1 files changed, 35 insertions, 0 deletions
diff --git a/Library/Homebrew/compat/sha1.rb b/Library/Homebrew/compat/sha1.rb
new file mode 100644
index 000000000..9d6fbc6e0
--- /dev/null
+++ b/Library/Homebrew/compat/sha1.rb
@@ -0,0 +1,35 @@
+class Formula
+  def self.sha1(val)
+    stable.sha1(val)
+  end
+end
+
+class SoftwareSpec
+  def sha1(val)
+    @resource.sha1(val)
+  end
+end
+
+class Resource
+  def sha1(val)
+    @checksum = Checksum.new(:sha1, val)
+  end
+end
+
+class BottleSpecification
+  def sha1(val)
+    digest, tag = val.shift
+    collector[tag] = Checksum.new(:sha1, digest)
+  end
+end
+
+class Pathname
+  def sha1
+    require "digest/sha1"
+    opoo <<-EOS.undent
+    SHA1 support is deprecated and will be removed in a future version.
+    Please switch this formula to SHA256.
+    EOS
+    incremental_hash(Digest::SHA1)
+  end
+end