Added dependencies, license and provides_includes fields in 'lib search' (#599)

* Added 'license' and 'provides_includes' fields in lib search

* Added 'dependencies' field in lib search

* Do not output empty field in 'lib search'

Fields 'license', 'provided includes' and 'dependencies' are printed
only if populated.

arduino/libraries/librariesindex/index.go

@@ -52,6 +52,8 @@ type Release struct {
 	Architectures    []string
 	Types            []string
 	Resource         *resources.DownloadResource
+	License          string
+	ProvidesIncludes []string
 
 	Library *Library `json:"-"`
 }

arduino/libraries/librariesindex/json.go

@@ -44,6 +44,8 @@ type indexRelease struct {
 	Size             int64              `json:"size"`
 	Checksum         string             `json:"checksum"`
 	Dependencies     []*indexDependency `json:"dependencies,omitempty"`
+	License          string             `json:"license"`
+	ProvidesIncludes []string           `json:"providesIncludes"`
 }
 
 type indexDependency struct {
@@ -109,6 +111,8 @@ func (indexLib *indexRelease) extractReleaseIn(library *Library) {
 		},
 		Library:          library,
 		Dependencies:     indexLib.extractDependencies(),
+		License:          indexLib.License,
+		ProvidesIncludes: indexLib.ProvidesIncludes,
 	}
 	library.Releases[indexLib.Version.String()] = release
 	if library.Latest == nil || library.Latest.Version.LessThan(release.Version) {

cli/lib/search.go

@@ -113,21 +113,41 @@ func (res result) String() string {
 
 	var out strings.Builder
 
-	for _, lsr := range results {
-		out.WriteString(fmt.Sprintf("Name: \"%s\"\n", lsr.Name))
+	for _, lib := range results {
+		out.WriteString(fmt.Sprintf("Name: \"%s\"\n", lib.Name))
 		if res.namesOnly {
 			continue
 		}
 
-		out.WriteString(fmt.Sprintf("  Author: %s\n", lsr.GetLatest().Author))
-		out.WriteString(fmt.Sprintf("  Maintainer: %s\n", lsr.GetLatest().Maintainer))
-		out.WriteString(fmt.Sprintf("  Sentence: %s\n", lsr.GetLatest().Sentence))
-		out.WriteString(fmt.Sprintf("  Paragraph: %s\n", lsr.GetLatest().Paragraph))
-		out.WriteString(fmt.Sprintf("  Website: %s\n", lsr.GetLatest().Website))
-		out.WriteString(fmt.Sprintf("  Category: %s\n", lsr.GetLatest().Category))
-		out.WriteString(fmt.Sprintf("  Architecture: %s\n", strings.Join(lsr.GetLatest().Architectures, ", ")))
-		out.WriteString(fmt.Sprintf("  Types: %s\n", strings.Join(lsr.GetLatest().Types, ", ")))
-		out.WriteString(fmt.Sprintf("  Versions: %s\n", strings.Replace(fmt.Sprint(versionsFromSearchedLibrary(lsr)), " ", ", ", -1)))
+		latest := lib.GetLatest()
+
+		deps := []string{}
+		for _, dep := range latest.GetDependencies() {
+			if dep.GetVersionConstraint() == "" {
+				deps = append(deps, dep.GetName())
+			} else {
+				deps = append(deps, dep.GetName()+" ("+dep.GetVersionConstraint()+")")
+			}
+		}
+
+		out.WriteString(fmt.Sprintf("  Author: %s\n", latest.Author))
+		out.WriteString(fmt.Sprintf("  Maintainer: %s\n", latest.Maintainer))
+		out.WriteString(fmt.Sprintf("  Sentence: %s\n", latest.Sentence))
+		out.WriteString(fmt.Sprintf("  Paragraph: %s\n", latest.Paragraph))
+		out.WriteString(fmt.Sprintf("  Website: %s\n", latest.Website))
+		if latest.License != "" {
+			out.WriteString(fmt.Sprintf("  License: %s\n", latest.License))
+		}
+		out.WriteString(fmt.Sprintf("  Category: %s\n", latest.Category))
+		out.WriteString(fmt.Sprintf("  Architecture: %s\n", strings.Join(latest.Architectures, ", ")))
+		out.WriteString(fmt.Sprintf("  Types: %s\n", strings.Join(latest.Types, ", ")))
+		out.WriteString(fmt.Sprintf("  Versions: %s\n", strings.Replace(fmt.Sprint(versionsFromSearchedLibrary(lib)), " ", ", ", -1)))
+		if len(latest.ProvidesIncludes) > 0 {
+			out.WriteString(fmt.Sprintf("  Provides includes: %s\n", strings.Join(latest.ProvidesIncludes, ", ")))
+		}
+		if len(latest.Dependencies) > 0 {
+			out.WriteString(fmt.Sprintf("  Dependencies: %s\n", strings.Join(deps, ", ")))
+		}
 	}
 
