lix/src/libexpr/get-drvs.hh
Eelco Dolstra 4661282fde * `nix-instantiate ... --arg NAME VALUE': allow arguments to be passed
to functions from the command line.
* nix-build: started removing backticks.
2006-07-28 16:03:28 +00:00

57 lines
1.1 KiB
C++

#ifndef __GET_DRVS_H
#define __GET_DRVS_H
#include <string>
#include <map>
#include <boost/shared_ptr.hpp>
#include "eval.hh"
typedef map<string, string> MetaInfo;
struct DrvInfo
{
private:
string drvPath;
string outPath;
public:
string name;
string attrPath; /* path towards the derivation */
string system;
shared_ptr<ATermMap> attrs;
string queryDrvPath(EvalState & state) const;
string queryOutPath(EvalState & state) const;
MetaInfo queryMetaInfo(EvalState & state) const;
void setDrvPath(const string & s)
{
drvPath = s;
}
void setOutPath(const string & s)
{
outPath = s;
}
};
typedef list<DrvInfo> DrvInfos;
/* Evaluate expression `e'. If it evaluates to a derivation, store
information about the derivation in `drv' and return true.
Otherwise, return false. */
bool getDerivation(EvalState & state, Expr e, DrvInfo & drv);
void getDerivations(EvalState & state, Expr e, const string & pathPrefix,
const ATermMap & autoArgs, DrvInfos & drvs);
#endif /* !__GET_DRVS_H */