mirror of https://github.com/helm/helm
KUOKA Yusuke
6 years ago
committed by
GitHub
commit
3d8f8b866c
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,336 @@
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/*
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Copyright The Helm Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package driver
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import (
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"fmt"
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"sort"
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"strings"
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"time"
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"github.com/jmoiron/sqlx"
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migrate "github.com/rubenv/sql-migrate"
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// Import pq for potgres dialect
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_ "github.com/lib/pq"
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rspb "k8s.io/helm/pkg/proto/hapi/release"
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storageerrors "k8s.io/helm/pkg/storage/errors"
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)
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var _ Driver = (*SQL)(nil)
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var labelMap = map[string]string{
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"MODIFIED_AT": "modified_at",
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"CREATED_AT": "created_at",
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"VERSION": "version",
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"STATUS": "status",
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"OWNER": "owner",
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"NAME": "name",
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}
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var supportedSQLDialects = map[string]struct{}{
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"postgres": {},
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}
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// SQLDriverName is the string name of this driver.
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const SQLDriverName = "SQL"
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// SQL is the sql storage driver implementation.
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type SQL struct {
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db *sqlx.DB
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Log func(string, ...interface{})
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}
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// Name returns the name of the driver.
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func (s *SQL) Name() string {
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return SQLDriverName
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}
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func (s *SQL) ensureDBSetup() error {
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// Populate the database with the relations we need if they don't exist yet
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migrations := &migrate.MemoryMigrationSource{
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Migrations: []*migrate.Migration{
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{
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Id: "init",
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Up: []string{
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`
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CREATE TABLE releases (
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key VARCHAR(67) PRIMARY KEY,
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body TEXT NOT NULL,
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name VARCHAR(64) NOT NULL,
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version INTEGER NOT NULL,
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status TEXT NOT NULL,
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owner TEXT NOT NULL,
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created_at INTEGER NOT NULL,
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modified_at INTEGER NOT NULL DEFAULT 0
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);
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CREATE INDEX ON releases (key);
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CREATE INDEX ON releases (version);
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CREATE INDEX ON releases (status);
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CREATE INDEX ON releases (owner);
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CREATE INDEX ON releases (created_at);
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CREATE INDEX ON releases (modified_at);
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`,
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},
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Down: []string{
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`
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DROP TABLE releases;
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`,
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},
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},
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},
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}
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_, err := migrate.Exec(s.db.DB, "postgres", migrations, migrate.Up)
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return err
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}
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// SQLReleaseWrapper describes how Helm releases are stored in an SQL database
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type SQLReleaseWrapper struct {
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// The primary key, made of {release-name}.{release-version}
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Key string `db:"key"`
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// The rspb.Release body, as a base64-encoded string
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Body string `db:"body"`
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// Release "labels" that can be used as filters in the storage.Query(labels map[string]string)
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// we implemented. Note that allowing Helm users to filter against new dimensions will require a
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// new migration to be added, and the Create and/or update functions to be updated accordingly.
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Name string `db:"name"`
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Version int `db:"version"`
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Status string `db:"status"`
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Owner string `db:"owner"`
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CreatedAt int `db:"created_at"`
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ModifiedAt int `db:"modified_at"`
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}
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// NewSQL initializes a new memory driver.
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func NewSQL(dialect, connectionString string, logger func(string, ...interface{})) (*SQL, error) {
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if _, ok := supportedSQLDialects[dialect]; !ok {
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return nil, fmt.Errorf("%s dialect isn't supported, only \"postgres\" is available for now", dialect)
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}
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db, err := sqlx.Connect(dialect, connectionString)
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if err != nil {
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return nil, err
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}
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driver := &SQL{
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db: db,
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Log: logger,
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}
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if err := driver.ensureDBSetup(); err != nil {
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return nil, err
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}
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return driver, nil
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}
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// Get returns the release named by key.
