gitech

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// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build !gogit
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package git
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import (
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	"path"
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	"strings"
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)
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// GetTreeEntryByPath get the tree entries according the sub dir
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func (t *Tree) GetTreeEntryByPath(relpath string) (*TreeEntry, error) {
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	if len(relpath) == 0 {
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		return &TreeEntry{
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			ptree:     t,
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			ID:        t.ID,
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			name:      "",
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			fullName:  "",
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			entryMode: EntryModeTree,
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		}, nil
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	}
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	// FIXME: This should probably use git cat-file --batch to be a bit more efficient
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	relpath = path.Clean(relpath)
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	parts := strings.Split(relpath, "/")
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	var err error
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	tree := t
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	for i, name := range parts {
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		if i == len(parts)-1 {
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			entries, err := tree.ListEntries()
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			if err != nil {
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				return nil, err
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			}
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			for _, v := range entries {
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				if v.Name() == name {
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					return v, nil
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				}
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			}
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		} else {
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			tree, err = tree.SubTree(name)
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			if err != nil {
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				return nil, err
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			}
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		}
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	}
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	return nil, ErrNotExist{"", relpath}
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}
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