Imported Upstream version 2.23.3
[platform/upstream/git.git] / wt-status.c
index 234e77a..9f6c65a 100644 (file)
@@ -17,6 +17,9 @@
 #include "utf8.h"
 #include "worktree.h"
 #include "lockfile.h"
+#include "sequencer.h"
+
+#define AB_DELAY_WARNING_IN_MS (2 * 1000)
 
 static const char cut_line[] =
 "------------------------ >8 ------------------------\n";
@@ -119,17 +122,16 @@ static void status_printf_more(struct wt_status *s, const char *color,
        va_end(ap);
 }
 
-void wt_status_prepare(struct wt_status *s)
+void wt_status_prepare(struct repository *r, struct wt_status *s)
 {
-       unsigned char sha1[20];
-
        memset(s, 0, sizeof(*s));
+       s->repo = r;
        memcpy(s->color_palette, default_wt_status_colors,
               sizeof(default_wt_status_colors));
        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
        s->use_color = -1;
        s->relative_paths = 1;
-       s->branch = resolve_refdup("HEAD", 0, sha1, NULL);
+       s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
        s->reference = "HEAD";
        s->fp = stdout;
        s->index_file = get_index_file();
@@ -137,7 +139,12 @@ void wt_status_prepare(struct wt_status *s)
        s->untracked.strdup_strings = 1;
        s->ignored.strdup_strings = 1;
        s->show_branch = -1;  /* unspecified */
+       s->show_stash = 0;
+       s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
        s->display_comment_prefix = 0;
+       s->detect_rename = -1;
+       s->rename_score = -1;
+       s->rename_limit = -1;
 }
 
 static void wt_longstatus_print_unmerged_header(struct wt_status *s)
@@ -174,9 +181,15 @@ static void wt_longstatus_print_unmerged_header(struct wt_status *s)
                return;
        if (s->whence != FROM_COMMIT)
                ;
-       else if (!s->is_initial)
-               status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
-       else
+       else if (!s->is_initial) {
+               if (!strcmp(s->reference, "HEAD"))
+                       status_printf_ln(s, c,
+                                        _("  (use \"git restore --staged <file>...\" to unstage)"));
+               else
+                       status_printf_ln(s, c,
+                                        _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
+                                        s->reference);
+       } else
                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 
        if (!both_deleted) {
@@ -189,7 +202,6 @@ static void wt_longstatus_print_unmerged_header(struct wt_status *s)
        } else {
                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
        }
-       status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_longstatus_print_cached_header(struct wt_status *s)
@@ -201,11 +213,16 @@ static void wt_longstatus_print_cached_header(struct wt_status *s)
                return;
        if (s->whence != FROM_COMMIT)
                ; /* NEEDSWORK: use "git reset --unresolve"??? */
-       else if (!s->is_initial)
-               status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
-       else
+       else if (!s->is_initial) {
+               if (!strcmp(s->reference, "HEAD"))
+                       status_printf_ln(s, c
+                                        , _("  (use \"git restore --staged <file>...\" to unstage)"));
+               else
+                       status_printf_ln(s, c,
+                                        _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
+                                        s->reference);
+       } else
                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
-       status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_longstatus_print_dirty_header(struct wt_status *s,
@@ -221,10 +238,9 @@ static void wt_longstatus_print_dirty_header(struct wt_status *s,
                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
        else
                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
-       status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
+       status_printf_ln(s, c, _("  (use \"git restore <file>...\" to discard changes in working directory)"));
        if (has_dirty_submodules)
                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
-       status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_longstatus_print_other_header(struct wt_status *s,
@@ -236,7 +252,6 @@ static void wt_longstatus_print_other_header(struct wt_status *s,
        if (!s->hints)
                return;
        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
-       status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_longstatus_print_trailer(struct wt_status *s)
@@ -264,7 +279,7 @@ static const char *wt_status_unmerged_status_string(int stagemask)
        case 7:
                return _("both modified:");
        default:
-               die("BUG: unhandled unmerged status %x", stagemask);
+               BUG("unhandled unmerged status %x", stagemask);
        }
 }
 
@@ -361,8 +376,6 @@ static void wt_longstatus_print_change_data(struct wt_status *s,
        switch (change_type) {
        case WT_STATUS_UPDATED:
                status = d->index_status;
-               if (d->head_path)
-                       one_name = d->head_path;
                break;
        case WT_STATUS_CHANGED:
                if (d->new_submodule_commits || d->dirty_submodule) {
@@ -379,20 +392,28 @@ static void wt_longstatus_print_change_data(struct wt_status *s,
                status = d->worktree_status;
                break;
        default:
-               die("BUG: unhandled change_type %d in wt_longstatus_print_change_data",
+               BUG("unhandled change_type %d in wt_longstatus_print_change_data",
                    change_type);
        }
 
+       /*
+        * Only pick up the rename it's relevant. If the rename is for
+        * the changed section and we're printing the updated section,
+        * ignore it.
+        */
+       if (d->rename_status == status)
+               one_name = d->rename_source;
+
        one = quote_path(one_name, s->prefix, &onebuf);
        two = quote_path(two_name, s->prefix, &twobuf);
 
        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
        what = wt_status_diff_status_string(status);
        if (!what)
-               die("BUG: unhandled diff status %c", status);
+               BUG("unhandled diff status %c", status);
        len = label_width - utf8_strwidth(what);
        assert(len >= 0);
-       if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
+       if (one_name != two_name)
                status_printf_more(s, c, "%s%.*s%s -> %s",
                                   what, len, padding, one, two);
        else
@@ -407,6 +428,17 @@ static void wt_longstatus_print_change_data(struct wt_status *s,
        strbuf_release(&twobuf);
 }
 
+static char short_submodule_status(struct wt_status_change_data *d)
+{
+       if (d->new_submodule_commits)
+               return 'M';
+       if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
+               return 'm';
+       if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
+               return '?';
+       return d->worktree_status;
+}
+
 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                                         struct diff_options *options,
                                         void *data)
@@ -423,7 +455,7 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                struct wt_status_change_data *d;
 
                p = q->queue[i];
-               it = string_list_insert(&s->change, p->one->path);
+               it = string_list_insert(&s->change, p->two->path);
                d = it->util;
                if (!d) {
                        d = xcalloc(1, sizeof(*d));
@@ -431,10 +463,13 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                }
                if (!d->worktree_status)
                        d->worktree_status = p->status;
-               d->dirty_submodule = p->two->dirty_submodule;
-               if (S_ISGITLINK(p->two->mode))
-                       d->new_submodule_commits = !!oidcmp(&p->one->oid,
-                                                           &p->two->oid);
+               if (S_ISGITLINK(p->two->mode)) {
+                       d->dirty_submodule = p->two->dirty_submodule;
+                       d->new_submodule_commits = !oideq(&p->one->oid,
+                                                         &p->two->oid);
+                       if (s->status_format == STATUS_FORMAT_SHORT)
+                               d->worktree_status = short_submodule_status(d);
+               }
 
                switch (p->status) {
                case DIFF_STATUS_ADDED:
@@ -447,6 +482,14 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                        /* mode_worktree is zero for a delete. */
                        break;
 
