diff options
| author | Matthew Bauer <mjbauer95@gmail.com> | 2019-06-04 11:10:03 -0400 |
|---|---|---|
| committer | Matthew Bauer <mjbauer95@gmail.com> | 2019-06-04 11:17:25 -0400 |
| commit | 635b7625690d9f8f61da0a187e7ed4a7ec274fdc (patch) | |
| tree | 80c1dc0918f028b38aa23b3abdae327fc24550dc | |
| parent | 40271ae1382b14673b7b3f9edb6c1f9bba1bbe47 (diff) | |
systems: allow passing in string for cross/localSystem
This makes things a little bit more convenient. Just pass in like:
$ nix-build ’<nixpkgs>’ -A hello --argstr localSystem x86_64-linux --argstr crossSystem aarch64-linux
| -rw-r--r-- | lib/systems/default.nix | 4 | ||||
| -rw-r--r-- | pkgs/top-level/default.nix | 4 | ||||
| -rw-r--r-- | pkgs/top-level/impure.nix | 5 |
3 files changed, 8 insertions, 5 deletions
diff --git a/lib/systems/default.nix b/lib/systems/default.nix index ea18904cc635..8aa413f53817 100644 --- a/lib/systems/default.nix +++ b/lib/systems/default.nix @@ -14,7 +14,9 @@ rec { # `parsed` is inferred from args, both because there are two options with one # clearly prefered, and to prevent cycles. A simpler fixed point where the RHS # always just used `final.*` would fail on both counts. - elaborate = args: let + elaborate = args': let + args = if lib.isString args' then { system = args'; } + else args'; final = { # Prefer to parse `config` as it is strictly more informative. parsed = parse.mkSystemFromString (if args ? config then args.config else args.system); diff --git a/pkgs/top-level/default.nix b/pkgs/top-level/default.nix index b6de076a570c..904ef8d39796 100644 --- a/pkgs/top-level/default.nix +++ b/pkgs/top-level/default.nix @@ -57,11 +57,11 @@ in let # From a minimum of `system` or `config` (actually a target triple, *not* # nixpkgs configuration), infer the other one and platform as needed. - localSystem = lib.systems.elaborate ( + localSystem = lib.systems.elaborate (if builtins.isAttrs args.localSystem then ( # Allow setting the platform in the config file. This take precedence over # the inferred platform, but not over an explicitly passed-in one. builtins.intersectAttrs { platform = null; } config1 - // args.localSystem); + // args.localSystem) else args.localSystem); crossSystem = if crossSystem0 == null then localSystem else lib.systems.elaborate crossSystem0; diff --git a/pkgs/top-level/impure.nix b/pkgs/top-level/impure.nix index da288f15d2e2..3ba6c08a140b 100644 --- a/pkgs/top-level/impure.nix +++ b/pkgs/top-level/impure.nix @@ -85,6 +85,7 @@ import ./. (builtins.removeAttrs args [ "system" "platform" ] // { inherit config overlays crossSystem crossOverlays; # Fallback: Assume we are building packages on the current (build, in GNU # Autotools parlance) system. - localSystem = (if args ? localSystem then {} - else { system = builtins.currentSystem; }) // localSystem; + localSystem = if builtins.isString localSystem then localSystem + else (if args ? localSystem then {} + else { system = builtins.currentSystem; }) // localSystem; }) |