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#ifndef __STORE_H
#define __STORE_H
#include <string>
#include "hash.hh"
using namespace std;
typedef Hash FSId;
/* Copy a path recursively. */
void copyPath(string src, string dst);
/* Register a substitute. */
void registerSubstitute(const FSId & srcId, const FSId & subId);
/* Register a path keyed on its id. */
void registerPath(const string & path, const FSId & id);
/* Return a path whose contents have the given hash. If target is
not empty, ensure that such a path is realised in target (if
necessary by copying from another location). If prefix is not
empty, only return a path that is an descendent of prefix. */
string expandId(const FSId & id, const string & target = "",
const string & prefix = "/");
/* Copy a file to the nixStore directory and register it in dbRefs.
Return the hash code of the value. */
void addToStore(string srcPath, string & dstPath, FSId & id,
bool deterministicName = false);
/* Delete a value from the nixStore directory. */
void deleteFromStore(const string & path);
#endif /* !__STORE_H */
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