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func (s *SQL) Get(key string) (*rspb.Release, error) {
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var record SQLReleaseWrapper
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// Get will return an error if the result is empty
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err := s.db.Get(&record, "SELECT body FROM releases WHERE key = $1", key)
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if err != nil {
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s.Log("got SQL error when getting release %s: %v", key, err)
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return nil, storageerrors.ErrReleaseNotFound(key)
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}
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release, err := decodeRelease(record.Body)
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if err != nil {
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s.Log("get: failed to decode data %q: %v", key, err)
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return nil, err
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}
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return release, nil
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}
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// List returns the list of all releases such that filter(release) == true
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func (s *SQL) List(filter func(*rspb.Release) bool) ([]*rspb.Release, error) {
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var records = []SQLReleaseWrapper{}
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if err := s.db.Select(&records, "SELECT body FROM releases WHERE owner = 'TILLER'"); err != nil {
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s.Log("list: failed to list: %v", err)
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return nil, err
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}
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var releases []*rspb.Release
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for _, record := range records {
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release, err := decodeRelease(record.Body)
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if err != nil {
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s.Log("list: failed to decode release: %v: %v", record, err)
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continue
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}
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if filter(release) {
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releases = append(releases, release)
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}
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}
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return releases, nil
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}
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// Query returns the set of releases that match the provided set of labels.
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func (s *SQL) Query(labels map[string]string) ([]*rspb.Release, error) {
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var sqlFilterKeys []string
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sqlFilter := map[string]interface{}{}
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for key, val := range labels {
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// Build a slice of where filters e.g
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// labels = map[string]string{ "foo": "foo", "bar": "bar" }
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// []string{ "foo=?", "bar=?" }
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if dbField, ok := labelMap[key]; ok {
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sqlFilterKeys = append(sqlFilterKeys, strings.Join([]string{dbField, "=:", dbField}, ""))
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sqlFilter[dbField] = val
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} else {
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s.Log("unknown label %s", key)
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return nil, fmt.Errorf("unknow label %s", key)
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}
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}
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sort.Strings(sqlFilterKeys)
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// Build our query
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query := strings.Join([]string{
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"SELECT body FROM releases",
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"WHERE",
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strings.Join(sqlFilterKeys, " AND "),
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}, " ")
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rows, err := s.db.NamedQuery(query, sqlFilter)
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if err != nil {
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s.Log("failed to query with labels: %v", err)
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return nil, err
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}
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var releases []*rspb.Release
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for rows.Next() {
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var record SQLReleaseWrapper
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if err = rows.StructScan(&record); err != nil {
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s.Log("failed to scan record %q: %v", record, err)
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return nil, err
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}
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release, err := decodeRelease(record.Body)
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if err != nil {
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s.Log("failed to decode release: %v", err)
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continue
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}
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releases = append(releases, release)
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}
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if len(releases) == 0 {
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return nil, storageerrors.ErrReleaseNotFound(labels["NAME"])
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}
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return releases, nil
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}
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// Create creates a new release.
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func (s *SQL) Create(key string, rls *rspb.Release) error {
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body, err := encodeRelease(rls)
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if err != nil {
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s.Log("failed to encode release: %v", err)
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return err
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}
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transaction, err := s.db.Beginx()
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if err != nil {
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s.Log("failed to start SQL transaction: %v", err)
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return fmt.Errorf("error beginning transaction: %v", err)
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}
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if _, err := transaction.NamedExec("INSERT INTO releases (key, body, name, version, status, owner, created_at) VALUES (:key, :body, :name, :version, :status, :owner, :created_at)",
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&SQLReleaseWrapper{
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Key: key,
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Body: body,
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Name: rls.Name,
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Version: int(rls.Version),
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Status: rspb.Status_Code_name[int32(rls.Info.Status.Code)],
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Owner: "TILLER",
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CreatedAt: int(time.Now().Unix()),
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},
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); err != nil {
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defer transaction.Rollback()
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var record SQLReleaseWrapper
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if err := transaction.Get(&record, "SELECT key FROM releases WHERE key = ?", key); err == nil {
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s.Log("release %s already exists", key)
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return storageerrors.ErrReleaseExists(key)
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}
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s.Log("failed to store release %s in SQL database: %v", key, err)
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return err
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}
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defer transaction.Commit()
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return nil
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}
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// Update updates a release.