 	return fmt.Sprintf("%s", out.String())

commands/lib/search.go

@@ -23,6 +23,7 @@ import (
 	"github.com/arduino/arduino-cli/arduino/libraries/librariesindex"
 	"github.com/arduino/arduino-cli/commands"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	semver "go.bug.st/relaxed-semver"
 )
 
 // LibrarySearch FIXMEDOC
@@ -69,6 +70,9 @@ func GetLibraryParameters(rel *librariesindex.Release) *rpc.LibraryRelease {
 		Category:         rel.Category,
 		Architectures:    rel.Architectures,
 		Types:            rel.Types,
+		License:          rel.License,
+		ProvidesIncludes: rel.ProvidesIncludes,
+		Dependencies:     getLibraryDependenciesParameter(rel.GetDependencies()),
 		Resources: &rpc.DownloadResource{
 			Url:             rel.Resource.URL,
 			Archivefilename: rel.Resource.ArchiveFileName,
@@ -78,3 +82,14 @@ func GetLibraryParameters(rel *librariesindex.Release) *rpc.LibraryRelease {
 		},
 	}
 }
+
+func getLibraryDependenciesParameter(deps []semver.Dependency) []*rpc.LibraryDependency {
+	res := []*rpc.LibraryDependency{}
+	for _, dep := range deps {
+		res = append(res, &rpc.LibraryDependency{
+			Name:              dep.GetName(),
+			VersionConstraint: dep.GetConstraint().String(),
+		})
+	}
+	return res
+}

rpc/commands/lib.pb.go

@@ -753,6 +753,9 @@ type LibraryRelease struct {
 	Architectures        []string             `protobuf:"bytes,8,rep,name=architectures,proto3" json:"architectures,omitempty"`
 	Types                []string             `protobuf:"bytes,9,rep,name=types,proto3" json:"types,omitempty"`
 	Resources            *DownloadResource    `protobuf:"bytes,10,opt,name=resources,proto3" json:"resources,omitempty"`
+	License              string               `protobuf:"bytes,11,opt,name=license,proto3" json:"license,omitempty"`
+	ProvidesIncludes     []string             `protobuf:"bytes,12,rep,name=provides_includes,json=providesIncludes,proto3" json:"provides_includes,omitempty"`
+	Dependencies         []*LibraryDependency `protobuf:"bytes,13,rep,name=dependencies,proto3" json:"dependencies,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
 	XXX_unrecognized     []byte               `json:"-"`
 	XXX_sizecache        int32                `json:"-"`
@@ -853,6 +856,74 @@ func (m *LibraryRelease) GetResources() *DownloadResource {
 	return nil
 }
 
+func (m *LibraryRelease) GetLicense() string {
+	if m != nil {
+		return m.License
+	}
+	return ""
+}
+
+func (m *LibraryRelease) GetProvidesIncludes() []string {
+	if m != nil {
+		return m.ProvidesIncludes
+	}
+	return nil
+}
+
+func (m *LibraryRelease) GetDependencies() []*LibraryDependency {
+	if m != nil {
+		return m.Dependencies
+	}
+	return nil
+}
+
+type LibraryDependency struct {
+	Name                 string   `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	VersionConstraint    string   `protobuf:"bytes,2,opt,name=version_constraint,json=versionConstraint,proto3" json:"version_constraint,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *LibraryDependency) Reset()         { *m = LibraryDependency{} }
+func (m *LibraryDependency) String() string { return proto.CompactTextString(m) }
+func (*LibraryDependency) ProtoMessage()    {}
+func (*LibraryDependency) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9feed0d29806df6c, []int{15}
+}
+
+func (m *LibraryDependency) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_LibraryDependency.Unmarshal(m, b)
+}
+func (m *LibraryDependency) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_LibraryDependency.Marshal(b, m, deterministic)
+}
+func (m *LibraryDependency) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_LibraryDependency.Merge(m, src)
+}
+func (m *LibraryDependency) XXX_Size() int {
+	return xxx_messageInfo_LibraryDependency.Size(m)
+}
+func (m *LibraryDependency) XXX_DiscardUnknown() {
+	xxx_messageInfo_LibraryDependency.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_LibraryDependency proto.InternalMessageInfo
+
+func (m *LibraryDependency) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func (m *LibraryDependency) GetVersionConstraint() string {
+	if m != nil {
+		return m.VersionConstraint
+	}
+	return ""
+}
+
 type DownloadResource struct {
 	Url                  string   `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"`
 	Archivefilename      string   `protobuf:"bytes,2,opt,name=archivefilename,proto3" json:"archivefilename,omitempty"`
@@ -868,7 +939,7 @@ func (m *DownloadResource) Reset()         { *m = DownloadResource{} }
 func (m *DownloadResource) String() string { return proto.CompactTextString(m) }
 func (*DownloadResource) ProtoMessage()    {}
 func (*DownloadResource) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9feed0d29806df6c, []int{15}
+	return fileDescriptor_9feed0d29806df6c, []int{16}
 }
 
