Allow the interface user to decide how to handle a progress update.

Signed-off-by: Jeff Smith <whydo...@gmail.com>
---
 builtin/blame.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/builtin/blame.c b/builtin/blame.c
index 1b53325..d05907b 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -391,6 +391,9 @@ struct blame_scoreboard {
 
        /* callbacks */
        void(*on_sanity_fail)(struct blame_scoreboard *, int);
+       void(*found_guilty_entry)(struct blame_entry *, void *);
+
+       void *found_guilty_entry_data;
 };
 
 static void sanity_check_refcnt(struct blame_scoreboard *);
@@ -1729,9 +1732,10 @@ static int emit_one_suspect_detail(struct blame_origin 
*suspect, int repeat)
  * The blame_entry is found to be guilty for the range.
  * Show it in incremental output.
  */
-static void found_guilty_entry(struct blame_entry *ent,
-                          struct progress_info *pi)
+static void found_guilty_entry(struct blame_entry *ent, void *data)
 {
+       struct progress_info *pi = (struct progress_info *)data;
+
        if (incremental) {
                struct blame_origin *suspect = ent->suspect;
 
@@ -1754,11 +1758,6 @@ static void assign_blame(struct blame_scoreboard *sb, 
int opt)
 {
        struct rev_info *revs = sb->revs;
        struct commit *commit = prio_queue_get(&sb->commits);
-       struct progress_info pi = { NULL, 0 };
-
-       if (show_progress)
-               pi.progress = start_progress_delay(_("Blaming lines"),
-                                                  sb->num_lines, 50, 1);
 
        while (commit) {
                struct blame_entry *ent;
@@ -1800,7 +1799,8 @@ static void assign_blame(struct blame_scoreboard *sb, int 
opt)
                        suspect->guilty = 1;
                        for (;;) {
                                struct blame_entry *next = ent->next;
-                               found_guilty_entry(ent, &pi);
+                               if (sb->found_guilty_entry)
+                                       sb->found_guilty_entry(ent, 
sb->found_guilty_entry_data);
                                if (next) {
                                        ent = next;
                                        continue;
@@ -1816,8 +1816,6 @@ static void assign_blame(struct blame_scoreboard *sb, int 
opt)
                if (sb->debug) /* sanity */
                        sanity_check_refcnt(sb);
        }
-
-       stop_progress(&pi.progress);
 }
 
 static const char *format_time(timestamp_t time, const char *tz_str,
@@ -2550,6 +2548,7 @@ int cmd_blame(int argc, const char **argv, const char 
*prefix)
        char *final_commit_name = NULL;
        enum object_type type;
        struct commit *final_commit = NULL;
+       struct progress_info pi = { NULL, 0 };
 
        struct string_list range_list = STRING_LIST_INIT_NODUP;
        int output_option = 0, opt = 0;
@@ -2905,8 +2904,16 @@ int cmd_blame(int argc, const char **argv, const char 
*prefix)
 
        read_mailmap(&mailmap, NULL);
 
+       sb.found_guilty_entry = &found_guilty_entry;
+       sb.found_guilty_entry_data = &pi;
+       if (show_progress)
+               pi.progress = start_progress_delay(_("Blaming lines"),
+                                                  sb.num_lines, 50, 1);
+
        assign_blame(&sb, opt);
 
+       stop_progress(&pi.progress);
+
        if (!incremental)
                setup_pager();
 
-- 
2.9.3

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