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package disk
import (
"strings"
"sync"
"time"
"gitlab.com/gitlab-org/gitlab-pages/internal/domain"
)
// Disk struct represents a map of all domains supported by pages that are
// stored on a disk with corresponding `config.json`.
type Disk struct {
dm Map
lock *sync.RWMutex
}
// New is a factory method for the Disk source. It is initializing a mutex. It
// should not initialize `dm` as we later check the readiness by comparing it
// with a nil value.
func New() *Disk {
return &Disk{
lock: &sync.RWMutex{},
}
}
// GetDomain returns a domain from the domains map
func (d *Disk) GetDomain(host string) *domain.Domain {
host = strings.ToLower(host)
d.lock.RLock()
defer d.lock.RUnlock()
domain, _ := d.dm[host]
return domain
}
// HasDomain checks for presence of a domain in the domains map
func (d *Disk) HasDomain(host string) bool {
d.lock.RLock()
defer d.lock.RUnlock()
host = strings.ToLower(host)
_, isPresent := d.dm[host]
return isPresent
}
// IsReady checks if the domains source is ready for work. The disk source is
// ready after traversing entire filesystem and reading all domains'
// configuration files.
func (d *Disk) IsReady() bool {
return d.dm != nil
}
// Read starts the domain source, in this case it is reading domains from
// groups on disk concurrently.
func (d *Disk) Read(rootDomain string) {
go Watch(rootDomain, d.updateDomains, time.Second)
}
func (d *Disk) updateDomains(dm Map) {
d.lock.Lock()
defer d.lock.Unlock()
d.dm = dm
}
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