 func (m *DownloadResource) XXX_Unmarshal(b []byte) error {
@@ -937,7 +1008,7 @@ func (m *LibraryListReq) Reset()         { *m = LibraryListReq{} }
 func (m *LibraryListReq) String() string { return proto.CompactTextString(m) }
 func (*LibraryListReq) ProtoMessage()    {}
 func (*LibraryListReq) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9feed0d29806df6c, []int{16}
+	return fileDescriptor_9feed0d29806df6c, []int{17}
 }
 
 func (m *LibraryListReq) XXX_Unmarshal(b []byte) error {
@@ -990,7 +1061,7 @@ func (m *LibraryListResp) Reset()         { *m = LibraryListResp{} }
 func (m *LibraryListResp) String() string { return proto.CompactTextString(m) }
 func (*LibraryListResp) ProtoMessage()    {}
 func (*LibraryListResp) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9feed0d29806df6c, []int{17}
+	return fileDescriptor_9feed0d29806df6c, []int{18}
 }
 
 func (m *LibraryListResp) XXX_Unmarshal(b []byte) error {
@@ -1030,7 +1101,7 @@ func (m *InstalledLibrary) Reset()         { *m = InstalledLibrary{} }
 func (m *InstalledLibrary) String() string { return proto.CompactTextString(m) }
 func (*InstalledLibrary) ProtoMessage()    {}
 func (*InstalledLibrary) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9feed0d29806df6c, []int{18}
+	return fileDescriptor_9feed0d29806df6c, []int{19}
 }
 
 func (m *InstalledLibrary) XXX_Unmarshal(b []byte) error {
@@ -1098,7 +1169,7 @@ func (m *Library) Reset()         { *m = Library{} }
 func (m *Library) String() string { return proto.CompactTextString(m) }
 func (*Library) ProtoMessage()    {}
 func (*Library) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9feed0d29806df6c, []int{19}
+	return fileDescriptor_9feed0d29806df6c, []int{20}
 }
 
 func (m *Library) XXX_Unmarshal(b []byte) error {
@@ -1299,6 +1370,7 @@ func init() {
 	proto.RegisterType((*SearchedLibrary)(nil), "cc.arduino.cli.commands.SearchedLibrary")
 	proto.RegisterMapType((map[string]*LibraryRelease)(nil), "cc.arduino.cli.commands.SearchedLibrary.ReleasesEntry")
 	proto.RegisterType((*LibraryRelease)(nil), "cc.arduino.cli.commands.LibraryRelease")
+	proto.RegisterType((*LibraryDependency)(nil), "cc.arduino.cli.commands.LibraryDependency")
 	proto.RegisterType((*DownloadResource)(nil), "cc.arduino.cli.commands.DownloadResource")
 	proto.RegisterType((*LibraryListReq)(nil), "cc.arduino.cli.commands.LibraryListReq")
 	proto.RegisterType((*LibraryListResp)(nil), "cc.arduino.cli.commands.LibraryListResp")
@@ -1310,80 +1382,84 @@ func init() {
 func init() { proto.RegisterFile("commands/lib.proto", fileDescriptor_9feed0d29806df6c) }
 
 var fileDescriptor_9feed0d29806df6c = []byte{
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 }

rpc/commands/lib.proto

@@ -103,6 +103,14 @@ message LibraryRelease {
     repeated string architectures = 8;
     repeated string types = 9;
     DownloadResource resources = 10;
+    string license = 11;
+    repeated string provides_includes = 12;
+    repeated LibraryDependency dependencies = 13;
+}
+
+message LibraryDependency {
+    string name = 1;
+    string version_constraint = 2;
 }
 
 message DownloadResource {