diff options
Diffstat (limited to 'object/fetch/path.go')
| -rw-r--r-- | object/fetch/path.go | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/object/fetch/path.go b/object/fetch/path.go deleted file mode 100644 index e3c468db..00000000 --- a/object/fetch/path.go +++ /dev/null @@ -1,105 +0,0 @@ -package fetch - -import ( - "fmt" - - objectid "codeberg.org/lindenii/furgit/object/id" - "codeberg.org/lindenii/furgit/object/tree" -) - -// PathEmptyError indicates that Path received no segments. -type PathEmptyError struct{} - -func (err *PathEmptyError) Error() string { - return "object/fetch: empty tree path" -} - -// PathSegmentEmptyError indicates that one path segment is empty. -type PathSegmentEmptyError struct { - Index int -} - -func (err *PathSegmentEmptyError) Error() string { - return fmt.Sprintf("object/fetch: empty tree path segment at index %d", err.Index) -} - -// PathNotFoundError indicates that one tree path segment was not found. -type PathNotFoundError struct { - Index int - Name []byte -} - -func (err *PathNotFoundError) Error() string { - return fmt.Sprintf("object/fetch: tree entry %q not found at index %d", err.Name, err.Index) -} - -// PathNotTreeError indicates that one intermediate path segment was not a tree. -type PathNotTreeError struct { - Index int - Name []byte -} - -func (err *PathNotTreeError) Error() string { - return fmt.Sprintf("object/fetch: path segment %q at index %d is not a tree", err.Name, err.Index) -} - -// Path resolves parts within the tree identified by root and returns the final -// tree entry. -// -// The root object may be any tree-ish object accepted by PeelToTree. -// -// parts must contain at least one path segment. Intermediate path segments -// must resolve to tree entries. The final entry is returned without loading -// its object. Path segments may not contain \x00. -// -// The path cannot be accurately represented as a string or a single []byte -// because Git tree entry names may include slashes. While []string is -// technically possible (since Go strings are not necessarily UTF-8), they -// do often imply UTF-8 in practice, which would be undesirable. -// -// If your entry names are valid UTF-8 and uses / solely as segment separators, -// it may be convenient to use TreeFS for an io/fs.FS-like interface. -// -// Labels: Life-Parent. -func (r *Fetcher) Path(root objectid.ObjectID, parts [][]byte) (tree.TreeEntry, error) { - if len(parts) == 0 { - return tree.TreeEntry{}, &PathEmptyError{} - } - - current, err := r.PeelToTree(root) - if err != nil { - return tree.TreeEntry{}, err - } - - for i, part := range parts { - if len(part) == 0 { - return tree.TreeEntry{}, &PathSegmentEmptyError{Index: i} - } - - entry := current.Object().Entry(part) - if entry == nil { - return tree.TreeEntry{}, &PathNotFoundError{ - Index: i, - Name: append([]byte(nil), part...), - } - } - - if i == len(parts)-1 { - return *entry, nil - } - - if entry.Mode != tree.FileModeDir { - return tree.TreeEntry{}, &PathNotTreeError{ - Index: i, - Name: append([]byte(nil), part...), - } - } - - current, err = r.ExactTree(entry.ID) - if err != nil { - return tree.TreeEntry{}, err - } - } - - return tree.TreeEntry{}, &PathNotFoundError{Index: len(parts) - 1} -} |
