79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
package debanator
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import (
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"crypto/md5"
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"crypto/sha1"
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"crypto/sha256"
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"fmt"
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"io"
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"strings"
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"pault.ag/go/debian/control"
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"pault.ag/go/debian/deb"
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"pault.ag/go/debian/dependency"
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"pault.ag/go/debian/version"
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)
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// A group of debs of a package for different arches/version
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type LogicalPackage struct {
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Name string
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// arch:version:package
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Arches map[dependency.Arch]map[version.Version]control.BinaryIndex
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}
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func BinaryIndexFromDeb(r ReaderAtCloser, filePath string) (*control.BinaryIndex, error) {
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debFile, err := deb.Load(r, "fakepath")
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if err != nil {
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return nil, fmt.Errorf("read deb: %w", err)
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}
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md5sum := md5.New()
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sha1sum := sha1.New()
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sha256sum := sha256.New()
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hashWriter := io.MultiWriter(md5sum, sha1sum, sha256sum)
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size, err := io.Copy(hashWriter, r)
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if err != nil {
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return nil, fmt.Errorf("hash file: %w", err)
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}
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bi := control.BinaryIndex{
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Paragraph: control.Paragraph{
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Values: make(map[string]string),
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},
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Package: debFile.Control.Package,
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Source: debFile.Control.Source,
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Version: debFile.Control.Version,
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InstalledSize: debFile.Control.InstalledSize,
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Size: int(size),
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Maintainer: debFile.Control.Maintainer,
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Architecture: debFile.Control.Architecture,
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MultiArch: debFile.Control.MultiArch,
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Description: debFile.Control.Description,
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Homepage: debFile.Control.Homepage,
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Section: debFile.Control.Section,
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// FIXME: gross, make this more centrally managed somehow
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Filename: strings.TrimPrefix(filePath, "/"),
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Priority: debFile.Control.Priority,
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MD5sum: fmt.Sprintf("%x", md5sum.Sum(nil)),
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SHA1: fmt.Sprintf("%x", sha1sum.Sum(nil)),
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SHA256: fmt.Sprintf("%x", sha256sum.Sum(nil)),
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}
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if debFile.Control.Depends.String() != "" {
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bi.Paragraph.Set("Depends", debFile.Control.Depends.String())
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}
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if debFile.Control.Recommends.String() != "" {
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bi.Paragraph.Set("Recommends", debFile.Control.Recommends.String())
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}
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if debFile.Control.Suggests.String() != "" {
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bi.Paragraph.Set("Suggests", debFile.Control.Suggests.String())
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}
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if debFile.Control.Breaks.String() != "" {
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bi.Paragraph.Set("Breaks", debFile.Control.Breaks.String())
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}
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if debFile.Control.Replaces.String() != "" {
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bi.Paragraph.Set("Replaces", debFile.Control.Replaces.String())
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}
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if debFile.Control.BuiltUsing.String() != "" {
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bi.Paragraph.Set("BuiltUsing", debFile.Control.BuiltUsing.String())
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}
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return &bi, nil
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}
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