Merge remote-tracking branch 'upstream/master'

2 files changed, 22 insertions, 7 deletions

diff --git a/tasks/mruby_build_commands.rake b/tasks/mruby_build_commands.rake
index 1d69fa54d..b678b1f0e 100644
--- a/tasks/mruby_build_commands.rake
+++ b/tasks/mruby_build_commands.rake
@@ -220,19 +220,28 @@ module MRuby
 
   class Command::Git < Command
     attr_accessor :flags
-    attr_accessor :clone_options
+    attr_accessor :clone_options, :pull_options
 
     def initialize(build)
       super
       @command = 'git'
       @flags = []
       @clone_options = "clone %{flags} %{url} %{dir}"
+      @pull_options = "pull"
     end
 
     def run_clone(dir, url, _flags = [])
       _pp "GIT", url, dir.relative_path
       _run clone_options, { :flags => [flags, _flags].flatten.join(' '), :url => url, :dir => filename(dir) }
     end
+
+    def run_pull(dir, url)
+      root = Dir.pwd
+      Dir.chdir dir
+      _pp "GIT PULL", url, dir.relative_path
+      _run pull_options
+      Dir.chdir root
+    end
   end
 
   class Command::Mrbc < Command
diff --git a/tasks/mruby_build_gem.rake b/tasks/mruby_build_gem.rake
index 870ccfa57..975b032a6 100644
--- a/tasks/mruby_build_gem.rake
+++ b/tasks/mruby_build_gem.rake
@@ -40,13 +40,19 @@ module MRuby
       elsif params[:git]
         url = params[:git]
         gemdir = "build/mrbgems/#{url.match(/([-\w]+)(\.[-\w]+|)$/).to_a[1]}"
-        return gemdir if File.exists?(gemdir)
 
-        options = [params[:options]] || []
-        options << "--branch \"#{params[:branch]}\"" if params[:branch]
-
-        FileUtils.mkdir_p "build/mrbgems"
-        git.run_clone gemdir, url, options
+        if File.exists?(gemdir)
+          if $pull_gems
+            git.run_pull gemdir, url
+          else
+            gemdir
+          end 
+        else
+          options = [params[:options]] || []
+          options << "--branch \"#{params[:branch]}\"" if params[:branch]
+          FileUtils.mkdir_p "build/mrbgems"
+          git.run_clone gemdir, url, options
+        end
       else
         fail "unknown gem option #{params}"
       end