Merge pull request #1684 from forcedotcom/sc/W-17321151

CHANGE: @W-17321151@: Only show fields in detail view of rules command if they are non-empty

Author: stephen-carter-at-sf

src/lib/viewers/RuleViewer.ts

@@ -38,14 +38,31 @@ export class RuleDetailDisplayer extends AbstractRuleDisplayer {
 			const rule = rules[i];
 			const header = getMessage(BundleName.RuleViewer, 'summary.detail.header', [i + 1, rule.getName()]);
 			const severity = rule.getSeverityLevel();
+
 			const body = {
-				engine: rule.getEngineName(),
 				severity: `${severity.valueOf()} (${SeverityLevel[severity]})`,
-				tags: rule.getTags().join(', '),
-				resources: rule.getResourceUrls().join(', '),
-				description: rule.getDescription()
+				engine: rule.getEngineName(),
 			};
-			const keys = ['severity', 'engine', 'tags', 'resources', 'description'];
+			const keys: string[] = ['severity', 'engine'];
+
+			if (rule.getTags().length > 0) {
+				body['tags'] = rule.getTags().join(', ');
+				keys.push('tags');
+			}
+
+			if (rule.getResourceUrls().length == 1) {
+				body['resource'] = rule.getResourceUrls()[0];
+				keys.push('resource');
+			} else if (rule.getResourceUrls().length > 1) {
+				body['resources'] = rule.getResourceUrls();
+				keys.push('resources');
+			}
+
+			if (rule.getDescription().length > 0) {
+				body['description'] = rule.getDescription();
+				keys.push('description');
+			}
+
 			styledRules.push(toStyledHeaderAndBody(header, body, keys));
 		}
 		this.display.displayLog(styledRules.join('\n\n'));

test/fixtures/comparison-files/lib/viewers/RuleViewer.test.ts/one-rule-details.txt

@@ -3,5 +3,5 @@
     severity:    2 (High)
     engine:      FakeEngine1
     tags:        Recommended, Security
-    resources:   www.google.com
+    resource:    www.google.com
     description: This is the description for a stub rule. Blah blah blah.

test/fixtures/comparison-files/lib/viewers/RuleViewer.test.ts/two-rules-details.txt

@@ -3,12 +3,14 @@
     severity:    2 (High)
     engine:      FakeEngine1
     tags:        Recommended, Security
-    resources:   www.google.com
+    resource:    www.google.com
     description: This is the description for a stub rule. Blah blah blah.
 
 === 2. StubRule2
     severity:    4 (Low)
     engine:      FakeEngine1
     tags:        CodeStyle, Performance
-    resources:   www.bing.com, www.salesforce.com
+    resources:
+        www.bing.com
+        www.salesforce.com
     description: This is the description for a second stub rule. Blah blah blah.