[PATCH v4 08/11] contrib: related: support multiple roles

[Felipe Contreras <felipe.contreras@xxxxxxxxx>]

Currently only the roles of 'author' and 'signer' and handler, but now
there's also 'reviewer' and 'acker'.

Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
 contrib/related/git-related | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/contrib/related/git-related b/contrib/related/git-related
index e8603be..cf6818e 100755
--- a/contrib/related/git-related
+++ b/contrib/related/git-related
@@ -27,6 +27,12 @@ rescue OptionParser::InvalidOption => e
   $rev_args += e.args
 end
 
+KNOWN_ROLES = {
+  'Signed-off' => :signer,
+  'Reviewed' => :reviewer,
+  'Acked' => :acker,
+}
+
 class Commit
 
   attr_reader :id, :roles
@@ -38,25 +44,28 @@ class Commit
 
   def parse(data)
     author = msg = nil
-    roles = {}
+    # hash of arrays
+    roles = Hash.new { |hash, key| hash[key] = [] }
     data.each_line do |line|
       if not msg
         case line
         when /^author ([^<>]+) <(\S+)> (.+)$/
           author = $1, $2
-          roles[author] = :author
+          roles[author] << :author
         when /^$/
           msg = true
         end
       else
-        if line =~ /^(Signed-off|Reviewed|Acked)-by: ([^<>]+) <(\S+?)>$/
+        role_regex = KNOWN_ROLES.keys.join('|')
+        if line =~ /^(#{role_regex})-by: ([^<>]+) <(\S+?)>$/
           person = $2, $3
-          roles[person] = :signer if person != author
+          role = KNOWN_ROLES[$1]
+          roles[person] << role if person != author
         end
       end
     end
-    @roles = roles.map do |person, role|
-      [person, role]
+    @roles = roles.map do |person, roles|
+      [person, roles]
     end
   end
 
@@ -195,9 +204,11 @@ end
 persons = Hash.new { |hash, key| hash[key] = {} }
 
 commits.items.values.each do |commit|
-  commit.roles.each do |person, role|
-    persons[person][role] ||= 0
-    persons[person][role] += 1
+  commit.roles.each do |person, roles|
+    roles.each do |role|
+      persons[person][role] ||= 0
+      persons[person][role] += 1
+    end
   end
 end
 
-- 
1.8.2.1

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