git p4: move conflict prompt into run, add [q]uit input

When applying a commit to the p4 workspace fails, a prompt
asks what to do next.  This belongs up in run() instead
of in applyCommit(), where run() can notice, for instance,
that the prompt is unnecessary because this is the last commit.

Offer two options about how to continue at conflict: [s]kip or
[q]uit.  Having an explicit "quit" option gives git p4 a chance
to clean up, show the applied-commit summary, and do tag export.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-p4.py

@@ -1198,17 +1198,11 @@ class P4Submit(Command, P4UserMap):
                     patch_succeeded = True
 
         if not patch_succeeded:
-            print "What do you want to do?"
-            response = "x"
-            while response != "s":
-                response = raw_input("[s]kip this patch ")
-            if response == "s":
-                print "Skipping! Good luck with the next patches..."
-                for f in editedFiles:
-                    p4_revert(f)
-                for f in filesToAdd:
-                    os.remove(f)
-                return False
+            for f in editedFiles:
+                p4_revert(f)
+            for f in filesToAdd:
+                os.remove(f)
+            return False
 
         system(applyPatchCmd)
 
@@ -1475,11 +1469,34 @@ class P4Submit(Command, P4UserMap):
         if gitConfig("git-p4.detectCopiesHarder", "--bool") == "true":
             self.diffOpts += " --find-copies-harder"
 
+        #
+        # Apply the commits, one at a time.  On failure, ask if should
+        # continue to try the rest of the patches, or quit.
+        #
         applied = []
-        for commit in commits:
+        last = len(commits) - 1
+        for i, commit in enumerate(commits):
             ok = self.applyCommit(commit)
             if ok:
                 applied.append(commit)
+            else:
+                if i < last:
+                    quit = False
+                    while True:
+                        print "What do you want to do?"
+                        response = raw_input("[s]kip this commit but apply"
+                                             " the rest, or [q]uit? ")
+                        if not response:
+                            continue
+                        if response[0] == "s":
+                            print "Skipping this commit, but applying the rest"
+                            break
+                        if response[0] == "q":
+                            print "Quitting"
+                            quit = True
+                            break
+                    if quit:
+                        break
 
         chdir(self.oldWorkingDirectory)