forked from vmware-archive/atc
/
build_factory.go
208 lines (169 loc) · 4.77 KB
/
build_factory.go
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package db
import (
"database/sql"
"fmt"
"time"
sq "github.com/Masterminds/squirrel"
"github.com/concourse/atc/db/lock"
)
//go:generate counterfeiter . BuildFactory
type BuildFactory interface {
Build(int) (Build, bool, error)
VisibleBuilds([]string, Page) ([]Build, Pagination, error)
PublicBuilds(Page) ([]Build, Pagination, error)
GetAllStartedBuilds() ([]Build, error)
GetDrainableBuilds() ([]Build, error)
// TODO: move to BuildLifecycle, new interface (see WorkerLifecycle)
MarkNonInterceptibleBuilds() error
}
type buildFactory struct {
conn Conn
lockFactory lock.LockFactory
oneOffGracePeriod time.Duration
}
func NewBuildFactory(conn Conn, lockFactory lock.LockFactory, oneOffGracePeriod time.Duration) BuildFactory {
return &buildFactory{
conn: conn,
lockFactory: lockFactory,
oneOffGracePeriod: oneOffGracePeriod,
}
}
func (f *buildFactory) Build(buildID int) (Build, bool, error) {
build := &build{
conn: f.conn,
lockFactory: f.lockFactory,
}
row := buildsQuery.
Where(sq.Eq{"b.id": buildID}).
RunWith(f.conn).
QueryRow()
err := scanBuild(build, row, f.conn.EncryptionStrategy())
if err != nil {
if err == sql.ErrNoRows {
return nil, false, nil
}
return nil, false, err
}
return build, true, nil
}
func (f *buildFactory) VisibleBuilds(teamNames []string, page Page) ([]Build, Pagination, error) {
newBuildsQuery := buildsQuery.
Where(sq.Or{
sq.Eq{"p.public": true},
sq.Eq{"t.name": teamNames},
})
return getBuildsWithPagination(newBuildsQuery, page, f.conn, f.lockFactory)
}
func (f *buildFactory) PublicBuilds(page Page) ([]Build, Pagination, error) {
return getBuildsWithPagination(buildsQuery.Where(sq.Eq{"p.public": true}), page, f.conn, f.lockFactory)
}
func (f *buildFactory) MarkNonInterceptibleBuilds() error {
_, err := psql.Update("builds b").
Set("interceptible", false).
Where(sq.Eq{
"completed": true,
"interceptible": true,
}).
Where(sq.Or{
sq.NotEq{"job_id": nil},
sq.Expr(fmt.Sprintf("now() - end_time > '%d seconds'::interval", int(f.oneOffGracePeriod.Seconds()))),
}).
Where(sq.Or{
sq.Expr("NOT EXISTS (SELECT 1 FROM jobs j WHERE j.latest_completed_build_id = b.id)"),
sq.Eq{"status": string(BuildStatusSucceeded)},
}).
RunWith(f.conn).
Exec()
return err
}
func (f *buildFactory) GetDrainableBuilds() ([]Build, error) {
query := buildsQuery.Where(sq.Eq{
"b.completed": true,
"b.drained": false,
})
return getBuilds(query, f.conn, f.lockFactory)
}
func (f *buildFactory) GetAllStartedBuilds() ([]Build, error) {
query := buildsQuery.Where(sq.Eq{
"b.status": BuildStatusStarted,
})
return getBuilds(query, f.conn, f.lockFactory)
}
func getBuilds(buildsQuery sq.SelectBuilder, conn Conn, lockFactory lock.LockFactory) ([]Build, error) {
rows, err := buildsQuery.RunWith(conn).Query()
if err != nil {
return nil, err
}
defer Close(rows)
bs := []Build{}
for rows.Next() {
b := &build{conn: conn, lockFactory: lockFactory}
err := scanBuild(b, rows, conn.EncryptionStrategy())
if err != nil {
return nil, err
}
bs = append(bs, b)
}
return bs, nil
}
func getBuildsWithPagination(buildsQuery sq.SelectBuilder, page Page, conn Conn, lockFactory lock.LockFactory) ([]Build, Pagination, error) {
var rows *sql.Rows
var err error
var reverse bool
if page.Since == 0 && page.Until == 0 {
buildsQuery = buildsQuery.OrderBy("b.id DESC").Limit(uint64(page.Limit))
} else if page.Until != 0 {
buildsQuery = buildsQuery.Where(sq.Gt{"b.id": uint64(page.Until)}).OrderBy("b.id ASC").Limit(uint64(page.Limit))
reverse = true
} else {
buildsQuery = buildsQuery.Where(sq.Lt{"b.id": page.Since}).OrderBy("b.id DESC").Limit(uint64(page.Limit))
}
rows, err = buildsQuery.RunWith(conn).Query()
if err != nil {
return nil, Pagination{}, err
}
defer Close(rows)
builds := []Build{}
for rows.Next() {
build := &build{conn: conn, lockFactory: lockFactory}
err = scanBuild(build, rows, conn.EncryptionStrategy())
if err != nil {
return nil, Pagination{}, err
}
builds = append(builds, build)
}
if reverse {
for i, j := 0, len(builds)-1; i < j; i, j = i+1, j-1 {
builds[i], builds[j] = builds[j], builds[i]
}
}
if len(builds) == 0 {
return builds, Pagination{}, nil
}
var minID int
var maxID int
err = psql.Select("COALESCE(MAX(id), 0)", "COALESCE(MIN(id), 0)").
From("builds").
RunWith(conn).
QueryRow().
Scan(&maxID, &minID)
if err != nil {
return nil, Pagination{}, err
}
first := builds[0]
last := builds[len(builds)-1]
var pagination Pagination
if first.ID() < maxID {
pagination.Previous = &Page{
Until: first.ID(),
Limit: page.Limit,
}
}
if last.ID() > minID {
pagination.Next = &Page{
Since: last.ID(),
Limit: page.Limit,
}
}
return builds, pagination, nil
}