiler configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/config.py

@@ -110,7 +110,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack core configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/database_index.py

@@ -14,7 +14,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack spec schema',
     'type': 'object',
     'required': ['database'],

lib/spack/spack/schema/env.py

@@ -52,7 +52,7 @@
 projections_scheme = spack.schema.projections.properties['projections']
 
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack environment file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/gitlab_ci.py

@@ -153,7 +153,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack gitlab-ci configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/merged.py

@@ -40,7 +40,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack merged configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/mirrors.py

@@ -37,7 +37,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack mirror configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/modules.py

@@ -219,7 +219,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack module file configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/packages.py

@@ -154,7 +154,7 @@ def deprecate_paths_and_modules(instance, deprecated_properties):
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack package configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/projections.py

@@ -25,7 +25,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack view projection configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/repos.py

@@ -22,7 +22,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack repository configuration file schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/spec.py

@@ -192,7 +192,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack spec schema',
     'type': 'object',
     'additionalProperties': False,

lib/spack/spack/schema/upstreams.py

@@ -31,7 +31,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack core configuration file schema',
     'type': 'object',
     'additionalProperties': False,