a8a91379d9
Test verifies that potential namespace is stored in database and it can be loaded back to structure. The commit also fixes few typos and bugs.
95 lines
2.6 KiB
Go
95 lines
2.6 KiB
Go
// Copyright 2017 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package apk implements a featurefmt.Lister for APK packages.
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package apk
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import (
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"bufio"
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"bytes"
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"github.com/deckarep/golang-set"
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log "github.com/sirupsen/logrus"
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"github.com/coreos/clair/database"
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"github.com/coreos/clair/ext/featurefmt"
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"github.com/coreos/clair/ext/versionfmt"
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"github.com/coreos/clair/ext/versionfmt/dpkg"
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"github.com/coreos/clair/pkg/tarutil"
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)
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func init() {
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featurefmt.RegisterLister("apk", "1.0", &lister{})
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}
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type lister struct{}
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func valid(pkg *database.Feature) bool {
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return pkg.Name != "" && pkg.Version != ""
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}
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func (l lister) ListFeatures(files tarutil.FilesMap) ([]database.LayerFeature, error) {
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file, exists := files["lib/apk/db/installed"]
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if !exists {
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return []database.LayerFeature{}, nil
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}
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// Iterate over each line in the "installed" file attempting to parse each
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// package into a feature that will be stored in a set to guarantee
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// uniqueness.
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packages := mapset.NewSet()
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pkg := database.Feature{VersionFormat: dpkg.ParserName}
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scanner := bufio.NewScanner(bytes.NewBuffer(file))
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for scanner.Scan() {
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line := scanner.Text()
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if len(line) < 2 {
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if valid(&pkg) {
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pkg.Type = database.BinaryPackage
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packages.Add(pkg)
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pkg = database.Feature{VersionFormat: dpkg.ParserName}
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}
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continue
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}
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// Parse the package name or version.
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// Alpine package doesn't have specific source package. The "origin"
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// package is sub package.
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switch line[:2] {
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case "P:":
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pkg.Name = line[2:]
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case "V:":
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version := string(line[2:])
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err := versionfmt.Valid(dpkg.ParserName, version)
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if err != nil {
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log.WithError(err).WithField("version", version).Warning("could not parse package version. skipping")
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continue
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} else {
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pkg.Version = version
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}
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}
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}
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// in case of no terminal line
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if valid(&pkg) {
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pkg.Type = database.BinaryPackage
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packages.Add(pkg)
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}
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return database.ConvertFeatureSetToLayerFeatures(packages), nil
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}
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func (l lister) RequiredFilenames() []string {
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return []string{"lib/apk/db/installed"}
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}
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