Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 wt-status.c | 52 +++++++++++++++++++++++++++++++---------------------
 wt-status.h |  5 +++--
 2 files changed, 34 insertions(+), 23 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index ef405d0..183aafe 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -970,7 +970,7 @@ static void show_bisect_in_progress(struct wt_status *s,
  * Extract branch information from rebase/bisect
  */
 static void read_and_strip_branch(struct strbuf *sb,
-                                 const char **branch,
+                                 char **branch,
                                  const char *path)
 {
        unsigned char sha1[20];
@@ -994,52 +994,62 @@ static void read_and_strip_branch(struct strbuf *sb,
                strbuf_addstr(sb, abbrev);
                *branch = sb->buf;
        } else if (!strcmp(sb->buf, "detached HEAD")) /* rebase */
-               ;
+               *branch = NULL;
        else                    /* bisect */
                *branch = sb->buf;
+       if (*branch)
+               *branch = xstrdup(*branch);
 }
 
-static void wt_status_print_state(struct wt_status *s)
+void wt_status_get_state(struct wt_status_state *state)
 {
-       const char *state_color = color(WT_STATUS_HEADER, s);
        struct strbuf branch = STRBUF_INIT;
        struct strbuf onto = STRBUF_INIT;
-       struct wt_status_state state;
        struct stat st;
 
-       memset(&state, 0, sizeof(state));
+       memset(state, 0, sizeof(*state));
 
        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;
-                       read_and_strip_branch(&branch, &state.branch,
+                       state->rebase_in_progress = 1;
+                       read_and_strip_branch(&branch, &state->branch,
                                              "rebase-apply/head-name");
-                       read_and_strip_branch(&onto, &state.onto,
+                       read_and_strip_branch(&onto, &state->onto,
                                              "rebase-apply/onto");
                }
        } 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;
-               read_and_strip_branch(&branch, &state.branch,
+                       state->rebase_in_progress = 1;
+               read_and_strip_branch(&branch, &state->branch,
                                      "rebase-merge/head-name");
-               read_and_strip_branch(&onto, &state.onto,
+               read_and_strip_branch(&onto, &state->onto,
                                      "rebase-merge/onto");
        } 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;
-               read_and_strip_branch(&branch, &state.branch,
+               state->bisect_in_progress = 1;
+               read_and_strip_branch(&branch, &state->branch,
                                      "BISECT_START");
        }
+       strbuf_release(&branch);
+       strbuf_release(&onto);
+}
+
+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(&state);
 
        if (state.merge_in_progress)
                show_merge_in_progress(s, &state, state_color);
@@ -1051,8 +1061,8 @@ static void wt_status_print_state(struct wt_status *s)
                show_cherry_pick_in_progress(s, &state, state_color);
        if (state.bisect_in_progress)
                show_bisect_in_progress(s, &state, state_color);
-       strbuf_release(&branch);
-       strbuf_release(&onto);
+       free(state.branch);
+       free(state.onto);
 }
 
 void wt_status_print(struct wt_status *s)
diff --git a/wt-status.h b/wt-status.h
index 81e1dcf..5ddcbf6 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -79,13 +79,14 @@ struct wt_status_state {
        int rebase_interactive_in_progress;
        int cherry_pick_in_progress;
        int bisect_in_progress;
-       const char *branch;
-       const char *onto;
+       char *branch;
+       char *onto;
 };
 
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
 void wt_status_collect(struct wt_status *s);
+void wt_status_get_state(struct wt_status_state *state);
 
 void wt_shortstatus_print(struct wt_status *s);
 void wt_porcelain_print(struct wt_status *s);
-- 
1.8.1.2.536.gf441e6d

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