* Refactoring: move dump function into archive.cc.

src/hash.hh

@@ -47,55 +47,9 @@ Hash hashString(const string & s);
 Hash hashFile(const string & fileName);
 
 /* Compute the hash of the given path.  The hash is defined as
-   follows:
-
-   hash(path) = md5(dump(path))
+   md5(dump(path)).
 */
 Hash hashPath(const string & path);
 
 
-/* Dump a path as follows:
-
-   IF path points to a REGULAR FILE:
-     dump(path) = attrs(
-       [ ("type", "regular")
-       , ("contents", contents(path))
-       ])
-
-   IF path points to a DIRECTORY:
-     dump(path) = attrs(
-       [ ("type", "directory")
-       , ("entries", concat(map(f, sort(entries(path)))))
-       ])
-       where f(fn) = attrs(
-         [ ("name", fn)
-         , ("file", dump(path + "/" + fn))
-         ])
-
-   where:
-
-     attrs(as) = concat(map(attr, as)) + encN(0) 
-     attrs((a, b)) = encS(a) + encS(b)
-
-     encS(s) = encN(len(s)) + s + (padding until next 64-bit boundary)
-
-     encN(n) = 64-bit little-endian encoding of n.
-
-     contents(path) = the contents of a regular file.
-
-     sort(strings) = lexicographic sort by 8-bit value (strcmp).
-
-     entries(path) = the entries of a directory, without `.' and
-     `..'.
-
-     `+' denotes string concatenation. */
-
-struct DumpSink 
-{
-    virtual void operator () (const unsigned char * data, unsigned int len) = 0;
-};
-
-void dumpPath(const string & path, DumpSink & sink);
-
-
 #endif /* !__HASH_H */