Crypto: Refactor hash computation

... by renaming HashGenerator to (incremental) Hasher and
dropping support for Git/MD5 hashes. The Hasher does not
expose the actual hash implementation.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/buildtool/crypto/hasher.cpp b/src/buildtool/crypto/hasher.cpp
new file mode 100644
index 00000000..6f432679
--- /dev/null
+++ b/src/buildtool/crypto/hasher.cpp
@@ -0,0 +1,14 @@
+#include "src/buildtool/crypto/hasher.hpp"
+
+#include "src/buildtool/crypto/hash_impl_sha1.hpp"
+#include "src/buildtool/crypto/hash_impl_sha256.hpp"
+
+auto Hasher::CreateHashImpl(HashType type) noexcept
+    -> std::unique_ptr<IHashImpl> {
+    switch (type) {
+        case HashType::SHA1:
+            return CreateHashImplSha1();
+        case HashType::SHA256:
+            return CreateHashImplSha256();
+    }
+}