mirror of
https://github.com/vee1e/gittuf.git
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46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// Copyright The gittuf Authors
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// SPDX-License-Identifier: Apache-2.0
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package gitinterface
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import (
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"github.com/gittuf/gittuf/pkg/githash"
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)
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const (
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GitBlobHashName = "gitBlob"
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SHA256HashName = "sha256"
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)
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var (
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ErrInvalidHashEncoding = githash.ErrInvalidHashEncoding
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ErrInvalidHashLength = githash.ErrInvalidHashLength
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)
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// Hash represents a Git object hash.
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//
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// Deprecated: use githash.Hash.
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type Hash = githash.Hash
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// ZeroHash represents an empty SHA-1 Hash. It is safe to use as an
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// error-return sentinel and in comparisons via Hash.IsZero (which matches both
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// SHA-1 and SHA-256 zero hashes). When the value is passed to Git or compared
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// against a Git-produced ID, prefer Repository.ZeroHash, which returns the zero
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// hash matching the repository's object format.
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var ZeroHash = githash.ZeroHash
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// ZeroHash returns the all-zeroes Hash for the repository's object format. Git
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// uses this value to denote, for example, the absence of a previous value when
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// creating or deleting a reference.
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func (r *Repository) ZeroHash() Hash {
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if r.objectFormat == ObjectFormatSHA256 {
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return githash.ZeroHashSHA256
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}
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return githash.ZeroHash
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}
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// NewHash returns a Hash object after ensuring the input string is correctly
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// encoded.
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func NewHash(h string) (Hash, error) {
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return githash.NewHash(h)
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}
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