Peter Aronoff 00ef4b7fcb A more helpful error message for brew untap
`brew untap` without arguments currently errors out (as it should), but the
error message is generic and unhelpful. (The error message is borrowed from
a method in the tap command - `tap_args`.)

Closes Homebrew/homebrew#18186.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
2013-03-02 12:11:56 +00:00

48 lines
1.3 KiB
Ruby

require 'cmd/tap' # for tap_args
module Homebrew extend self
def untap
raise "Usage is `brew untap <tap-name>`" if ARGV.empty?
user, repo = tap_args
# we consistently downcase in tap to ensure we are not bitten by case-insensive
# filesystem issues. Which is the default on mac. The problem being the
# filesystem cares, but our regexps don't. So unless we resolve *every* path
# we will get bitten.
user.downcase!
repo.downcase!
tapd = HOMEBREW_LIBRARY/"Taps/#{user}-#{repo}"
raise "No such tap!" unless tapd.directory?
files = []
tapd.find_formula{ |file| files << Pathname.new("#{user}-#{repo}").join(file) }
untapped = unlink_tap_formula(files)
rm_rf tapd
puts "Untapped #{untapped} formula"
end
def unlink_tap_formula formulae
untapped = 0
gitignores = (HOMEBREW_LIBRARY/"Formula/.gitignore").read.split rescue []
formulae.each do |formula|
tapd = (HOMEBREW_LIBRARY/"Taps/#{formula}").dirname
bn = formula.basename.to_s
pn = HOMEBREW_LIBRARY/"Formula/#{bn}"
if pn.symlink? and (!pn.exist? or pn.realpath.to_s =~ %r[^#{tapd}])
pn.delete
gitignores.delete(bn)
untapped += 1
end
end
HOMEBREW_REPOSITORY.join("Library/Formula/.gitignore").atomic_write(gitignores * "\n")
untapped
end
end