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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#include "command.hh"
#include "globals.hh"
#include "eval.hh"
#include "eval-inline.hh"
#include "names.hh"
#include "get-drvs.hh"
#include "common-args.hh"
#include "json.hh"
#include <regex>
using namespace nix;
std::string hilite(const std::string & s, const std::smatch & m)
{
return
m.empty()
? s
: std::string(m.prefix())
+ ANSI_RED + std::string(m.str()) + ANSI_NORMAL
+ std::string(m.suffix());
}
struct CmdSearch : SourceExprCommand, MixJSON
{
std::string re;
CmdSearch()
{
expectArg("regex", &re, true);
}
std::string name() override
{
return "search";
}
std::string description() override
{
return "query available packages";
}
void run(ref<Store> store) override
{
settings.readOnlyMode = true;
std::regex regex(re, std::regex::extended | std::regex::icase);
auto state = getEvalState();
std::function<void(Value *, std::string, bool)> doExpr;
bool first = true;
auto jsonOut = json ? std::make_unique<JSONObject>(std::cout, true) : nullptr;
doExpr = [&](Value * v, std::string attrPath, bool toplevel) {
debug("at attribute ‘%s’", attrPath);
try {
state->forceValue(*v);
if (v->type == tLambda && toplevel) {
Value * v2 = state->allocValue();
state->autoCallFunction(*state->allocBindings(1), *v, *v2);
v = v2;
state->forceValue(*v);
}
if (state->isDerivation(*v)) {
DrvInfo drv(*state, attrPath, v->attrs);
DrvName parsed(drv.queryName());
std::smatch attrPathMatch;
std::regex_search(attrPath, attrPathMatch, regex);
auto name = parsed.name;
std::smatch nameMatch;
std::regex_search(name, nameMatch, regex);
std::string description = drv.queryMetaString("description");
std::replace(description.begin(), description.end(), '\n', ' ');
std::smatch descriptionMatch;
std::regex_search(description, descriptionMatch, regex);
if (!attrPathMatch.empty()
|| !nameMatch.empty()
|| !descriptionMatch.empty())
{
if (json) {
auto jsonElem = jsonOut->object(attrPath);
jsonElem.attr("pkgName", parsed.name);
jsonElem.attr("version", parsed.version);
jsonElem.attr("description", description);
} else {
if (!first) std::cout << "\n";
first = false;
std::cout << fmt(
"Attribute name: %s\n"
"Package name: %s\n"
"Version: %s\n"
"Description: %s\n",
hilite(attrPath, attrPathMatch),
hilite(name, nameMatch),
parsed.version,
hilite(description, descriptionMatch));
}
}
}
else if (v->type == tAttrs) {
if (!toplevel) {
auto attrs = v->attrs;
Bindings::iterator j = attrs->find(state->symbols.create("recurseForDerivations"));
if (j == attrs->end() || !state->forceBool(*j->value, *j->pos)) return;
}
Bindings::iterator j = v->attrs->find(state->symbols.create("_toplevel"));
bool toplevel2 = j != v->attrs->end() && state->forceBool(*j->value, *j->pos);
for (auto & i : *v->attrs) {
doExpr(i.value,
attrPath == "" ? (std::string) i.name : attrPath + "." + (std::string) i.name,
toplevel2);
}
}
} catch (AssertionError & e) {
}
};
doExpr(getSourceExpr(*state), "", true);
}
};
static RegisterCommand r1(make_ref<CmdSearch>());
|
