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Limit uplevel travarsing

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* tool/vcs.rb (VCS.detect): limit level of travarsing parent
  directories, 0 by the default.  curretly always detecting at the
  source directory itself.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66305 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-12-10 01:58:28 +00:00
parent fec4b2225e
commit f798ff4c43
1 changed files with 5 additions and 1 deletions
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6
tool/vcs.rb
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@ -124,12 +124,16 @@ class VCS
@@dirs << [dir, self, pred]
end
def self.detect(path)
def self.detect(path, uplevel_limit: 0)
curr = path
begin
@@dirs.each do |dir, klass, pred|
return klass.new(curr) if pred ? pred[curr, dir] : File.directory?(File.join(curr, dir))
end
if uplevel_limit
break if uplevel_limit.zero?
uplevel_limit -= 1
end
prev, curr = curr, File.realpath(File.join(curr, '..'))
end until curr == prev # stop at the root directory
raise VCS::NotFoundError, "does not seem to be under a vcs: #{path}"