Code

get_author_initials: various fixes
[tig.git] / tig.c
diff --git a/tig.c b/tig.c
index 8b46fa7f79629ed6bde86251f838530c05dcc071..b0032ea67a9fd869b658fa3e984c38007a6250d6 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -61,38 +61,21 @@ struct menu_item {
 
 static bool prompt_menu(const char *prompt, const struct menu_item *items, int *selected);
 
-enum graphic {
-       GRAPHIC_ASCII = 0,
-       GRAPHIC_DEFAULT,
-       GRAPHIC_UTF8
-};
+#define GRAPHIC_ENUM(_) \
+       _(GRAPHIC, ASCII), \
+       _(GRAPHIC, DEFAULT), \
+       _(GRAPHIC, UTF_8)
 
-static const struct enum_map graphic_map[] = {
-#define GRAPHIC_(name) ENUM_MAP(#name, GRAPHIC_##name)
-       GRAPHIC_(ASCII),
-       GRAPHIC_(DEFAULT),
-       GRAPHIC_(UTF8)
-#undef GRAPHIC_
-};
+DEFINE_ENUM(graphic, GRAPHIC_ENUM);
 
-#define DATE_INFO \
-       DATE_(NO), \
-       DATE_(DEFAULT), \
-       DATE_(LOCAL), \
-       DATE_(RELATIVE), \
-       DATE_(SHORT)
-
-enum date {
-#define DATE_(name) DATE_##name
-       DATE_INFO
-#undef DATE_
-};
+#define DATE_ENUM(_) \
+       _(DATE, NO), \
+       _(DATE, DEFAULT), \
+       _(DATE, LOCAL), \
+       _(DATE, RELATIVE), \
+       _(DATE, SHORT)
 
-static const struct enum_map date_map[] = {
-#define DATE_(name) ENUM_MAP(#name, DATE_##name)
-       DATE_INFO
-#undef DATE_
-};
+DEFINE_ENUM(date, DATE_ENUM);
 
 struct time {
        time_t sec;
@@ -154,23 +137,12 @@ mkdate(const struct time *time, enum date date)
 }
 
 
-#define AUTHOR_VALUES \
-       AUTHOR_(NO), \
-       AUTHOR_(FULL), \
-       AUTHOR_(ABBREVIATED)
-
-enum author {
-#define AUTHOR_(name) AUTHOR_##name
-       AUTHOR_VALUES,
-#undef AUTHOR_
-       AUTHOR_DEFAULT = AUTHOR_FULL
-};
+#define AUTHOR_ENUM(_) \
+       _(AUTHOR, NO), \
+       _(AUTHOR, FULL), \
+       _(AUTHOR, ABBREVIATED)
 
-static const struct enum_map author_map[] = {
-#define AUTHOR_(name) ENUM_MAP(#name, AUTHOR_##name)
-       AUTHOR_VALUES
-#undef AUTHOR_
-};
+DEFINE_ENUM(author, AUTHOR_ENUM);
 
 static const char *
 get_author_initials(const char *author)
@@ -186,19 +158,27 @@ get_author_initials(const char *author)
                unsigned char bytes;
                size_t i;
 
-               while (is_initial_sep(*author))
+               while (author < end && is_initial_sep(*author))
                        author++;
 
                bytes = utf8_char_length(author, end);
-               if (bytes < sizeof(initials) - 1 - pos) {
-                       while (bytes--) {
-                               initials[pos++] = *author++;
-                       }
+               if (bytes >= sizeof(initials) - 1 - pos)
+                       break;
+               while (bytes--) {
+                       initials[pos++] = *author++;
                }
 
-               for (i = pos; author < end && !is_initial_sep(*author); author++) {
-                       if (i < sizeof(initials) - 1)
-                               initials[i++] = *author;
+               i = pos;
+               while (author < end && !is_initial_sep(*author)) {
+                       bytes = utf8_char_length(author, end);
+                       if (bytes >= sizeof(initials) - 1 - i) {
+                               while (author < end && !is_initial_sep(*author))
+                                       author++;
+                               break;
+                       }
+                       while (bytes--) {
+                               initials[i++] = *author++;
+                       }
                }
 
                initials[i++] = 0;
@@ -207,6 +187,38 @@ get_author_initials(const char *author)
        return initials;
 }
 
