sequencer: refactor check_todo_list() to work on a todo_list
[gitweb.git] / wt-status.c
index 50815e5faffba0e9df861dbc4881e9fbffd7a941..0fe3bcd4cd057b72a61cfc6d46e892ac890f0634 100644 (file)
@@ -119,9 +119,10 @@ 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)
 {
        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;
@@ -138,6 +139,9 @@ void wt_status_prepare(struct wt_status *s)
        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)
@@ -264,7 +268,7 @@ 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);
        }
 }
 
@@ -377,7 +381,7 @@ 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);
        }
 
@@ -395,7 +399,7 @@ static void wt_longstatus_print_change_data(struct wt_status *s,
        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 (one_name != two_name)
@@ -450,8 +454,8 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                        d->worktree_status = p->status;
                if (S_ISGITLINK(p->two->mode)) {
                        d->dirty_submodule = p->two->dirty_submodule;
-                       d->new_submodule_commits = !!oidcmp(&p->one->oid,
-                                                           &p->two->oid);
+                       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);
                }
@@ -470,7 +474,7 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                case DIFF_STATUS_COPIED:
                case DIFF_STATUS_RENAMED:
                        if (d->rename_status)
-                               die("BUG: multiple renames on the same target? how?");
+                               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;
@@ -484,26 +488,26 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
                        break;
 
                default:
-                       die("BUG: unhandled diff-files status '%c'", p->status);
+                       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));
@@ -537,17 +541,19 @@ 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:
                        if (d->rename_status)
-                               die("BUG: multiple renames on the same target? how?");
+                               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;
@@ -558,9 +564,11 @@ 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
@@ -569,7 +577,7 @@ static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
                        break;
 
                default:
-                       die("BUG: unhandled diff-index status '%c'", p->status);
+                       BUG("unhandled diff-index status '%c'", p->status);
                        break;
                }
        }
@@ -579,7 +587,7 @@ 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;
        rev.diffopt.flags.dirty_submodules = 1;
@@ -592,6 +600,9 @@ static void wt_status_collect_changes_worktree(struct wt_status *s)
        }
        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);
 }
@@ -601,9 +612,9 @@ 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);
 
        rev.diffopt.flags.override_submodule_config = 1;
@@ -625,23 +636,24 @@ 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 = DIFF_DETECT_RENAME;
-       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;
@@ -659,11 +671,13 @@ 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;
                }
        }
 }
@@ -673,6 +687,7 @@ 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;
@@ -687,25 +702,25 @@ static void wt_status_collect_untracked(struct wt_status *s)
                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
        } else {
-               dir.untracked = the_index.untracked;
+               dir.untracked = istate->untracked;
        }
 
        setup_standard_excludes(&dir);
 
-       fill_directory(&dir, &the_index, &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);
        }
@@ -718,15 +733,38 @@ 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)
 {
        wt_status_collect_changes_worktree(s);
-
        if (s->is_initial)
                wt_status_collect_changes_initial(s);
        else
                wt_status_collect_changes_index(s);
        wt_status_collect_untracked(s);
+
+       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)
@@ -767,7 +805,6 @@ 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);
@@ -976,16 +1013,18 @@ 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);
+       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 = DIFF_DETECT_RENAME;
+       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;
        /*
@@ -1000,7 +1039,7 @@ 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);
@@ -1055,22 +1094,8 @@ static void wt_longstatus_print_tracking(struct wt_status *s)
        strbuf_release(&sb);
 }
 
-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;
-}
-
 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."));
@@ -1081,7 +1106,6 @@ 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)
@@ -1092,16 +1116,15 @@ 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,
@@ -1225,10 +1248,9 @@ static int read_rebase_todolist(const char *fname, struct string_list *lines)
 }
 
 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;
 
@@ -1279,28 +1301,26 @@ 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\")"));
@@ -1309,17 +1329,18 @@ 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."));
@@ -1327,11 +1348,11 @@ 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."));
@@ -1346,11 +1367,10 @@ 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_oid, DEFAULT_ABBREV));
+                       find_unique_abbrev(&s->state.cherry_pick_head_oid, DEFAULT_ABBREV));
        if (s->hints) {
                if (has_unmerged(s))
                        status_printf_ln(s, color,
@@ -1365,11 +1385,10 @@ 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_oid, DEFAULT_ABBREV));
+                        find_unique_abbrev(&s->state.revert_head_oid, DEFAULT_ABBREV));
        if (s->hints) {
                if (has_unmerged(s))
                        status_printf_ln(s, color,
@@ -1384,13 +1403,12 @@ 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."));
@@ -1464,7 +1482,8 @@ static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
        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;
@@ -1479,10 +1498,10 @@ static void wt_status_get_detached_from(struct wt_status_state *state)
 
        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
            /* sha1 is a commit? match without further lookup */
-           (!oidcmp(&cb.noid, &oid) ||
+           (oideq(&cb.noid, &oid) ||
             /* perhaps sha1 is a tag, try to dereference to a commit */
-            ((commit = lookup_commit_reference_gently(&oid, 1)) != NULL &&
-             !oidcmp(&cb.noid, &commit->object.oid)))) {
+            ((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);
@@ -1492,7 +1511,7 @@ static void wt_status_get_detached_from(struct wt_status_state *state)
                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
        oidcpy(&state->detached_oid, &cb.noid);
        state->detached_at = !get_oid("HEAD", &oid) &&
-                            !oidcmp(&oid, &state->detached_oid);
+                            oideq(&oid, &state->detached_oid);
 
        free(ref);
        strbuf_release(&cb.buf);
@@ -1538,74 +1557,77 @@ 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;
        struct object_id oid;
 
-       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) &&
+       } else if (!stat(git_path_cherry_pick_head(r), &st) &&
                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
                state->cherry_pick_in_progress = 1;
                oidcpy(&state->cherry_pick_head_oid, &oid);
        }
        wt_status_check_bisect(NULL, state);
-       if (!stat(git_path_revert_head(), &st) &&
+       if (!stat(git_path_revert_head(r), &st) &&
            !get_oid("REVERT_HEAD", &oid)) {
                state->revert_in_progress = 1;
                oidcpy(&state->revert_head_oid, &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)
+                               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 ");
@@ -1622,10 +1644,7 @@ 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", "");
@@ -1657,14 +1676,14 @@ 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)
@@ -1929,13 +1948,9 @@ 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);
@@ -1946,10 +1961,11 @@ 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 {
@@ -1983,10 +1999,6 @@ static void wt_porcelain_v2_print_tracking(struct wt_status *s)
                        }
                }
        }
-
-       free(state.branch);
-       free(state.onto);
-       free(state.detached_from);
 }
 
 /*
@@ -2134,6 +2146,7 @@ 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;
@@ -2158,7 +2171,7 @@ 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);
        }
 
        /*
@@ -2172,11 +2185,11 @@ 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;
@@ -2185,7 +2198,7 @@ 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;
@@ -2289,7 +2302,7 @@ 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:
@@ -2301,12 +2314,12 @@ void wt_status_print(struct wt_status *s)
 /**
  * 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);
+       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;
@@ -2320,19 +2333,30 @@ 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)
                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);
@@ -2342,24 +2366,28 @@ 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 = LOCK_INIT;
        int err = 0, fd;
 
        fd = hold_locked_index(&lock_file, 0);
-       refresh_cache(REFRESH_QUIET);
+       refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
        if (0 <= fd)
-               update_index_if_able(&the_index, &lock_file);
+               update_index_if_able(r->index, &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