+               case DIFF_STATUS_COPIED:
+               case DIFF_STATUS_RENAMED:
+                       if (d->rename_status)
+                               BUG("multiple renames on the same target? how?");
+                       d->rename_source = xstrdup(p->one->path);
+                       d->rename_score = p->score * 100 / MAX_SCORE;
+                       d->rename_status = p->status;
+                       /* fallthru */
                case DIFF_STATUS_MODIFIED:
                case DIFF_STATUS_TYPE_CHANGED:
                case DIFF_STATUS_UNMERGED:
@@ -455,27 +498,27 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                        oidcpy(&d->oid_index, &p->one->oid);
                        break;
 
-               case DIFF_STATUS_UNKNOWN:
-                       die("BUG: worktree status unknown???");
+               default:
+                       BUG("unhandled diff-files status '%c'", p->status);
                        break;
                }
 
        }
 }
 
-static int unmerged_mask(const char *path)
+static int unmerged_mask(struct index_state *istate, const char *path)
 {
        int pos, mask;
        const struct cache_entry *ce;
 
-       pos = cache_name_pos(path, strlen(path));
+       pos = index_name_pos(istate, path, strlen(path));
        if (0 <= pos)
                return 0;
 
        mask = 0;
        pos = -pos-1;
-       while (pos < active_nr) {
-               ce = active_cache[pos++];
+       while (pos < istate->cache_nr) {
+               ce = istate->cache[pos++];
                if (strcmp(ce->name, path) || !ce_stage(ce))
                        break;
                mask |= (1 << (ce_stage(ce) - 1));
@@ -509,17 +552,22 @@ static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
                        /* Leave {mode,oid}_head zero for an add. */
                        d->mode_index = p->two->mode;
                        oidcpy(&d->oid_index, &p->two->oid);
+                       s->committable = 1;
                        break;
                case DIFF_STATUS_DELETED:
                        d->mode_head = p->one->mode;
                        oidcpy(&d->oid_head, &p->one->oid);
+                       s->committable = 1;
                        /* Leave {mode,oid}_index zero for a delete. */
                        break;
 
                case DIFF_STATUS_COPIED:
                case DIFF_STATUS_RENAMED:
-                       d->head_path = xstrdup(p->one->path);
-                       d->score = p->score * 100 / MAX_SCORE;
+                       if (d->rename_status)
+                               BUG("multiple renames on the same target? how?");
+                       d->rename_source = xstrdup(p->one->path);
+                       d->rename_score = p->score * 100 / MAX_SCORE;
+                       d->rename_status = p->status;
                        /* fallthru */
                case DIFF_STATUS_MODIFIED:
                case DIFF_STATUS_TYPE_CHANGED:
@@ -527,15 +575,21 @@ static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
                        d->mode_index = p->two->mode;
                        oidcpy(&d->oid_head, &p->one->oid);
                        oidcpy(&d->oid_index, &p->two->oid);
+                       s->committable = 1;
                        break;
                case DIFF_STATUS_UNMERGED:
-                       d->stagemask = unmerged_mask(p->two->path);
+                       d->stagemask = unmerged_mask(s->repo->index,
+                                                    p->two->path);
                        /*
                         * Don't bother setting {mode,oid}_{head,index} since the print
                         * code will output the stage values directly and not use the
                         * values in these fields.
                         */
                        break;
+
+               default:
+                       BUG("unhandled diff-index status '%c'", p->status);
+                       break;
                }
        }
 }
@@ -544,19 +598,22 @@ static void wt_status_collect_changes_worktree(struct wt_status *s)
 {
        struct rev_info rev;
 
-       init_revisions(&rev, NULL);
+       repo_init_revisions(s->repo, &rev, NULL);
        setup_revisions(0, NULL, &rev, NULL);
        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
-       DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
+       rev.diffopt.flags.dirty_submodules = 1;
        rev.diffopt.ita_invisible_in_index = 1;
        if (!s->show_untracked_files)
-               DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
+               rev.diffopt.flags.ignore_untracked_in_submodules = 1;
        if (s->ignore_submodule_arg) {
-               DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
+               rev.diffopt.flags.override_submodule_config = 1;
                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
        }
        rev.diffopt.format_callback = wt_status_collect_changed_cb;
        rev.diffopt.format_callback_data = s;
+       rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
+       rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
+       rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
        copy_pathspec(&rev.prune_data, &s->pathspec);
        run_diff_files(&rev, 0);
 }
@@ -566,12 +623,12 @@ static void wt_status_collect_changes_index(struct wt_status *s)
        struct rev_info rev;
        struct setup_revision_opt opt;
 
-       init_revisions(&rev, NULL);
+       repo_init_revisions(s->repo, &rev, NULL);
        memset(&opt, 0, sizeof(opt));
-       opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
+       opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
        setup_revisions(0, NULL, &rev, &opt);
 
-       DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
+       rev.diffopt.flags.override_submodule_config = 1;
        rev.diffopt.ita_invisible_in_index = 1;
        if (s->ignore_submodule_arg) {
                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
@@ -590,23 +647,24 @@ static void wt_status_collect_changes_index(struct wt_status *s)
        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
        rev.diffopt.format_callback = wt_status_collect_updated_cb;
        rev.diffopt.format_callback_data = s;
-       rev.diffopt.detect_rename = 1;
-       rev.diffopt.rename_limit = 200;
-       rev.diffopt.break_opt = 0;
+       rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
+       rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
+       rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
        copy_pathspec(&rev.prune_data, &s->pathspec);
        run_diff_index(&rev, 1);
 }
 
 static void wt_status_collect_changes_initial(struct wt_status *s)
 {
+       struct index_state *istate = s->repo->index;
        int i;
 
-       for (i = 0; i < active_nr; i++) {
+       for (i = 0; i < istate->cache_nr; i++) {
                struct string_list_item *it;
                struct wt_status_change_data *d;
-               const struct cache_entry *ce = active_cache[i];
+               const struct cache_entry *ce = istate->cache[i];
 
-               if (!ce_path_match(ce, &s->pathspec, NULL))
+               if (!ce_path_match(istate, ce, &s->pathspec, NULL))
                        continue;
                if (ce_intent_to_add(ce))
                        continue;
@@ -624,11 +682,13 @@ static void wt_status_collect_changes_initial(struct wt_status *s)
                         * code will output the stage values directly and not use the
                         * values in these fields.
                         */
+                       s->committable = 1;
                } else {
                        d->index_status = DIFF_STATUS_ADDED;
                        /* Leave {mode,oid}_head zero for adds. */
                        d->mode_index = ce->ce_mode;
                        oidcpy(&d->oid_index, &ce->oid);
+                       s->committable = 1;
                }
        }
 }
@@ -638,6 +698,7 @@ static void wt_status_collect_untracked(struct wt_status *s)
        int i;
        struct dir_struct dir;
        uint64_t t_begin = getnanotime();
+       struct index_state *istate = s->repo->index;
 
        if (!s->show_untracked_files)
                return;
@@ -646,26 +707,31 @@ static void wt_status_collect_untracked(struct wt_status *s)
        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
                dir.flags |=
                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
-       if (s->show_ignored_files)
+       if (s->show_ignored_mode) {
                dir.flags |= DIR_SHOW_IGNORED_TOO;
-       else
-               dir.untracked = the_index.untracked;
+
+               if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
+                       dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
+       } else {
+               dir.untracked = istate->untracked;
+       }
+
        setup_standard_excludes(&dir);
 
