pkg

package
v0.29.4-geaaru Latest Latest
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 Go to latest Published: Oct 9, 2022 License: GPL-3.0 Imports: 26 Imported by: 3

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Index

Constants

View Source 
const (
	PackageMetaSuffix     = "metadata.yaml"
	PackageCollectionFile = "collection.yaml"
	PackageDefinitionFile = "definition.yaml"
)

Variables

View Source 
var DBInMemoryInstance = &InMemoryDatabase{
	Mutex:             &sync.Mutex{},
	FileDatabase:      map[string][]string{},
	FinalizerDatabase: map[string]*PackageFinalizer{},
	Database:          map[string]string{},
	CacheNoVersion:    map[string]map[string]interface{}{},
	ProvidesDatabase:  map[string]map[string]Package{},
	RevDepsDatabase:   map[string]map[string]Package{},
	cached:            map[string]interface{}{},
}

Functions

func GetRawPackages 

func GetRawPackages(yml []byte) (rawPackages, error)

Types

type AnnotationKey 

type AnnotationKey string
const (
	ConfigProtectAnnnotation AnnotationKey = "config_protect"
	SubsetsAnnotation        AnnotationKey = "subsets"
)

type BoltDatabase 

type BoltDatabase struct {
	sync.Mutex
	Path             string
	ProvidesDatabase map[string]map[string]Package

	DB *storm.DB
}

func (*BoltDatabase) Clean 

func (db *BoltDatabase) Clean() error

func (*BoltDatabase) Clone 

func (db *BoltDatabase) Clone(to PackageDatabase) error

func (*BoltDatabase) Close 

func (db *BoltDatabase) Close() error

func (*BoltDatabase) Copy 

func (db *BoltDatabase) Copy() (PackageDatabase, error)

func (*BoltDatabase) Create 

func (db *BoltDatabase) Create(id string, v []byte) (string, error)

func (*BoltDatabase) CreatePackage 

func (db *BoltDatabase) CreatePackage(p Package) (string, error)

Encode encodes the package to string. It returns an ID which can be used to retrieve the package later on.

func (*BoltDatabase) FindPackage 

func (db *BoltDatabase) FindPackage(tofind Package) (Package, error)

func (*BoltDatabase) FindPackageByFile 

func (db *BoltDatabase) FindPackageByFile(pattern string) (Packages, error)

func (*BoltDatabase) FindPackageCandidate 

func (db *BoltDatabase) FindPackageCandidate(p Package) (Package, error)

func (*BoltDatabase) FindPackageLabel 

func (db *BoltDatabase) FindPackageLabel(labelKey string) (Packages, error)

func (*BoltDatabase) FindPackageLabelMatch 

func (db *BoltDatabase) FindPackageLabelMatch(pattern string) (Packages, error)

func (*BoltDatabase) FindPackageMatch 

func (db *BoltDatabase) FindPackageMatch(pattern string) (Packages, error)

func (*BoltDatabase) FindPackageVersions 

func (db *BoltDatabase) FindPackageVersions(p Package) (Packages, error)

FindPackageVersions return the list of the packages beloging to cat/name

func (*BoltDatabase) FindPackages 

func (db *BoltDatabase) FindPackages(p Package) (Packages, error)

FindPackages return the list of the packages beloging to cat/name (any versions in requested range) FIXME: Optimize, see inmemorydb

func (*BoltDatabase) Get 

func (db *BoltDatabase) Get(s string) (string, error)

func (*BoltDatabase) GetAllPackages 

func (db *BoltDatabase) GetAllPackages(packages chan Package) error

func (*BoltDatabase) GetPackage 

func (db *BoltDatabase) GetPackage(ID string) (Package, error)

func (*BoltDatabase) GetPackageFiles 

func (db *BoltDatabase) GetPackageFiles(p Package) ([]string, error)

func (*BoltDatabase) GetPackageFinalizer 

func (db *BoltDatabase) GetPackageFinalizer(p Package) (*PackageFinalizer, error)

func (*BoltDatabase) GetPackages 

func (db *BoltDatabase) GetPackages() []string

func (*BoltDatabase) GetRevdeps 

func (db *BoltDatabase) GetRevdeps(p Package) (Packages, error)

GetRevdeps uses a new inmemory db to calcuate revdeps TODO: Have a memory instance for boltdb, so we don't compute each time we get called as this is REALLY expensive. But we don't perform usually those operations in a file db.

