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130 Commits

Author SHA1 Message Date
Silvan Mosberger
cf47b9a5c0
Merge pull request #270537 from 9999years/packagesFromDirectory 
lib.packagesFromDirectoryRecursive: init
 2023-12-19 22:03:01 +01:00
Rebecca Turner
090b929b8a
lib.packagesFromDirectoryRecursive: init 
Co-authored-by: Gabriella Gonzalez <GenuineGabriella@gmail.com>
 2023-12-19 09:48:17 -08:00
Robert Hensing
7d993b9521 lib.attrsets.hasAttrByPath: Document law and laziness, and test it 2023-12-08 23:19:09 +01:00
Robert Hensing
72bd4bbb58 lib.attrsets.longestValidPathPrefix: init 
Allows finding the most specific path that exists.
This is useful for error messages relating to attribute paths.
 2023-12-08 23:15:13 +01:00
Robert Hensing
67cc78643d lib.sortOn: init 
A more efficient sort in some cases, and often convenient.

This exposes `lib.lists.sortOn` immediately on `lib`, because it is
a sibling of `sort`, which is already present there.
Omitting it would lead to more confusion, and worse outcomes.
There's no confusion about the types `sort` or `sortOn` operate on.

Haskell agrees about the type for `sortOn`, and it is in its `base`.
 2023-12-08 22:15:29 +01:00
Robert Hensing
51357572f2
Merge pull request #269552 from adisbladis/lib-matchattrs-list-allocs 
lib.attrsets.matchAttrs: Avoid some list allocations when walking structure
 2023-11-27 14:44:37 +01:00
adisbladis
013a0a1357 lib.attrsets.matchAttrs: Avoid some list allocations when walking structure 
Benchmarks (`nix-instantiate ./. -A python3`):

- Before:
``` json
{
  "cpuTime": 0.29049500823020935,
  "envs": {
    "bytes": 4484216,
    "elements": 221443,
    "number": 169542
  },
  "gc": {
    "heapSize": 402915328,
    "totalBytes": 53086800
  },
  "list": {
    "bytes": 749424,
    "concats": 4242,
    "elements": 93678
  },
  "nrAvoided": 253991,
  "nrFunctionCalls": 149848,
  "nrLookups": 49612,
  "nrOpUpdateValuesCopied": 1587837,
  "nrOpUpdates": 10104,
  "nrPrimOpCalls": 130356,
  "nrThunks": 358981,
  "sets": {
    "bytes": 30423600,
    "elements": 1859999,
    "number": 41476
  },
  "sizes": {
    "Attr": 16,
    "Bindings": 16,
    "Env": 16,
    "Value": 24
  },
  "symbols": {
    "bytes": 236145,
    "number": 24453
  },
  "values": {
    "bytes": 10502520,
    "number": 437605
  }
}
```

- After:
``` json
{
  "cpuTime": 0.2946169972419739,
  "envs": {
    "bytes": 3315224,
    "elements": 172735,
    "number": 120834
  },
  "gc": {
    "heapSize": 402915328,
    "totalBytes": 48718432
  },
  "list": {
    "bytes": 347568,
    "concats": 4242,
    "elements": 43446
  },
  "nrAvoided": 173252,
  "nrFunctionCalls": 101140,
  "nrLookups": 73595,
  "nrOpUpdateValuesCopied": 1587837,
  "nrOpUpdates": 10104,
  "nrPrimOpCalls": 83067,
  "nrThunks": 304216,
  "sets": {
    "bytes": 29704096,
    "elements": 1831673,
    "number": 24833
  },
  "sizes": {
    "Attr": 16,
    "Bindings": 16,
    "Env": 16,
    "Value": 24
  },
  "symbols": {
    "bytes": 236145,
    "number": 24453
  },
  "values": {
    "bytes": 8961552,
    "number": 373398
  }
}
```
 2023-11-27 11:20:50 +13:00
adisbladis
4b4d413817 lib.meta: Avoid attrset allocation in platformMatch 
Benchmarks (`nix-instantiate ./. -A python3`)

- Before
``` json
{
  "cpuTime": 0.30625399947166443,
  "envs": {
    "bytes": 4484216,
    "elements": 221443,
    "number": 169542
  },
  "gc": {
    "heapSize": 402915328,
    "totalBytes": 53091024
  },
  "list": {
    "bytes": 749424,
    "concats": 4242,
    "elements": 93678
  },
  "nrAvoided": 253991,
  "nrFunctionCalls": 149848,
  "nrLookups": 49614,
  "nrOpUpdateValuesCopied": 1588326,
  "nrOpUpdates": 10106,
  "nrPrimOpCalls": 130356,
  "nrThunks": 359013,
  "sets": {
    "bytes": 30432320,
    "elements": 1860540,
    "number": 41480
  },
  "sizes": {
    "Attr": 16,
    "Bindings": 16,
    "Env": 16,
    "Value": 24
  },
  "symbols": {
    "bytes": 236218,
    "number": 24459
  },
  "values": {
    "bytes": 10504632,
    "number": 437693
  }
}
```