-       fill_directory(&dir, &s->pathspec);
+       fill_directory(&dir, istate, &s->pathspec);
 
        for (i = 0; i < dir.nr; i++) {
                struct dir_entry *ent = dir.entries[i];
-               if (cache_name_is_other(ent->name, ent->len) &&
-                   dir_path_match(ent, &s->pathspec, 0, NULL))
+               if (index_name_is_other(istate, ent->name, ent->len) &&
+                   dir_path_match(istate, ent, &s->pathspec, 0, NULL))
                        string_list_insert(&s->untracked, ent->name);
                free(ent);
        }
 
        for (i = 0; i < dir.ignored_nr; i++) {
                struct dir_entry *ent = dir.ignored[i];
-               if (cache_name_is_other(ent->name, ent->len) &&
-                   dir_path_match(ent, &s->pathspec, 0, NULL))
+               if (index_name_is_other(istate, ent->name, ent->len) &&
+                   dir_path_match(istate, ent, &s->pathspec, 0, NULL))
                        string_list_insert(&s->ignored, ent->name);
                free(ent);
        }
@@ -678,15 +744,49 @@ static void wt_status_collect_untracked(struct wt_status *s)
                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 }
 
+static int has_unmerged(struct wt_status *s)
+{
+       int i;
+
+       for (i = 0; i < s->change.nr; i++) {
+               struct wt_status_change_data *d;
+               d = s->change.items[i].util;
+               if (d->stagemask)
+                       return 1;
+       }
+       return 0;
+}
+
 void wt_status_collect(struct wt_status *s)
 {
+       trace2_region_enter("status", "worktrees", s->repo);
        wt_status_collect_changes_worktree(s);
+       trace2_region_leave("status", "worktrees", s->repo);
 
-       if (s->is_initial)
+       if (s->is_initial) {
+               trace2_region_enter("status", "initial", s->repo);
                wt_status_collect_changes_initial(s);
-       else
+               trace2_region_leave("status", "initial", s->repo);
+       } else {
+               trace2_region_enter("status", "index", s->repo);
                wt_status_collect_changes_index(s);
+               trace2_region_leave("status", "index", s->repo);
+       }
+
+       trace2_region_enter("status", "untracked", s->repo);
        wt_status_collect_untracked(s);
+       trace2_region_leave("status", "untracked", s->repo);
+
+       wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
+       if (s->state.merge_in_progress && !has_unmerged(s))
+               s->committable = 1;
+}
+
+void wt_status_collect_free_buffers(struct wt_status *s)
+{
+       free(s->state.branch);
+       free(s->state.onto);
+       free(s->state.detached_from);
 }
 
 static void wt_longstatus_print_unmerged(struct wt_status *s)
@@ -727,7 +827,6 @@ static void wt_longstatus_print_updated(struct wt_status *s)
                        continue;
                if (!shown_header) {
                        wt_longstatus_print_cached_header(s);
-                       s->commitable = 1;
                        shown_header = 1;
                }
                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
@@ -788,6 +887,27 @@ static void wt_longstatus_print_changed(struct wt_status *s)
        wt_longstatus_print_trailer(s);
 }
 
+static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
+                           const char *email, timestamp_t timestamp, int tz,
+                           const char *message, void *cb_data)
+{
+       int *c = cb_data;
+       (*c)++;
+       return 0;
+}
+
+static void wt_longstatus_print_stash_summary(struct wt_status *s)
+{
+       int stash_count = 0;
+
+       for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
+       if (stash_count > 0)
+               status_printf_ln(s, GIT_COLOR_NORMAL,
+                                Q_("Your stash currently has %d entry",
+                                   "Your stash currently has %d entries", stash_count),
+                                stash_count);
+}
+
 static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 {
        struct child_process sm_summary = CHILD_PROCESS_INIT;
@@ -883,26 +1003,33 @@ conclude:
        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 }
 
-void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
+size_t wt_status_locate_end(const char *s, size_t len)
 {
        const char *p;
        struct strbuf pattern = STRBUF_INIT;
 
        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
-       if (starts_with(buf->buf, pattern.buf + 1))
-               strbuf_setlen(buf, 0);
-       else if ((p = strstr(buf->buf, pattern.buf)))
-               strbuf_setlen(buf, p - buf->buf + 1);
+       if (starts_with(s, pattern.buf + 1))
+               len = 0;
+       else if ((p = strstr(s, pattern.buf)))
+               len = p - s + 1;
        strbuf_release(&pattern);
+       return len;
+}
+
+void wt_status_append_cut_line(struct strbuf *buf)
+{
+       const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
+
+       strbuf_commented_addf(buf, "%s", cut_line);
+       strbuf_add_commented_lines(buf, explanation, strlen(explanation));
 }
 
 void wt_status_add_cut_line(FILE *fp)
 {
-       const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
        struct strbuf buf = STRBUF_INIT;
 
-       fprintf(fp, "%c %s", comment_line_char, cut_line);
-       strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
+       wt_status_append_cut_line(&buf);
        fputs(buf.buf, fp);
        strbuf_release(&buf);
 }
@@ -914,16 +1041,18 @@ static void wt_longstatus_print_verbose(struct wt_status *s)
        int dirty_submodules;
        const char *c = color(WT_STATUS_HEADER, s);
 
-       init_revisions(&rev, NULL);
-       DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
+       repo_init_revisions(s->repo, &rev, NULL);
+       rev.diffopt.flags.allow_textconv = 1;
        rev.diffopt.ita_invisible_in_index = 1;
 
        memset(&opt, 0, sizeof(opt));
-       opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
+       opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
        setup_revisions(0, NULL, &rev, &opt);
 
        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
-       rev.diffopt.detect_rename = 1;
+       rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
+       rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
+       rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
        rev.diffopt.file = s->fp;
        rev.diffopt.close_file = 0;
        /*
@@ -938,7 +1067,7 @@ static void wt_longstatus_print_verbose(struct wt_status *s)
                rev.diffopt.use_color = 0;
                wt_status_add_cut_line(s->fp);
        }
-       if (s->verbose > 1 && s->commitable) {
+       if (s->verbose > 1 && s->committable) {
                /* print_updated() printed a header, so do we */
                if (s->fp != stdout)
                        wt_longstatus_print_trailer(s);
@@ -966,14 +1095,29 @@ static void wt_longstatus_print_tracking(struct wt_status *s)
        struct branch *branch;
        char comment_line_string[3];
        int i;
+       uint64_t t_begin = 0;
 
        assert(s->branch && !s->is_initial);
        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
                return;
        branch = branch_get(branch_name);
-       if (!format_tracking_info(branch, &sb))
+
+       t_begin = getnanotime();
+
+       if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
                return;
 
