/
bundleinfo.go
168 lines (147 loc) · 4.22 KB
/
bundleinfo.go
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// Copyright 2018 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package swupd
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
// BundleHeader describes the meta information of a bundle
type BundleHeader struct {
Title string
Description string
Status string
Capabilities string
Maintainer string
}
// BundleInfo describes the JSON object to be read from the *-info files
type BundleInfo struct {
Name string
Filename string
Header BundleHeader
DirectIncludes []string
OptionalIncludes []string
DirectPackages map[string]bool
AllPackages map[string]bool
Files map[string]bool
}
// GetBundleInfo loads the BundleInfo member of m from the bundle-info file at
// path
func (m *Manifest) GetBundleInfo(stateDir, path string) error {
var err error
if _, err = os.Stat(path); os.IsNotExist(err) {
basePath := filepath.Dir(path)
err = m.getBundleInfoFromChroot(filepath.Join(filepath.Dir(path), m.Name))
if err != nil {
return err
}
var includes []string
includes, err = readIncludesFile(filepath.Join(basePath, "noship", m.Name+"-includes"))
if err != nil {
return err
}
m.BundleInfo.DirectIncludes = includes
// TODO: this part of the code seems to be a legacy thing. Keep
// an eye on this to make sure m.BundleInfo.OptionalIncludes don't
// need to be added here too
return nil
}
biBytes, err := ioutil.ReadFile(path)
if err != nil {
return err
}
err = json.Unmarshal(biBytes, &m.BundleInfo)
if err != nil {
return err
}
extraFilesPath := filepath.Join(stateDir, m.Name+"-extra-files")
if _, err = os.Stat(extraFilesPath); err == nil {
extraFilesBytes, err := ioutil.ReadFile(extraFilesPath)
if err != nil {
return err
}
for _, f := range strings.Split(string(extraFilesBytes), "\n") {
if len(f) == 0 {
continue
}
if !strings.HasPrefix(f, "/") {
return fmt.Errorf("invalid extra file %s in %s, must start with '/'", f, extraFilesPath)
}
m.BundleInfo.Files[f] = true
}
}
return nil
}
// getBundleInfoFromChroot loads the BundleInfo file list from a bundle chroot
func (m *Manifest) getBundleInfoFromChroot(rootPath string) error {
m.BundleInfo.Files = make(map[string]bool)
if _, err := os.Stat(rootPath); os.IsNotExist(err) {
return err
}
err := filepath.Walk(rootPath, func(path string, fi os.FileInfo, err error) error {
fname := strings.TrimPrefix(path, rootPath)
m.BundleInfo.Files[fname] = true
return nil
})
return err
}
func appendUniqueManifest(ms []*Manifest, man *Manifest) []*Manifest {
for _, m := range ms {
if m.Name == man.Name {
return ms
}
}
return append(ms, man)
}
// ReadIncludesFromBundleInfo sets the Header.Includes field for the given manifest.
func (m *Manifest) ReadIncludesFromBundleInfo(bundles []*Manifest) error {
includes := []*Manifest{}
optional := []*Manifest{}
// os-core is added as an include for every bundle
// handle it manually so we don't have to rely on the includes list having it
for _, b := range bundles {
if b.Name == "os-core" {
includes = append(includes, b)
}
}
for _, bn := range m.BundleInfo.DirectIncludes {
// just add this one blindly since it is processed later
if bn == IndexBundle {
includes = append(includes, &Manifest{Name: IndexBundle})
continue
}
if bn == "os-core" {
// already added this one
continue
}
for _, b := range bundles {
if bn == b.Name {
includes = appendUniqueManifest(includes, b)
}
}
}
for _, bn := range m.BundleInfo.OptionalIncludes {
for _, b := range bundles {
if bn == b.Name {
optional = appendUniqueManifest(optional, b)
}
}
}
m.Header.Includes = includes
m.Header.Optional = optional
return nil
}