diff options
| -rw-r--r-- | src/nix/shell.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/nix/shell.cc b/src/nix/shell.cc index 6b3d02b6b..bee0bddcc 100644 --- a/src/nix/shell.cc +++ b/src/nix/shell.cc @@ -232,6 +232,22 @@ struct Common : InstallableCommand, MixProfile struct CmdDevShell : Common, MixEnvironment { + std::vector<std::string> command; + + CmdDevShell() + { + mkFlag() + .longName("command") + .shortName('c') + .description("command and arguments to be executed insted of an interactive shell") + .labels({"command", "args"}) + .arity(ArityAny) + .handler([&](std::vector<std::string> ss) { + if (ss.empty()) throw UsageError("--command requires at least one argument"); + command = ss; + }); + } + std::string description() override { return "run a bash shell that provides the build environment of a derivation"; @@ -270,6 +286,13 @@ struct CmdDevShell : Common, MixEnvironment ss << fmt("rm -f '%s'\n", rcFilePath); + if (!command.empty()) { + std::vector<std::string> args; + for (auto s : command) + args.push_back(shellEscape(s)); + ss << fmt("exec %s\n", concatStringsSep(" ", args)); + } + writeFull(rcFileFd.get(), ss.str()); stopProgressBar(); |