Updated rebase functionality to use "git pull --rebase"

README.md

@@ -68,10 +68,6 @@ Default: **true**. Append the `--prune` flag when running `git fetch`, if your g
 
 Default: **false**. Normally, git-up will only fetch remotes for which there is at least one local tracking branch. Setting this option to **true** will make git-up always fetch from all remotes, which is useful if e.g. you use a remote to push to your CI system but never check those branches out.
 
-### git-up.rebase.arguments [string]
-
-Default: **unset**. Additional arguments to pass to `git rebase`. For example, setting this to `--preserve-merges` will recreate your merge commits in the rebased branch.
-
 ### git-up.rebase.auto [true|false]
 
 Default: **true**. If this option is set to **false**, git-up will not rebase branches for you. Instead, it will print a message saying they are diverged and let you handle rebasing them later. This can be useful if you have a lot of in-progress work that you don't want to deal with at once, but still want to update other branches.

lib/git-up.rb

@@ -95,9 +95,10 @@ def rebase_all_branches
     col_width = branches.map { |b| b.name.length }.max + 1
 
     branches.each do |branch|
-      remote = remote_map[branch.name]
+      remote      = remote_map[branch.name]
+      curbranch   = branch.name.ljust(col_width)
+      remote_name = repo.config["branch.#{curbranch}.remote"] || "origin"
 
-      curbranch = branch.name.ljust(col_width)
       if branch.name == repo.head.name
         print curbranch.bold
       else
@@ -127,7 +128,7 @@ def rebase_all_branches
 
       log(branch, remote)
       checkout(branch.name)
-      rebase(remote)
+      rebase(remote, remote_name, curbranch)
     end
   end
 
@@ -218,11 +219,10 @@ def log(branch, remote)
     end
   end
 
-  def rebase(target_branch)
+  def rebase(target_branch, remote_name, branch_name)
     current_branch = repo.head
-    arguments = config("rebase.arguments")
 
-    output, err = repo.git.sh("#{Grit::Git.git_binary} rebase #{arguments} #{target_branch.name}")
+    output, err = repo.git.sh("#{Grit::Git.git_binary} pull --rebase #{remote_name} #{branch_name}")
 
     unless on_branch?(current_branch.name) and is_fast_forward?(current_branch, target_branch)
       raise GitError.new("Failed to rebase #{current_branch.name} onto #{target_branch.name}", output+err)

lib/git-up/version.rb

@@ -1,3 +1,3 @@
 class GitUp
-  VERSION = "0.5.12"
+  VERSION = "0.5.12.1"
 end