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-rw-r--r--Library/Homebrew/version.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index b9f512a50..56ef37f72 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -344,6 +344,11 @@ class Version
m = /[-v]((?:\d+\.)*\d+)$/.match(spec_s)
return m.captures.first unless m.nil?
+ # date-based versioning
+ # e.g. ltopers-v2017-04-14.tar.gz
+ m = /-v?(\d{4}-\d{2}-\d{2})/.match(stem)
+ return m.captures.first unless m.nil?
+
# e.g. lame-398-1
m = /-((?:\d)+-\d+)/.match(stem)
return m.captures.first unless m.nil?