func (*BoltDatabase) RebuildIndexes 

func (db *BoltDatabase) RebuildIndexes() error

func (*BoltDatabase) RemovePackage 

func (db *BoltDatabase) RemovePackage(p Package) error

func (*BoltDatabase) RemovePackageFiles 

func (db *BoltDatabase) RemovePackageFiles(p Package) error

func (*BoltDatabase) RemovePackageFinalizer 

func (db *BoltDatabase) RemovePackageFinalizer(p Package) error

func (*BoltDatabase) Retrieve 

func (db *BoltDatabase) Retrieve(ID string) ([]byte, error)

func (*BoltDatabase) Set 

func (db *BoltDatabase) Set(k, v string) error

func (*BoltDatabase) SetPackageFiles 

func (db *BoltDatabase) SetPackageFiles(p *PackageFile) error

func (*BoltDatabase) SetPackageFinalizer 

func (db *BoltDatabase) SetPackageFinalizer(p *PackageFinalizer) error

func (*BoltDatabase) UpdatePackage 

func (db *BoltDatabase) UpdatePackage(p Package) error

func (*BoltDatabase) World 

func (db *BoltDatabase) World() Packages

type Collection 

type Collection struct {
	Packages []DefaultPackage `json:"packages"`
}

type DefaultPackage 

type DefaultPackage struct {
	ID               int               `storm:"id,increment" json:"id"` // primary key with auto increment
	Name             string            `json:"name"`                    // Affects YAML field names too.
	Version          string            `json:"version"`                 // Affects YAML field names too.
	Category         string            `json:"category"`                // Affects YAML field names too.
	UseFlags         []string          `json:"use_flags,omitempty"`     // Affects YAML field names too.
	State            State             `json:"state,omitempty"`
	PackageRequires  []*DefaultPackage `json:"requires"`           // Affects YAML field names too.
	PackageConflicts []*DefaultPackage `json:"conflicts"`          // Affects YAML field names too.
	Provides         []*DefaultPackage `json:"provides,omitempty"` // Affects YAML field names too.
	Hidden           bool              `json:"hidden,omitempty"`   // Affects YAML field names too.

	// Annotations are used for core features/options
	Annotations map[string]interface{} `json:"annotations,omitempty"` // Affects YAML field names too

	// Path is set only internally when tree is loaded from disk
	Path string `json:"path,omitempty"`

	Description    string   `json:"description,omitempty"`
	Uri            []string `json:"uri,omitempty"`
	License        string   `json:"license,omitempty"`
	BuildTimestamp string   `json:"buildtimestamp,omitempty"`

	Labels map[string]string `json:"labels,omitempty"` // Affects YAML field names too.

	TreeDir string `json:"treedir,omitempty"`

	Repository string `json:"repository,omitempty"`
}

DefaultPackage represent a standard package definition

func DefaultPackageFromYaml 

func DefaultPackageFromYaml(yml []byte) (DefaultPackage, error)

>> Unmarshallers DefaultPackageFromYaml decodes a package from yaml bytes

func DefaultPackagesFromYAML 

func DefaultPackagesFromYAML(yml []byte) ([]DefaultPackage, error)

func NewPackage 

func NewPackage(name, version string, requires []*DefaultPackage, conflicts []*DefaultPackage) *DefaultPackage

NewPackage returns a new package

func (*DefaultPackage) AddAnnotation 

func (p *DefaultPackage) AddAnnotation(k string, v interface{})

func (*DefaultPackage) AddLabel 

func (p *DefaultPackage) AddLabel(k, v string)

func (*DefaultPackage) AddURI 

func (p *DefaultPackage) AddURI(s string)

func (*DefaultPackage) AddUse 

func (p *DefaultPackage) AddUse(use string)

AddUse adds a use to a package

func (*DefaultPackage) AtomMatches 

func (p *DefaultPackage) AtomMatches(m Package) bool

func (*DefaultPackage) BuildFormula 

func (pack *DefaultPackage) BuildFormula(definitiondb PackageDatabase, db PackageDatabase) ([]bf.Formula, error)

func (*DefaultPackage) BumpBuildVersion 

func (p *DefaultPackage) BumpBuildVersion() error

func (*DefaultPackage) Clone 

func (p *DefaultPackage) Clone() Package

func (*DefaultPackage) Conflicts 

func (p *DefaultPackage) Conflicts(req []*DefaultPackage) Package

func (*DefaultPackage) Encode 

func (p *DefaultPackage) Encode(db PackageDatabase) (string, error)