- After
```
{
  "cpuTime": 0.29695799946784973,
  "envs": {
    "bytes": 3296712,
    "elements": 169055,
    "number": 121517
  },
  "gc": {
    "heapSize": 402915328,
    "totalBytes": 49044992
  },
  "list": {
    "bytes": 504928,
    "concats": 4242,
    "elements": 63116
  },
  "nrAvoided": 175403,
  "nrFunctionCalls": 110554,
  "nrLookups": 44907,
  "nrOpUpdateValuesCopied": 1588326,
  "nrOpUpdates": 10106,
  "nrPrimOpCalls": 82330,
  "nrThunks": 306625,
  "sets": {
    "bytes": 29943328,
    "elements": 1843076,
    "number": 28382
  },
  "sizes": {
    "Attr": 16,
    "Bindings": 16,
    "Env": 16,
    "Value": 24
  },
  "symbols": {
    "bytes": 236218,
    "number": 24459
  },
  "values": {
    "bytes": 9037752,
    "number": 376573
  }
}
```
 2023-11-25 11:05:23 +13:00
Felix Buehler
66261e9961 lib.lists.allUnique: init 2023-11-14 19:52:32 +01:00
Silvan Mosberger
17012aa0d2
Merge pull request #261676 from h7x4/lib-add-replicatestring 
lib.strings: add `replicate`
 2023-11-07 18:29:31 +01:00
h7x4
206d20426c
lib.strings: add replicate 
`strings.replicate` returns n copies of a string, concatenated into a new
string

Co-authored-by: Silvan Mosberger <github@infinisil.com>
 2023-10-31 20:25:41 +01:00
Gerg-L
d2161d0632
lib/tests: add tests for getExe' and getExe 2023-10-16 20:29:28 -04:00
Robert Hensing
0a10279342 lib.makeOverridable: fix functionArgs on returned function 2023-10-11 22:56:53 +02:00
Silvan Mosberger
5323fbf703
Merge pull request #254452 from flyingcircusio/lib-attrsToList 
lib.attrsets.attrsToList: add function
 2023-10-10 19:49:17 +02:00
Oliver Schmidt
d70633f91c lib.attrsets.attrsToList: add function 
For transforming back between lists and attrsets, it makes sense to have
a quasi-inverse of `builtins.listToAttrs` available as a library
function.

Co-authored-by: Silvan Mosberger <github@infinisil.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
 2023-10-10 16:11:01 +02:00
Silvan Mosberger
dd72ff27f7 lib.attrsets.foldlAttrs: Make stricter 
See the parent commit for the same change to lib.lists.foldl'
 2023-09-27 02:43:59 +02:00
Silvan Mosberger
3b6169f87b lib.lists.foldl': Make strict in the initial accumulator 
To maintain backwards compatibility, this can't be changed in the Nix language.
We can however ensure that the version Nixpkgs has the more intuitive behavior.
 2023-09-27 02:43:59 +02:00
Silvan Mosberger
9893fee947 lib.lists.foldl': Add tests 2023-09-26 18:55:54 +02:00
VwCSXg
147560180c lib.generators.toGitINI: added test 
Added basic generators.toGitINI test.
Mostly taken from 958c06303f/tests/modules/programs/git/git.nix.
The ${"\t} escape is used so that the lines aren't recognized as "Wrong
indent style".
 2023-08-21 13:12:40 +02:00
Silvan Mosberger
8fab18d4c1 lib.removePrefix: Add tests 2023-08-14 23:29:00 +02:00
Silvan Mosberger
87c5a6a84f
Merge pull request #243511 from tweag/lib.lists.hasPrefix 
`lib.lists.{hasPrefix,removePrefix}`: init
 2023-08-14 21:15:54 +02:00
Silvan Mosberger
bd74cdfb2e
Merge pull request #243520 from tweag/lib.lists.commonPrefix 
`lib.lists.{findFirstIndex,commonPrefix}`: init
 2023-07-26 23:14:58 +02:00
Silvan Mosberger
7f61b01600 lib.lists.commonPrefix: init 2023-07-20 22:42:01 +02:00
Silvan Mosberger
53dcfd24ad lib.lists.findFirstIndex: init 
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
 2023-07-19 17:35:28 +02:00
Robert Hensing
0665253b86
Merge pull request #244044 from tweag/lib-readme 
Create a Readme in `lib`
 2023-07-19 16:34:36 +02:00
Silvan Mosberger
fa503f4b92 lib.attrsets.mergeAttrsList: init 
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
 2023-07-18 20:27:15 +02:00
Silvan Mosberger
581d7c88be lib/tests: Unify documentation of individual testable files 2023-07-18 17:22:45 +02:00
Silvan Mosberger
9fdc0bb2bf lib.lists.removePrefix: init 2023-07-14 19:36:46 +02:00
Silvan Mosberger
bc8fbc2572 lib.lists.hasPrefix: init 2023-07-14 19:36:45 +02:00
Silvan Mosberger
9790e70150 lib.list.findFirst: Make lazier 
There's no need to evaluate list elements after a matching element
 2023-06-06 17:17:32 +02:00
Silvan Mosberger
6996f76885 lib/tests: Add findFirst tests 2023-06-06 17:06:18 +02:00
toonn
e31c8b22dd
Merge pull request #223407 from AngryAnt/toplist-path 
lib.toPlist: Add support for path values
 2023-05-05 21:15:23 +02:00
Mykola Orliuk
7287c0e076 lib.generators.toLua: asBindings option 
Allows to generate code block for setting of global variables
 2023-04-29 19:26:35 +02:00
Mykola Orliuk
e9b416168a lib.generators.toLua: allow disabling multiline 2023-04-23 19:46:14 +02:00
Mykola Orliuk
4ec4c6fda9 lib/generators: add toLua/mkLuaInline 
Suitable to simplify Lua-based configurations like neovim-lspconfig that
might need to interpolate Nix package paths.
 2023-04-23 01:07:58 +02:00
Emil "AngryAnt" Johansen
e932e98437
lib.toPlist: keep test output in external files for their tab indents 2023-03-27 19:25:52 +02:00
Emil "AngryAnt" Johansen
63a8c43d09
lib.toPlist: basic test coverage 2023-03-27 19:25:38 +02:00
hsjobeki
15a8d05ba5 init: lib.foldlAttrs 
- provide comprehensive example
- add unit test
 2023-03-11 10:42:00 +01:00
Patrick Widmer
7089294f10 strings: add escapeQuery for url encoding 2023-03-03 20:48:55 +01:00
Silvan Mosberger
0a60663e67
Merge pull request #206611 from h7x4/lib-lists-add-repeat 
lib.lists: add `replicate`
 2023-02-07 06:16:09 +01:00
h7x4
7c4abbf80e
lib.lists: add replicate 
`replicate` returns n copies of an element as a list.

