1 files changed, 56 insertions, 75 deletions
diff --git a/third_party/nix/src/libutil/hash.hh b/third_party/nix/src/libutil/hash.hh
index 2dbc3b630814..a9002023fa31 100644
--- a/third_party/nix/src/libutil/hash.hh
+++ b/third_party/nix/src/libutil/hash.hh
@@ -1,18 +1,14 @@
 #pragma once
 
-#include "types.hh"
 #include "serialise.hh"
-
+#include "types.hh"
 
 namespace nix {
 
-
 MakeError(BadHash, Error);
 
-
 enum HashType : char { htUnknown, htMD5, htSHA1, htSHA256, htSHA512 };
 
-
 const int md5HashSize = 16;
 const int sha1HashSize = 20;
 const int sha256HashSize = 32;
@@ -22,110 +18,95 @@ extern const string base32Chars;
 
 enum Base : int { Base64, Base32, Base16, SRI };
 
+struct Hash {
+  static const unsigned int maxHashSize = 64;
+  unsigned int hashSize = 0;
+  unsigned char hash[maxHashSize] = {};
 
-struct Hash
-{
-    static const unsigned int maxHashSize = 64;
-    unsigned int hashSize = 0;
-    unsigned char hash[maxHashSize] = {};
-
-    HashType type = htUnknown;
+  HashType type = htUnknown;
 
-    /* Create an unset hash object. */
-    Hash() { };
+  /* Create an unset hash object. */
+  Hash(){};
 
-    /* Create a zero-filled hash object. */
-    Hash(HashType type) : type(type) { init(); };
+  /* Create a zero-filled hash object. */
+  Hash(HashType type) : type(type) { init(); };
 
-    /* Initialize the hash from a string representation, in the format
-       "[<type>:]<base16|base32|base64>" or "<type>-<base64>" (a
-       Subresource Integrity hash expression). If the 'type' argument
-       is htUnknown, then the hash type must be specified in the
-       string. */
-    Hash(const std::string & s, HashType type = htUnknown);
+  /* Initialize the hash from a string representation, in the format
+     "[<type>:]<base16|base32|base64>" or "<type>-<base64>" (a
+     Subresource Integrity hash expression). If the 'type' argument
+     is htUnknown, then the hash type must be specified in the
+     string. */
+  Hash(const std::string& s, HashType type = htUnknown);
 
-    void init();
+  void init();
 
-    /* Check whether a hash is set. */
-    operator bool () const { return type != htUnknown; }
+  /* Check whether a hash is set. */
+  operator bool() const { return type != htUnknown; }
 
-    /* Check whether two hash are equal. */
-    bool operator == (const Hash & h2) const;
+  /* Check whether two hash are equal. */
+  bool operator==(const Hash& h2) const;
 
-    /* Check whether two hash are not equal. */
-    bool operator != (const Hash & h2) const;
+  /* Check whether two hash are not equal. */
+  bool operator!=(const Hash& h2) const;
 
-    /* For sorting. */
-    bool operator < (const Hash & h) const;
+  /* For sorting. */
+  bool operator<(const Hash& h) const;
 
-    /* Returns the length of a base-16 representation of this hash. */
-    size_t base16Len() const
-    {
-        return hashSize * 2;
-    }
+  /* Returns the length of a base-16 representation of this hash. */
+  size_t base16Len() const { return hashSize * 2; }
 
-    /* Returns the length of a base-32 representation of this hash. */
-    size_t base32Len() const
-    {
-        return (hashSize * 8 - 1) / 5 + 1;
-    }
+  /* Returns the length of a base-32 representation of this hash. */
+  size_t base32Len() const { return (hashSize * 8 - 1) / 5 + 1; }
 
-    /* Returns the length of a base-64 representation of this hash. */
-    size_t base64Len() const
-    {
-        return ((4 * hashSize / 3) + 3) & ~3;
-    }
+  /* Returns the length of a base-64 representation of this hash. */
+  size_t base64Len() const { return ((4 * hashSize / 3) + 3) & ~3; }
 
-    /* Return a string representation of the hash, in base-16, base-32
-       or base-64. By default, this is prefixed by the hash type
-       (e.g. "sha256:"). */
-    std::string to_string(Base base = Base32, bool includeType = true) const;
+  /* Return a string representation of the hash, in base-16, base-32
+     or base-64. By default, this is prefixed by the hash type
+     (e.g. "sha256:"). */
+  std::string to_string(Base base = Base32, bool includeType = true) const;
 };
 
-
 /* Print a hash in base-16 if it's MD5, or base-32 otherwise. */
-string printHash16or32(const Hash & hash);
+string printHash16or32(const Hash& hash);
 
 /* Compute the hash of the given string. */
-Hash hashString(HashType ht, const string & s);
+Hash hashString(HashType ht, const string& s);
 
 /* Compute the hash of the given file. */
-Hash hashFile(HashType ht, const Path & path);
+Hash hashFile(HashType ht, const Path& path);
 
 /* Compute the hash of the given path.  The hash is defined as
    (essentially) hashString(ht, dumpPath(path)). */
 typedef std::pair<Hash, unsigned long long> HashResult;
-HashResult hashPath(HashType ht, const Path & path,
-    PathFilter & filter = defaultPathFilter);
+HashResult hashPath(HashType ht, const Path& path,
+                    PathFilter& filter = defaultPathFilter);
 
 /* Compress a hash to the specified number of bytes by cyclically
    XORing bytes together. */
-Hash compressHash(const Hash & hash, unsigned int newSize);
+Hash compressHash(const Hash& hash, unsigned int newSize);
 
 /* Parse a string representing a hash type. */
-HashType parseHashType(const string & s);
+HashType parseHashType(const string& s);
 
 /* And the reverse. */
 string printHashType(HashType ht);
 
-
 union Ctx;
 
-class HashSink : public BufferedSink
-{
-private:
-    HashType ht;
-    Ctx * ctx;
-    unsigned long long bytes;
-
-public:
-    HashSink(HashType ht);
-    HashSink(const HashSink & h);
-    ~HashSink();
-    void write(const unsigned char * data, size_t len);
-    HashResult finish();
-    HashResult currentHash();
+class HashSink : public BufferedSink {
+ private:
+  HashType ht;
+  Ctx* ctx;
+  unsigned long long bytes;
+
+ public:
+  HashSink(HashType ht);
+  HashSink(const HashSink& h);
+  ~HashSink();
+  void write(const unsigned char* data, size_t len);
+  HashResult finish();
+  HashResult currentHash();
 };
 
-
-}
+}  // namespace nix