mirror of
https://github.com/go-gitea/gitea.git
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Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.
Basically the same [as golang did](2580d0e08d
).
221 lines
6.7 KiB
Go
221 lines
6.7 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package rubygems
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import (
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"archive/tar"
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"compress/gzip"
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"io"
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"regexp"
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"strings"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/validation"
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"gopkg.in/yaml.v3"
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)
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var (
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// ErrMissingMetadataFile indicates a missing metadata.gz file
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ErrMissingMetadataFile = util.NewInvalidArgumentErrorf("metadata.gz file is missing")
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// ErrInvalidName indicates an invalid id in the metadata.gz file
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ErrInvalidName = util.NewInvalidArgumentErrorf("package name is invalid")
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// ErrInvalidVersion indicates an invalid version in the metadata.gz file
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ErrInvalidVersion = util.NewInvalidArgumentErrorf("package version is invalid")
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)
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var versionMatcher = regexp.MustCompile(`\A[0-9]+(?:\.[0-9a-zA-Z]+)*(?:-[0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*)?\z`)
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// Package represents a RubyGems package
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type Package struct {
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Name string
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Version string
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Metadata *Metadata
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}
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// Metadata represents the metadata of a RubyGems package
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type Metadata struct {
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Platform string `json:"platform,omitempty"`
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Description string `json:"description,omitempty"`
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Summary string `json:"summary,omitempty"`
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Authors []string `json:"authors,omitempty"`
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Licenses []string `json:"licenses,omitempty"`
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RequiredRubyVersion []VersionRequirement `json:"required_ruby_version,omitempty"`
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RequiredRubygemsVersion []VersionRequirement `json:"required_rubygems_version,omitempty"`
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ProjectURL string `json:"project_url,omitempty"`
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RuntimeDependencies []Dependency `json:"runtime_dependencies,omitempty"`
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DevelopmentDependencies []Dependency `json:"development_dependencies,omitempty"`
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}
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// VersionRequirement represents a version restriction
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type VersionRequirement struct {
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Restriction string `json:"restriction"`
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Version string `json:"version"`
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}
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// Dependency represents a dependency of a RubyGems package
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type Dependency struct {
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Name string `json:"name"`
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Version []VersionRequirement `json:"version"`
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}
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type gemspec struct {
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Name string `yaml:"name"`
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Version struct {
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Version string `yaml:"version"`
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} `yaml:"version"`
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Platform string `yaml:"platform"`
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Authors []string `yaml:"authors"`
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Autorequire any `yaml:"autorequire"`
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Bindir string `yaml:"bindir"`
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CertChain []any `yaml:"cert_chain"`
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Date string `yaml:"date"`
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Dependencies []struct {
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Name string `yaml:"name"`
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Requirement requirement `yaml:"requirement"`
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Type string `yaml:"type"`
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Prerelease bool `yaml:"prerelease"`
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VersionRequirements requirement `yaml:"version_requirements"`
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} `yaml:"dependencies"`
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Description string `yaml:"description"`
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Executables []string `yaml:"executables"`
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Extensions []any `yaml:"extensions"`
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ExtraRdocFiles []string `yaml:"extra_rdoc_files"`
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Files []string `yaml:"files"`
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Homepage string `yaml:"homepage"`
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Licenses []string `yaml:"licenses"`
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Metadata struct {
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BugTrackerURI string `yaml:"bug_tracker_uri"`
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ChangelogURI string `yaml:"changelog_uri"`
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DocumentationURI string `yaml:"documentation_uri"`
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SourceCodeURI string `yaml:"source_code_uri"`
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} `yaml:"metadata"`
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PostInstallMessage any `yaml:"post_install_message"`
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RdocOptions []any `yaml:"rdoc_options"`
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RequirePaths []string `yaml:"require_paths"`
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RequiredRubyVersion requirement `yaml:"required_ruby_version"`
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RequiredRubygemsVersion requirement `yaml:"required_rubygems_version"`
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Requirements []any `yaml:"requirements"`
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RubygemsVersion string `yaml:"rubygems_version"`
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SigningKey any `yaml:"signing_key"`
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SpecificationVersion int `yaml:"specification_version"`
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Summary string `yaml:"summary"`
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TestFiles []any `yaml:"test_files"`
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}
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type requirement struct {
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Requirements [][]any `yaml:"requirements"`
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}
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// AsVersionRequirement converts into []VersionRequirement
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func (r requirement) AsVersionRequirement() []VersionRequirement {
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requirements := make([]VersionRequirement, 0, len(r.Requirements))
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for _, req := range r.Requirements {
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if len(req) != 2 {
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continue
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}
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restriction, ok := req[0].(string)
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if !ok {
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continue
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}
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vm, ok := req[1].(map[string]any)
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if !ok {
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continue
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}
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versionInt, ok := vm["version"]
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if !ok {
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continue
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}
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version, ok := versionInt.(string)
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if !ok || version == "0" {
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continue
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}
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requirements = append(requirements, VersionRequirement{
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Restriction: restriction,
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Version: version,
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})
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}
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return requirements
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}
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// ParsePackageMetaData parses the metadata of a Gem package file
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func ParsePackageMetaData(r io.Reader) (*Package, error) {
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archive := tar.NewReader(r)
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for {
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hdr, err := archive.Next()
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if err == io.EOF {
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break
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}
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if err != nil {
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return nil, err
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}
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if hdr.Name == "metadata.gz" {
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return parseMetadataFile(archive)
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}
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}
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return nil, ErrMissingMetadataFile
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}
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func parseMetadataFile(r io.Reader) (*Package, error) {
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zr, err := gzip.NewReader(r)
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if err != nil {
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return nil, err
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}
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defer zr.Close()
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var spec gemspec
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if err := yaml.NewDecoder(zr).Decode(&spec); err != nil {
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return nil, err
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}
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if len(spec.Name) == 0 || strings.Contains(spec.Name, "/") {
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return nil, ErrInvalidName
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}
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if !versionMatcher.MatchString(spec.Version.Version) {
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return nil, ErrInvalidVersion
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}
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if !validation.IsValidURL(spec.Homepage) {
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spec.Homepage = ""
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}
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if !validation.IsValidURL(spec.Metadata.SourceCodeURI) {
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spec.Metadata.SourceCodeURI = ""
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}
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m := &Metadata{
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Platform: spec.Platform,
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Description: spec.Description,
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Summary: spec.Summary,
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Authors: spec.Authors,
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Licenses: spec.Licenses,
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ProjectURL: spec.Homepage,
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RequiredRubyVersion: spec.RequiredRubyVersion.AsVersionRequirement(),
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RequiredRubygemsVersion: spec.RequiredRubygemsVersion.AsVersionRequirement(),
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DevelopmentDependencies: make([]Dependency, 0, 5),
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RuntimeDependencies: make([]Dependency, 0, 5),
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}
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for _, gemdep := range spec.Dependencies {
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dep := Dependency{
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Name: gemdep.Name,
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Version: gemdep.Requirement.AsVersionRequirement(),
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}
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if gemdep.Type == ":runtime" {
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m.RuntimeDependencies = append(m.RuntimeDependencies, dep)
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} else {
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m.DevelopmentDependencies = append(m.DevelopmentDependencies, dep)
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}
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}
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return &Package{
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Name: spec.Name,
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Version: spec.Version.Version,
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Metadata: m,
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}, nil
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}
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