[StGit PATCH] Fix dirty index errors when resolving conflicts

[Zane Bitter <zbitter@redhat.com>]

The patch 6e8fdc58c786a45d7a63c5edf9c702f1874a7a19 causes StGit to raise
"warnings" (actually: errors) in the event that there are changes staged in
the index and a refresh is performed without specifying either --index or
--force. This is great for preventing an entire class of common mistakes,
but is also a giant pain when resolving conflicts after a pull/rebase.
Depending on the workflow in use, this may occur with a frequency anywhere
between "never" and "mulitple times on every pull".

This patch removes the pain by:
 - Reporting unresolved conflicts *before* complaining about staged
   changes, since it goes without saying that, when present, these are the
   main problem.
 - Not complaining about staged changes if there are no unstaged changes in
   the working directory, since the presence of --index is immaterial in
   this case.

Signed-off-by: Zane Bitter <zbitter@redhat.com>
---
 stgit/commands/refresh.py |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/stgit/commands/refresh.py b/stgit/commands/refresh.py
index a2bab42..331c18d 100644
--- a/stgit/commands/refresh.py
+++ b/stgit/commands/refresh.py
@@ -247,18 +247,19 @@ def func(parser, options, args):
     patch_name = get_patch(stack, options.patch)
     paths = list_files(stack, patch_name, args, options.index, options.update)
 
-    # Make sure the index is clean before performing a full refresh
-    if not options.index and not options.force:
-        if not stack.repository.default_index.is_clean(stack.head):
-            raise common.CmdException(
-                'The index is dirty. Did you mean --index? To force a full refresh use --force.')
-
     # Make sure there are no conflicts in the files we want to
     # refresh.
     if stack.repository.default_index.conflicts() & paths:
         raise common.CmdException(
             'Cannot refresh -- resolve conflicts first')
 
+    # Make sure the index is clean before performing a full refresh
+    if not options.index and not options.force:
+        if not (stack.repository.default_index.is_clean(stack.head) or
+                stack.repository.default_iw.worktree_clean()):
+            raise common.CmdException(
+                'The index is dirty. Did you mean --index? To force a full refresh use --force.')
+
     # Commit index to temp patch, and absorb it into the target patch.
     retval, temp_name = make_temp_patch(
         stack, patch_name, paths, temp_index = path_limiting)