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func (s *SQL) Update(key string, rls *rspb.Release) error {
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body, err := encodeRelease(rls)
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if err != nil {
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s.Log("failed to encode release: %v", err)
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return err
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}
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if _, err := s.db.NamedExec("UPDATE releases SET body=:body, name=:name, version=:version, status=:status, owner=:owner, modified_at=:modified_at WHERE key=:key",
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&SQLReleaseWrapper{
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Key: key,
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Body: body,
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Name: rls.Name,
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Version: int(rls.Version),
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Status: rspb.Status_Code_name[int32(rls.Info.Status.Code)],
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Owner: "TILLER",
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ModifiedAt: int(time.Now().Unix()),
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},
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); err != nil {
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s.Log("failed to update release %s in SQL database: %v", key, err)
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return err
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}
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return nil
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}
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// Delete deletes a release or returns ErrReleaseNotFound.
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func (s *SQL) Delete(key string) (*rspb.Release, error) {
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transaction, err := s.db.Beginx()
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if err != nil {
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s.Log("failed to start SQL transaction: %v", err)
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return nil, fmt.Errorf("error beginning transaction: %v", err)
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}
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var record SQLReleaseWrapper
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err = transaction.Get(&record, "SELECT body FROM releases WHERE key = $1", key)
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if err != nil {
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s.Log("release %s not found: %v", key, err)
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return nil, storageerrors.ErrReleaseNotFound(key)
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}
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release, err := decodeRelease(record.Body)
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if err != nil {
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s.Log("failed to decode release %s: %v", key, err)
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transaction.Rollback()
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return nil, err
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}
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defer transaction.Commit()
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_, err = transaction.Exec("DELETE FROM releases WHERE key = $1", key)
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return release, err
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}
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@ -0,0 +1,346 @@
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/*
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Copyright The Helm Authors.
|
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|
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Licensed under the Apache License, Version 2.0 (the "License");
|
||||
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
|
||||
|
||||
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.
|
||||
*/
|
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package driver
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import (
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"fmt"
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"regexp"
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"testing"
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"time"
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sqlmock "github.com/DATA-DOG/go-sqlmock"
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rspb "k8s.io/helm/pkg/proto/hapi/release"
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)
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func TestSQLName(t *testing.T) {
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sqlDriver, _ := newTestFixtureSQL(t)
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if sqlDriver.Name() != SQLDriverName {
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t.Errorf("Expected name to be %q, got %q", SQLDriverName, sqlDriver.Name())
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}
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}
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func TestSQLGet(t *testing.T) {
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vers := int32(1)
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name := "smug-pigeon"
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namespace := "default"
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key := testKey(name, vers)
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rel := releaseStub(name, vers, namespace, rspb.Status_DEPLOYED)
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body, err := encodeRelease(rel)
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if err != nil {
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t.Fatal(err)
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}
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sqlDriver, mock := newTestFixtureSQL(t)
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mock.
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ExpectQuery("SELECT body FROM releases WHERE key = ?").
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WithArgs(key).
