luet/pkg/installer/client/local.go
2021-10-21 23:58:45 +02:00

114 lines
2.7 KiB
Go

// Copyright © 2019-2021 Ettore Di Giacinto <mudler@gentoo.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see <http://www.gnu.org/licenses/>.
package client
import (
"os"
"path"
"path/filepath"
"github.com/mudler/luet/pkg/api/core/types"
"github.com/mudler/luet/pkg/api/core/types/artifact"
fileHelper "github.com/mudler/luet/pkg/helpers/file"
"github.com/pkg/errors"
)
type LocalClient struct {
RepoData RepoData
Cache *artifact.ArtifactCache
context *types.Context
}
func NewLocalClient(r RepoData, ctx *types.Context) *LocalClient {
return &LocalClient{
Cache: artifact.NewCache(ctx.Config.GetSystem().GetSystemPkgsCacheDirPath()),
RepoData: r,
context: ctx,
}
}
func (c *LocalClient) DownloadArtifact(a *artifact.PackageArtifact) (*artifact.PackageArtifact, error) {
var err error
artifactName := path.Base(a.Path)
newart := a.ShallowCopy()
fileName, err := c.Cache.Get(a)
// Check if file is already in cache
if err == nil {
newart.Path = fileName
c.context.Debug("Use artifact", artifactName, "from cache.")
} else {
d, err := c.DownloadFile(artifactName)
if err != nil {
return nil, errors.Wrapf(err, "failed downloading %s", artifactName)
}
defer os.RemoveAll(d)
newart.Path = d
c.Cache.Put(newart)
fileName, err := c.Cache.Get(newart)
if err != nil {
return nil, errors.Wrapf(err, "failed getting file from cache %v", newart)
}
newart.Path = fileName
}
return newart, nil
}
func (c *LocalClient) DownloadFile(name string) (string, error) {
var err error
var file *os.File = nil
rootfs := ""
if !c.context.Config.ConfigFromHost {
rootfs, err = c.context.Config.GetSystem().GetRootFsAbs()
if err != nil {
return "", err
}
}
ok := false
for _, uri := range c.RepoData.Urls {
uri = filepath.Join(rootfs, uri)
c.context.Info("Copying file", name, "from", uri)
file, err = c.context.Config.GetSystem().TempFile("localclient")
if err != nil {
continue
}
//defer os.Remove(file.Name())
err = fileHelper.CopyFile(filepath.Join(uri, name), file.Name())
if err != nil {
continue
}
ok = true
break
}
if ok {
return file.Name(), nil
}
return "", err
}