Filter out contributors and authors with no recorded changes in stats calculations

Author: KebanFiru

src/services/StatsService.ts

@@ -551,6 +551,8 @@ export class StatsService {
 
 		return Array.from(stats.entries())
 			.map(([name, v]) => ({ name, added: v.added, deleted: v.deleted }))
+			// Filter out authors with no recorded changes (added + deleted === 0)
+			.filter(item => (item.added + item.deleted) > 0)
 			.sort((a, b) => (b.added + b.deleted) - (a.added + a.deleted));
 	}
 
@@ -599,6 +601,8 @@ export class StatsService {
 
 		return Array.from(stats.entries())
 			.map(([name, v]) => ({ name, added: v.added, deleted: v.deleted }))
+			// Exclude authors with zero total changes when aggregating across all refs
+			.filter(item => (item.added + item.deleted) > 0)
 			.sort((a, b) => (b.added + b.deleted) - (a.added + a.deleted));
 	}
 

src/views/StatsTreeProvider.ts

@@ -179,15 +179,21 @@ export class StatsTreeProvider implements vscode.TreeDataProvider<StatsNode> {
 			return [new StatsNode('info', 'No Git history available', vscode.TreeItemCollapsibleState.None)];
 		}
 
-		const totalChanges = result.stats.reduce((sum, s) => sum + (s.added + s.deleted), 0);
+		// Only include contributors with at least one change
+		const effectiveStats = result.stats.filter(s => (s.added + s.deleted) > 0);
+		if (effectiveStats.length === 0) {
+			return [new StatsNode('info', 'No contributors with changes found', vscode.TreeItemCollapsibleState.None)];
+		}
+
+		const totalChanges = effectiveStats.reduce((sum, s) => sum + (s.added + s.deleted), 0);
 		const totalNode = new StatsNode(
 			'info',
-			`Total contributors: ${result.stats.length}`,
+			`Total contributors: ${effectiveStats.length}`,
 			vscode.TreeItemCollapsibleState.None
 		);
 		totalNode.description = `${totalChanges.toLocaleString()} total changes`;
 
-		return [totalNode, ...result.stats.map((entry) => {
+		return [totalNode, ...effectiveStats.map((entry) => {
 			const entryTotal = entry.added + entry.deleted;
 			const percent = totalChanges > 0 ? Math.round((entryTotal / totalChanges) * 100) : 0;
 			const description = `${entryTotal.toLocaleString()} changes (${percent}%)`;
@@ -207,15 +213,21 @@ export class StatsTreeProvider implements vscode.TreeDataProvider<StatsNode> {
 			return [new StatsNode('info', 'No Git history available', vscode.TreeItemCollapsibleState.None)];
 		}
 
-		const totalChanges = result.stats.reduce((sum, s) => sum + (s.added + s.deleted), 0);
+		// Only include contributors with recorded changes across repository history
+		const effectiveStats = result.stats.filter(s => (s.added + s.deleted) > 0);
+		if (effectiveStats.length === 0) {
+			return [new StatsNode('info', 'No contributors with changes found', vscode.TreeItemCollapsibleState.None)];
+		}
+
+		const totalChanges = effectiveStats.reduce((sum, s) => sum + (s.added + s.deleted), 0);
 		const totalNode = new StatsNode(
 			'info',
-			`Total contributors (all): ${result.stats.length}`,
+			`Total contributors (all): ${effectiveStats.length}`,
 			vscode.TreeItemCollapsibleState.None
 		);
 		totalNode.description = `${totalChanges.toLocaleString()} total changes (repository)`;
 
-		return [totalNode, ...result.stats.map((entry) => {
+		return [totalNode, ...effectiveStats.map((entry) => {
 			const entryTotal = entry.added + entry.deleted;
 			const percent = totalChanges > 0 ? Math.round((entryTotal / totalChanges) * 100) : 0;
 			const description = `${entryTotal.toLocaleString()} changes (${percent}%)`;

src/views/webview/components/repoAnalytics.ts

@@ -29,7 +29,8 @@ export const renderRepoAnalytics = (result: RepoAnalyticsResult): string => {
     const monthLabels = result.commitsByMonth.map(item => item.month);
     const monthCommitData = result.commitsByMonth.map(item => item.commits);
     const monthChangeData = result.commitsByMonth.map(item => item.added + item.deleted);
-    const topAuthors = result.commitsByAuthor.slice(0, 8);
+    const effectiveAuthors = result.commitsByAuthor.filter(a => (a.added + a.deleted) > 0);
+    const topAuthors = effectiveAuthors.slice(0, 8);
     const authorColors = generateColors(topAuthors.length);
     const authorLabels = topAuthors.map(item => escapeHtml(item.author));
     const authorCommitData = topAuthors.map(item => item.commits);
@@ -43,7 +44,7 @@ export const renderRepoAnalytics = (result: RepoAnalyticsResult): string => {
             <div class="metric-grid">
                 <div class="metric-card">
                     <div class="metric-title">Total Contributors</div>
-                    <div class="metric-value">${result.commitsByAuthor.length.toLocaleString()}</div>
+                    <div class="metric-value">${effectiveAuthors.length.toLocaleString()}</div>
                     <div class="metric-note">${result.totalAdded.toLocaleString()} added, ${result.totalDeleted.toLocaleString()} deleted</div>
                 </div>
                 <div class="metric-card">