// GETLayersPackagesDiff returns the list of packages that a layer installs and
// removes if it exists.
func GETLayersPackagesDiff(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
// Find layer.
layer, err := database.FindOneLayerByID(p.ByName("id"), []string{database.FieldLayerPackages})
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
// Find layer's packages.
installedPackages, removedPackages := make([]*database.Package, 0), make([]*database.Package, 0)
if len(layer.InstalledPackagesNodes) > 0 {
installedPackages, err = database.FindAllPackagesByNodes(layer.InstalledPackagesNodes, []string{database.FieldPackageOS, database.FieldPackageName, database.FieldPackageVersion})
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
}
if len(layer.RemovedPackagesNodes) > 0 {
removedPackages, err = database.FindAllPackagesByNodes(layer.RemovedPackagesNodes, []string{database.FieldPackageOS, database.FieldPackageName, database.FieldPackageVersion})
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
}
httputils.WriteHTTP(w, http.StatusOK, struct{ InstalledPackages, RemovedPackages []*database.Package }{InstalledPackages: installedPackages, RemovedPackages: removedPackages})
}
// getSuccessorsFromPackagesNodes returns the node list of packages that have
// versions following the versions of the provided packages.
func getSuccessorsFromPackagesNodes(packagesNodes []string) ([]string, error) {
if len(packagesNodes) == 0 {
return []string{}, nil
}
// Get packages.
packages, err := database.FindAllPackagesByNodes(packagesNodes, []string{database.FieldPackageNextVersion})
if err != nil {
return []string{}, err
}
// Find all packages' successors.
var packagesNextVersions []string
for _, pkg := range packages {
nextVersions, err := pkg.NextVersions([]string{})
if err != nil {
return []string{}, err
}
for _, version := range nextVersions {
packagesNextVersions = append(packagesNextVersions, version.Node)
}
}
return packagesNextVersions, nil
}
// GETLayersPackages returns the complete list of packages that a layer has
// if it exists.
func GETLayersPackages(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
// Find layer
layer, err := database.FindOneLayerByID(p.ByName("id"), []string{database.FieldLayerParent, database.FieldLayerPackages})
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
// Find layer's packages.
packagesNodes, err := layer.AllPackages()
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
packages := []*database.Package{}
if len(packagesNodes) > 0 {
packages, err = database.FindAllPackagesByNodes(packagesNodes, []string{database.FieldPackageOS, database.FieldPackageName, database.FieldPackageVersion})
if err != nil {
httputils.WriteHTTPError(w, 0, err)
return
}
}
httputils.WriteHTTP(w, http.StatusOK, struct{ Packages []*database.Package }{Packages: packages})
}
// detectAndInsertInstalledAndRemovedPackages finds the installed and removed
// package nodes and inserts the installed packages into the database.
func detectAndInsertInstalledAndRemovedPackages(detectedOS string, packageList []*database.Package, parent *database.Layer) (installedNodes, removedNodes []string, err error) {
// Get the parent layer's packages.
parentPackageNodes, err := parent.AllPackages()
if err != nil {
return nil, nil, err
}
parentPackages, err := database.FindAllPackagesByNodes(parentPackageNodes, []string{database.FieldPackageName, database.FieldPackageVersion})
if err != nil {
return nil, nil, err
}
// Map detected packages (name:version) string to packages.
packagesNVMapToPackage := make(map[string]*database.Package)
for _, p := range packageList {
packagesNVMapToPackage[p.Name+":"+p.Version.String()] = p
}
// Map parent's packages (name:version) string to nodes.
parentPackagesNVMapToNodes := make(map[string]string)
for _, p := range parentPackages {
parentPackagesNVMapToNodes[p.Name+":"+p.Version.String()] = p.Node
}
// Build a list of the parent layer's packages' node values.
var parentPackagesNV []string
for _, p := range parentPackages {
parentPackagesNV = append(parentPackagesNV, p.Name+":"+p.Version.String())
}
// Build a list of the layer packages' node values.
var layerPackagesNV []string
for _, p := range packageList {
layerPackagesNV = append(layerPackagesNV, p.Name+":"+p.Version.String())
}
// Calculate the installed and removed packages.
removedPackagesNV := utils.CompareStringLists(parentPackagesNV, layerPackagesNV)
installedPackagesNV := utils.CompareStringLists(layerPackagesNV, parentPackagesNV)
// Build a list of all the installed packages.
var installedPackages []*database.Package
for _, nv := range installedPackagesNV {
p, _ := packagesNVMapToPackage[nv]
p.OS = detectedOS
installedPackages = append(installedPackages, p)
}
// Insert that list into the database.
err = database.InsertPackages(installedPackages)
if err != nil {
return nil, nil, err
}
// Build the list of installed package nodes.
for _, p := range installedPackages {
if p.Node != "" {
installedNodes = append(installedNodes, p.Node)
}
}
// Build the list of removed package nodes.
for _, nv := range removedPackagesNV {
node, _ := parentPackagesNVMapToNodes[nv]
removedNodes = append(removedNodes, node)
}
return
}