mirror of
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Instead of merely storing files into disk use a real cache. This also makes possible finally to reference artifacts in the cache with the package checksum, which solves the cache hit checksum failures we had previously.
105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
// Copyright © 2020-2021 Ettore Di Giacinto <mudler@gentoo.org>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, see <http://www.gnu.org/licenses/>.
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package client
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import (
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"os"
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"path"
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"path/filepath"
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"github.com/mudler/luet/pkg/api/core/types/artifact"
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"github.com/mudler/luet/pkg/config"
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fileHelper "github.com/mudler/luet/pkg/helpers/file"
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. "github.com/mudler/luet/pkg/logger"
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"github.com/pkg/errors"
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)
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type LocalClient struct {
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RepoData RepoData
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Cache *artifact.ArtifactCache
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}
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func NewLocalClient(r RepoData) *LocalClient {
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return &LocalClient{
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Cache: artifact.NewCache(config.LuetCfg.GetSystem().GetSystemPkgsCacheDirPath()),
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RepoData: r,
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}
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}
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func (c *LocalClient) DownloadArtifact(a *artifact.PackageArtifact) (*artifact.PackageArtifact, error) {
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var err error
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artifactName := path.Base(a.Path)
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newart := a.ShallowCopy()
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fileName, err := c.Cache.Get(a)
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// Check if file is already in cache
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if err == nil {
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newart.Path = fileName
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Debug("Use artifact", artifactName, "from cache.")
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} else {
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d, err := c.DownloadFile(artifactName)
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if err != nil {
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return nil, errors.Wrapf(err, "failed downloading %s", artifactName)
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}
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newart.Path = d
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c.Cache.Put(newart)
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}
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return newart, nil
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}
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func (c *LocalClient) DownloadFile(name string) (string, error) {
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var err error
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var file *os.File = nil
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rootfs := ""
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if !config.LuetCfg.ConfigFromHost {
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rootfs, err = config.LuetCfg.GetSystem().GetRootFsAbs()
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if err != nil {
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return "", err
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}
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}
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ok := false
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for _, uri := range c.RepoData.Urls {
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uri = filepath.Join(rootfs, uri)
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Info("Downloading file", name, "from", uri)
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file, err = config.LuetCfg.GetSystem().TempFile("localclient")
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if err != nil {
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continue
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}
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//defer os.Remove(file.Name())
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err = fileHelper.CopyFile(filepath.Join(uri, name), file.Name())
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if err != nil {
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continue
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}
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ok = true
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break
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}
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if ok {
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return file.Name(), nil
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}
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return "", err
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}
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