srpmproc/internal/directives/add.go

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// Copyright (c) 2021 The Srpmproc Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package directives
import (
"errors"
"fmt"
"git.rockylinux.org/release-engineering/public/srpmproc/internal/data"
srpmprocpb "git.rockylinux.org/release-engineering/public/srpmproc/pb"
"github.com/go-git/go-git/v5"
"io/ioutil"
"os"
"path/filepath"
)
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// returns right if not empty, else left
func eitherString(left string, right string) string {
if right != "" {
return right
}
return left
}
func add(cfg *srpmprocpb.Cfg, pd *data.ProcessData, md *data.ModeData, patchTree *git.Worktree, pushTree *git.Worktree) error {
for _, add := range cfg.Add {
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var replacingBytes []byte
var filePath string
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switch addType := add.Source.(type) {
case *srpmprocpb.Add_File:
filePath = checkAddPrefix(eitherString(filepath.Base(addType.File), add.Name))
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fPatch, err := patchTree.Filesystem.OpenFile(addType.File, os.O_RDONLY, 0644)
if err != nil {
return errors.New(fmt.Sprintf("COULD_NOT_OPEN_FROM:%s", addType.File))
}
replacingBytes, err = ioutil.ReadAll(fPatch)
if err != nil {
return errors.New(fmt.Sprintf("COULD_NOT_READ_FROM:%s", addType.File))
}
break
case *srpmprocpb.Add_Lookaside:
filePath = checkAddPrefix(eitherString(filepath.Base(addType.Lookaside), add.Name))
replacingBytes = pd.BlobStorage.Read(addType.Lookaside)
hashFunction := data.CompareHash(replacingBytes, addType.Lookaside)
if hashFunction == nil {
return errors.New(fmt.Sprintf("LOOKASIDE_HASH_DOES_NOT_MATCH:%s", addType.Lookaside))
}
md.SourcesToIgnore = append(md.SourcesToIgnore, &data.IgnoredSource{
Name: filePath,
HashFunction: hashFunction,
})
break
}
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f, err := pushTree.Filesystem.OpenFile(filePath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
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return errors.New(fmt.Sprintf("COULD_NOT_OPEN_DESTINATION:%s", filePath))
}
_, err = f.Write(replacingBytes)
if err != nil {
return errors.New(fmt.Sprintf("COULD_NOT_WRITE_DESTIONATION:%s", filePath))
}
}
return nil
}