Encode encodes the package to string. It returns an ID which can be used to retrieve the package later on.

func (*DefaultPackage) Expand 

func (p *DefaultPackage) Expand(definitiondb PackageDatabase) (Packages, error)

func (*DefaultPackage) Explain 

func (p *DefaultPackage) Explain()

func (*DefaultPackage) GetAnnotationByKey 

func (p *DefaultPackage) GetAnnotationByKey(k string) (ans interface{})

func (*DefaultPackage) GetAnnotations 

func (p *DefaultPackage) GetAnnotations() map[string]interface{}

func (*DefaultPackage) GetBuildTimestamp 

func (p *DefaultPackage) GetBuildTimestamp() string

GetBuildTimestamp returns the package build timestamp

func (*DefaultPackage) GetCategory 

func (p *DefaultPackage) GetCategory() string

func (*DefaultPackage) GetConflicts 

func (p *DefaultPackage) GetConflicts() []*DefaultPackage

func (*DefaultPackage) GetDescription 

func (p *DefaultPackage) GetDescription() string

func (*DefaultPackage) GetFingerPrint 

func (p *DefaultPackage) GetFingerPrint() string

GetFingerPrint returns a UUID of the package. FIXME: this needs to be unique, now just name is generalized

func (*DefaultPackage) GetLabels 

func (p *DefaultPackage) GetLabels() map[string]string

func (*DefaultPackage) GetLicense 

func (p *DefaultPackage) GetLicense() string

func (*DefaultPackage) GetMetadataFilePath 

func (d *DefaultPackage) GetMetadataFilePath() string

GetMetadataFilePath returns the canonical name of an artifact metadata file

func (*DefaultPackage) GetName 

func (p *DefaultPackage) GetName() string

func (*DefaultPackage) GetPackageName 

func (p *DefaultPackage) GetPackageName() string

func (*DefaultPackage) GetPath 

func (p *DefaultPackage) GetPath() string

GetPath returns the path where the definition file was found

func (*DefaultPackage) GetProvides 

func (p *DefaultPackage) GetProvides() []*DefaultPackage

func (*DefaultPackage) GetRepository 

func (p *DefaultPackage) GetRepository() string

func (*DefaultPackage) GetRequires 

func (p *DefaultPackage) GetRequires() []*DefaultPackage

func (*DefaultPackage) GetRuntimePackage 

func (p *DefaultPackage) GetRuntimePackage() (*DefaultPackage, error)

func (*DefaultPackage) GetTreeDir 

func (p *DefaultPackage) GetTreeDir() string

func (*DefaultPackage) GetURI 

func (p *DefaultPackage) GetURI() []string

func (*DefaultPackage) GetUses 

func (p *DefaultPackage) GetUses() []string

func (*DefaultPackage) GetVersion 

func (p *DefaultPackage) GetVersion() string

func (*DefaultPackage) HasAnnotation 

func (p *DefaultPackage) HasAnnotation(label string) bool

func (*DefaultPackage) HasLabel 

func (p *DefaultPackage) HasLabel(label string) bool

func (*DefaultPackage) HashFingerprint 

func (p *DefaultPackage) HashFingerprint(salt string) string

func (*DefaultPackage) HumanReadableString 

func (p *DefaultPackage) HumanReadableString() string

func (*DefaultPackage) ImageID 

func (p *DefaultPackage) ImageID() string

func (DefaultPackage) IsCollection 

func (p DefaultPackage) IsCollection() bool

func (*DefaultPackage) IsHidden 

func (p *DefaultPackage) IsHidden() bool

func (*DefaultPackage) IsSelector 

func (p *DefaultPackage) IsSelector() bool

func (*DefaultPackage) JSON 

func (t *DefaultPackage) JSON() ([]byte, error)

Major and minor gets escaped when marshalling in JSON, making compiler fails recognizing selectors for expansion

func (*DefaultPackage) LabelDeps 

func (p *DefaultPackage) LabelDeps(definitiondb PackageDatabase, labelKey string) Packages

func (*DefaultPackage) Mark 

func (p *DefaultPackage) Mark() Package

func (*DefaultPackage) MatchAnnotation 

func (p *DefaultPackage) MatchAnnotation(r *regexp.Regexp) bool

func (*DefaultPackage) MatchLabel 

func (p *DefaultPackage) MatchLabel(r *regexp.Regexp) bool

func (*DefaultPackage) Matches 

func (p *DefaultPackage) Matches(m Package) bool

func (*DefaultPackage) PackageName 

func (p *DefaultPackage) PackageName() string

func (*DefaultPackage) Rel 

func (p *DefaultPackage) Rel(s string) string

func (*DefaultPackage) Related 

func (p *DefaultPackage) Related(definitiondb PackageDatabase) Packages

func (*DefaultPackage) RemoveUse 

func (p *DefaultPackage) RemoveUse(use string)

