chore: Optimise runs when targets are filtered

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.7.0] - 2026-02-14
+
+### Changed
+- Skip expensive target detection (file scanning, taint import checks) for targets excluded by `TARGETS` filter
+
 ## [0.6.0] - 2026-02-14
 
 ### Added
@@ -83,6 +88,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Multi-stage Docker build
 - Automated vendor upgrade workflow
 
+[0.7.0]: https://github.com/gooddata/gooddata-goodchanges/compare/v0.6.0...v0.7.0
 [0.6.0]: https://github.com/gooddata/gooddata-goodchanges/compare/v0.5.1...v0.6.0
 [0.5.1]: https://github.com/gooddata/gooddata-goodchanges/compare/v0.5.0...v0.5.1
 [0.5.0]: https://github.com/gooddata/gooddata-goodchanges/compare/v0.4.0...v0.5.0

VERSION

@@ -1 +1 @@
-0.6.0
+0.7.0

main.go

@@ -251,10 +251,19 @@ func main() {
 	}
 	changedE2E := make(map[string]*TargetResult)
 
+	// Parse TARGETS filter early to skip expensive detection for non-matching targets
+	var targetPatterns []string
+	if targetsEnv := os.Getenv("TARGETS"); targetsEnv != "" {
+		targetPatterns = strings.Split(targetsEnv, ",")
+	}
+
 	for _, rp := range rushConfig.Projects {
 		cfg := rush.LoadProjectConfig(rp.ProjectFolder)
 
 		if cfg.IsTarget() {
+			if len(targetPatterns) > 0 && !matchesTargetFilter(rp.PackageName, targetPatterns) {
+				continue
+			}
 			// Target detection with 4 conditions:
 			//   1. Direct file changes (outside ignores)
 			//   2. External dep changes in lockfile
@@ -312,6 +321,9 @@ func main() {
 				}
 			}
 		} else if cfg.IsVirtualTarget() && cfg.TargetName != nil {
+			if len(targetPatterns) > 0 && !matchesTargetFilter(*cfg.TargetName, targetPatterns) {
+				continue
+			}
 			// Virtual target: check changeDirs for file changes or tainted imports.
 			// Normal dirs trigger a full run; fine-grained dirs collect specific affected files.
 			normalTriggered := false
@@ -365,18 +377,6 @@ func main() {
 		return e2eList[i].Name < e2eList[j].Name
 	})
 
-	// Filter targets if TARGETS env is set (comma-delimited, supports * globs)
-	if targetsEnv := os.Getenv("TARGETS"); targetsEnv != "" {
-		patterns := strings.Split(targetsEnv, ",")
-		var filtered []*TargetResult
-		for _, result := range e2eList {
-			if matchesTargetFilter(result.Name, patterns) {
-				filtered = append(filtered, result)
-			}
-		}
-		e2eList = filtered
-	}
-
 	if flagLog {
 		logf("Affected e2e packages (%d):\n", len(e2eList))
 		for _, result := range e2eList {