+       if (advice_status_ahead_behind_warning &&
+           s->ahead_behind_flags == AHEAD_BEHIND_FULL) {
+               uint64_t t_delta_in_ms = (getnanotime() - t_begin) / 1000000;
+               if (t_delta_in_ms > AB_DELAY_WARNING_IN_MS) {
+                       strbuf_addf(&sb, _("\n"
+                                          "It took %.2f seconds to compute the branch ahead/behind values.\n"
+                                          "You can use '--no-ahead-behind' to avoid this.\n"),
+                                   t_delta_in_ms / 1000.0);
+               }
+       }
+
        i = 0;
        if (s->display_comment_prefix) {
                comment_line_string[i++] = comment_line_char;
@@ -989,25 +1133,12 @@ static void wt_longstatus_print_tracking(struct wt_status *s)
                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
                                 comment_line_char);
        else
-               fputs("", s->fp);
-}
-
-static int has_unmerged(struct wt_status *s)
-{
-       int i;
-
-       for (i = 0; i < s->change.nr; i++) {
-               struct wt_status_change_data *d;
-               d = s->change.items[i].util;
-               if (d->stagemask)
-                       return 1;
-       }
-       return 0;
+               fputs("\n", s->fp);
+       strbuf_release(&sb);
 }
 
 static void show_merge_in_progress(struct wt_status *s,
-                               struct wt_status_state *state,
-                               const char *color)
+                                  const char *color)
 {
        if (has_unmerged(s)) {
                status_printf_ln(s, color, _("You have unmerged paths."));
@@ -1018,7 +1149,6 @@ static void show_merge_in_progress(struct wt_status *s,
                                         _("  (use \"git merge --abort\" to abort the merge)"));
                }
        } else {
-               s-> commitable = 1;
                status_printf_ln(s, color,
                        _("All conflicts fixed but you are still merging."));
                if (s->hints)
@@ -1029,16 +1159,15 @@ static void show_merge_in_progress(struct wt_status *s,
 }
 
 static void show_am_in_progress(struct wt_status *s,
-                               struct wt_status_state *state,
                                const char *color)
 {
        status_printf_ln(s, color,
                _("You are in the middle of an am session."));
-       if (state->am_empty_patch)
+       if (s->state.am_empty_patch)
                status_printf_ln(s, color,
                        _("The current patch is empty."));
        if (s->hints) {
-               if (!state->am_empty_patch)
+               if (!s->state.am_empty_patch)
                        status_printf_ln(s, color,
                                _("  (fix conflicts and then run \"git am --continue\")"));
                status_printf_ln(s, color,
@@ -1052,7 +1181,8 @@ static void show_am_in_progress(struct wt_status *s,
 static char *read_line_from_git_path(const char *filename)
 {
        struct strbuf buf = STRBUF_INIT;
-       FILE *fp = fopen(git_path("%s", filename), "r");
+       FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
+
        if (!fp) {
                strbuf_release(&buf);
                return NULL;
@@ -1069,29 +1199,29 @@ static char *read_line_from_git_path(const char *filename)
 static int split_commit_in_progress(struct wt_status *s)
 {
        int split_in_progress = 0;
-       char *head = read_line_from_git_path("HEAD");
-       char *orig_head = read_line_from_git_path("ORIG_HEAD");
-       char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
-       char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
+       char *head, *orig_head, *rebase_amend, *rebase_orig_head;
 
-       if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
+       if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
            !s->branch || strcmp(s->branch, "HEAD"))
-               return split_in_progress;
+               return 0;
 
-       if (!strcmp(rebase_amend, rebase_orig_head)) {
-               if (strcmp(head, rebase_amend))
-                       split_in_progress = 1;
-       } else if (strcmp(orig_head, rebase_orig_head)) {
-               split_in_progress = 1;
-       }
+       head = read_line_from_git_path("HEAD");
+       orig_head = read_line_from_git_path("ORIG_HEAD");
+       rebase_amend = read_line_from_git_path("rebase-merge/amend");
+       rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 
-       if (!s->amend && !s->nowarn && !s->workdir_dirty)
-               split_in_progress = 0;
+       if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
+               ; /* fall through, no split in progress */
+       else if (!strcmp(rebase_amend, rebase_orig_head))
+               split_in_progress = !!strcmp(head, rebase_amend);
+       else if (strcmp(orig_head, rebase_orig_head))
+               split_in_progress = 1;
 
        free(head);
        free(orig_head);
        free(rebase_amend);
        free(rebase_orig_head);
+
        return split_in_progress;
 }
 
@@ -1110,21 +1240,23 @@ static void abbrev_sha1_in_line(struct strbuf *line)
        int i;
 
        if (starts_with(line->buf, "exec ") ||
-           starts_with(line->buf, "x "))
+           starts_with(line->buf, "x ") ||
+           starts_with(line->buf, "label ") ||
+           starts_with(line->buf, "l "))
                return;
 
        split = strbuf_split_max(line, ' ', 3);
        if (split[0] && split[1]) {
-               unsigned char sha1[20];
+               struct object_id oid;
 
                /*
                 * strbuf_split_max left a space. Trim it and re-add
                 * it after abbreviation.
                 */
                strbuf_trim(split[1]);
-               if (!get_sha1(split[1]->buf, sha1)) {
+               if (!get_oid(split[1]->buf, &oid)) {
                        strbuf_reset(split[1]);
-                       strbuf_add_unique_abbrev(split[1], sha1,
+                       strbuf_add_unique_abbrev(split[1], &oid,
                                                 DEFAULT_ABBREV);
                        strbuf_addch(split[1], ' ');
                        strbuf_reset(line);
@@ -1155,14 +1287,15 @@ static int read_rebase_todolist(const char *fname, struct string_list *lines)
                abbrev_sha1_in_line(&line);
                string_list_append(lines, line.buf);
        }
+       fclose(f);
+       strbuf_release(&line);
        return 0;
 }
 
 static void show_rebase_information(struct wt_status *s,
-                                       struct wt_status_state *state,
-                                       const char *color)
+                                   const char *color)
 {
-       if (state->rebase_interactive_in_progress) {
+       if (s->state.rebase_interactive_in_progress) {
                int i;
                int nr_lines_to_show = 2;
 
@@ -1213,28 +1346,26 @@ static void show_rebase_information(struct wt_status *s,
 }
 
 static void print_rebase_state(struct wt_status *s,
-                               struct wt_status_state *state,
-                               const char *color)
+                              const char *color)
 {
-       if (state->branch)
+       if (s->state.branch)
                status_printf_ln(s, color,
                                 _("You are currently rebasing branch '%s' on '%s'."),
-                                state->branch,
-                                state->onto);
+                                s->state.branch,
+                                s->state.onto);
        else
                status_printf_ln(s, color,
                                 _("You are currently rebasing."));
 }
 
 static void show_rebase_in_progress(struct wt_status *s,
-                               struct wt_status_state *state,
-                               const char *color)
+                                   const char *color)
 {
        struct stat st;
 
-       show_rebase_information(s, state, color);
+       show_rebase_information(s, color);
        if (has_unmerged(s)) {
-               print_rebase_state(s, state, color);
+               print_rebase_state(s, color);
                if (s->hints) {
                        status_printf_ln(s, color,
                                _("  (fix conflicts and then run \"git rebase --continue\")"));
@@ -1243,17 +1374,18 @@ static void show_rebase_in_progress(struct wt_status *s,
                        status_printf_ln(s, color,
                                _("  (use \"git rebase --abort\" to check out the original branch)"));
                }
-       } else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
-               print_rebase_state(s, state, color);
+       } else if (s->state.rebase_in_progress ||
+                  !stat(git_path_merge_msg(s->repo), &st)) {
+               print_rebase_state(s, color);
                if (s->hints)
                        status_printf_ln(s, color,
                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
        } else if (split_commit_in_progress(s)) {
-               if (state->branch)
+               if (s->state.branch)
                        status_printf_ln(s, color,
                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
-                                        state->branch,
-                                        state->onto);
+                                        s->state.branch,
+                                        s->state.onto);
                else
                        status_printf_ln(s, color,
                                         _("You are currently splitting a commit during a rebase."));
@@ -1261,11 +1393,11 @@ static void show_rebase_in_progress(struct wt_status *s,
                        status_printf_ln(s, color,
                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
        } else {
-               if (state->branch)
+               if (s->state.branch)
                        status_printf_ln(s, color,
                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
-                                        state->branch,
-                                        state->onto);
+                                        s->state.branch,
+                                        s->state.onto);
                else
                        status_printf_ln(s, color,
                                         _("You are currently editing a commit during a rebase."));
@@ -1280,15 +1412,24 @@ static void show_rebase_in_progress(struct wt_status *s,
 }
 
