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author | Graham Christensen <graham@grahamc.com> | 2017-07-28 20:05:35 -0400 |
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committer | Graham Christensen <graham@grahamc.com> | 2017-09-16 21:36:43 -0400 |
commit | 152c63c9ff82276e225ac4a4fa71c791d33e443d (patch) | |
tree | 0755fd329430e64c6eacfdf4d45e75693ea824ae /lib/systems | |
parent | 4d205eb0444996b1939ab9e495201912a3316b36 (diff) | |
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Convert libs to a fixed-point
This does break the API of being able to import any lib file and get its libs, however I'm not sure people did this. I made this while exploring being able to swap out docFn with a stub in #2305, to avoid functor performance problems. I don't know if that is going to move forward (or if it is a problem or not,) but after doing all this work figured I'd put it up anyway :) Two notable advantages to this approach: 1. when a lib inherits another lib's functions, it doesn't automatically get put in to the scope of lib 2. when a lib implements a new obscure functions, it doesn't automatically get put in to the scope of lib Using the test script (later in this commit) I got the following diff on the API: + diff master fixed-lib 11764a11765,11766 > .types.defaultFunctor > .types.defaultTypeMerge 11774a11777,11778 > .types.isOptionType > .types.isType 11781a11786 > .types.mkOptionType 11788a11794 > .types.setType 11795a11802 > .types.types This means that this commit _adds_ to the API, however I can't find a way to fix these last remaining discrepancies. At least none are _removed_. Test script (run with nix-repl in the PATH): #!/bin/sh set -eux repl() { suff=${1:-} echo "(import ./lib)$suff" \ | nix-repl 2>&1 } attrs_to_check() { repl "${1:-}" \ | tr ';' $'\n' \ | grep "\.\.\." \ | cut -d' ' -f2 \ | sed -e "s/^/${1:-}./" \ | sort } summ() { repl "${1:-}" \ | tr ' ' $'\n' \ | sort \ | uniq } deep_summ() { suff="${1:-}" depth="${2:-4}" depth=$((depth - 1)) summ "$suff" for attr in $(attrs_to_check "$suff" | grep -v "types.types"); do if [ $depth -eq 0 ]; then summ "$attr" | sed -e "s/^/$attr./" else deep_summ "$attr" "$depth" | sed -e "s/^/$attr./" fi done } ( cd nixpkgs #git add . #git commit -m "Auto-commit, sorry" || true git checkout fixed-lib deep_summ > ../fixed-lib git checkout master deep_summ > ../master ) if diff master fixed-lib; then echo "SHALLOW MATCH!" fi ( cd nixpkgs git checkout fixed-lib repl .types )
Diffstat (limited to 'lib/systems')
-rw-r--r-- | lib/systems/default.nix | 13 | ||||
-rw-r--r-- | lib/systems/doubles.nix | 9 | ||||
-rw-r--r-- | lib/systems/examples.nix | 4 | ||||
-rw-r--r-- | lib/systems/inspect.nix | 7 | ||||
-rw-r--r-- | lib/systems/parse.nix | 11 | ||||
-rw-r--r-- | lib/systems/platforms.nix | 1 |
6 files changed, 24 insertions, 21 deletions
diff --git a/lib/systems/default.nix b/lib/systems/default.nix index c22c9956196..22166f611f9 100644 --- a/lib/systems/default.nix +++ b/lib/systems/default.nix @@ -1,11 +1,12 @@ -let inherit (import ../attrsets.nix) mapAttrs; in +{ lib }: + let inherit (lib.attrsets) mapAttrs; in rec { - doubles = import ./doubles.nix; - parse = import ./parse.nix; - inspect = import ./inspect.nix; - platforms = import ./platforms.nix; - examples = import ./examples.nix; + doubles = import ./doubles.nix { inherit lib; }; + parse = import ./parse.nix { inherit lib; }; + inspect = import ./inspect.nix { inherit lib; }; + platforms = import ./platforms.nix { inherit lib; }; + examples = import ./examples.nix { inherit lib; }; # Elaborate a `localSystem` or `crossSystem` so that it contains everything # necessary. diff --git a/lib/systems/doubles.nix b/lib/systems/doubles.nix index ac1a199d80c..0cae8ec56fd 100644 --- a/lib/systems/doubles.nix +++ b/lib/systems/doubles.nix @@ -1,8 +1,9 @@ +{ lib }: let - lists = import ../lists.nix; - parse = import ./parse.nix; - inherit (import ./inspect.nix) predicates; - inherit (import ../attrsets.nix) matchAttrs; + inherit (lib) lists; + parse = import ./parse.nix { inherit lib; }; + inherit (import ./inspect.nix { inherit lib; }) predicates; + inherit (lib.attrsets) matchAttrs; all = [ "aarch64-linux" diff --git a/lib/systems/examples.nix b/lib/systems/examples.nix index e394f43831c..ff2273febcb 100644 --- a/lib/systems/examples.nix +++ b/lib/systems/examples.nix @@ -1,8 +1,8 @@ # These can be passed to nixpkgs as either the `localSystem` or # `crossSystem`. They are put here for user convenience, but also used by cross # tests and linux cross stdenv building, so handle with care! - -let platforms = import ./platforms.nix; in +{ lib }: +let platforms = import ./platforms.nix { inherit lib; }; in rec { # diff --git a/lib/systems/inspect.nix b/lib/systems/inspect.nix index 2d5353341f5..a4fa9af4e0a 100644 --- a/lib/systems/inspect.nix +++ b/lib/systems/inspect.nix @@ -1,6 +1,7 @@ -with import ./parse.nix; -with import ../attrsets.nix; -with import ../lists.nix; +{ lib }: +with import ./parse.nix { inherit lib; }; +with lib.attrsets; +with lib.lists; rec { patterns = rec { diff --git a/lib/systems/parse.nix b/lib/systems/parse.nix index 438d83685db..d14ca04bfb9 100644 --- a/lib/systems/parse.nix +++ b/lib/systems/parse.nix @@ -4,14 +4,13 @@ # http://llvm.org/docs/doxygen/html/Triple_8cpp_source.html especially # Triple::normalize. Parsing should essentially act as a more conservative # version of that last function. - -with import ../lists.nix; -with import ../types.nix; -with import ../attrsets.nix; -with (import ./inspect.nix).predicates; +{ lib }: +with lib.lists; +with lib.types; +with lib.attrsets; +with (import ./inspect.nix { inherit lib; }).predicates; let - lib = import ../default.nix; setTypesAssert = type: pred: mapAttrs (name: value: assert pred value; diff --git a/lib/systems/platforms.nix b/lib/systems/platforms.nix index 54ed8f3c12c..7aeb4d88e51 100644 --- a/lib/systems/platforms.nix +++ b/lib/systems/platforms.nix @@ -1,3 +1,4 @@ +{ lib }: rec { pcBase = { name = "pc"; |