rclone/backend/union/policy/epall.go
Josh Soref d0888edc0a Spelling fixes
Fix spelling of: above, already, anonymous, associated,
authentication, bandwidth, because, between, blocks, calculate,
candidates, cautious, changelog, cleaner, clipboard, command,
completely, concurrently, considered, constructs, corrupt, current,
daemon, dependencies, deprecated, directory, dispatcher, download,
eligible, ellipsis, encrypter, endpoint, entrieslist, essentially,
existing writers, existing, expires, filesystem, flushing, frequently,
hierarchy, however, implementation, implements, inaccurate,
individually, insensitive, longer, maximum, metadata, modified,
multipart, namedirfirst, nextcloud, obscured, opened, optional,
owncloud, pacific, passphrase, password, permanently, persimmon,
positive, potato, protocol, quota, receiving, recommends, referring,
requires, revisited, satisfied, satisfies, satisfy, semver,
serialized, session, storage, strategies, stringlist, successful,
supported, surprise, temporarily, temporary, transactions, unneeded,
update, uploads, wrapped

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-14 15:21:31 +01:00

100 lines
2.5 KiB
Go

package policy
import (
"context"
"path"
"sync"
"github.com/rclone/rclone/backend/union/upstream"
"github.com/rclone/rclone/fs"
)
func init() {
registerPolicy("epall", &EpAll{})
}
// EpAll stands for existing path, all
// Action category: apply to all found.
// Create category: apply to all found.
// Search category: same as epff.
type EpAll struct {
EpFF
}
func (p *EpAll) epall(ctx context.Context, upstreams []*upstream.Fs, filePath string) ([]*upstream.Fs, error) {
var wg sync.WaitGroup
ufs := make([]*upstream.Fs, len(upstreams))
for i, u := range upstreams {
wg.Add(1)
i, u := i, u // Closure
go func() {
rfs := u.RootFs
remote := path.Join(u.RootPath, filePath)
if findEntry(ctx, rfs, remote) != nil {
ufs[i] = u
}
wg.Done()
}()
}
wg.Wait()
var results []*upstream.Fs
for _, f := range ufs {
if f != nil {
results = append(results, f)
}
}
if len(results) == 0 {
return nil, fs.ErrorObjectNotFound
}
return results, nil
}
// Action category policy, governing the modification of files and directories
func (p *EpAll) Action(ctx context.Context, upstreams []*upstream.Fs, path string) ([]*upstream.Fs, error) {
if len(upstreams) == 0 {
return nil, fs.ErrorObjectNotFound
}
upstreams = filterRO(upstreams)
if len(upstreams) == 0 {
return nil, fs.ErrorPermissionDenied
}
return p.epall(ctx, upstreams, path)
}
// ActionEntries is ACTION category policy but receiving a set of candidate entries
func (p *EpAll) ActionEntries(entries ...upstream.Entry) ([]upstream.Entry, error) {
if len(entries) == 0 {
return nil, fs.ErrorObjectNotFound
}
entries = filterROEntries(entries)
if len(entries) == 0 {
return nil, fs.ErrorPermissionDenied
}
return entries, nil
}
// Create category policy, governing the creation of files and directories
func (p *EpAll) Create(ctx context.Context, upstreams []*upstream.Fs, path string) ([]*upstream.Fs, error) {
if len(upstreams) == 0 {
return nil, fs.ErrorObjectNotFound
}
upstreams = filterNC(upstreams)
if len(upstreams) == 0 {
return nil, fs.ErrorPermissionDenied
}
upstreams, err := p.epall(ctx, upstreams, path+"/..")
return upstreams, err
}
// CreateEntries is CREATE category policy but receiving a set of candidate entries
func (p *EpAll) CreateEntries(entries ...upstream.Entry) ([]upstream.Entry, error) {
if len(entries) == 0 {
return nil, fs.ErrorObjectNotFound
}
entries = filterNCEntries(entries)
if len(entries) == 0 {
return nil, fs.ErrorPermissionDenied
}
return entries, nil
}