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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_nogogit.go
View file

@ -17,13 +17,13 @@ import (
)
// ParseTreeEntries parses the output of a `git ls-tree -l` command.
func ParseTreeEntries(data []byte) ([]*TreeEntry, error) {
return parseTreeEntries(data, nil)
func ParseTreeEntries(objectFormat ObjectFormat, data []byte) ([]*TreeEntry, error) {
return parseTreeEntries(objectFormat, data, nil)
}
var sepSpace = []byte{' '}
func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
func parseTreeEntries(objectFormat ObjectFormat, data []byte, ptree *Tree) ([]*TreeEntry, error) {
var err error
entries := make([]*TreeEntry, 0, bytes.Count(data, []byte{'\n'})+1)
for pos := 0; pos < len(data); {
@ -72,7 +72,7 @@ func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
return nil, fmt.Errorf("unknown type: %v", string(entryMode))
}
entry.ID, err = NewIDFromString(string(entryObjectID))
entry.ID, err = objectFormat.NewIDFromString(string(entryObjectID))
if err != nil {
return nil, fmt.Errorf("invalid ls-tree output (invalid object id): %q, err: %w", line, err)
}
@ -92,15 +92,15 @@ func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
return entries, nil
}
func catBatchParseTreeEntries(ptree *Tree, rd *bufio.Reader, sz int64) ([]*TreeEntry, error) {
func catBatchParseTreeEntries(objectFormat ObjectFormat, ptree *Tree, rd *bufio.Reader, sz int64) ([]*TreeEntry, error) {
fnameBuf := make([]byte, 4096)
modeBuf := make([]byte, 40)
shaBuf := make([]byte, 40)
shaBuf := make([]byte, objectFormat.FullLength())
entries := make([]*TreeEntry, 0, 10)
loop:
for sz > 0 {
mode, fname, sha, count, err := ParseTreeLine(rd, modeBuf, fnameBuf, shaBuf)
mode, fname, sha, count, err := ParseTreeLine(objectFormat, rd, modeBuf, fnameBuf, shaBuf)
if err != nil {
if err == io.EOF {
break loop
@ -127,7 +127,7 @@ loop:
return nil, fmt.Errorf("unknown mode: %v", string(mode))
}
entry.ID = MustID(sha)
entry.ID = objectFormat.MustID(sha)
entry.name = string(fname)
entries = append(entries, entry)
}