about summary refs log tree commit diff
path: root/src/libexpr/get-drvs.hh
blob: 365c66c8d710878481e4a63eb7190d0a4f8289e2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
#pragma once

#include "eval.hh"

#include <string>
#include <map>


namespace nix {


struct DrvInfo
{
public:
    typedef std::map<string, Path> Outputs;

private:
    EvalState * state;

    string drvPath;
    string outPath;
    string outputName;
    Outputs outputs;

    bool failed; // set if we get an AssertionError

    Bindings * attrs, * meta;

    Bindings * getMeta();

    bool checkMeta(Value & v);

public:
    string name;
    string attrPath; /* path towards the derivation */
    string system;

    DrvInfo(EvalState & state) : state(&state), failed(false), attrs(0), meta(0) { };
    DrvInfo(EvalState & state, const string & name, const string & attrPath, const string & system, Bindings * attrs)
        : state(&state), failed(false), attrs(attrs), meta(0), name(name), attrPath(attrPath), system(system) { };

    string queryDrvPath();
    string queryOutPath();
    string queryOutputName();
    Outputs queryOutputs();

    StringSet queryMetaNames();
    Value * queryMeta(const string & name);
    string queryMetaString(const string & name);
    NixInt queryMetaInt(const string & name, NixInt def);
    NixFloat queryMetaFloat(const string & name, NixFloat def);
    bool queryMetaBool(const string & name, bool def);
    void setMeta(const string & name, Value * v);

    /*
    MetaInfo queryMetaInfo(EvalState & state) const;
    MetaValue queryMetaInfo(EvalState & state, const string & name) const;
    */

    void setDrvPath(const string & s)
    {
        drvPath = s;
    }

    void setOutPath(const string & s)
    {
        outPath = s;
    }

    void setFailed() { failed = true; };
    bool hasFailed() { return failed; };
};


#if HAVE_BOEHMGC
typedef list<DrvInfo, traceable_allocator<DrvInfo> > DrvInfos;
#else
typedef list<DrvInfo> DrvInfos;
#endif


/* If value `v' denotes a derivation, store information about the
   derivation in `drv' and return true.  Otherwise, return false. */
bool getDerivation(EvalState & state, Value & v, DrvInfo & drv,
    bool ignoreAssertionFailures);

void getDerivations(EvalState & state, Value & v, const string & pathPrefix,
    Bindings & autoArgs, DrvInfos & drvs,
    bool ignoreAssertionFailures);


}