Compare old and new lock projects and diff

Author: zmackie

cmd/dep/root_analyzer.go

@@ -6,6 +6,7 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"io/ioutil"
 	"log"
 
@@ -167,9 +168,19 @@ func (a *rootAnalyzer) DeriveManifestAndLock(dir string, pr gps.ProjectRoot) (gp
 func (a *rootAnalyzer) FinalizeRootManifestAndLock(m *dep.Manifest, l *dep.Lock, ol dep.Lock) {
 	// Iterate through the new projects in solved lock and add them to manifest
 	// if they are direct deps and log feedback for all the new projects.
-	for _, y := range l.Projects() {
+	sl := gps.SortedLockedProjects(l.Projects())
+	sol := gps.SortedLockedProjects(ol.Projects())
+	for i, y := range sl {
 		var f *fb.ConstraintFeedback
 		pr := y.Ident().ProjectRoot
+		if i < len(sol) {
+			op := sol[i]
+			if same := y.Ident().Eq(op.Ident()); same {
+				if diff := gps.DiffProjects(y, op); diff != nil {
+					fmt.Printf("Some changes: \nImported: %v\nRevised: %v\nDiff: %v\n", y, op, diff)
+				}
+			}
+		}
 		// New constraints: in new lock and dir dep but not in manifest
 		if _, ok := a.directDeps[string(pr)]; ok {
 			if _, ok := m.Constraints[pr]; !ok {