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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 ) (cherry picked from commit 152c63c)
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{ lib }: | ||
let | ||
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lib = import ./default.nix; | ||
inherit (builtins) attrNames isFunction; | ||
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in | ||
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# snippets that can be shared by multiple fetchers (pkgs/build-support) | ||
{ lib }: | ||
{ | ||
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proxyImpureEnvVars = [ | ||
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# General list operations. | ||
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with import ./trivial.nix; | ||
{ lib }: | ||
with lib.trivial; | ||
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rec { | ||
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{ ...}: | ||
/* List of NixOS maintainers. The format is: | ||
handle = "Real Name <address@example.org>"; | ||
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# Functions for copying sources to the Nix store. | ||
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let lib = import ./default.nix; in | ||
{ lib }: | ||
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rec { | ||
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/* String manipulation functions. */ | ||
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let lib = import ./default.nix; | ||
{ lib }: | ||
let | ||
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inherit (builtins) length; | ||
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