Annotate artifact metadata after compiling

pkg/compiler/artifact.go

@@ -18,6 +18,7 @@ package compiler
 import (
 	"io/ioutil"
 	"os"
+	"path"
 	"path/filepath"
 	"regexp"
 	"strconv"
@@ -26,23 +27,64 @@ import (
 
 	. "github.com/mudler/luet/pkg/logger"
 	"github.com/mudler/luet/pkg/solver"
+	yaml "gopkg.in/yaml.v2"
 
 	"github.com/mudler/luet/pkg/helpers"
 	"github.com/pkg/errors"
 )
 
-type PackageArtifact struct {
-	Path         string
-	Dependencies []Artifact
-	CompileSpec  CompilationSpec
+type ArtifactIndex []Artifact
 
-	SourceAssertion solver.PackagesAssertions
+func (i ArtifactIndex) CleanPath() ArtifactIndex {
+	var newIndex []Artifact
+	copy(newIndex, i)
+	for _, n := range newIndex {
+		n.SetPath(path.Base(n.GetPath()))
+	}
+	return newIndex
+	//Update if exists, otherwise just create
+}
+
+//  When compiling, we write also a fingerprint.metadata.yaml file with PackageArtifact. In this way we can have another command to create the repository
+// which will consist in just of an repository.yaml which is just the repository structure with the list of package artifact.
+// In this way a generic client can fetch the packages and, after unpacking the tree, performing queries to install packages.
+type PackageArtifact struct {
+	Path         string          `json:"path"`
+	Dependencies []Artifact      `json:"dependencies"`
+	CompileSpec  CompilationSpec `json:"compilationspec"`
+
+	SourceAssertion solver.PackagesAssertions `json:"-"`
 }
 
 func NewPackageArtifact(path string) Artifact {
 	return &PackageArtifact{Path: path, Dependencies: []Artifact{}}
 }
 
+func NewPackageArtifactFromYaml(data []byte) (Artifact, error) {
+	var p PackageArtifact
+	err := yaml.Unmarshal(data, &p)
+	if err != nil {
+		return &p, err
+	}
+	return &p, err
+}
+
+func (a *PackageArtifact) WriteYaml(dst string) error {
+	a.CompileSpec.GetPackage().SetPath("")
+	for _, ass := range a.CompileSpec.GetSourceAssertion() {
+		ass.Package.SetPath("")
+	}
+	data, err := yaml.Marshal(a)
+	if err != nil {
+		return errors.Wrap(err, "While marshalling for PackageArtifact YAML")
+	}
+	err = ioutil.WriteFile(filepath.Join(dst, a.GetCompileSpec().GetPackage().GetFingerPrint()+".metadata.yaml"), data, os.ModePerm)
+	if err != nil {
+		return errors.Wrap(err, "While writing PackageArtifact YAML")
+	}
+	return nil
+}
+
 func (a *PackageArtifact) GetSourceAssertion() solver.PackagesAssertions {
 	return a.SourceAssertion
 }

pkg/compiler/compiler.go

@@ -276,6 +276,10 @@ func (cs *LuetCompiler) compileWithImage(image, buildertaggedImage, packageImage
 		artifact.SetCompileSpec(p)
 	}
 
+	err = artifact.WriteYaml(p.GetOutputPath())
+	if err != nil {
+		return artifact, err
+	}
 	return artifact, nil
 }
 
@@ -332,6 +336,10 @@ func (cs *LuetCompiler) packageFromImage(p CompilationSpec, tag string, keepPerm
 	Info(pkgTag, "   :white_check_mark: Done")
 	artifact := NewPackageArtifact(p.Rel(p.GetPackage().GetFingerPrint() + ".package.tar"))
 	artifact.SetCompileSpec(p)
+	err = artifact.WriteYaml(p.GetOutputPath())
+	if err != nil {
+		return artifact, err
+	}
 	return artifact, nil
 }
 

pkg/compiler/compiler_test.go

@@ -292,6 +292,8 @@ var _ = Describe("Compiler", func() {
 
 			Expect(helpers.Exists(spec.Rel("usr/bin/pkgs-checker"))).To(BeTrue())
 			Expect(helpers.Exists(spec.Rel("base-layer-0.1.package.tar"))).To(BeTrue())
+			Expect(helpers.Exists(spec.Rel("base-layer-0.1.metadata.yaml"))).To(BeTrue())
+			Expect(helpers.Exists(spec.Rel("extra-layer-0.1.metadata.yaml"))).To(BeTrue())
 			Expect(helpers.Exists(spec.Rel("extra-layer-0.1.package.tar"))).To(BeTrue())
 		})
 

pkg/compiler/interface.go

@@ -62,6 +62,7 @@ type Artifact interface {
 
 	SetCompileSpec(as CompilationSpec)
 	GetCompileSpec() CompilationSpec
+	WriteYaml(dst string) error
 }
 
 type ArtifactNode struct {

pkg/tree/builder.go

@@ -25,4 +25,6 @@ type Builder interface {
 	Load(string) error // A tree might be loaded from a db (e.g. bolt) and written to folder
 	Tree() pkg.Tree    // generates world
 	WithTree(pkg.Tree)
+
+	GetSourcePath() string
 }

pkg/tree/compiler_recipe.go

@@ -48,7 +48,7 @@ func (r *CompilerRecipe) Load(path string) error {
 	if r.Tree() == nil {
 		r.PackageTree = NewDefaultTree()
 	}
-
+	r.SourcePath = path
 	//tmpfile, err := ioutil.TempFile("", "luet")
 	//if err != nil {
 	//	return err
@@ -108,3 +108,4 @@ func (r *CompilerRecipe) Load(path string) error {
 
 func (r *CompilerRecipe) Tree() pkg.Tree        { return r.PackageTree }
 func (r *CompilerRecipe) WithTree(t pkg.Tree)   { r.PackageTree = t }
+func (r *CompilerRecipe) GetSourcePath() string { return r.SourcePath }

pkg/tree/recipes.go

@@ -38,6 +38,7 @@ func NewGeneralRecipe(db pkg.PackageDatabase) Builder { return &Recipe{Database:
 // Recipe is the "general" reciper for Trees
 type Recipe struct {
 	PackageTree pkg.Tree
+	SourcePath  string
 	Database    pkg.PackageDatabase
 }
 
@@ -75,6 +76,7 @@ func (r *Recipe) Load(path string) error {
 	// 	return err
 	// }
 	r.Tree().SetPackageSet(r.Database)
+	r.SourcePath = path
 
 	//r.Tree().SetPackageSet(pkg.NewBoltDatabase(tmpfile.Name()))
 	// TODO: Handle cleaning after? Cleanup implemented in GetPackageSet().Clean()
@@ -114,3 +116,4 @@ func (r *Recipe) Load(path string) error {
 
 func (r *Recipe) Tree() pkg.Tree        { return r.PackageTree }
 func (r *Recipe) WithTree(t pkg.Tree)   { r.PackageTree = t }
+func (r *Recipe) GetSourcePath() string { return r.SourcePath }