 static void show_cherry_pick_in_progress(struct wt_status *s,
-                                       struct wt_status_state *state,
-                                       const char *color)
+                                        const char *color)
 {
-       status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
-                       find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
+       if (is_null_oid(&s->state.cherry_pick_head_oid))
+               status_printf_ln(s, color,
+                       _("Cherry-pick currently in progress."));
+       else
+               status_printf_ln(s, color,
+                       _("You are currently cherry-picking commit %s."),
+                       find_unique_abbrev(&s->state.cherry_pick_head_oid,
+                                          DEFAULT_ABBREV));
+
        if (s->hints) {
                if (has_unmerged(s))
                        status_printf_ln(s, color,
                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
+               else if (is_null_oid(&s->state.cherry_pick_head_oid))
+                       status_printf_ln(s, color,
+                               _("  (run \"git cherry-pick --continue\" to continue)"));
                else
                        status_printf_ln(s, color,
                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
@@ -1299,15 +1440,23 @@ static void show_cherry_pick_in_progress(struct wt_status *s,
 }
 
 static void show_revert_in_progress(struct wt_status *s,
-                                       struct wt_status_state *state,
-                                       const char *color)
+                                   const char *color)
 {
-       status_printf_ln(s, color, _("You are currently reverting commit %s."),
-                        find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
+       if (is_null_oid(&s->state.revert_head_oid))
+               status_printf_ln(s, color,
+                       _("Revert currently in progress."));
+       else
+               status_printf_ln(s, color,
+                       _("You are currently reverting commit %s."),
+                       find_unique_abbrev(&s->state.revert_head_oid,
+                                          DEFAULT_ABBREV));
        if (s->hints) {
                if (has_unmerged(s))
                        status_printf_ln(s, color,
                                _("  (fix conflicts and run \"git revert --continue\")"));
+               else if (is_null_oid(&s->state.revert_head_oid))
+                       status_printf_ln(s, color,
+                               _("  (run \"git revert --continue\" to continue)"));
                else
                        status_printf_ln(s, color,
                                _("  (all conflicts fixed: run \"git revert --continue\")"));
@@ -1318,13 +1467,12 @@ static void show_revert_in_progress(struct wt_status *s,
 }
 
 static void show_bisect_in_progress(struct wt_status *s,
-                               struct wt_status_state *state,
-                               const char *color)
+                                   const char *color)
 {
-       if (state->branch)
+       if (s->state.branch)
                status_printf_ln(s, color,
                                 _("You are currently bisecting, started from branch '%s'."),
-                                state->branch);
+                                s->state.branch);
        else
                status_printf_ln(s, color,
                                 _("You are currently bisecting."));
@@ -1340,7 +1488,7 @@ static void show_bisect_in_progress(struct wt_status *s,
 static char *get_branch(const struct worktree *wt, const char *path)
 {
        struct strbuf sb = STRBUF_INIT;
-       unsigned char sha1[20];
+       struct object_id oid;
        const char *branch_name;
 
        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
@@ -1354,9 +1502,9 @@ static char *get_branch(const struct worktree *wt, const char *path)
                strbuf_remove(&sb, 0, branch_name - sb.buf);
        else if (starts_with(sb.buf, "refs/"))
                ;
-       else if (!get_sha1_hex(sb.buf, sha1)) {
+       else if (!get_oid_hex(sb.buf, &oid)) {
                strbuf_reset(&sb);
-               strbuf_add_unique_abbrev(&sb, sha1, DEFAULT_ABBREV);
+               strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
                goto got_nothing;
        else                    /* bisect */
@@ -1370,11 +1518,11 @@ got_nothing:
 
 struct grab_1st_switch_cbdata {
        struct strbuf buf;
-       unsigned char nsha1[20];
+       struct object_id noid;
 };
 
-static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
-                          const char *email, unsigned long timestamp, int tz,
+static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
+                          const char *email, timestamp_t timestamp, int tz,
                           const char *message, void *cb_data)
 {
        struct grab_1st_switch_cbdata *cb = cb_data;
@@ -1387,22 +1535,23 @@ static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
                return 0;
        target += strlen(" to ");
        strbuf_reset(&cb->buf);
-       hashcpy(cb->nsha1, nsha1);
+       oidcpy(&cb->noid, noid);
        end = strchrnul(target, '\n');
        strbuf_add(&cb->buf, target, end - target);
        if (!strcmp(cb->buf.buf, "HEAD")) {
                /* HEAD is relative. Resolve it to the right reflog entry. */
                strbuf_reset(&cb->buf);
-               strbuf_add_unique_abbrev(&cb->buf, nsha1, DEFAULT_ABBREV);
+               strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
        }
        return 1;
 }
 
-static void wt_status_get_detached_from(struct wt_status_state *state)
+static void wt_status_get_detached_from(struct repository *r,
+                                       struct wt_status_state *state)
 {
        struct grab_1st_switch_cbdata cb;
        struct commit *commit;
-       unsigned char sha1[20];
+       struct object_id oid;
        char *ref = NULL;
 
        strbuf_init(&cb.buf, 0);
@@ -1411,22 +1560,22 @@ static void wt_status_get_detached_from(struct wt_status_state *state)
                return;
        }
 
-       if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
+       if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
            /* sha1 is a commit? match without further lookup */
-           (!hashcmp(cb.nsha1, sha1) ||
+           (oideq(&cb.noid, &oid) ||
             /* perhaps sha1 is a tag, try to dereference to a commit */
-            ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
-             !hashcmp(cb.nsha1, commit->object.oid.hash)))) {
+            ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
+             oideq(&cb.noid, &commit->object.oid)))) {
                const char *from = ref;
                if (!skip_prefix(from, "refs/tags/", &from))
                        skip_prefix(from, "refs/remotes/", &from);
                state->detached_from = xstrdup(from);
        } else
                state->detached_from =
-                       xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
-       hashcpy(state->detached_sha1, cb.nsha1);
-       state->detached_at = !get_sha1("HEAD", sha1) &&
-                            !hashcmp(sha1, state->detached_sha1);
+                       xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
+       oidcpy(&state->detached_oid, &cb.noid);
+       state->detached_at = !get_oid("HEAD", &oid) &&
+                            oideq(&oid, &state->detached_oid);
 
        free(ref);
        strbuf_release(&cb.buf);
@@ -1472,77 +1621,89 @@ int wt_status_check_bisect(const struct worktree *wt,
        return 0;
 }
 
-void wt_status_get_state(struct wt_status_state *state,
+void wt_status_get_state(struct repository *r,
+                        struct wt_status_state *state,
                         int get_detached_from)
 {
        struct stat st;
-       unsigned char sha1[20];
+       struct object_id oid;
+       enum replay_action action;
 
