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Merge pull request #6376 from Uthar/master

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don't assume that rev is a SHA1 hash
This commit is contained in:
Théophane Hufschmitt 2022-04-08 17:56:27 +02:00 committed by GitHub
commit 646af7325d
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3 changed files with 13 additions and 6 deletions
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15
src/libfetchers/fetchers.cc
View file

@ -238,9 +238,18 @@ std::optional<std::string> Input::getRef() const
std::optional<Hash> Input::getRev() const
{
if (auto s = maybeGetStrAttr(attrs, "rev"))
return Hash::parseAny(*s, htSHA1);
return {};
std::optional<Hash> hash = {};
if (auto s = maybeGetStrAttr(attrs, "rev")) {
try {
hash = Hash::parseAnyPrefixed(*s);
} catch (BadHash &e) {
// Default to sha1 for backwards compatibility with existing flakes
hash = Hash::parseAny(*s, htSHA1);
}
}
return hash;
}
std::optional<uint64_t> Input::getRevCount() const

2
src/libutil/hash.cc
View file

@ -155,7 +155,7 @@ static std::pair<std::optional<HashType>, bool> getParsedTypeAndSRI(std::string_
{
bool isSRI = false;
// Parse the has type before the separater, if there was one.
// Parse the hash type before the separator, if there was one.
std::optional<HashType> optParsedType;
{
auto hashRaw = splitPrefixTo(rest, ':');

2
src/libutil/hash.hh
View file

@ -93,13 +93,11 @@ public:
std::string gitRev() const
{
assert(type == htSHA1);
return to_string(Base16, false);
}
std::string gitShortRev() const
{
assert(type == htSHA1);
return std::string(to_string(Base16, false), 0, 7);
}