33 lines
784 B
Go
33 lines
784 B
Go
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package nixhash
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import (
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"crypto/sha256"
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"encoding/hex"
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"sort"
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"strings"
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"github.com/numtide/go-nix/nixbase32"
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)
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func StorePathForText(name, s, storePath string, references []string) string {
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strHash := sha256.Sum256([]byte(s))
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sort.Strings(references)
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var typeStrBuilder strings.Builder
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typeStrBuilder.WriteString("text")
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for _, ref := range references {
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typeStrBuilder.WriteString(":")
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typeStrBuilder.WriteString(ref)
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}
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typeStr := typeStrBuilder.String()
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sStr := typeStr + ":sha256:" + hex.EncodeToString(strHash[:]) + ":" + storePath + ":" + name
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sHash := sha256.Sum256([]byte(sStr))
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sCompressedHash := make([]byte, 20)
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for i := range sHash {
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sCompressedHash[i%len(sCompressedHash)] ^= sHash[i]
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}
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return nixbase32.EncodeToString(sCompressedHash[:])
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}
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