-       if (!stat(git_path_merge_head(), &st)) {
+       if (!stat(git_path_merge_head(r), &st)) {
+               wt_status_check_rebase(NULL, state);
                state->merge_in_progress = 1;
        } else if (wt_status_check_rebase(NULL, state)) {
                ;               /* all set */
-       } else if (!stat(git_path_cherry_pick_head(), &st) &&
-                       !get_sha1("CHERRY_PICK_HEAD", sha1)) {
+       } else if (!stat(git_path_cherry_pick_head(r), &st) &&
+                       !get_oid("CHERRY_PICK_HEAD", &oid)) {
                state->cherry_pick_in_progress = 1;
-               hashcpy(state->cherry_pick_head_sha1, sha1);
+               oidcpy(&state->cherry_pick_head_oid, &oid);
        }
        wt_status_check_bisect(NULL, state);
-       if (!stat(git_path_revert_head(), &st) &&
-           !get_sha1("REVERT_HEAD", sha1)) {
+       if (!stat(git_path_revert_head(r), &st) &&
+           !get_oid("REVERT_HEAD", &oid)) {
                state->revert_in_progress = 1;
-               hashcpy(state->revert_head_sha1, sha1);
+               oidcpy(&state->revert_head_oid, &oid);
+       }
+       if (!sequencer_get_last_command(r, &action)) {
+               if (action == REPLAY_PICK) {
+                       state->cherry_pick_in_progress = 1;
+                       oidcpy(&state->cherry_pick_head_oid, &null_oid);
+               } else {
+                       state->revert_in_progress = 1;
+                       oidcpy(&state->revert_head_oid, &null_oid);
+               }
        }
-
        if (get_detached_from)
-               wt_status_get_detached_from(state);
+               wt_status_get_detached_from(r, state);
 }
 
-static void wt_longstatus_print_state(struct wt_status *s,
-                                     struct wt_status_state *state)
+static void wt_longstatus_print_state(struct wt_status *s)
 {
        const char *state_color = color(WT_STATUS_HEADER, s);
-       if (state->merge_in_progress)
-               show_merge_in_progress(s, state, state_color);
-       else if (state->am_in_progress)
-               show_am_in_progress(s, state, state_color);
+       struct wt_status_state *state = &s->state;
+
+       if (state->merge_in_progress) {
+               if (state->rebase_interactive_in_progress) {
+                       show_rebase_information(s, state_color);
+                       fputs("\n", s->fp);
+               }
+               show_merge_in_progress(s, state_color);
+       } else if (state->am_in_progress)
+               show_am_in_progress(s, state_color);
        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
-               show_rebase_in_progress(s, state, state_color);
+               show_rebase_in_progress(s, state_color);
        else if (state->cherry_pick_in_progress)
-               show_cherry_pick_in_progress(s, state, state_color);
+               show_cherry_pick_in_progress(s, state_color);
        else if (state->revert_in_progress)
-               show_revert_in_progress(s, state, state_color);
+               show_revert_in_progress(s, state_color);
        if (state->bisect_in_progress)
-               show_bisect_in_progress(s, state, state_color);
+               show_bisect_in_progress(s, state_color);
 }
 
 static void wt_longstatus_print(struct wt_status *s)
 {
        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
        const char *branch_status_color = color(WT_STATUS_HEADER, s);
-       struct wt_status_state state;
-
-       memset(&state, 0, sizeof(state));
-       wt_status_get_state(&state,
-                           s->branch && !strcmp(s->branch, "HEAD"));
 
        if (s->branch) {
                const char *on_what = _("On branch ");
                const char *branch_name = s->branch;
                if (!strcmp(branch_name, "HEAD")) {
                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
-                       if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
-                               if (state.rebase_interactive_in_progress)
+                       if (s->state.rebase_in_progress ||
+                           s->state.rebase_interactive_in_progress) {
+                               if (s->state.rebase_interactive_in_progress)
                                        on_what = _("interactive rebase in progress; onto ");
                                else
                                        on_what = _("rebase in progress; onto ");
-                               branch_name = state.onto;
-                       } else if (state.detached_from) {
-                               branch_name = state.detached_from;
-                               if (state.detached_at)
-                                       on_what = _("HEAD detached at ");
+                               branch_name = s->state.onto;
+                       } else if (s->state.detached_from) {
+                               branch_name = s->state.detached_from;
+                               if (s->state.detached_at)
+                                       on_what = HEAD_DETACHED_AT;
                                else
-                                       on_what = _("HEAD detached from ");
+                                       on_what = HEAD_DETACHED_FROM;
                        } else {
                                branch_name = "";
                                on_what = _("Not currently on any branch.");
@@ -1556,14 +1717,14 @@ static void wt_longstatus_print(struct wt_status *s)
                        wt_longstatus_print_tracking(s);
        }
 
-       wt_longstatus_print_state(s, &state);
-       free(state.branch);
-       free(state.onto);
-       free(state.detached_from);
+       wt_longstatus_print_state(s);
 
        if (s->is_initial) {
                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
-               status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
+               status_printf_ln(s, color(WT_STATUS_HEADER, s),
+                                s->commit_template
+                                ? _("Initial commit")
+                                : _("No commits yet"));
                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
        }
 
@@ -1578,7 +1739,7 @@ static void wt_longstatus_print(struct wt_status *s)
        }
        if (s->show_untracked_files) {
                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
-               if (s->show_ignored_files)
+               if (s->show_ignored_mode)
                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
@@ -1588,14 +1749,14 @@ static void wt_longstatus_print(struct wt_status *s)
                                           "new files yourself (see 'git help status')."),
                                         s->untracked_in_ms / 1000.0);
                }
-       } else if (s->commitable)
+       } else if (s->committable)
                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
                        s->hints
                        ? _(" (use -u option to show untracked files)") : "");
 
        if (s->verbose)
                wt_longstatus_print_verbose(s);
-       if (!s->commitable) {
+       if (!s->committable) {
                if (s->amend)
                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
                else if (s->nowarn)
@@ -1626,6 +1787,8 @@ static void wt_longstatus_print(struct wt_status *s)
                } else
                        printf(_("nothing to commit, working tree clean\n"));
        }
+       if(s->show_stash)
+               wt_longstatus_print_stash_summary(s);
 }
 
 static void wt_shortstatus_unmerged(struct string_list_item *it,
@@ -1671,13 +1834,14 @@ static void wt_shortstatus_status(struct string_list_item *it,
        putchar(' ');
        if (s->null_termination) {
                fprintf(stdout, "%s%c", it->string, 0);
-               if (d->head_path)
-                       fprintf(stdout, "%s%c", d->head_path, 0);
+               if (d->rename_source)
+                       fprintf(stdout, "%s%c", d->rename_source, 0);
        } else {
                struct strbuf onebuf = STRBUF_INIT;
                const char *one;
-               if (d->head_path) {
-                       one = quote_path(d->head_path, s->prefix, &onebuf);
+
+               if (d->rename_source) {
+                       one = quote_path(d->rename_source, s->prefix, &onebuf);
                        if (*one != '"' && strchr(one, ' ') != NULL) {
                                putchar('"');
                                strbuf_addch(&onebuf, '"');
@@ -1720,8 +1884,9 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 
        const char *base;
+       char *short_base;
        const char *branch_name;
-       int num_ours, num_theirs;
+       int num_ours, num_theirs, sti;
        int upstream_is_gone = 0;
 
        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
@@ -1733,7 +1898,7 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
 #define LABEL(string) (s->no_gettext ? (string) : _(string))
 
        if (s->is_initial)
-               color_fprintf(s->fp, header_color, LABEL(N_("Initial commit on ")));
+               color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
 
        if (!strcmp(s->branch, "HEAD")) {
                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
@@ -1747,24 +1912,28 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
 
