5 commits

Author	SHA1	Message	Date
Eelco Dolstra	7ba0f98e64	nix dev-shell: Less purity	2019-05-02 21:28:52 +02:00
Eelco Dolstra	8ec77614f6	Move createTempFile to libutil	2019-05-02 21:28:41 +02:00
Eelco Dolstra	dea18ff999	nix dev-shell: Execute shellHook	2019-05-02 21:13:19 +02:00
Eelco Dolstra	2919c496ea	nix dev-shell: Use 'provides.devShell' by default ... Thus $ nix dev-shell will now build the 'provides.devShell' attribute from the flake in the current directory. If it doesn't exist, it falls back to 'provides.defaultPackage'.	2019-05-02 21:10:13 +02:00
Eelco Dolstra	2b8c63f303	Add 'nix dev-shell' and 'nix print-dev-env' command ... 'nix dev-shell' is intended to replace nix-shell. It supports flakes, e.g. $ nix dev-shell nixpkgs:hello starts a bash shell providing an environment for building 'hello'. Like Lorri (and unlike nix-shell), it computes the build environment by building a modified top-level derivation that writes the environment after running $stdenv/setup to $out and exits. This provides some caching, so it's faster than nix-shell in some cases (especially for packages with lots of dependencies, where the setup script takes a long time). There also is a command 'nix print-dev-env' that prints out shell code for setting up the build environment in an existing shell, e.g. $ . <(nix print-dev-env nixpkgs:hello) https://github.com/tweag/nix/issues/21	2019-05-02 20:22:14 +02:00