forked from Shiloh/githaven
4eb2a29910
The 4 functions are duplicated, especially as interface methods. I think we just need to keep `MustID` the only one and remove other 3. ``` MustID(b []byte) ObjectID MustIDFromString(s string) ObjectID NewID(b []byte) (ObjectID, error) NewIDFromString(s string) (ObjectID, error) ``` Introduced the new interfrace method `ComputeHash` which will replace the interface `HasherInterface`. Now we don't need to keep two interfaces. Reintroduced `git.NewIDFromString` and `git.MustIDFromString`. The new function will detect the hash length to decide which objectformat of it. If it's 40, then it's SHA1. If it's 64, then it's SHA256. This will be right if the commitID is a full one. So the parameter should be always a full commit id. @AdamMajer Please review.
97 lines
2.8 KiB
Go
97 lines
2.8 KiB
Go
// Copyright 2018 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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"bytes"
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"fmt"
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"strconv"
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"strings"
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"github.com/go-git/go-git/v5/plumbing"
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"github.com/go-git/go-git/v5/plumbing/filemode"
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"github.com/go-git/go-git/v5/plumbing/hash"
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"github.com/go-git/go-git/v5/plumbing/object"
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)
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// ParseTreeEntries parses the output of a `git ls-tree -l` command.
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func ParseTreeEntries(h ObjectFormat, data []byte) ([]*TreeEntry, error) {
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return parseTreeEntries(data, nil)
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}
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func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
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entries := make([]*TreeEntry, 0, 10)
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for pos := 0; pos < len(data); {
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// expect line to be of the form "<mode> <type> <sha> <space-padded-size>\t<filename>"
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entry := new(TreeEntry)
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entry.gogitTreeEntry = &object.TreeEntry{}
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entry.ptree = ptree
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if pos+6 > len(data) {
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return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
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}
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switch string(data[pos : pos+6]) {
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case "100644":
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entry.gogitTreeEntry.Mode = filemode.Regular
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pos += 12 // skip over "100644 blob "
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case "100755":
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entry.gogitTreeEntry.Mode = filemode.Executable
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pos += 12 // skip over "100755 blob "
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case "120000":
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entry.gogitTreeEntry.Mode = filemode.Symlink
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pos += 12 // skip over "120000 blob "
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case "160000":
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entry.gogitTreeEntry.Mode = filemode.Submodule
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pos += 14 // skip over "160000 object "
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case "040000":
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entry.gogitTreeEntry.Mode = filemode.Dir
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pos += 12 // skip over "040000 tree "
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default:
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return nil, fmt.Errorf("unknown type: %v", string(data[pos:pos+6]))
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}
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// in hex format, not byte format ....
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if pos+hash.Size*2 > len(data) {
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return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
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}
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var err error
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entry.ID, err = NewIDFromString(string(data[pos : pos+hash.Size*2]))
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if err != nil {
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return nil, fmt.Errorf("invalid ls-tree output: %w", err)
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}
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entry.gogitTreeEntry.Hash = plumbing.Hash(entry.ID.RawValue())
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pos += 41 // skip over sha and trailing space
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end := pos + bytes.IndexByte(data[pos:], '\t')
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if end < pos {
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return nil, fmt.Errorf("Invalid ls-tree -l output: %s", string(data))
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}
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entry.size, _ = strconv.ParseInt(strings.TrimSpace(string(data[pos:end])), 10, 64)
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entry.sized = true
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pos = end + 1
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end = pos + bytes.IndexByte(data[pos:], '\n')
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if end < pos {
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return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
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}
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// In case entry name is surrounded by double quotes(it happens only in git-shell).
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if data[pos] == '"' {
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var err error
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entry.gogitTreeEntry.Name, err = strconv.Unquote(string(data[pos:end]))
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if err != nil {
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return nil, fmt.Errorf("Invalid ls-tree output: %w", err)
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}
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} else {
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entry.gogitTreeEntry.Name = string(data[pos:end])
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}
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pos = end + 1
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entries = append(entries, entry)
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}
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return entries, nil
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}
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