blob: c90d66fa882a24240d0483be33d5b587ca029f28 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
require "formula"
require "keg"
require "cmd/link"
module Homebrew
def switch
if ARGV.named.length != 2
onoe "Usage: brew switch <name> <version>"
exit 1
end
name = ARGV.shift
version = ARGV.shift
canonical_name = Formulary.canonical_name(name)
rack = HOMEBREW_CELLAR.join(canonical_name)
unless rack.directory?
onoe "#{name} not found in the Cellar."
exit 2
end
# Does the target version exist?
unless (rack+version).directory?
onoe "#{name} does not have a version \"#{version}\" in the Cellar."
versions = rack.subdirs.map { |d| Keg.new(d).version }
puts "Versions available: #{versions.join(', ')}"
exit 3
end
# Unlink all existing versions
rack.subdirs.each do |v|
keg = Keg.new(v)
puts "Cleaning #{keg}"
keg.unlink
end
keg = Keg.new(rack+version)
# Link new version, if not keg-only
if keg_only?(canonical_name)
keg.optlink
puts "Opt link created for #{keg}"
else
puts "#{keg.link} links created for #{keg}"
end
end
end
|
