In preparation of the migration to 'main', make a copy of the commit

[arvados-dev.git] / git / hooks / old-enforce-dco-signoff.rb

diff --git a/git/hooks/old-enforce-dco-signoff.rb b/git/hooks/old-enforce-dco-signoff.rb
new file mode 100755 (executable)
index 0000000..191a34b
--- /dev/null
+++ b/git/hooks/old-enforce-dco-signoff.rb
@@ -0,0 +1,71 @@
+#!/usr/bin/env ruby
+
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
+# This script can be installed as a git update hook.
+
+# It can also be installed as a gitolite 'hooklet' in the
+# hooks/common/update.secondary.d/ directory.
+
+# NOTE: this script runs under the same assumptions as the 'update' hook, so
+# the starting directory must be maintained and arguments must be passed on.
+
+$refname = ARGV[0]
+$oldrev  = ARGV[1]
+$newrev  = ARGV[2]
+$user    = ENV['USER']
+
+puts "Enforcing DCO signoff..."
+puts "(#{$refname}) (#{$oldrev[0,6]}) (#{$newrev[0,6]})"
+
+$regex = /\[ref: (\d+)\]/
+
+$arvados_DCO = /Arvados-DCO-1.1-Signed-off-by:/
+
+# enforced DCO signoff in commit message
+def check_message_format
+  if ($newrev[0,6] ==  '000000')
+    # A branch is being deleted. Do not check old commits for DCO signoff!
+    all_revs    = []
+  elsif ($oldrev[0,6] ==  '000000')
+    if $refname != 'refs/heads/master'
+      # A new branch was pushed. Check all new commits in this branch.
+      all_revs  = `git log --pretty=format:%H master..#{$newrev}`.split("\n")
+    else
+      # When does this happen?
+      all_revs  = [$newrev]
+    end
+  else
+    all_revs    = `git rev-list --first-parent #{$oldrev}..#{$newrev}`.split("\n")
+  end
+
+  broken = false
+
+  all_revs.each do |rev|
+    message = `git cat-file commit #{rev} | sed '1,/^$/d' | grep -E "Arvados-DCO-1.1-Signed-off-by: .+@.+\..+"`
+
+    if ! $arvados_DCO.match(message)
+      puts "\n[POLICY] Rejected commit: missing Arvados-DCO-1.1-Signed-off-by line"
+      puts "\n******************************************************************\n"
+      puts "\nOffending commit: #{rev}\n"
+      puts "\nOffending commit message:\n\n"
+      puts `git cat-file commit #{rev} | sed '1,/^$/d'`
+      puts "\n******************************************************************\n"
+      puts "\n\n"
+      puts "\nFor more information, see\n"
+      puts "\n  https://dev.arvados.org/projects/arvados/wiki/Developer_Certificate_Of_Origin\n"
+      puts "\n\n"
+      broken = true
+    end
+  end
+
+  if broken
+    puts "Enforcing DCO signoff: FAIL"
+    exit 1
+  end
+  puts "Enforcing DCO signoff: PASS"
+end
+
+check_message_format