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nixpkgs/lib/default.nix

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/lib/default.nix: Add file docstring & unit test hint
2017-03-30 23:03:40 +03:00
/* Library of low-level helper functions for nix expressions.
*
* Please implement (mostly) exhaustive unit tests
* for new functions in `./tests.nix'.
*/
lib/default.nix: reorder imports for clarity Group imports according to the kind of functions they contain, in a more descriptive manner.
2016-09-15 02:21:42 +03:00
let
* Put utility functions like fold in lib/default.nix. svn path=/nixpkgs/trunk/; revision=6605
2006-09-25 14:07:59 +04:00
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 )
2017-07-29 03:05:35 +03:00
callLibs = file: import file { inherit lib; };
lib = rec {
# often used, or depending on very little
trivial = callLibs ./trivial.nix;
fixedPoints = callLibs ./fixed-points.nix;
# datatypes
attrsets = callLibs ./attrsets.nix;
lists = callLibs ./lists.nix;
strings = callLibs ./strings.nix;
stringsWithDeps = callLibs ./strings-with-deps.nix;
# packaging
customisation = callLibs ./customisation.nix;
maintainers = callLibs ./maintainers.nix;
meta = callLibs ./meta.nix;
sources = callLibs ./sources.nix;
# module system
modules = callLibs ./modules.nix;
options = callLibs ./options.nix;
types = callLibs ./types.nix;
# constants
licenses = callLibs ./licenses.nix;
systems = callLibs ./systems;
# misc
debug = callLibs ./debug.nix;
generators = callLibs ./generators.nix;
misc = callLibs ./deprecated.nix;
# domain-specific
sandbox = callLibs ./sandbox.nix;
fetchers = callLibs ./fetchers.nix;
# Eval-time filesystem handling
filesystem = callLibs ./filesystem.nix;
lib: Collect system/platform related files Previously, platforms was a random thing in top-level
2017-02-09 05:27:22 +03:00
# back-compat aliases
platforms = systems.doubles;
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 )
2017-07-29 03:05:35 +03:00
inherit (builtins) add addErrorContext attrNames
concatLists deepSeq elem elemAt filter genericClosure genList
getAttr hasAttr head isAttrs isBool isFunction isInt isList
isString length lessThan listToAttrs pathExists readFile
replaceStrings seq stringLength sub substring tail;
inherit (trivial) id const concat or and boolToString mergeAttrs
flip mapNullable inNixShell min max importJSON warn info
nixpkgsVersion mod;
inherit (fixedPoints) fix fix' extends composeExtensions
Revert "Fix evaluation" Reverting #27319 This reverts commit 751d397ad486a84b93907345124f550e3b32427c.
2017-09-29 16:10:48 +03:00
makeExtensible makeExtensibleWithCustomName;
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 )
2017-07-29 03:05:35 +03:00
inherit (attrsets) attrByPath hasAttrByPath setAttrByPath
getAttrFromPath attrVals attrValues catAttrs filterAttrs
filterAttrsRecursive foldAttrs collect nameValuePair mapAttrs
mapAttrs' mapAttrsToList mapAttrsRecursive mapAttrsRecursiveCond
genAttrs isDerivation toDerivation optionalAttrs
zipAttrsWithNames zipAttrsWith zipAttrs recursiveUpdateUntil
recursiveUpdate matchAttrs overrideExisting getOutput getBin
getLib getDev chooseDevOutputs zipWithNames zip;
inherit (lists) singleton foldr fold foldl foldl' imap0 imap1
concatMap flatten remove findSingle findFirst any all count
optional optionals toList range partition zipListsWith zipLists
reverseList listDfs toposort sort take drop sublist last init
crossLists unique intersectLists subtractLists
mutuallyExclusive;
inherit (strings) concatStrings concatMapStrings concatImapStrings
intersperse concatStringsSep concatMapStringsSep
concatImapStringsSep makeSearchPath makeSearchPathOutput
makeLibraryPath makeBinPath makePerlPath optionalString
hasPrefix hasSuffix stringToCharacters stringAsChars escape
escapeShellArg escapeShellArgs replaceChars lowerChars upperChars
toLower toUpper addContextFrom splitString removePrefix
removeSuffix versionOlder versionAtLeast getVersion nameFromURL
enableFeature fixedWidthString fixedWidthNumber isStorePath
toInt readPathsFromFile fileContents;
inherit (stringsWithDeps) textClosureList textClosureMap
noDepEntry fullDepEntry packEntry stringAfter;
inherit (customisation) overrideDerivation makeOverridable
Revert "Fix tarball" Reverting #27319 This reverts commit 9ce7175cfe9edf5f7eb9a9f299807047a4feeaf1.
2017-09-29 16:10:30 +03:00
callPackageWith callPackagesWith addPassthru hydraJob makeScope;
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 )
2017-07-29 03:05:35 +03:00
inherit (meta) addMetaAttrs dontDistribute setName updateName
appendToName mapDerivationAttrset lowPrio lowPrioSet hiPrio
hiPrioSet;
inherit (sources) pathType pathIsDirectory cleanSourceFilter
cleanSource sourceByRegex sourceFilesBySuffices
commitIdFromGitRepo;
inherit (modules) evalModules closeModules unifyModuleSyntax
applyIfFunction unpackSubmodule packSubmodule mergeModules
mergeModules' mergeOptionDecls evalOptionValue mergeDefinitions
pushDownProperties dischargeProperties filterOverrides
sortProperties fixupOptionType mkIf mkAssert mkMerge mkOverride
mkOptionDefault mkDefault mkForce mkVMOverride mkStrict
mkFixStrictness mkOrder mkBefore mkAfter mkAliasDefinitions
mkAliasAndWrapDefinitions fixMergeModules mkRemovedOptionModule
mkRenamedOptionModule mkMergedOptionModule mkChangedOptionModule
mkAliasOptionModule doRename filterModules;
inherit (options) isOption mkEnableOption mkSinkUndeclaredOptions
mergeDefaultOption mergeOneOption mergeEqualOption getValues
getFiles optionAttrSetToDocList optionAttrSetToDocList'
scrubOptionValue literalExample showOption showFiles
unknownModule mkOption;
inherit (types) isType setType defaultTypeMerge defaultFunctor
isOptionType mkOptionType;
inherit (debug) addErrorContextToAttrs traceIf traceVal
traceXMLVal traceXMLValMarked traceSeq traceSeqN traceValSeq
traceValSeqN traceShowVal traceShowValMarked
showVal traceCall traceCall2 traceCall3 traceValIfNot runTests
testAllTrue strict traceCallXml attrNamesToStr;
inherit (misc) maybeEnv defaultMergeArg defaultMerge foldArgs
defaultOverridableDelayableArgs composedArgsAndFun
maybeAttrNullable maybeAttr ifEnable checkFlag getValue
checkReqs uniqList uniqListExt condConcat lazyGenericClosure
innerModifySumArgs modifySumArgs innerClosePropagation
closePropagation mapAttrsFlatten nvs setAttr setAttrMerge
mergeAttrsWithFunc mergeAttrsConcatenateValues
mergeAttrsNoOverride mergeAttrByFunc mergeAttrsByFuncDefaults
mergeAttrsByFuncDefaultsClean mergeAttrBy
prepareDerivationArgs nixType imap overridableDelayableArgs;
};
in lib
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