mirror of
https://github.com/MichaelMure/git-bug.git
synced 2024-12-15 02:01:43 +03:00
71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package repository
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import (
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"fmt"
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"strings"
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)
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type TreeEntry struct {
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ObjectType ObjectType
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Hash Hash
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Name string
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}
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type ObjectType int
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const (
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Unknown ObjectType = iota
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Blob
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Tree
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)
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func ParseTreeEntry(line string) (TreeEntry, error) {
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fields := strings.Fields(line)
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if len(fields) < 4 {
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return TreeEntry{}, fmt.Errorf("Invalid input to parse as a TreeEntry")
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}
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objType, err := ParseObjectType(fields[0], fields[1])
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if err != nil {
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return TreeEntry{}, err
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}
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hash := Hash(fields[2])
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name := strings.Join(fields[3:], "")
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return TreeEntry{
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ObjectType: objType,
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Hash: hash,
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Name: name,
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}, nil
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}
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// Format the entry as a git ls-tree compatible line
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func (entry TreeEntry) Format() string {
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return fmt.Sprintf("%s %s\t%s\n", entry.ObjectType.Format(), entry.Hash, entry.Name)
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}
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func (ot ObjectType) Format() string {
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switch ot {
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case Blob:
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return "100644 blob"
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case Tree:
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return "040000 tree"
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default:
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panic("Unknown git object type")
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}
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}
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func ParseObjectType(mode, objType string) (ObjectType, error) {
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switch {
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case mode == "100644" && objType == "blob":
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return Blob, nil
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case mode == "040000" && objType == "tree":
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return Tree, nil
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default:
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return Unknown, fmt.Errorf("Unknown git object type %s %s", mode, objType)
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}
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}
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