RemoveUse removes a use to a package

func (*DefaultPackage) Requires 

func (p *DefaultPackage) Requires(req []*DefaultPackage) Package

func (*DefaultPackage) RequiresContains 

func (pack *DefaultPackage) RequiresContains(definitiondb PackageDatabase, s Package) (bool, error)

RequiresContains recursively scans into the database packages dependencies to find a match with the given package It is used by the solver during uninstall.

func (*DefaultPackage) Revdeps 

func (p *DefaultPackage) Revdeps(definitiondb PackageDatabase) Packages

func (*DefaultPackage) SelectorMatchVersion 

func (p *DefaultPackage) SelectorMatchVersion(ver string, v version.Versioner) (bool, error)

func (*DefaultPackage) SetBuildTimestamp 

func (p *DefaultPackage) SetBuildTimestamp(s string)

SetBuildTimestamp sets the package Build timestamp

func (*DefaultPackage) SetCategory 

func (p *DefaultPackage) SetCategory(s string)

func (*DefaultPackage) SetDescription 

func (p *DefaultPackage) SetDescription(s string)

func (*DefaultPackage) SetLicense 

func (p *DefaultPackage) SetLicense(s string)

func (*DefaultPackage) SetName 

func (p *DefaultPackage) SetName(s string)

func (*DefaultPackage) SetPath 

func (p *DefaultPackage) SetPath(s string)

func (*DefaultPackage) SetProvides 

func (p *DefaultPackage) SetProvides(req []*DefaultPackage) Package

func (*DefaultPackage) SetRepository 

func (p *DefaultPackage) SetRepository(r string)

func (*DefaultPackage) SetTreeDir 

func (p *DefaultPackage) SetTreeDir(s string)

func (*DefaultPackage) SetVersion 

func (p *DefaultPackage) SetVersion(v string)

func (*DefaultPackage) String 

func (p *DefaultPackage) String() string

func (*DefaultPackage) VersionMatchSelector 

func (p *DefaultPackage) VersionMatchSelector(selector string, v version.Versioner) (bool, error)

func (*DefaultPackage) Yaml 

func (p *DefaultPackage) Yaml() ([]byte, error)

type DefaultPackages 

type DefaultPackages []*DefaultPackage

func (DefaultPackages) Hash 

func (d DefaultPackages) Hash(salt string) string

type InMemoryDatabase 

type InMemoryDatabase struct {
	*sync.Mutex
	Database          map[string]string
	FileDatabase      map[string][]string
	FinalizerDatabase map[string]*PackageFinalizer
	CacheNoVersion    map[string]map[string]interface{}
	ProvidesDatabase  map[string]map[string]Package
	RevDepsDatabase   map[string]map[string]Package
	// contains filtered or unexported fields
}

func (*InMemoryDatabase) Clean 

func (db *InMemoryDatabase) Clean() error

func (*InMemoryDatabase) Clone 

func (db *InMemoryDatabase) Clone(to PackageDatabase) error

func (*InMemoryDatabase) Close 

func (db *InMemoryDatabase) Close() error

func (*InMemoryDatabase) Copy 

func (db *InMemoryDatabase) Copy() (PackageDatabase, error)

func (*InMemoryDatabase) Create 

func (db *InMemoryDatabase) Create(id string, v []byte) (string, error)

func (*InMemoryDatabase) CreatePackage 

func (db *InMemoryDatabase) CreatePackage(p Package) (string, error)

Encode encodes the package to string. It returns an ID which can be used to retrieve the package later on.

func (*InMemoryDatabase) FindPackage 

func (db *InMemoryDatabase) FindPackage(p Package) (Package, error)

func (*InMemoryDatabase) FindPackageByFile 

func (db *InMemoryDatabase) FindPackageByFile(pattern string) (Packages, error)

func (*InMemoryDatabase) FindPackageCandidate 

func (db *InMemoryDatabase) FindPackageCandidate(p Package) (Package, error)

func (*InMemoryDatabase) FindPackageLabel 

func (db *InMemoryDatabase) FindPackageLabel(labelKey string) (Packages, error)

func (*InMemoryDatabase) FindPackageLabelMatch 

func (db *InMemoryDatabase) FindPackageLabelMatch(pattern string) (Packages, error)

func (*InMemoryDatabase) FindPackageMatch 

func (db *InMemoryDatabase) FindPackageMatch(pattern string) (Packages, error)

func (*InMemoryDatabase) FindPackageVersions 

func (db *InMemoryDatabase) FindPackageVersions(p Package) (Packages, error)

