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help: handle alias

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Before this fix
```
$ brew --help ls
Error: Unknown command: ls
```

After this fix
```
$ brew --help ls
brew list, ls
<snip>
```
This commit is contained in:
Xu Cheng 2016-04-11 21:47:08 +08:00
parent 496fff643f
commit af1eb007e2
1 changed files with 1 additions and 0 deletions
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1
Library/Homebrew/cmd/help.rb
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@ -41,6 +41,7 @@ module Homebrew
end end
def help_for_command(cmd) def help_for_command(cmd)
cmd = HOMEBREW_INTERNAL_COMMAND_ALIASES.fetch(cmd, cmd)
cmd_path = if File.exist?(HOMEBREW_LIBRARY_PATH/"cmd/#{cmd}.sh") cmd_path = if File.exist?(HOMEBREW_LIBRARY_PATH/"cmd/#{cmd}.sh")
HOMEBREW_LIBRARY_PATH/"cmd/#{cmd}.sh" HOMEBREW_LIBRARY_PATH/"cmd/#{cmd}.sh"
elsif ARGV.homebrew_developer? && File.exist?(HOMEBREW_LIBRARY_PATH/"dev-cmd/#{cmd}.sh") elsif ARGV.homebrew_developer? && File.exist?(HOMEBREW_LIBRARY_PATH/"dev-cmd/#{cmd}.sh")