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WillReturnRows(
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mock.NewRows([]string{
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"body",
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}).AddRow(
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body,
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),
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).RowsWillBeClosed()
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got, err := sqlDriver.Get(key)
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if err != nil {
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t.Fatalf("Failed to get release: %v", err)
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}
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if !shallowReleaseEqual(rel, got) {
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t.Errorf("Expected release {%q}, got {%q}", rel, got)
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}
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if err := mock.ExpectationsWereMet(); err != nil {
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t.Errorf("sql expectations weren't met: %v", err)
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}
|
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}
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func TestSQLList(t *testing.T) {
|
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body1, _ := encodeRelease(releaseStub("key-1", 1, "default", rspb.Status_DELETED))
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body2, _ := encodeRelease(releaseStub("key-2", 1, "default", rspb.Status_DELETED))
|
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body3, _ := encodeRelease(releaseStub("key-3", 1, "default", rspb.Status_DEPLOYED))
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body4, _ := encodeRelease(releaseStub("key-4", 1, "default", rspb.Status_DEPLOYED))
|
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body5, _ := encodeRelease(releaseStub("key-5", 1, "default", rspb.Status_SUPERSEDED))
|
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body6, _ := encodeRelease(releaseStub("key-6", 1, "default", rspb.Status_SUPERSEDED))
|
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|
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sqlDriver, mock := newTestFixtureSQL(t)
|
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|
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for i := 0; i < 3; i++ {
|
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mock.
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ExpectQuery("SELECT body FROM releases WHERE owner = 'TILLER'").
|
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WillReturnRows(
|
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mock.NewRows([]string{
|
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"body",
|
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}).
|
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AddRow(body1).
|
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AddRow(body2).
|
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AddRow(body3).
|
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AddRow(body4).
|
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AddRow(body5).
|
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AddRow(body6),
|
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).RowsWillBeClosed()
|
||||
}
|
||||
|
||||
// list all deleted releases
|
||||
del, err := sqlDriver.List(func(rel *rspb.Release) bool {
|
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return rel.Info.Status.Code == rspb.Status_DELETED
|
||||
})
|
||||
// check
|
||||
if err != nil {
|
||||
t.Errorf("Failed to list deleted: %v", err)
|
||||
}
|
||||
if len(del) != 2 {
|
||||
t.Errorf("Expected 2 deleted, got %d:\n%v\n", len(del), del)
|
||||
}
|
||||
|
||||
// list all deployed releases
|
||||
dpl, err := sqlDriver.List(func(rel *rspb.Release) bool {
|
||||
return rel.Info.Status.Code == rspb.Status_DEPLOYED
|
||||
})
|
||||
// check
|
||||
if err != nil {
|
||||
t.Errorf("Failed to list deployed: %v", err)
|
||||
}
|
||||
if len(dpl) != 2 {
|
||||
t.Errorf("Expected 2 deployed, got %d:\n%v\n", len(dpl), dpl)
|
||||
}
|
||||
|
||||
// list all superseded releases
|
||||
ssd, err := sqlDriver.List(func(rel *rspb.Release) bool {
|
||||
return rel.Info.Status.Code == rspb.Status_SUPERSEDED
|
||||
})
|
||||
// check
|
||||
if err != nil {
|
||||
t.Errorf("Failed to list superseded: %v", err)
|
||||
}
|
||||
if len(ssd) != 2 {
|
||||
t.Errorf("Expected 2 superseded, got %d:\n%v\n", len(ssd), ssd)
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSqlCreate(t *testing.T) {
|
||||
vers := int32(1)
|
||||
name := "smug-pigeon"
|
||||
namespace := "default"
|
||||
key := testKey(name, vers)
|
||||
rel := releaseStub(name, vers, namespace, rspb.Status_DEPLOYED)
|
||||
|
||||
sqlDriver, mock := newTestFixtureSQL(t)
|
||||
body, _ := encodeRelease(rel)
|
||||
|
||||
mock.ExpectBegin()
|
||||
mock.
|
||||
ExpectExec(regexp.QuoteMeta("INSERT INTO releases (key, body, name, version, status, owner, created_at) VALUES (?, ?, ?, ?, ?, ?, ?)")).
|
||||
WithArgs(key, body, rel.Name, int(rel.Version), rspb.Status_Code_name[int32(rel.Info.Status.Code)], "TILLER", int(time.Now().Unix())).
