Merge branch 'mm/conflict-advice'

* mm/conflict-advice:
  Be more user-friendly when refusing to do something because of conflict.

Conflicts:
	Documentation/config.txt
	advice.c
	advice.h

1 files changed, 23 insertions, 2 deletions

diff --git a/git-pull.sh b/git-pull.sh
index 9e69ada413..54ce0af2d4 100755
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -13,8 +13,29 @@ set_reflog_action "pull $*"
 require_work_tree
 cd_to_toplevel
 
-test -z "$(git ls-files -u)" ||
-	die "You are in the middle of a conflicted merge."
+
+die_conflict () {
+    git diff-index --cached --name-status -r --ignore-submodules HEAD --
+    if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+	die "Pull is not possible because you have unmerged files.
+Please, fix them up in the work tree, and then use 'git add/rm <file>'
+as appropriate to mark resolution, or use 'git commit -a'."
+    else
+	die "Pull is not possible because you have unmerged files."
+    fi
+}
+
+die_merge () {
+    if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+	die "You have not concluded your merge (MERGE_HEAD exists).
+Please, commit your changes before you can merge."
+    else
+	die "You have not concluded your merge (MERGE_HEAD exists)."
+    fi
+}
+
+test -z "$(git ls-files -u)" || die_conflict
+test -f "$GIT_DIR/MERGE_HEAD" && die_merge
 
 strategy_args= diffstat= no_commit= squash= no_ff= ff_only=
 log_arg= verbosity=