Co-Authored-By: Silvan Mosberger <contact@infinisil.com>
 2023-02-06 20:40:47 +01:00
Silvan Mosberger
50e4dbf35b
Merge pull request #205557 from ncfavier/concatLines 
lib/strings: add `concatLines`
 2023-01-31 18:05:53 +01:00
Naïm Favier
0355479715
lib/versions: add pad 
Pad a version string with zeros to match a given number of components.
 2022-12-21 12:58:21 +01:00
Robert Hensing
efa1140e83
Merge pull request #205457 from h7x4/lib-strings-toInt-broken-for-negative-numbers 
lib.strings: fix negative number handling for `toInt` and `toIntBase10`
 2022-12-11 02:26:42 +01:00
Naïm Favier
ed0b8c26f1
lib/strings: add concatLines 
Like `unlines` from Haskell.

The aim is to replace the `concatStringsSep "\n"` pattern for generated
files, which doesn't add a final newline.
 2022-12-10 15:56:30 +01:00
h7x4
62e863e98c
lib.strings: fix negative number handling for toInt and toIntBase10 
The previous version would be unstable due to an input validation regex
not expecting a '-' in front of the number.
 2022-12-10 13:16:45 +01:00
Naïm Favier
6a117e2759 nixos/doc: render option values using lib.generators.toPretty 
Render un`_type`d defaults and examples as `literalExpression`s using
`lib.generators.toPretty` so that consumers don't have to reinvent Nix
pretty-printing. `renderOptionValue` is kept internal for now intentionally.

Make `toPretty` print floats as valid Nix values (without a tilde).

Get rid of the now-obsolete `substSpecial` function.

Move towards disallowing evaluation of packages in the manual by
raising a warning on `pkgs.foo.{outPath,drvPath}`; later, this should
throw an error. Instead, module authors should use `literalExpression`
and `mkPackageOption`.
 2022-12-08 17:52:52 +01:00
Naïm Favier
0b661ce32a lib/generators.toPretty: escape strings properly 2022-12-08 17:52:52 +01:00
Naïm Favier
0fa7b1b004 lib/generators.toPretty: don't evaluate derivations 
With the goal of making `toPretty` suitable for rendering option
values, render derivations as `<derivation foo-1.0>` instead of
`<derivation /nix/store/…-foo-1.0.drv>`.

This is to avoid causing sudden evaluation errors for out-of-tree
projects that have options with `default = pkgs.someUnfreePackage;` and
no `defaultText`.
 2022-12-08 17:52:52 +01:00
figsoda
f993f8a186 lib/attrsets: add concatMapAttrs 2022-11-17 10:41:53 -05:00