Use 8chars short sha for commit in views

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/commit.rb

@@ -27,8 +27,9 @@ class Commit
       diffs.reduce(0) { |sum, d| sum + d.diff.lines.count }
     end
 
+    # Truncate sha to 8 characters
     def truncate_sha(sha)
-      sha[0..10]
+      sha[0..7]
     end
   end
 
@@ -128,6 +129,11 @@ class Commit
     super
   end
 
+  # Truncate sha to 8 characters
+  def short_id
+    @raw.short_id(7)
+  end
+
   def parents
     @parents ||= Commit.decorate(super)
   end

app/views/projects/blame/show.html.haml

@@ -15,7 +15,7 @@
           %tr
             %td.blame-commit
               %span.commit
-                = link_to commit.short_id(8), project_commit_path(@project, commit), class: "commit_short_id"
+                = link_to commit.short_id, project_commit_path(@project, commit), class: "commit_short_id"
                  
                 = commit_author_link(commit, avatar: true, size: 16)
                  

app/views/projects/commits/_commit.html.haml

 %li.commit.js-toggle-container
   .commit-row-title
-    = link_to commit.short_id(8), project_commit_path(project, commit), class: "commit_short_id"
+    = link_to commit.short_id, project_commit_path(project, commit), class: "commit_short_id"
      
     %span.str-truncated
       = link_to_gfm commit.title, project_commit_path(project, commit.id), class: "commit-row-message"

app/views/projects/commits/_inline_commit.html.haml

 %li.commit.inline-commit
   .commit-row-title
-    = link_to commit.short_id(8), project_commit_path(project, commit), class: "commit_short_id"
+    = link_to commit.short_id, project_commit_path(project, commit), class: "commit_short_id"
      
     %span.str-truncated
       = link_to_gfm commit.title, project_commit_path(project, commit.id), class: "commit-row-message"

spec/models/commit_spec.rb

@@ -75,7 +75,7 @@ eos
   it_behaves_like 'a mentionable' do
     let(:subject) { commit }
     let(:mauthor) { create :user, email: commit.author_email }
-    let(:backref_text) { "commit #{subject.short_id}" }
+    let(:backref_text) { "commit #{subject.id}" }
     let(:set_mentionable_text) { ->(txt){ subject.stub(safe_message: txt) } }
 
     # Include the subject in the repository stub.