|
||||
WillReturnResult(sqlmock.NewResult(1, 1))
|
||||
mock.ExpectCommit()
|
||||
|
||||
if err := sqlDriver.Create(key, rel); err != nil {
|
||||
t.Fatalf("failed to create release with key %q: %v", key, err)
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSqlCreateAlreadyExists(t *testing.T) {
|
||||
vers := int32(1)
|
||||
name := "smug-pigeon"
|
||||
namespace := "default"
|
||||
key := testKey(name, vers)
|
||||
rel := releaseStub(name, vers, namespace, rspb.Status_DEPLOYED)
|
||||
|
||||
sqlDriver, mock := newTestFixtureSQL(t)
|
||||
body, _ := encodeRelease(rel)
|
||||
|
||||
// Insert fails (primary key already exists)
|
||||
mock.ExpectBegin()
|
||||
mock.
|
||||
ExpectExec(regexp.QuoteMeta("INSERT INTO releases (key, body, name, version, status, owner, created_at) VALUES (?, ?, ?, ?, ?, ?, ?)")).
|
||||
WithArgs(key, body, rel.Name, int(rel.Version), rspb.Status_Code_name[int32(rel.Info.Status.Code)], "TILLER", int(time.Now().Unix())).
|
||||
WillReturnError(fmt.Errorf("dialect dependent SQL error"))
|
||||
|
||||
// Let's check that we do make sure the error is due to a release already existing
|
||||
mock.
|
||||
ExpectQuery(regexp.QuoteMeta("SELECT key FROM releases WHERE key = ?")).
|
||||
WithArgs(key).
|
||||
WillReturnRows(
|
||||
mock.NewRows([]string{
|
||||
"body",
|
||||
}).AddRow(
|
||||
body,
|
||||
),
|
||||
).RowsWillBeClosed()
|
||||
mock.ExpectRollback()
|
||||
|
||||
if err := sqlDriver.Create(key, rel); err == nil {
|
||||
t.Fatalf("failed to create release with key %q: %v", key, err)
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSqlUpdate(t *testing.T) {
|
||||
vers := int32(1)
|
||||
name := "smug-pigeon"
|
||||
namespace := "default"
|
||||
key := testKey(name, vers)
|
||||
rel := releaseStub(name, vers, namespace, rspb.Status_DEPLOYED)
|
||||
|
||||
sqlDriver, mock := newTestFixtureSQL(t)
|
||||
body, _ := encodeRelease(rel)
|
||||
|
||||
mock.
|
||||
ExpectExec(regexp.QuoteMeta("UPDATE releases SET body=?, name=?, version=?, status=?, owner=?, modified_at=? WHERE key=?")).
|
||||
WithArgs(body, rel.Name, int(rel.Version), rspb.Status_Code_name[int32(rel.Info.Status.Code)], "TILLER", int(time.Now().Unix()), key).
|
||||
WillReturnResult(sqlmock.NewResult(0, 1))
|
||||
|
||||
if err := sqlDriver.Update(key, rel); err != nil {
|
||||
t.Fatalf("failed to update release with key %q: %v", key, err)
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSqlQuery(t *testing.T) {
|
||||
// Reflect actual use cases in ../storage.go
|
||||
labelSetDeployed := map[string]string{
|
||||
"NAME": "smug-pigeon",
|
||||
"OWNER": "TILLER",
|
||||
"STATUS": "DEPLOYED",
|
||||
}
|
||||
labelSetAll := map[string]string{
|
||||
"NAME": "smug-pigeon",
|
||||
"OWNER": "TILLER",
|
||||
}
|
||||
|
||||
supersededRelease := releaseStub("smug-pigeon", 1, "default", rspb.Status_SUPERSEDED)
|
||||
supersededReleaseBody, _ := encodeRelease(supersededRelease)
|
||||
deployedRelease := releaseStub("smug-pigeon", 2, "default", rspb.Status_DEPLOYED)
|
||||
deployedReleaseBody, _ := encodeRelease(deployedRelease)
|
||||
|
||||
// Let's actually start our test
|
||||
sqlDriver, mock := newTestFixtureSQL(t)
|
||||
|
||||
mock.
