mirror of
https://github.com/letic/terraform-provider-google.git
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961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
package uuid
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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)
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// GenerateRandomBytes is used to generate random bytes of given size.
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func GenerateRandomBytes(size int) ([]byte, error) {
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buf := make([]byte, size)
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if _, err := rand.Read(buf); err != nil {
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return nil, fmt.Errorf("failed to read random bytes: %v", err)
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}
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return buf, nil
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}
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// GenerateUUID is used to generate a random UUID
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func GenerateUUID() (string, error) {
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buf, err := GenerateRandomBytes(16)
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if err != nil {
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return "", err
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}
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return FormatUUID(buf)
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}
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func FormatUUID(buf []byte) (string, error) {
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if len(buf) != 16 {
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return "", fmt.Errorf("wrong length byte slice (%d)", len(buf))
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}
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return fmt.Sprintf("%08x-%04x-%04x-%04x-%12x",
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buf[0:4],
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buf[4:6],
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buf[6:8],
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buf[8:10],
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buf[10:16]), nil
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}
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func ParseUUID(uuid string) ([]byte, error) {
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if len(uuid) != 36 {
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return nil, fmt.Errorf("uuid string is wrong length")
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}
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hyph := []byte("-")
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if uuid[8] != hyph[0] ||
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uuid[13] != hyph[0] ||
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uuid[18] != hyph[0] ||
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uuid[23] != hyph[0] {
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return nil, fmt.Errorf("uuid is improperly formatted")
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}
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hexStr := uuid[0:8] + uuid[9:13] + uuid[14:18] + uuid[19:23] + uuid[24:36]
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ret, err := hex.DecodeString(hexStr)
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if err != nil {
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return nil, err
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}
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if len(ret) != 16 {
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return nil, fmt.Errorf("decoded hex is the wrong length")
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}
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return ret, nil
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}
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