+#define author_trim(cols) (cols == 0 || cols > 5)
+
+static const char *
+mkauthor(const char *text, int cols, enum author author)
+{
+       bool trim = author_trim(cols);
+       bool abbreviate = author == AUTHOR_ABBREVIATED || !trim;
+
+       if (author == AUTHOR_NO)
+               return "";
+       if (abbreviate && text)
+               return get_author_initials(text);
+       return text;
+}
+
+static const char *
+mkmode(mode_t mode)
+{
+       if (S_ISDIR(mode))
+               return "drwxr-xr-x";
+       else if (S_ISLNK(mode))
+               return "lrwxrwxrwx";
+       else if (S_ISGITLINK(mode))
+               return "m---------";
+       else if (S_ISREG(mode) && mode & S_IXUSR)
+               return "-rwxr-xr-x";
+       else if (S_ISREG(mode))
+               return "-rw-r--r--";
+       else
+               return "----------";
+}
+
 
 /*
  * User requests
@@ -337,7 +349,7 @@ get_request(const char *name)
 /* Option and state variables. */
 static enum graphic opt_line_graphics  = GRAPHIC_DEFAULT;
 static enum date opt_date              = DATE_DEFAULT;
-static enum author opt_author          = AUTHOR_DEFAULT;
+static enum author opt_author          = AUTHOR_FULL;
 static bool opt_rev_graph              = TRUE;
 static bool opt_line_number            = FALSE;
 static bool opt_show_refs              = TRUE;
@@ -627,40 +639,30 @@ static struct keybinding default_keybindings[] = {
        { 'e',          REQ_EDIT },
 };
 
-#define KEYMAP_INFO \
-       KEYMAP_(GENERIC), \
-       KEYMAP_(MAIN), \
-       KEYMAP_(DIFF), \
-       KEYMAP_(LOG), \
-       KEYMAP_(TREE), \
-       KEYMAP_(BLOB), \
-       KEYMAP_(BLAME), \
-       KEYMAP_(BRANCH), \
-       KEYMAP_(PAGER), \
-       KEYMAP_(HELP), \
-       KEYMAP_(STATUS), \
-       KEYMAP_(STAGE)
-
-enum keymap {
-#define KEYMAP_(name) KEYMAP_##name
-       KEYMAP_INFO
-#undef KEYMAP_
-};
+#define KEYMAP_ENUM(_) \
+       _(KEYMAP, GENERIC), \
+       _(KEYMAP, MAIN), \
+       _(KEYMAP, DIFF), \
+       _(KEYMAP, LOG), \
+       _(KEYMAP, TREE), \
+       _(KEYMAP, BLOB), \
+       _(KEYMAP, BLAME), \
+       _(KEYMAP, BRANCH), \
+       _(KEYMAP, PAGER), \
+       _(KEYMAP, HELP), \
+       _(KEYMAP, STATUS), \
+       _(KEYMAP, STAGE)
 
-static const struct enum_map keymap_table[] = {
-#define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
-       KEYMAP_INFO
-#undef KEYMAP_
-};
+DEFINE_ENUM(keymap, KEYMAP_ENUM);
 
-#define set_keymap(map, name) map_enum(map, keymap_table, name)
+#define set_keymap(map, name) map_enum(map, keymap_map, name)
 
 struct keybinding_table {
        struct keybinding *data;
        size_t size;
 };
 
-static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
+static struct keybinding_table keybindings[ARRAY_SIZE(keymap_map)];
 
 static void
 add_keybinding(enum keymap keymap, enum request request, int key)
@@ -1435,6 +1437,7 @@ enum open_flags {
        OPEN_RELOAD = 4,        /* Reload view even if it is the current. */
        OPEN_REFRESH = 16,      /* Refresh view using previous command. */
        OPEN_PREPARED = 32,     /* Open already prepared command. */
+       OPEN_EXTRA = 64,        /* Open extra data from command. */
 };
 
 struct view_ops {
@@ -1482,7 +1485,7 @@ static struct view views[] = {
        VIEW_(BRANCH, "branch", &branch_ops, TRUE,  ref_head),
        VIEW_(HELP,   "help",   &help_ops,   FALSE, ""),
        VIEW_(PAGER,  "pager",  &pager_ops,  FALSE, ""),
-       VIEW_(STATUS, "status", &status_ops, TRUE,  ""),
+       VIEW_(STATUS, "status", &status_ops, TRUE,  "status"),
        VIEW_(STAGE,  "stage",  &stage_ops,  TRUE,  ""),
 };
 
@@ -1653,35 +1656,19 @@ draw_date(struct view *view, struct time *time)
 static bool
 draw_author(struct view *view, const char *author)
 {
-       bool trim = opt_author_cols == 0 || opt_author_cols > 5;
-       bool abbreviate = opt_author == AUTHOR_ABBREVIATED || !trim;
+       bool trim = author_trim(opt_author_cols);
+       const char *text = mkauthor(author, opt_author_cols, opt_author);
 
        if (opt_author == AUTHOR_NO)
                return FALSE;
 
