7c891bd5f2
message: Initial commit, can create master commit and verify previous master commits change_hash: ADgeVBdfi1hA0TTDrBIkYHaQQYoxZaInZz1p/BAH35Ng credentials: - type: pgp_signature pub_key_id: 95C46FA6A41148AC body: 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 account: mediocregopher
118 lines
2.9 KiB
Go
118 lines
2.9 KiB
Go
package fs
|
|
|
|
import (
|
|
"path"
|
|
"sort"
|
|
"strings"
|
|
|
|
"gopkg.in/src-d/go-billy.v4"
|
|
"gopkg.in/src-d/go-git.v4/plumbing"
|
|
"gopkg.in/src-d/go-git.v4/plumbing/filemode"
|
|
"gopkg.in/src-d/go-git.v4/plumbing/format/index"
|
|
"gopkg.in/src-d/go-git.v4/plumbing/object"
|
|
"gopkg.in/src-d/go-git.v4/storage"
|
|
)
|
|
|
|
// This file is largely copied from the git-go project's worktree_commit.go @ v4.13.1
|
|
|
|
// buildTreeHelper converts a given index.Index file into multiple git objects
|
|
// reading the blobs from the given filesystem and creating the trees from the
|
|
// index structure. The created objects are pushed to a given Storer.
|
|
type buildTreeHelper struct {
|
|
fs billy.Filesystem
|
|
s storage.Storer
|
|
|
|
trees map[string]*object.Tree
|
|
entries map[string]*object.TreeEntry
|
|
}
|
|
|
|
// BuildTree builds the tree objects and push its to the storer, the hash
|
|
// of the root tree is returned.
|
|
func (h *buildTreeHelper) BuildTree(idx *index.Index) (plumbing.Hash, error) {
|
|
const rootNode = ""
|
|
h.trees = map[string]*object.Tree{rootNode: {}}
|
|
h.entries = map[string]*object.TreeEntry{}
|
|
|
|
for _, e := range idx.Entries {
|
|
if err := h.commitIndexEntry(e); err != nil {
|
|
return plumbing.ZeroHash, err
|
|
}
|
|
}
|
|
|
|
return h.copyTreeToStorageRecursive(rootNode, h.trees[rootNode])
|
|
}
|
|
|
|
func (h *buildTreeHelper) commitIndexEntry(e *index.Entry) error {
|
|
parts := strings.Split(e.Name, "/")
|
|
|
|
var fullpath string
|
|
for _, part := range parts {
|
|
parent := fullpath
|
|
fullpath = path.Join(fullpath, part)
|
|
|
|
h.doBuildTree(e, parent, fullpath)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (h *buildTreeHelper) doBuildTree(e *index.Entry, parent, fullpath string) {
|
|
if _, ok := h.trees[fullpath]; ok {
|
|
return
|
|
}
|
|
|
|
if _, ok := h.entries[fullpath]; ok {
|
|
return
|
|
}
|
|
|
|
te := object.TreeEntry{Name: path.Base(fullpath)}
|
|
|
|
if fullpath == e.Name {
|
|
te.Mode = e.Mode
|
|
te.Hash = e.Hash
|
|
} else {
|
|
te.Mode = filemode.Dir
|
|
h.trees[fullpath] = &object.Tree{}
|
|
}
|
|
|
|
h.trees[parent].Entries = append(h.trees[parent].Entries, te)
|
|
}
|
|
|
|
type sortableEntries []object.TreeEntry
|
|
|
|
func (sortableEntries) sortName(te object.TreeEntry) string {
|
|
if te.Mode == filemode.Dir {
|
|
return te.Name + "/"
|
|
}
|
|
return te.Name
|
|
}
|
|
func (se sortableEntries) Len() int { return len(se) }
|
|
func (se sortableEntries) Less(i int, j int) bool { return se.sortName(se[i]) < se.sortName(se[j]) }
|
|
func (se sortableEntries) Swap(i int, j int) { se[i], se[j] = se[j], se[i] }
|
|
|
|
func (h *buildTreeHelper) copyTreeToStorageRecursive(parent string, t *object.Tree) (plumbing.Hash, error) {
|
|
sort.Sort(sortableEntries(t.Entries))
|
|
for i, e := range t.Entries {
|
|
if e.Mode != filemode.Dir && !e.Hash.IsZero() {
|
|
continue
|
|
}
|
|
|
|
path := path.Join(parent, e.Name)
|
|
|
|
var err error
|
|
e.Hash, err = h.copyTreeToStorageRecursive(path, h.trees[path])
|
|
if err != nil {
|
|
return plumbing.ZeroHash, err
|
|
}
|
|
|
|
t.Entries[i] = e
|
|
}
|
|
|
|
o := h.s.NewEncodedObject()
|
|
if err := t.Encode(o); err != nil {
|
|
return plumbing.ZeroHash, err
|
|
}
|
|
|
|
return h.s.SetEncodedObject(o)
|
|
}
|