package arvados
import (
- "os"
- "sync"
- "time"
+ "log"
+ "strings"
)
-// projectnode exposes an Arvados project as a filesystem directory.
-type projectnode struct {
- inode
- uuid string
- err error
-
- loadLock sync.Mutex
- loadStart time.Time
+func (fs *customFileSystem) defaultUUID(uuid string) (string, error) {
+ if uuid != "" {
+ return uuid, nil
+ }
+ var resp User
+ err := fs.RequestAndDecode(&resp, "GET", "arvados/v1/users/current", nil, nil)
+ if err != nil {
+ return "", err
+ }
+ return resp.UUID, nil
}
-func (pn *projectnode) load() {
- fs := pn.FS().(*siteFileSystem)
-
- pn.loadLock.Lock()
- defer pn.loadLock.Unlock()
- if !fs.Stale(pn.loadStart) {
- return
+// loadOneChild loads only the named child, if it exists.
+func (fs *customFileSystem) projectsLoadOne(parent inode, uuid, name string) (inode, error) {
+ uuid, err := fs.defaultUUID(uuid)
+ if err != nil {
+ return nil, err
}
- pn.loadStart = time.Now()
- if pn.uuid == "" {
- var resp User
- pn.err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/users/current", nil, nil)
- if pn.err != nil {
- return
+ var contents CollectionList
+ for _, subst := range []string{"/", fs.forwardSlashNameSubstitution} {
+ contents = CollectionList{}
+ err = fs.RequestAndDecode(&contents, "GET", "arvados/v1/groups/"+uuid+"/contents", nil, ResourceListParams{
+ Count: "none",
+ Filters: []Filter{
+ {"name", "=", strings.Replace(name, subst, "/", -1)},
+ {"uuid", "is_a", []string{"arvados#collection", "arvados#group"}},
+ {"groups.group_class", "=", "project"},
+ },
+ })
+ if err != nil {
+ return nil, err
}
- pn.uuid = resp.UUID
+ if len(contents.Items) > 0 || fs.forwardSlashNameSubstitution == "/" || fs.forwardSlashNameSubstitution == "" || !strings.Contains(name, fs.forwardSlashNameSubstitution) {
+ break
+ }
+ // If the requested name contains the configured "/"
+ // replacement string and didn't match a
+ // project/collection exactly, we'll try again with
+ // "/" in its place, so a lookup of a munged name
+ // works regardless of whether the directory listing
+ // has been populated with escaped names.
+ //
+ // Note this doesn't handle items whose names contain
+ // both "/" and the substitution string.
+ }
+ if len(contents.Items) == 0 {
+ return nil, nil
}
- filters := []Filter{{"owner_uuid", "=", pn.uuid}}
+ coll := contents.Items[0]
+
+ if strings.Contains(coll.UUID, "-j7d0g-") {
+ // Group item was loaded into a Collection var -- but
+ // we only need the Name and UUID anyway, so it's OK.
+ return fs.newProjectNode(parent, coll.Name, coll.UUID), nil
+ } else if strings.Contains(coll.UUID, "-4zz18-") {
+ return deferredCollectionFS(fs, parent, coll), nil
+ } else {
+ log.Printf("projectnode: unrecognized UUID in response: %q", coll.UUID)
+ return nil, ErrInvalidArgument
+ }
+}
+
+func (fs *customFileSystem) projectsLoadAll(parent inode, uuid string) ([]inode, error) {
+ uuid, err := fs.defaultUUID(uuid)
+ if err != nil {
+ return nil, err
+ }
+
+ var inodes []inode
+
+ // Note: the "filters" slice's backing array might be reused
+ // by append(filters,...) below. This isn't goroutine safe,
+ // but all accesses are in the same goroutine, so it's OK.
+ filters := []Filter{{"owner_uuid", "=", uuid}}
params := ResourceListParams{
+ Count: "none",
Filters: filters,
Order: "uuid",
}
for {
var resp CollectionList
- pn.err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/collections", nil, params)
- if pn.err != nil {
- return
+ err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/collections", nil, params)
+ if err != nil {
+ return nil, err
}
if len(resp.Items) == 0 {
break
}
for _, i := range resp.Items {
coll := i
- if coll.Name == "" {
+ if fs.forwardSlashNameSubstitution != "" {
+ coll.Name = strings.Replace(coll.Name, "/", fs.forwardSlashNameSubstitution, -1)
+ }
+ if !permittedName(coll.Name) {
continue
}
- pn.inode.Child(coll.Name, func(inode) (inode, error) {
- return deferredCollectionFS(fs, pn, coll), nil
- })
+ inodes = append(inodes, deferredCollectionFS(fs, parent, coll))
}
params.Filters = append(filters, Filter{"uuid", ">", resp.Items[len(resp.Items)-1].UUID})
}
params.Filters = filters
for {
var resp GroupList
- pn.err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/groups", nil, params)
- if pn.err != nil {
- return
+ err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/groups", nil, params)
+ if err != nil {
+ return nil, err
}
if len(resp.Items) == 0 {
break
}
for _, group := range resp.Items {
- if group.Name == "" || group.Name == "." || group.Name == ".." {
+ if fs.forwardSlashNameSubstitution != "" {
+ group.Name = strings.Replace(group.Name, "/", fs.forwardSlashNameSubstitution, -1)
+ }
+ if !permittedName(group.Name) {
continue
}
- pn.inode.Child(group.Name, func(inode) (inode, error) {
- return fs.newProjectNode(pn, group.Name, group.UUID), nil
- })
+ inodes = append(inodes, fs.newProjectNode(parent, group.Name, group.UUID))
}
params.Filters = append(filters, Filter{"uuid", ">", resp.Items[len(resp.Items)-1].UUID})
}
- pn.err = nil
-}
-
-func (pn *projectnode) Readdir() ([]os.FileInfo, error) {
- pn.load()
- if pn.err != nil {
- return nil, pn.err
- }
- return pn.inode.Readdir()
-}
-
-func (pn *projectnode) Child(name string, replace func(inode) (inode, error)) (inode, error) {
- pn.load()
- if pn.err != nil {
- return nil, pn.err
- }
- if replace == nil {
- // lookup
- return pn.inode.Child(name, nil)
- }
- return pn.inode.Child(name, func(existing inode) (inode, error) {
- if repl, err := replace(existing); err != nil {
- return existing, err
- } else if repl == nil {
- if existing == nil {
- return nil, nil
- }
- // rmdir
- // (TODO)
- return existing, ErrInvalidArgument
- } else if existing != nil {
- // clobber
- return existing, ErrInvalidArgument
- } else if repl.FileInfo().IsDir() {
- // mkdir
- // TODO: repl.SetParent(pn, name), etc.
- return existing, ErrInvalidArgument
- } else {
- // create file
- return existing, ErrInvalidArgument
- }
- })
+ return inodes, nil
}
projects / arvados.git / blobdiff