|
||||
ExpectQuery(regexp.QuoteMeta("SELECT body FROM releases WHERE name=? AND owner=? AND status=?")).
|
||||
WithArgs("smug-pigeon", "TILLER", "DEPLOYED").
|
||||
WillReturnRows(
|
||||
mock.NewRows([]string{
|
||||
"body",
|
||||
}).AddRow(
|
||||
deployedReleaseBody,
|
||||
),
|
||||
).RowsWillBeClosed()
|
||||
|
||||
mock.
|
||||
ExpectQuery(regexp.QuoteMeta("SELECT body FROM releases WHERE name=? AND owner=?")).
|
||||
WithArgs("smug-pigeon", "TILLER").
|
||||
WillReturnRows(
|
||||
mock.NewRows([]string{
|
||||
"body",
|
||||
}).AddRow(
|
||||
supersededReleaseBody,
|
||||
).AddRow(
|
||||
deployedReleaseBody,
|
||||
),
|
||||
).RowsWillBeClosed()
|
||||
|
||||
results, err := sqlDriver.Query(labelSetDeployed)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to query for deployed smug-pigeon release: %v", err)
|
||||
}
|
||||
|
||||
for _, res := range results {
|
||||
if !shallowReleaseEqual(res, deployedRelease) {
|
||||
t.Errorf("Expected release {%q}, got {%q}", deployedRelease, res)
|
||||
}
|
||||
}
|
||||
|
||||
results, err = sqlDriver.Query(labelSetAll)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to query release history for smug-pigeon: %v", err)
|
||||
}
|
||||
|
||||
if len(results) != 2 {
|
||||
t.Errorf("expected a resultset of size 2, got %d", len(results))
|
||||
}
|
||||
|
||||
for _, res := range results {
|
||||
if !shallowReleaseEqual(res, deployedRelease) && !shallowReleaseEqual(res, supersededRelease) {
|
||||
t.Errorf("Expected release {%q} or {%q}, got {%q}", deployedRelease, supersededRelease, res)
|
||||
}
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSqlDelete(t *testing.T) {
|
||||
vers := int32(1)
|
||||
name := "smug-pigeon"
|
||||
namespace := "default"
|
||||
key := testKey(name, vers)
|
||||
rel := releaseStub(name, vers, namespace, rspb.Status_DEPLOYED)
|
||||
|
||||
body, _ := encodeRelease(rel)
|
||||
|
||||
sqlDriver, mock := newTestFixtureSQL(t)
|
||||
|
||||
mock.ExpectBegin()
|
||||
mock.
|
||||
ExpectQuery("SELECT body FROM releases WHERE key = ?").
|
||||
WithArgs(key).
|
||||
WillReturnRows(
|
||||
mock.NewRows([]string{
|
||||
"body",
|
||||
}).AddRow(
|
||||
body,
|
||||
),
|
||||
).RowsWillBeClosed()
|
||||
|
||||
mock.
|
||||
ExpectExec(regexp.QuoteMeta("DELETE FROM releases WHERE key = $1")).
|
||||
WithArgs(key).
|
||||
WillReturnResult(sqlmock.NewResult(0, 1))
|
||||
mock.ExpectCommit()
|
||||
|
||||
deletedRelease, err := sqlDriver.Delete(key)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to delete release with key %q: %v", key, err)
|
||||
}
|
||||
|
||||
if !shallowReleaseEqual(rel, deletedRelease) {
|
||||
t.Errorf("Expected release {%q}, got {%q}", rel, deletedRelease)
|
||||
}
|
||||
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Errorf("sql expectations weren't met: %v", err)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue