brew/Library/Homebrew/cmd/nodenv-sync.rb
Mike McQuaid 61bb2f6225
cmd/*env-sync: add HOMEBREW_ENV_SYNC_STRICT mode.
If this variable is set, `brew *env-sync` will only sync the exact
installed versions of formulae rather than all the patch (or, for node,
minor and patch) versions.
2025-03-24 15:00:16 +00:00

82 lines
2.5 KiB
Ruby

# typed: strict
# frozen_string_literal: true
require "abstract_command"
require "formula"
module Homebrew
module Cmd
class NodenvSync < AbstractCommand
cmd_args do
description <<~EOS
Create symlinks for Homebrew's installed NodeJS versions in `~/.nodenv/versions`.
Note that older version symlinks will also be created so e.g. NodeJS 19.1.0 will
also be symlinked to 19.0.0.
EOS
named_args :none
end
sig { override.void }
def run
nodenv_root = Pathname(ENV.fetch("HOMEBREW_NODENV_ROOT", Pathname(Dir.home)/".nodenv"))
# Don't run multiple times at once.
nodenv_sync_running = nodenv_root/".nodenv_sync_running"
return if nodenv_sync_running.exist?
begin
nodenv_versions = nodenv_root/"versions"
nodenv_versions.mkpath
FileUtils.touch nodenv_sync_running
HOMEBREW_CELLAR.glob("node{,@*}")
.flat_map(&:children)
.each { |path| link_nodenv_versions(path, nodenv_versions) }
nodenv_versions.children
.select(&:symlink?)
.reject(&:exist?)
.each { |path| FileUtils.rm_f path }
ensure
nodenv_sync_running.unlink if nodenv_sync_running.exist?
end
end
private
sig { params(path: Pathname, nodenv_versions: Pathname).void }
def link_nodenv_versions(path, nodenv_versions)
nodenv_versions.mkpath
version = Keg.new(path).version
major_version = version.major.to_i
minor_version = version.minor.to_i || 0
patch_version = version.patch.to_i || 0
minor_version_range, patch_version_range = if Homebrew::EnvConfig.env_sync_strict?
# Only create symlinks for the exact installed patch version.
# e.g. 23.9.0 => 23.9.0
[[minor_version], [patch_version]]
else
# Create folder symlinks for all patch versions to the latest patch version
# e.g. 23.9.0 => 23.10.1
[0..minor_version, 0..patch_version]
end
minor_version_range.each do |minor|
patch_version_range.each do |patch|
link_path = nodenv_versions/"#{major_version}.#{minor}.#{patch}"
# Don't clobber existing user installations.
next if link_path.exist? && !link_path.symlink?
FileUtils.rm_f link_path
FileUtils.ln_s path, link_path
end
end
end
end
end
end