-       if (abbreviate && author)
-               author = get_author_initials(author);
-
-       return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
+       return draw_field(view, LINE_AUTHOR, text, opt_author_cols, trim);
 }
 
 static bool
 draw_mode(struct view *view, mode_t mode)
 {
-       const char *str;
-
-       if (S_ISDIR(mode))
-               str = "drwxr-xr-x";
-       else if (S_ISLNK(mode))
-               str = "lrwxrwxrwx";
-       else if (S_ISGITLINK(mode))
-               str = "m---------";
-       else if (S_ISREG(mode) && mode & S_IXUSR)
-               str = "-rwxr-xr-x";
-       else if (S_ISREG(mode))
-               str = "-rw-r--r--";
-       else
-               str = "----------";
+       const char *str = mkmode(mode);
 
        return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
 }
@@ -1710,6 +1697,43 @@ draw_lineno(struct view *view, unsigned int lineno)
        return draw_graphic(view, LINE_DEFAULT, &separator, 1, TRUE);
 }
 
+static bool
+draw_refs(struct view *view, struct ref_list *refs)
+{
+       size_t i;
+
+       if (!opt_show_refs || !refs)
+               return FALSE;
+
+       for (i = 0; i < refs->size; i++) {
+               struct ref *ref = refs->refs[i];
+               enum line_type type;
+
+               if (ref->head)
+                       type = LINE_MAIN_HEAD;
+               else if (ref->ltag)
+                       type = LINE_MAIN_LOCAL_TAG;
+               else if (ref->tag)
+                       type = LINE_MAIN_TAG;
+               else if (ref->tracked)
+                       type = LINE_MAIN_TRACKED;
+               else if (ref->remote)
+                       type = LINE_MAIN_REMOTE;
+               else
+                       type = LINE_MAIN_REF;
+
+               if (draw_text(view, type, "[") ||
+                   draw_text(view, type, ref->name) ||
+                   draw_text(view, type, "]"))
+                       return TRUE;
+
+               if (draw_text(view, LINE_DEFAULT, " "))
+                       return TRUE;
+       }
+
+       return FALSE;
+}
+
 static bool
 draw_view_line(struct view *view, unsigned int lineno)
 {
@@ -1977,14 +2001,16 @@ toggle_option(enum request request)
 }
 
 static void
-maximize_view(struct view *view)
+maximize_view(struct view *view, bool redraw)
 {
        memset(display, 0, sizeof(display));
        current_view = 0;
        display[current_view] = view;
        resize_display();
-       redraw_display(FALSE);
-       report("");
+       if (redraw) {
+               redraw_display(FALSE);
+               report("");
+       }
 }
 
 
@@ -2388,7 +2414,7 @@ format_arg(const char *name)
 }
 
 static bool
-format_argv(const char ***dst_argv, const char *src_argv[], bool replace, bool first)
+format_argv(const char ***dst_argv, const char *src_argv[], bool first)
 {
        char buf[SIZEOF_STR];
        int argc;
@@ -2426,7 +2452,7 @@ format_argv(const char ***dst_argv, const char *src_argv[], bool replace, bool f
                        int len = next - arg;
                        const char *value;
 
-                       if (!next || !replace) {
+                       if (!next) {
                                len = strlen(arg);
                                value = "";
 
@@ -2441,7 +2467,7 @@ format_argv(const char ***dst_argv, const char *src_argv[], bool replace, bool f
                        if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
                                return FALSE;
 
-                       arg = next && replace ? strchr(next, ')') + 1 : NULL;
+                       arg = next ? strchr(next, ')') + 1 : NULL;
                }
 
                if (!argv_append(dst_argv, buf))
@@ -2497,54 +2523,26 @@ setup_update(struct view *view, const char *vid)
        view->start_time = time(NULL);
 }
 