        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 
-       if (stat_tracking_info(branch, &num_ours, &num_theirs, &base) < 0) {
+       sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
+                                0, s->ahead_behind_flags);
+       if (sti < 0) {
                if (!base)
                        goto conclude;
 
                upstream_is_gone = 1;
        }
 
-       base = shorten_unambiguous_ref(base, 0);
+       short_base = shorten_unambiguous_ref(base, 0);
        color_fprintf(s->fp, header_color, "...");
-       color_fprintf(s->fp, branch_color_remote, "%s", base);
-       free((char *)base);
+       color_fprintf(s->fp, branch_color_remote, "%s", short_base);
+       free(short_base);
 
-       if (!upstream_is_gone && !num_ours && !num_theirs)
+       if (!upstream_is_gone && !sti)
                goto conclude;
 
        color_fprintf(s->fp, header_color, " [");
        if (upstream_is_gone) {
                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
+       } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
+               color_fprintf(s->fp, header_color, LABEL(N_("different")));
        } else if (!num_ours) {
                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
@@ -1785,34 +1954,24 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
 
 static void wt_shortstatus_print(struct wt_status *s)
 {
-       int i;
+       struct string_list_item *it;
 
        if (s->show_branch)
                wt_shortstatus_print_tracking(s);
 
-       for (i = 0; i < s->change.nr; i++) {
-               struct wt_status_change_data *d;
-               struct string_list_item *it;
+       for_each_string_list_item(it, &s->change) {
+               struct wt_status_change_data *d = it->util;
 
-               it = &(s->change.items[i]);
-               d = it->util;
                if (d->stagemask)
                        wt_shortstatus_unmerged(it, s);
                else
                        wt_shortstatus_status(it, s);
        }
-       for (i = 0; i < s->untracked.nr; i++) {
-               struct string_list_item *it;
-
-               it = &(s->untracked.items[i]);
+       for_each_string_list_item(it, &s->untracked)
                wt_shortstatus_other(it, s, "??");
-       }
-       for (i = 0; i < s->ignored.nr; i++) {
-               struct string_list_item *it;
 
-               it = &(s->ignored.items[i]);
+       for_each_string_list_item(it, &s->ignored)
                wt_shortstatus_other(it, s, "!!");
-       }
 }
 
 static void wt_porcelain_print(struct wt_status *s)
@@ -1843,31 +2002,28 @@ static void wt_porcelain_print(struct wt_status *s)
  *
  *    <upstream> ::= the upstream branch name, when set.
  *
- *       <ahead> ::= integer ahead value, when upstream set
- *                   and the commit is present (not gone).
- *
- *      <behind> ::= integer behind value, when upstream set
- *                   and commit is present.
+ *       <ahead> ::= integer ahead value or '?'.
  *
+ *      <behind> ::= integer behind value or '?'.
  *
  * The end-of-line is defined by the -z flag.
  *
  *                 <eol> ::= NUL when -z,
  *                           LF when NOT -z.
  *
+ * When an upstream is set and present, the 'branch.ab' line will
+ * be printed with the ahead/behind counts for the branch and the
+ * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
+ * are different, '?' will be substituted for the actual count.
  */
 static void wt_porcelain_v2_print_tracking(struct wt_status *s)
 {
        struct branch *branch;
        const char *base;
        const char *branch_name;
-       struct wt_status_state state;
        int ab_info, nr_ahead, nr_behind;
        char eol = s->null_termination ? '\0' : '\n';
 
-       memset(&state, 0, sizeof(state));
-       wt_status_get_state(&state, s->branch && !strcmp(s->branch, "HEAD"));
-
        fprintf(s->fp, "# branch.oid %s%c",
                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
                        eol);
@@ -1878,10 +2034,11 @@ static void wt_porcelain_v2_print_tracking(struct wt_status *s)
                if (!strcmp(s->branch, "HEAD")) {
                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
 
-                       if (state.rebase_in_progress || state.rebase_interactive_in_progress)
-                               branch_name = state.onto;
-                       else if (state.detached_from)
-                               branch_name = state.detached_from;
+                       if (s->state.rebase_in_progress ||
+                           s->state.rebase_interactive_in_progress)
+                               branch_name = s->state.onto;
+                       else if (s->state.detached_from)
+                               branch_name = s->state.detached_from;
                        else
                                branch_name = "";
                } else {
@@ -1894,20 +2051,27 @@ static void wt_porcelain_v2_print_tracking(struct wt_status *s)
                /* Lookup stats on the upstream tracking branch, if set. */
                branch = branch_get(branch_name);
                base = NULL;
-               ab_info = (stat_tracking_info(branch, &nr_ahead, &nr_behind, &base) == 0);
+               ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
+                                            &base, 0, s->ahead_behind_flags);
                if (base) {
                        base = shorten_unambiguous_ref(base, 0);
                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
                        free((char *)base);
 
-                       if (ab_info)
-                               fprintf(s->fp, "# branch.ab +%d -%d%c", nr_ahead, nr_behind, eol);
+                       if (ab_info > 0) {
+                               /* different */
+                               if (nr_ahead || nr_behind)
+                                       fprintf(s->fp, "# branch.ab +%d -%d%c",
+                                               nr_ahead, nr_behind, eol);
+                               else
+                                       fprintf(s->fp, "# branch.ab +? -?%c",
+                                               eol);
+                       } else if (!ab_info) {
+                               /* same */
+                               fprintf(s->fp, "# branch.ab +0 -0%c", eol);
+                       }
                }
        }
-
-       free(state.branch);
-       free(state.onto);
-       free(state.detached_from);
 }
 
 /*
@@ -1937,9 +2101,7 @@ static void wt_porcelain_v2_submodule_state(
 /*
  * Fix-up changed entries before we print them.
  */
-static void wt_porcelain_v2_fix_up_changed(
-       struct string_list_item *it,
-       struct wt_status *s)
+static void wt_porcelain_v2_fix_up_changed(struct string_list_item *it)
 {
        struct wt_status_change_data *d = it->util;
 
@@ -1991,15 +2153,15 @@ static void wt_porcelain_v2_print_changed_entry(
        struct wt_status *s)
 {
        struct wt_status_change_data *d = it->util;
-       struct strbuf buf_index = STRBUF_INIT;
-       struct strbuf buf_head = STRBUF_INIT;
-       const char *path_index = NULL;
-       const char *path_head = NULL;
+       struct strbuf buf = STRBUF_INIT;
+       struct strbuf buf_from = STRBUF_INIT;
+       const char *path = NULL;
+       const char *path_from = NULL;
        char key[3];
        char submodule_token[5];
        char sep_char, eol_char;
 
-       wt_porcelain_v2_fix_up_changed(it, s);
+       wt_porcelain_v2_fix_up_changed(it);
        wt_porcelain_v2_submodule_state(d, submodule_token);
 
        key[0] = d->index_status ? d->index_status : '.';
@@ -2013,8 +2175,8 @@ static void wt_porcelain_v2_print_changed_entry(
                 */
                sep_char = '\0';
                eol_char = '\0';
-               path_index = it->string;
-               path_head = d->head_path;
+               path = it->string;
+               path_from = d->rename_source;
        } else {
                /*
                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
@@ -2024,27 +2186,27 @@ static void wt_porcelain_v2_print_changed_entry(
                 */
                sep_char = '\t';
                eol_char = '\n';
-               path_index = quote_path(it->string, s->prefix, &buf_index);
-               if (d->head_path)
-                       path_head = quote_path(d->head_path, s->prefix, &buf_head);
+               path = quote_path(it->string, s->prefix, &buf);
+               if (d->rename_source)
+                       path_from = quote_path(d->rename_source, s->prefix, &buf_from);
        }
 
