blob: 51c16f5a9a34eb13026c23906b98fd0ab9992b4e (
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
|
#include "command.hh"
#include "shared.hh"
#include "eval.hh"
#include "attr-path.hh"
#include "progress-bar.hh"
#include <unistd.h>
using namespace nix;
struct CmdEdit : InstallableCommand
{
std::string description() override
{
return "open the Nix expression of a Nix package in $EDITOR";
}
Examples examples() override
{
return {
Example{
"To open the Nix expression of the GNU Hello package:",
"nix edit nixpkgs#hello"
},
};
}
Category category() override { return catSecondary; }
void run(ref<Store> store) override
{
auto state = getEvalState();
auto [v, pos] = installable->toValue(*state);
try {
pos = findDerivationFilename(*state, *v, installable->what());
} catch (NoPositionInfo &) {
}
if (pos == noPos)
throw Error("cannot find position information for '%s", installable->what());
stopProgressBar();
auto args = editorFor(pos);
restoreSignals();
execvp(args.front().c_str(), stringsToCharPtrs(args).data());
std::string command;
for (const auto &arg : args) command += " '" + arg + "'";
throw SysError("cannot run command%s", command);
}
};
static auto rCmdEdit = registerCommand<CmdEdit>("edit");
|
