forgejo-federation/modules/git/repo_object.go

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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
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import (
"bytes"
"io"
"strings"
)
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// ObjectType git object type
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type ObjectType string
const (
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// ObjectCommit commit object type
ObjectCommit ObjectType = "commit"
// ObjectTree tree object type
ObjectTree ObjectType = "tree"
// ObjectBlob blob object type
ObjectBlob ObjectType = "blob"
// ObjectTag tag object type
ObjectTag ObjectType = "tag"
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)
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// HashObject takes a reader and returns SHA1 hash for that reader
func (repo *Repository) HashObject(reader io.Reader) (SHA1, error) {
idStr, err := repo.hashObject(reader)
if err != nil {
return SHA1{}, err
}
return NewIDFromString(idStr)
}
func (repo *Repository) hashObject(reader io.Reader) (string, error) {
cmd := NewCommand("hash-object", "-w", "--stdin")
stdout := new(bytes.Buffer)
stderr := new(bytes.Buffer)
err := cmd.RunInDirFullPipeline(repo.Path, stdout, stderr, reader)
if err != nil {
return "", err
}
return strings.TrimSpace(stdout.String()), nil
}