mirror of
https://github.com/clearlinux/rkt.git
synced 2026-06-16 02:05:48 +00:00
Jonathan Boulle
9685f37575
Inspired by a similar change in the Kubernetes project [1], this changes the copyright header to the more generic "The rkt Authors" rather than "CoreOS, Inc.", which is only sometimes correct. https://github.com/GoogleCloudPlatform/kubernetes/commit/6b3a6e6b983f967c88d14d26542ec6e30c49ebd3
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// Copyright 2014 The rkt 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 store implements a content-addressable-store on disk.
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// It leverages the `diskv` package to store items in a simple
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// key-value blob store: https://github.com/peterbourgon/diskv
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package store
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import "database/sql"
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func NewRemote(aciurl, sigurl string) *Remote {
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r := &Remote{
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ACIURL: aciurl,
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SigURL: sigurl,
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}
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return r
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}
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type Remote struct {
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ACIURL string
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SigURL string
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ETag string
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// The key in the blob store under which the ACI has been saved.
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BlobKey string
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}
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// GetRemote tries to retrieve a remote with the given aciURL. found will be
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// false if remote doesn't exist.
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func GetRemote(tx *sql.Tx, aciURL string) (remote *Remote, found bool, err error) {
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remote = &Remote{}
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rows, err := tx.Query("SELECT sigurl, etag, blobkey FROM remote WHERE aciurl == $1", aciURL)
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if err != nil {
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return nil, false, err
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}
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for rows.Next() {
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found = true
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if err := rows.Scan(&remote.SigURL, &remote.ETag, &remote.BlobKey); err != nil {
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return nil, false, err
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}
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}
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if err := rows.Err(); err != nil {
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return nil, false, err
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}
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return remote, found, err
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}
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// WriteRemote adds or updates the provided Remote.
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func WriteRemote(tx *sql.Tx, remote *Remote) error {
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// ql doesn't have an INSERT OR UPDATE function so
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// it's faster to remove and reinsert the row
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_, err := tx.Exec("DELETE FROM remote WHERE aciurl == $1", remote.ACIURL)
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if err != nil {
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return err
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}
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_, err = tx.Exec("INSERT INTO remote VALUES ($1, $2, $3, $4)", remote.ACIURL, remote.SigURL, remote.ETag, remote.BlobKey)
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if err != nil {
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return err
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}
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return nil
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}
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// RemoveRemote removes the remote with the given blobKey.
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func RemoveRemote(tx *sql.Tx, blobKey string) error {
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_, err := tx.Exec("DELETE FROM remote WHERE blobkey == $1", blobKey)
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if err != nil {
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return err
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}
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return nil
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}
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