66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
#ifndef __GET_DRVS_H
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#define __GET_DRVS_H
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#include <string>
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#include <map>
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#include "eval.hh"
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struct DrvInfo
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{
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private:
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string drvPath;
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string outPath;
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public:
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string name;
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string system;
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ATermMap attrs;
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string queryDrvPath(EvalState & state) const
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{
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if (drvPath == "") {
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Expr a = attrs.get("drvPath");
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(string &) drvPath = a ? evalPath(state, a) : "";
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}
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return drvPath;
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}
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string queryOutPath(EvalState & state) const
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{
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if (outPath == "") {
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Expr a = attrs.get("outPath");
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if (!a) throw Error("output path missing");
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(string &) outPath = evalPath(state, a);
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}
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return outPath;
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}
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void setDrvPath(const string & s)
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{
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drvPath = s;
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}
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void setOutPath(const string & s)
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{
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outPath = s;
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}
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};
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typedef list<DrvInfo> DrvInfos;
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/* Evaluate expression `e'. If it evaluates to a derivation, store
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information about the derivation in `drv' and return true.
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Otherwise, return false. */
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bool getDerivation(EvalState & state, Expr e, DrvInfo & drv);
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void getDerivations(EvalState & state, Expr e, DrvInfos & drvs,
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const string & attrPath = "");
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#endif /* !__GET_DRVS_H */
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