fix(policies): support camelcase in input names (#1490)

Signed-off-by: Jose I. Paris <jiparis@chainloop.dev>

Author: jiparis

app/controlplane/api/workflowcontract/v1/crafting_schema.pb.go

@@ -240,8 +240,8 @@ message PolicyInput {
     // NOTE: validations can not be shared yet https://github.com/bufbuild/protovalidate/issues/51
     cel: {
       message: "must contain only lowercase letters, numbers, and hyphens."
-      expression: "this.matches('^[a-z0-9]([-a-z0-9]*[a-z0-9])?$')"
-      id: "name.dns-1123"
+      expression: "this.matches('^[a-zA-Z][a-zA-Z0-9_]*$')"
+      id: "name.go_map_variable"
     }
   }];
   string description = 2;

app/controlplane/api/workflowcontract/v1/crafting_schema.proto

@@ -264,17 +264,17 @@ func (s *groupsTestSuite) TestGroupInputs() {
 	}{
 		{
 			name:   "group inputs with interpolation, default values",
-			args:   map[string]string{"username": "devel"},
+			args:   map[string]string{"user_name": "devel"},
 			wanted: "the email is: devel@chainloop.dev",
 		},
 		{
 			name:    "missing username input",
 			wantErr: true,
-			errMsg:  "missing required input \"username\"",
+			errMsg:  "missing required input \"user_name\"",
 		},
 		{
 			name:   "group inputs with interpolation, all values",
-			args:   map[string]string{"username": "foo", "domain": "bar.com"},
+			args:   map[string]string{"user_name": "foo", "domainName": "bar.com"},
 			wanted: "the email is: foo@bar.com",
 		},
 	}

pkg/policies/policy_groups_test.go

@@ -7,9 +7,9 @@ metadata:
     category: test
 spec:
   inputs:
-    - name: username
+    - name: user_name
       required: true
-    - name: domain
+    - name: domainName
       required: false
       default: "chainloop.dev"
   policies:
@@ -19,5 +19,5 @@ spec:
         policies:
           - ref: file://testdata/policy_with_inputs.yaml
             with:
-              email: "{{inputs.username}}@{{inputs.domain}}"
+              email: "{{inputs.user_name}}@{{inputs.domainName}}"