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Abstract hash function usage (#28138)

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Refactor Hash interfaces and centralize hash function. This will allow
easier introduction of different hash function later on.

This forms the "no-op" part of the SHA256 enablement patch.
This commit is contained in:
Adam Majer 2023-12-13 21:02:00 +00:00 • committed by GitHub
parent 064f05204c
commit cbf923e87b
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GPG key ID: 4AEE18F83AFDEB23
122 changed files with 947 additions and 594 deletions
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16
modules/git/parse_gogit.go
View file

@ -11,12 +11,14 @@ import (
"strconv"
"strings"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/filemode"
"github.com/go-git/go-git/v5/plumbing/hash"
"github.com/go-git/go-git/v5/plumbing/object"
)
// ParseTreeEntries parses the output of a `git ls-tree -l` command.
func ParseTreeEntries(data []byte) ([]*TreeEntry, error) {
func ParseTreeEntries(h ObjectFormat, data []byte) ([]*TreeEntry, error) {
return parseTreeEntries(data, nil)
}
@ -50,15 +52,16 @@ func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
return nil, fmt.Errorf("unknown type: %v", string(data[pos:pos+6]))
}
if pos+40 > len(data) {
// in hex format, not byte format ....
if pos+hash.Size*2 > len(data) {
return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
}
id, err := NewIDFromString(string(data[pos : pos+40]))
var err error
entry.ID, err = IDFromString(string(data[pos : pos+hash.Size*2]))
if err != nil {
return nil, fmt.Errorf("Invalid ls-tree output: %w", err)
return nil, fmt.Errorf("invalid ls-tree output: %w", err)
}
entry.ID = id
entry.gogitTreeEntry.Hash = id
entry.gogitTreeEntry.Hash = plumbing.Hash(entry.ID.RawValue())
pos += 41 // skip over sha and trailing space
end := pos + bytes.IndexByte(data[pos:], '\t')
@ -77,6 +80,7 @@ func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
// In case entry name is surrounded by double quotes(it happens only in git-shell).
if data[pos] == '"' {
var err error
entry.gogitTreeEntry.Name, err = strconv.Unquote(string(data[pos:end]))
if err != nil {
return nil, fmt.Errorf("Invalid ls-tree output: %w", err)