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Add more checks in migration code (#21011) (#21050)

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Backport #21011

When migrating add several more important sanity checks:

* SHAs must be SHAs
* Refs must be valid Refs
* URLs must be reasonable

Signed-off-by: Andrew Thornton <art27@cantab.net>
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zeripath 2022-09-04 14:41:21 +01:00 • committed by GitHub
parent bd1412c3af
commit 3aba72c613
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24 changed files with 714 additions and 302 deletions
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7
modules/git/sha1.go
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@ -19,7 +19,12 @@ const EmptySHA = "0000000000000000000000000000000000000000"
const EmptyTreeSHA = "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
// SHAPattern can be used to determine if a string is an valid sha
var SHAPattern = regexp.MustCompile(`^[0-9a-f]{4,40}$`)
var shaPattern = regexp.MustCompile(`^[0-9a-f]{4,40}$`)
// IsValidSHAPattern will check if the provided string matches the SHA Pattern
func IsValidSHAPattern(sha string) bool {
return shaPattern.MatchString(sha)
}
// MustID always creates a new SHA1 from a [20]byte array with no validation of input.
func MustID(b []byte) SHA1 {