-static bool
-prepare_io(struct view *view, const char *dir, const char *argv[], bool replace)
-{
-       view->dir = dir;
-       return format_argv(&view->argv, argv, replace, !view->prev);
-}
-
-static bool
-prepare_update(struct view *view, const char *argv[], const char *dir)
-{
-       if (view->pipe)
-               end_update(view, TRUE);
-       return prepare_io(view, dir, argv, FALSE);
-}
-
-static bool
-start_update(struct view *view, const char **argv, const char *dir)
-{
-       if (view->pipe)
-               io_done(view->pipe);
-       return prepare_io(view, dir, argv, FALSE) &&
-              io_run(&view->io, IO_RD, dir, view->argv);
-}
-
-static bool
-prepare_update_file(struct view *view, const char *name)
-{
-       const char *file_argv[] = { opt_cdup, name , NULL };
-
-       if (view->pipe)
-               end_update(view, TRUE);
-       return argv_copy(&view->argv, file_argv);
-}
-
 static bool
 begin_update(struct view *view, const char *dir, const char **argv, enum open_flags flags)
 {
-       bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
+       bool extra = !!(flags & (OPEN_EXTRA));
+       bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED | OPEN_EXTRA));
        bool refresh = flags & (OPEN_REFRESH | OPEN_PREPARED);
 
        if (!reload && !strcmp(view->vid, view->id))
                return TRUE;
 
-       if (view->pipe)
-               end_update(view, TRUE);
+       if (view->pipe) {
+               if (extra)
+                       io_done(view->pipe);
+               else
+                       end_update(view, TRUE);
+       }
 
        if (!refresh) {
-               if (!prepare_io(view, dir, argv, TRUE))
+               view->dir = dir;
+               if (!format_argv(&view->argv, argv, !view->prev))
                        return FALSE;
 
                /* Put the current ref_* value to the view title ref
@@ -2557,11 +2555,9 @@ begin_update(struct view *view, const char *dir, const char **argv, enum open_fl
        if (view->argv && view->argv[0] &&
            !io_run(&view->io, IO_RD, view->dir, view->argv))
                return FALSE;
-       else if (view->argv && !strcmp(view->argv[0], opt_cdup) &&
-                !io_open(&view->io, "%s%s", opt_cdup, view->argv[1]))
-               return FALSE;
 
-       setup_update(view, view->id);
+       if (!extra)
+               setup_update(view, view->id);
 
        return TRUE;
 }
@@ -2708,15 +2704,64 @@ add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
  * View opening
  */
 
+static void
+load_view(struct view *view, enum open_flags flags)
+{
+       if (view->pipe)
+               end_update(view, TRUE);
+       if (!view->ops->open(view, flags)) {
+               report("Failed to load %s view", view->name);
+               return;
+       }
+       restore_view_position(view);
+
+       if (view->pipe && view->lines == 0) {
+               /* Clear the old view and let the incremental updating refill
+                * the screen. */
+               werase(view->win);
+               view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
+               report("");
+       } else if (view_is_displayed(view)) {
+               redraw_view(view);
+               report("");
+       }
+}
+
+#define refresh_view(view) load_view(view, OPEN_REFRESH)
+#define reload_view(view) load_view(view, OPEN_RELOAD)
+
+static void
+split_view(struct view *prev, struct view *view)
+{
+       display[1] = view;
+       current_view = 1;
+       view->parent = prev;
+       resize_display();
+
+       if (prev->lineno - prev->offset >= prev->height) {
+               /* Take the title line into account. */
+               int lines = prev->lineno - prev->offset - prev->height + 1;
+
+               /* Scroll the view that was split if the current line is
+                * outside the new limited view. */
+               do_scroll_view(prev, lines);
+       }
+
+       if (view != prev && view_is_displayed(prev)) {
+               /* "Blur" the previous view. */
+               update_view_title(prev);
+       }
+}
+
 static void
 open_view(struct view *prev, enum request request, enum open_flags flags)
 {
        bool split = !!(flags & OPEN_SPLIT);
-       bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
-       bool nomaximize = !!(flags & OPEN_REFRESH);
+       bool reload = !!(flags & (OPEN_RELOAD | OPEN_PREPARED));
        struct view *view = VIEW(request);
        int nviews = displayed_views();
-       struct view *base_view = display[0];
+
+       assert(flags ^ OPEN_REFRESH);
 
        if (view == prev && nviews == 1 && !reload) {
                report("Already in %s view", view->name);
@@ -2729,14 +2774,9 @@ open_view(struct view *prev, enum request request, enum open_flags flags)
        }
 
        if (split) {
-               display[1] = view;
-               current_view = 1;
-               view->parent = prev;
-       } else if (!nomaximize) {
-               /* Maximize the current view. */
-               memset(display, 0, sizeof(display));
-               current_view = 0;
-               display[current_view] = view;
+               split_view(prev, view);
+       } else {
+               maximize_view(view, FALSE);
        }
 
        /* No prev signals that this is the first loaded view. */
@@ -2744,46 +2784,31 @@ open_view(struct view *prev, enum request request, enum open_flags flags)
                view->prev = prev;
        }
 