FindPackages return the list of the packages beloging to cat/name

func (*InMemoryDatabase) FindPackages 

func (db *InMemoryDatabase) FindPackages(p Package) (Packages, error)

FindPackages return the list of the packages beloging to cat/name (any versions in requested range)

func (*InMemoryDatabase) Get 

func (db *InMemoryDatabase) Get(s string) (string, error)

func (*InMemoryDatabase) GetAllPackages 

func (db *InMemoryDatabase) GetAllPackages(packages chan Package) error

func (*InMemoryDatabase) GetPackage 

func (db *InMemoryDatabase) GetPackage(ID string) (Package, error)

func (*InMemoryDatabase) GetPackageFiles 

func (db *InMemoryDatabase) GetPackageFiles(p Package) ([]string, error)

func (*InMemoryDatabase) GetPackageFinalizer 

func (db *InMemoryDatabase) GetPackageFinalizer(p Package) (*PackageFinalizer, error)

func (*InMemoryDatabase) GetPackages 

func (db *InMemoryDatabase) GetPackages() []string

func (*InMemoryDatabase) GetRevdeps 

func (db *InMemoryDatabase) GetRevdeps(p Package) (Packages, error)

GetRevdeps returns the package reverse dependencies, matching also selectors in versions (>, <, >=, <=) TODO: Code should use db explictly

func (*InMemoryDatabase) RebuildIndexes 

func (db *InMemoryDatabase) RebuildIndexes() error

func (*InMemoryDatabase) RemovePackage 

func (db *InMemoryDatabase) RemovePackage(p Package) error

func (*InMemoryDatabase) RemovePackageFiles 

func (db *InMemoryDatabase) RemovePackageFiles(p Package) error

func (*InMemoryDatabase) RemovePackageFinalizer 

func (db *InMemoryDatabase) RemovePackageFinalizer(p Package) error

func (*InMemoryDatabase) Retrieve 

func (db *InMemoryDatabase) Retrieve(ID string) ([]byte, error)

func (*InMemoryDatabase) Set 

func (db *InMemoryDatabase) Set(k, v string) error

func (*InMemoryDatabase) SetPackageFiles 

func (db *InMemoryDatabase) SetPackageFiles(p *PackageFile) error

func (*InMemoryDatabase) SetPackageFinalizer 

func (db *InMemoryDatabase) SetPackageFinalizer(p *PackageFinalizer) error

func (*InMemoryDatabase) UpdatePackage 

func (db *InMemoryDatabase) UpdatePackage(p Package) error

func (*InMemoryDatabase) World 

func (db *InMemoryDatabase) World() Packages

type Package 

type Package interface {
	Encode(PackageDatabase) (string, error)
	Related(definitiondb PackageDatabase) Packages

	BuildFormula(PackageDatabase, PackageDatabase) ([]bf.Formula, error)

	GetFingerPrint() string
	GetPackageName() string
	ImageID() string
	Requires([]*DefaultPackage) Package
	Conflicts([]*DefaultPackage) Package
	Revdeps(PackageDatabase) Packages
	LabelDeps(PackageDatabase, string) Packages

	GetProvides() []*DefaultPackage
	SetProvides([]*DefaultPackage) Package

	GetRequires() []*DefaultPackage
	GetConflicts() []*DefaultPackage
	Expand(PackageDatabase) (Packages, error)
	SetCategory(string)

	GetName() string
	SetName(string)
	GetCategory() string
	PackageName() string

	GetVersion() string
	SetVersion(string)
	RequiresContains(PackageDatabase, Package) (bool, error)
	Matches(m Package) bool
	AtomMatches(m Package) bool
	BumpBuildVersion() error

	AddUse(use string)
	RemoveUse(use string)
	GetUses() []string

	Yaml() ([]byte, error)
	Explain()

	SetPath(string)
	GetPath() string
	Rel(string) string

	GetDescription() string
	SetDescription(string)

	AddURI(string)
	GetURI() []string

	SetLicense(string)
	GetLicense() string

	AddLabel(string, string)
	GetLabels() map[string]string
	HasLabel(string) bool
	MatchLabel(*regexp.Regexp) bool

