func (sub *Sub) updateMetadata(request *subproto.UpdateRequest,
requiredEntry *filesystem.DirectoryEntry, myPathName string) {
if sub.inodesChanged[requiredEntry.InodeNumber] {
return
}
var inode subproto.Inode
inode.Name = myPathName
inode.GenericInode = requiredEntry.Inode()
request.InodesToChange = append(request.InodesToChange, inode)
sub.inodesChanged[requiredEntry.InodeNumber] = true
}
func (sub *Sub) addInode(request *subproto.UpdateRequest,
requiredEntry *filesystem.DirectoryEntry, myPathName string) {
requiredInode := requiredEntry.Inode()
if name, ok := sub.inodesCreated[requiredEntry.InodeNumber]; ok {
makeHardlink(request, myPathName, name)
return
}
// Try to find a sibling inode.
names := sub.requiredFS.InodeToFilenamesTable()[requiredEntry.InodeNumber]
subFS := sub.FileSystem
if len(names) > 1 {
var sameDataInode filesystem.GenericInode
var sameDataName string
for _, name := range names {
if inum, found := subFS.FilenameToInodeTable()[name]; found {
subInode := sub.FileSystem.InodeTable[inum]
_, sameMetadata, sameData := filesystem.CompareInodes(
subInode, requiredInode, nil)
if sameMetadata && sameData {
makeHardlink(request, myPathName, name)
return
}
if sameData {
sameDataInode = subInode
sameDataName = name
}
}
}
if sameDataInode != nil {
sub.updateMetadata(request, requiredEntry, sameDataName)
makeHardlink(request, myPathName, sameDataName)
return
}
}
if inode, ok := requiredEntry.Inode().(*filesystem.RegularInode); ok {
if inode.Size > 0 {
if _, ok := sub.subObjectCacheUsage[inode.Hash]; ok {
sub.subObjectCacheUsage[inode.Hash]++
} else {
// Not in object cache: grab it from file-system.
request.FilesToCopyToCache = append(
request.FilesToCopyToCache,
sub.getFileToCopy(myPathName, inode.Hash))
sub.subObjectCacheUsage[inode.Hash] = 1
}
}
}
var inode subproto.Inode
inode.Name = myPathName
inode.GenericInode = requiredEntry.Inode()
request.InodesToMake = append(request.InodesToMake, inode)
sub.inodesCreated[requiredEntry.InodeNumber] = myPathName
}
func makeDirectory(request *subproto.UpdateRequest,
requiredInode *filesystem.DirectoryInode, pathName string, create bool) {
var newInode subproto.Inode
newInode.Name = pathName
var newDirectoryInode filesystem.DirectoryInode
newDirectoryInode.Mode = requiredInode.Mode
newDirectoryInode.Uid = requiredInode.Uid
newDirectoryInode.Gid = requiredInode.Gid
newInode.GenericInode = &newDirectoryInode
if create {
request.DirectoriesToMake = append(request.DirectoriesToMake, newInode)
} else {
request.InodesToChange = append(request.InodesToChange, newInode)
}
}
func addInode(request *subproto.UpdateRequest, state *state,
requiredEntry *filesystem.DirectoryEntry, myPathName string) {
requiredInode := requiredEntry.Inode()
if name, ok := state.inodesCreated[requiredEntry.InodeNumber]; ok {
makeHardlink(request, myPathName, name)
return
}
// Try to find a sibling inode.
names := state.requiredFS.InodeToFilenamesTable[requiredEntry.InodeNumber]
if len(names) > 1 {
var sameDataInode filesystem.GenericInode
var sameDataName string
for _, name := range names {
if inum, found := state.getSubInodeFromFilename(name); found {
subInode := state.subFS.InodeTable[inum]
_, sameMetadata, sameData := filesystem.CompareInodes(
subInode, requiredInode, nil)
if sameMetadata && sameData {
makeHardlink(request, myPathName, name)
return
}
if sameData {
sameDataInode = subInode
sameDataName = name
}
}
}
if sameDataInode != nil {
updateMetadata(request, state, requiredEntry, sameDataName)
makeHardlink(request, myPathName, sameDataName)
return
}
}
if inode, ok := requiredEntry.Inode().(*filesystem.RegularInode); ok {
if inode.Size > 0 {
if _, ok := state.subObjectCacheUsage[inode.Hash]; ok {
state.subObjectCacheUsage[inode.Hash]++
} else {
// Not in object cache: grab it from file-system.
if state.subFS.HashToInodesTable == nil {
state.subFS.BuildHashToInodesTable()
}
if ilist, ok := state.subFS.HashToInodesTable[inode.Hash]; ok {
var fileToCopy subproto.FileToCopyToCache
fileToCopy.Name =
state.subFS.InodeToFilenamesTable[ilist[0]][0]
fileToCopy.Hash = inode.Hash
request.FilesToCopyToCache = append(
request.FilesToCopyToCache, fileToCopy)
state.subObjectCacheUsage[inode.Hash] = 1
} else {
panic("No object in cache for: " + myPathName)
}
}
}
}
var inode subproto.Inode
inode.Name = myPathName
inode.GenericInode = requiredEntry.Inode()
request.InodesToMake = append(request.InodesToMake, inode)
state.inodesCreated[requiredEntry.InodeNumber] = myPathName
}