[TESTING] Fix dependency graph when no repos given

Fix dependency graph build when no repos were given to `upgrade`.

FIXME: if this works must still add a `--no-deps` or such flag to enable
compatibility with previous versions if deemed so...

FIXME: squash later

Signed-off-by: Fabio Utzig <utzig@apache.org>

Author: utzig

newt/deprepo/deprepo.go

@@ -118,13 +118,13 @@ func isInReqs(repo string, reqs RequirementMap) bool {
 
 // Builds a repo dependency graph from the repo requirements expressed in the
 // `project.yml` file.
-func BuildDepGraph(repos RepoMap, rootReqs RequirementMap) (DepGraph, error) {
+func BuildDepGraph(repos RepoMap, rootReqs RequirementMap, noDeps bool) (DepGraph, error) {
 	dg := DepGraph{}
 
 	// First, add the hard dependencies expressed in `project.yml`.
 	for repoName, verReq := range rootReqs {
 		repo, ok := repos[repoName]
-		if !ok {
+		if !ok && noDeps {
 			continue
 		}
 		normalizedReq, err := repo.NormalizeVerReq(verReq)
@@ -140,14 +140,14 @@ func BuildDepGraph(repos RepoMap, rootReqs RequirementMap) (DepGraph, error) {
 	// Add inter-repo dependencies to the graph.
 	for _, r := range repos.Sorted() {
 		nvers, err := r.NormalizedVersions()
-		if err != nil && isInReqs(r.Name(), rootReqs) {
+		if err != nil && noDeps && isInReqs(r.Name(), rootReqs) {
 			return nil, err
 		}
 		for _, v := range nvers {
 			deps := r.DepsForVersion(v)
 			reqMap := RequirementMap{}
 			for _, d := range deps {
-				if !isInReqs(d.Name, rootReqs) {
+				if noDeps && !isInReqs(d.Name, rootReqs) {
 					continue
 				}
 				depRepo := repos[d.Name]

newt/install/install.go

@@ -416,7 +416,7 @@ func (inst *Installer) versionMapRepos(
 
 // Calculates a map of repos and version numbers that should be included in an
 // install or upgrade operation.
-func (inst *Installer) calcVersionMap(candidates []*repo.Repo) (
+func (inst *Installer) calcVersionMap(candidates []*repo.Repo, noDeps bool) (
 	deprepo.VersionMap, error) {
 
 	// Repos that depend on any specified repos must also be considered during
@@ -463,7 +463,7 @@ func (inst *Installer) calcVersionMap(candidates []*repo.Repo) (
 
 	// Construct a repo dependency graph from the `project.yml` version
 	// requirements and from each repo's dependency list.
-	dg, err := deprepo.BuildDepGraph(inst.repos, inst.reqs)
+	dg, err := deprepo.BuildDepGraph(inst.repos, inst.reqs, noDeps)
 	if err != nil {
 		return nil, err
 	}
@@ -550,13 +550,13 @@ func verifyNewtCompat(repos []*repo.Repo, vm deprepo.VersionMap) error {
 
 // Installs or upgrades the specified set of repos.
 func (inst *Installer) Upgrade(candidates []*repo.Repo, force bool,
-	ask bool) error {
+	ask bool, noDeps bool) error {
 
 	if err := verifyRepoDirtyState(candidates, force); err != nil {
 		return err
 	}
 
-	vm, err := inst.calcVersionMap(candidates)
+	vm, err := inst.calcVersionMap(candidates, noDeps)
 	if err != nil {
 		return err
 	}
@@ -682,7 +682,7 @@ func (inst *Installer) Info(repos []*repo.Repo, remote bool) error {
 			}
 		}
 
-		vm, err := inst.calcVersionMap(repos)
+		vm, err := inst.calcVersionMap(repos, false)
 		if err != nil {
 			return err
 		}

newt/project/project.go

@@ -332,7 +332,7 @@ func (proj *Project) UpgradeIf(
 		return err
 	}
 
-	return inst.Upgrade(specifiedRepoList, force, ask)
+	return inst.Upgrade(specifiedRepoList, force, ask, len(okRepos) > 0)
 }
 
 func (proj *Project) InfoIf(predicate func(r *repo.Repo) bool,