blob: eeee1e52926a478baa58c3876fc73569bf9861d8 (
plain)
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
|
#include "command.hh"
#include "store-api.hh"
#include "fs-accessor.hh"
#include "nar-accessor.hh"
using namespace nix;
struct MixCat : virtual Args
{
std::string path;
void cat(ref<FSAccessor> accessor)
{
auto st = accessor->stat(path);
if (st.type == FSAccessor::Type::tMissing)
throw Error(format("path '%1%' does not exist") % path);
if (st.type != FSAccessor::Type::tRegular)
throw Error(format("path '%1%' is not a regular file") % path);
std::cout << accessor->readFile(path);
}
};
struct CmdCatStore : StoreCommand, MixCat
{
CmdCatStore()
{
expectPathArg("path", &path);
}
std::string description() override
{
return "print the contents of a file in the Nix store on stdout";
}
Category category() override { return catUtility; }
void run(ref<Store> store) override
{
cat(store->getFSAccessor());
}
};
struct CmdCatNar : StoreCommand, MixCat
{
Path narPath;
CmdCatNar()
{
expectPathArg("nar", &narPath);
expectArg("path", &path);
}
std::string description() override
{
return "print the contents of a file inside a NAR file on stdout";
}
Category category() override { return catUtility; }
void run(ref<Store> store) override
{
cat(makeNarAccessor(make_ref<std::string>(readFile(narPath))));
}
};
static auto r1 = registerCommand<CmdCatStore>("cat-store");
static auto r2 = registerCommand<CmdCatNar>("cat-nar");
|
