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authorGriffin Smith <grfn@gws.fyi>2020-08-09T04·27-0400
committerglittershark <grfn@gws.fyi>2020-08-09T17·26+0000
commitd1653533a6f6f70d1d95001abf3f80665ba135e7 (patch)
tree35c29ccb38f404848eec2969862c6bd0f0671b43 /third_party/nix/src/libutil/hash.cc
parentdfab786653c24b11a8e9338df29c22fd7a0c4959 (diff)
test(tvix): Cover scanForReferences in a test r/1627
Aded a few test cases covering the scanForReferences function, which had
been accidentally broken in 976a36c (which is now partially-reverted).
As part of this, since the test needed to generate hashes for store
paths, the logic in MakeStorePath to compress a sha256 hash down to 20
bytes and convert it to base32 has been extracted to a member function
on the Hash class.

Fixes: #34
Change-Id: Ie2d914688a80f42d0234d351a7cc0714fd15709e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1698
Tested-by: BuildkiteCI
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Diffstat (limited to 'third_party/nix/src/libutil/hash.cc')
-rw-r--r--third_party/nix/src/libutil/hash.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/third_party/nix/src/libutil/hash.cc b/third_party/nix/src/libutil/hash.cc
index 426096e73af8..9d14ad9dfe14 100644
--- a/third_party/nix/src/libutil/hash.cc
+++ b/third_party/nix/src/libutil/hash.cc
@@ -158,6 +158,10 @@ bool Hash::IsValidBase32(absl::string_view s) {
   return true;
 }
 
+std::string Hash::ToStorePathHash() const {
+  return compressHash(*this, kStorePathHashSize).to_string(Base32, false);
+}
+
 static std::string printHash32(const Hash& hash) {
   assert(hash.hashSize);
   size_t len = hash.base32Len();