	AddAnnotation(string, interface{})
	GetAnnotations() map[string]interface{}
	HasAnnotation(string) bool
	MatchAnnotation(*regexp.Regexp) bool
	GetAnnotationByKey(k string) interface{}

	IsHidden() bool
	IsSelector() bool
	VersionMatchSelector(string, version.Versioner) (bool, error)
	SelectorMatchVersion(string, version.Versioner) (bool, error)

	String() string
	HumanReadableString() string
	HashFingerprint(string) string

	SetBuildTimestamp(s string)
	GetBuildTimestamp() string

	Clone() Package

	GetMetadataFilePath() string
	SetTreeDir(s string)
	GetTreeDir() string

	Mark() Package

	JSON() ([]byte, error)

	GetRepository() string
	SetRepository(string)
}

Package is a package interface (TBD) FIXME: Currently some of the methods are returning DefaultPackages due to JSON serialization of the package

func DecodePackage 

func DecodePackage(ID string, db PackageDatabase) (Package, error)

func FromString 

func FromString(s string) Package

type PackageDatabase 

type PackageDatabase interface {
	PackageSet

	Get(s string) (string, error)
	Set(k, v string) error

	Create(string, []byte) (string, error)
	Retrieve(ID string) ([]byte, error)

	Close() error
}

Database is a merely simple in-memory db. FIXME: Use a proper structure or delegate to third-party

func NewBoltDatabase 

func NewBoltDatabase(path string) PackageDatabase

func NewInMemoryDatabase 

func NewInMemoryDatabase(singleton bool) PackageDatabase

type PackageFile 

type PackageFile struct {
	ID                 int    `storm:"id,increment"` // primary key with auto increment
	PackageFingerprint string `storm:"unique"`
	Files              []string
}

type PackageFinalizer 

type PackageFinalizer struct {
	ID                 int      `storm:"id,increment"` // primary key with auto increment
	PackageFingerprint string   `storm:"unique"`
	Shell              []string `json:"shell,omitempty" yaml:"shell,omitempty"`
	Install            []string `json:"install,omitempty" yaml:"install,omitempty"`
	Uninstall          []string `json:"uninstall,omitempty" yaml:"uninstall,omitempty"`
}

type PackageMap 

type PackageMap map[string]Package

func (PackageMap) String 

func (pm PackageMap) String() string

type PackageSet 

type PackageSet interface {
	Clone(PackageDatabase) error
	Copy() (PackageDatabase, error)

	GetRevdeps(p Package) (Packages, error)
	GetPackages() []string //Ids
	CreatePackage(pkg Package) (string, error)
	GetPackage(ID string) (Package, error)
	Clean() error
	FindPackage(Package) (Package, error)
	FindPackages(p Package) (Packages, error)
	UpdatePackage(p Package) error
	GetAllPackages(packages chan Package) error
	RemovePackage(Package) error

	GetPackageFiles(Package) ([]string, error)
	SetPackageFiles(*PackageFile) error
	RemovePackageFiles(Package) error
	FindPackageVersions(p Package) (Packages, error)
	World() Packages

	// Finalizers
	GetPackageFinalizer(Package) (*PackageFinalizer, error)
	SetPackageFinalizer(*PackageFinalizer) error
	RemovePackageFinalizer(Package) error

	FindPackageCandidate(p Package) (Package, error)
	FindPackageLabel(labelKey string) (Packages, error)
	FindPackageLabelMatch(pattern string) (Packages, error)
	FindPackageMatch(pattern string) (Packages, error)
	FindPackageByFile(pattern string) (Packages, error)

	RebuildIndexes() error
}

type Packages 

type Packages []Package

func (Packages) Best 

func (set Packages) Best(v version.Versioner) Package

Best returns the best version of the package (the most bigger) from a list Accepts a versioner interface to change the ordering policy. If null is supplied It defaults to version.WrappedVersioner which supports both semver and debian versioning

func (Packages) Find 

func (set Packages) Find(packageName string) (Package, error)

func (Packages) Unique 

func (set Packages) Unique() Packages

type State 

type State string

State represent the package state

type Tree 

type Tree interface {
	GetPackageSet() PackageDatabase
	Prelude() string // A tree might have a prelude to be able to consume a tree
	SetPackageSet(s PackageDatabase)
	World() (Packages, error)
	FindPackage(Package) (Package, error)
}

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