-       if (path_head)
+       if (path_from)
                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
                                key, submodule_token,
                                d->mode_head, d->mode_index, d->mode_worktree,
                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
-                               key[0], d->score,
-                               path_index, sep_char, path_head, eol_char);
+                               d->rename_status, d->rename_score,
+                               path, sep_char, path_from, eol_char);
        else
                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
                                key, submodule_token,
                                d->mode_head, d->mode_index, d->mode_worktree,
                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
-                               path_index, eol_char);
+                               path, eol_char);
 
-       strbuf_release(&buf_index);
-       strbuf_release(&buf_head);
+       strbuf_release(&buf);
+       strbuf_release(&buf_from);
 }
 
 /*
@@ -2055,6 +2217,7 @@ static void wt_porcelain_v2_print_unmerged_entry(
        struct wt_status *s)
 {
        struct wt_status_change_data *d = it->util;
+       struct index_state *istate = s->repo->index;
        const struct cache_entry *ce;
        struct strbuf buf_index = STRBUF_INIT;
        const char *path_index = NULL;
@@ -2079,7 +2242,7 @@ static void wt_porcelain_v2_print_unmerged_entry(
        case 6: key = "AA"; break; /* both added */
        case 7: key = "UU"; break; /* both modified */
        default:
-               die("BUG: unhandled unmerged status %x", d->stagemask);
+               BUG("unhandled unmerged status %x", d->stagemask);
        }
 
        /*
@@ -2093,11 +2256,11 @@ static void wt_porcelain_v2_print_unmerged_entry(
         */
        memset(stages, 0, sizeof(stages));
        sum = 0;
-       pos = cache_name_pos(it->string, strlen(it->string));
+       pos = index_name_pos(istate, it->string, strlen(it->string));
        assert(pos < 0);
        pos = -pos-1;
-       while (pos < active_nr) {
-               ce = active_cache[pos++];
+       while (pos < istate->cache_nr) {
+               ce = istate->cache[pos++];
                stage = ce_stage(ce);
                if (strcmp(ce->name, it->string) || !stage)
                        break;
@@ -2106,7 +2269,7 @@ static void wt_porcelain_v2_print_unmerged_entry(
                sum |= (1 << (stage - 1));
        }
        if (sum != d->stagemask)
-               die("BUG: observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
+               BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
 
        if (s->null_termination)
                path_index = it->string;
@@ -2199,6 +2362,13 @@ static void wt_porcelain_v2_print(struct wt_status *s)
 
 void wt_status_print(struct wt_status *s)
 {
+       trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
+       trace2_data_intmax("status", s->repo, "count/untracked",
+                          s->untracked.nr);
+       trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
+
+       trace2_region_enter("status", "print", s->repo);
+
        switch (s->status_format) {
        case STATUS_FORMAT_SHORT:
                wt_shortstatus_print(s);
@@ -2210,27 +2380,31 @@ void wt_status_print(struct wt_status *s)
                wt_porcelain_v2_print(s);
                break;
        case STATUS_FORMAT_UNSPECIFIED:
-               die("BUG: finalize_deferred_config() should have been called");
+               BUG("finalize_deferred_config() should have been called");
                break;
        case STATUS_FORMAT_NONE:
        case STATUS_FORMAT_LONG:
                wt_longstatus_print(s);
                break;
        }
+
+       trace2_region_leave("status", "print", s->repo);
 }
 
 /**
  * Returns 1 if there are unstaged changes, 0 otherwise.
  */
-int has_unstaged_changes(int ignore_submodules)
+int has_unstaged_changes(struct repository *r, int ignore_submodules)
 {
        struct rev_info rev_info;
        int result;
 
-       init_revisions(&rev_info, NULL);
-       if (ignore_submodules)
-               DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
-       DIFF_OPT_SET(&rev_info.diffopt, QUICK);
+       repo_init_revisions(r, &rev_info, NULL);
+       if (ignore_submodules) {
+               rev_info.diffopt.flags.ignore_submodules = 1;
+               rev_info.diffopt.flags.override_submodule_config = 1;
+       }
+       rev_info.diffopt.flags.quick = 1;
        diff_setup_done(&rev_info.diffopt);
        result = run_diff_files(&rev_info, 0);
        return diff_result_code(&rev_info.diffopt, result);
@@ -2239,19 +2413,30 @@ int has_unstaged_changes(int ignore_submodules)
 /**
  * Returns 1 if there are uncommitted changes, 0 otherwise.
  */
-int has_uncommitted_changes(int ignore_submodules)
+int has_uncommitted_changes(struct repository *r,
+                           int ignore_submodules)
 {
        struct rev_info rev_info;
        int result;
 
-       if (is_cache_unborn())
+       if (is_index_unborn(r->index))
                return 0;
 
-       init_revisions(&rev_info, NULL);
+       repo_init_revisions(r, &rev_info, NULL);
        if (ignore_submodules)
-               DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
-       DIFF_OPT_SET(&rev_info.diffopt, QUICK);
+               rev_info.diffopt.flags.ignore_submodules = 1;
+       rev_info.diffopt.flags.quick = 1;
+
        add_head_to_pending(&rev_info);
+       if (!rev_info.pending.nr) {
+               /*
+                * We have no head (or it's corrupt); use the empty tree,
+                * which will complain if the index is non-empty.
+                */
+               struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
+               add_pending_object(&rev_info, &tree->object, "");
+       }
+
        diff_setup_done(&rev_info.diffopt);
        result = run_diff_index(&rev_info, 1);
        return diff_result_code(&rev_info.diffopt, result);
@@ -2261,24 +2446,28 @@ int has_uncommitted_changes(int ignore_submodules)
  * If the work tree has unstaged or uncommitted changes, dies with the
  * appropriate message.
  */
-int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
+int require_clean_work_tree(struct repository *r,
+                           const char *action,
+                           const char *hint,
+                           int ignore_submodules,
+                           int gently)
 {
-       struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
+       struct lock_file lock_file = LOCK_INIT;
        int err = 0, fd;
 
-       fd = hold_locked_index(lock_file, 0);
-       refresh_cache(REFRESH_QUIET);
+       fd = repo_hold_locked_index(r, &lock_file, 0);
+       refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
        if (0 <= fd)
-               update_index_if_able(&the_index, lock_file);
-       rollback_lock_file(lock_file);
+               repo_update_index_if_able(r, &lock_file);
+       rollback_lock_file(&lock_file);
 
-       if (has_unstaged_changes(ignore_submodules)) {
+       if (has_unstaged_changes(r, ignore_submodules)) {
                /* TRANSLATORS: the action is e.g. "pull with rebase" */
                error(_("cannot %s: You have unstaged changes."), _(action));
                err = 1;
        }
 
-       if (has_uncommitted_changes(ignore_submodules)) {
+       if (has_uncommitted_changes(r, ignore_submodules)) {
                if (err)
                        error(_("additionally, your index contains uncommitted changes."));
                else