[PATCHv3 1/4] Refactor print_state into get_state

[Phil Hord <hordp@cisco.com>]

Recently git-status learned to display the state of the git
sequencer in long form to help the user remember an interrupted
command.  This information is useful to other callers who do
not want it printed in the same way.

Split the new print_state function into separate get_state and
print_state functions so others can get this state info and
share common code.

Signed-off-by: Phil Hord <hordp@cisco.com>
---
 wt-status.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index 2a9658b..760f52b 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -928,34 +928,41 @@ static void show_bisect_in_progress(struct wt_status *s,
 	wt_status_print_trailer(s);
 }
 
-static void wt_status_print_state(struct wt_status *s)
+static void wt_status_get_state(struct wt_status *s , struct wt_status_state *state)
 {
-	const char *state_color = color(WT_STATUS_HEADER, s);
-	struct wt_status_state state;
 	struct stat st;
 
-	memset(&state, 0, sizeof(state));
+	memset(state, 0, sizeof(*state));
 
+	/* Determine sequencer activity */
 	if (!stat(git_path("MERGE_HEAD"), &st)) {
-		state.merge_in_progress = 1;
+		state->merge_in_progress = 1;
 	} else if (!stat(git_path("rebase-apply"), &st)) {
 		if (!stat(git_path("rebase-apply/applying"), &st)) {
-			state.am_in_progress = 1;
+			state->am_in_progress = 1;
 			if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
-				state.am_empty_patch = 1;
+				state->am_empty_patch = 1;
 		} else {
-			state.rebase_in_progress = 1;
+			state->rebase_in_progress = 1;
 		}
 	} else if (!stat(git_path("rebase-merge"), &st)) {
 		if (!stat(git_path("rebase-merge/interactive"), &st))
-			state.rebase_interactive_in_progress = 1;
+			state->rebase_interactive_in_progress = 1;
 		else
-			state.rebase_in_progress = 1;
+			state->rebase_in_progress = 1;
 	} else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
-		state.cherry_pick_in_progress = 1;
+		state->cherry_pick_in_progress = 1;
 	}
 	if (!stat(git_path("BISECT_LOG"), &st))
-		state.bisect_in_progress = 1;
+		state->bisect_in_progress = 1;
+}
+
+static void wt_status_print_state(struct wt_status *s)
+{
+	const char *state_color = color(WT_STATUS_HEADER, s);
+	struct wt_status_state state;
+
+	wt_status_get_state(s, &state);
 
 	if (state.merge_in_progress)
 		show_merge_in_progress(s, &state, state_color);
-- 
1.8.0.3.gde9c7d5.dirty