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https://github.com/luxfi/util.git
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zeekayandHanzo Dev
6d2e5fb5c0
Modules declare go 1.27.1 and the build images follow. go fix applied the modernizers; omitzero is not applied, since it changes what the JSON says. Co-authored-by: Hanzo Dev <[email protected]>
42 lines
1022 B
Go
42 lines
1022 B
Go
// Copyright (C) 2022, Lux Industries Inc All rights reserved.
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// See the file LICENSE for licensing terms.
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package utils
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import (
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"crypto/sha256"
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"encoding/hex"
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"fmt"
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"os"
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"strings"
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)
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func GetSHA256FromDisk(binPath string) (string, error) {
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if _, err := os.Stat(binPath); err != nil {
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return "", fmt.Errorf("failed looking up plugin binary at %s: %w", binPath, err)
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}
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hasher := sha256.New()
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s, err := os.ReadFile(binPath)
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if err != nil {
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return "", err
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}
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if _, err := hasher.Write(s); err != nil {
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return "", fmt.Errorf("failed calculating the sha256 hash of the binary %s: %w", binPath, err)
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}
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return hex.EncodeToString(hasher.Sum(nil)), nil
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}
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func SearchSHA256File(file []byte, toSearch string) (string, error) {
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lines := strings.SplitSeq(string(file), "\n")
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for line := range lines {
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sha256Info := strings.Fields(line)
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if len(sha256Info) == 2 {
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if sha256Info[1] == toSearch {
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return sha256Info[0], nil
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}
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}
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}
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return "", fmt.Errorf("%q not found in sha256 file", toSearch)
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}
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