Files
nixpkgs/pkgs/development/interpreters/ruby/ruby-version.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

92 lines
2.0 KiB
Nix

# Contains the ruby version heuristics
{ lib }:
let
# The returned set should be immutable
rubyVersion = major: minor: tiny: tail: rec {
inherit
major
minor
tiny
tail
;
# Contains the patch number "223" if tail is "p223" or null
patchLevel =
let
p = lib.removePrefix "p" tail;
isPosInt =
num:
0 == lib.stringLength (
lib.replaceStrings
[
"0"
"1"
"2"
"3"
"4"
"5"
"6"
"7"
"8"
"9"
]
[
""
""
""
""
""
""
""
""
""
""
]
num
);
in
if lib.hasPrefix "p" tail && isPosInt p then p else null;
# Shortcuts
majMin = "${major}.${minor}";
majMinTiny = "${major}.${minor}.${tiny}";
# Ruby separates lib and gem folders by ABI version which isn't very
# consistent.
libDir =
if lib.versionAtLeast majMinTiny "2.1.0" then
"${majMin}.0"
else if lib.versionAtLeast majMinTiny "2.0.0" then
"2.0.0"
else if lib.versionAtLeast majMinTiny "1.9.1" then
"1.9.1"
else
throw "version ${majMinTiny} is not supported";
# How ruby releases are tagged on github.com/ruby/ruby
gitTag =
let
base = "v${major}_${minor}_${tiny}";
in
if patchLevel != null then
"${base}_${patchLevel}"
else if tail != "" then
"${base}_${tail}"
else
base;
# Implements the builtins.toString interface.
__toString =
self:
self.majMinTiny
+ (
if self.patchLevel != null then
"-p${self.patchLevel}"
else
lib.optionalString (self.tail != "") "-${self.tail}"
);
};
in
rubyVersion