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keg: don't delete main opt links of other formulae.

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If an old alias, according to the tab, of a formula being upgraded (e.g.
python) has the same name as the main opt link of some other formula
(e.g. python@2), don't remove the main opt link of that other formula.

Specifically,

  brew install python@2
  brew upgrade python

should not accidentally delete /usr/local/opt/python@2 even though
python@2 used to be an alias of python.
This commit is contained in:
ilovezfs 2018-03-07 22:35:23 -08:00
parent eee6e98d90
commit f87a589129
1 changed files with 5 additions and 1 deletions
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6
Library/Homebrew/keg.rb
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@ -256,7 +256,11 @@ class Keg
aliases.each do |a|
alias_symlink = opt/a
alias_symlink.delete if alias_symlink.symlink? || alias_symlink.exist?
if alias_symlink.symlink? && alias_symlink.exist?
alias_symlink.delete if alias_symlink.realpath == opt_record.realpath
elsif alias_symlink.symlink? || alias_symlink.exist?
alias_symlink.delete
end
end
Pathname.glob("#{opt_record}@*").each do |a|