-       /* Resize the view when switching between split- and full-screen,
-        * or when switching between two different full-screen views. */
-       if (nviews != displayed_views() ||
-           (nviews == 1 && base_view != display[0]))
-               resize_display();
-
-       if (view->ops->open) {
-               if (view->pipe)
-                       end_update(view, TRUE);
-               if (!view->ops->open(view, flags)) {
-                       report("Failed to load %s view", view->name);
-                       return;
-               }
-               restore_view_position(view);
-       }
+       load_view(view, flags);
+}
 
-       if (split && prev->lineno - prev->offset >= prev->height) {
-               /* Take the title line into account. */
-               int lines = prev->lineno - prev->offset - prev->height + 1;
+static void
+open_argv(struct view *prev, struct view *view, const char *argv[], const char *dir, enum open_flags flags)
+{
+       enum request request = view - views + REQ_OFFSET + 1;
 
-               /* Scroll the view that was split if the current line is
-                * outside the new limited view. */
-               do_scroll_view(prev, lines);
+       if (view->pipe)
+               end_update(view, TRUE);
+       view->dir = dir;
+       
+       if (!argv_copy(&view->argv, argv)) {
+               report("Failed to open %s view: %s", view->name, io_strerror(&view->io));
+       } else {
+               open_view(prev, request, flags | OPEN_PREPARED);
        }
+}
 
-       if (prev && view != prev && split && view_is_displayed(prev)) {
-               /* "Blur" the previous view. */
-               update_view_title(prev);
-       }
+static void
+open_file(struct view *prev, struct view *view, const char *file, enum open_flags flags)
+{
+       const char *file_argv[] = { opt_cdup, file , NULL };
 
-       if (view->pipe && view->lines == 0) {
-               /* Clear the old view and let the incremental updating refill
-                * the screen. */
-               werase(view->win);
-               view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
-               report("");
-       } else if (view_is_displayed(view)) {
-               redraw_view(view);
-               report("");
-       }
+       open_argv(prev, view, file_argv, opt_cdup, flags); 
 }
 
 static void
@@ -2837,7 +2862,7 @@ open_run_request(enum request request)
                return;
        }
 
-       if (format_argv(&argv, req->argv, TRUE, FALSE))
+       if (format_argv(&argv, req->argv, FALSE))
                open_external_viewer(argv, NULL);
        if (argv)
                argv_free(argv);
@@ -2987,7 +3012,7 @@ view_driver(struct view *view, enum request request)
 
        case REQ_MAXIMIZE:
                if (displayed_views() == 2)
-                       maximize_view(view);
+                       maximize_view(view, TRUE);
                break;
 
        case REQ_OPTIONS:
@@ -3044,7 +3069,7 @@ view_driver(struct view *view, enum request request)
                 * view itself. Parents to closed view should never be
                 * followed. */
                if (view->prev && view->prev != view) {
-                       maximize_view(view->prev);
+                       maximize_view(view->prev, TRUE);
                        view->prev = view;
                        break;
                }
@@ -3365,7 +3390,7 @@ log_request(struct view *view, enum request request, struct line *line)
        switch (request) {
        case REQ_REFRESH:
                load_refs();
-               open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
+               refresh_view(view);
                return REQ_NONE;
        default:
                return pager_request(view, request, line);
@@ -3435,7 +3460,7 @@ static struct view_ops diff_ops = {
  * Help backend
  */
 
-static bool help_keymap_hidden[ARRAY_SIZE(keymap_table)];
+static bool help_keymap_hidden[ARRAY_SIZE(keymap_map)];
 
 static bool
 help_open_keymap_title(struct view *view, enum keymap keymap)
@@ -3444,7 +3469,7 @@ help_open_keymap_title(struct view *view, enum keymap keymap)
 
        line = add_line_format(view, LINE_HELP_KEYMAP, "[%c] %s bindings",
                               help_keymap_hidden[keymap] ? '+' : '-',
-                              enum_name(keymap_table[keymap]));
+                              enum_name(keymap_map[keymap]));
        if (line)
                line->other = keymap;
 
@@ -3527,7 +3552,7 @@ help_open(struct view *view, enum open_flags flags)
        add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
        add_line_text(view, "", LINE_DEFAULT);
 
-       for (keymap = 0; keymap < ARRAY_SIZE(keymap_table); keymap++)
+       for (keymap = 0; keymap < ARRAY_SIZE(keymap_map); keymap++)
                help_open_keymap(view, keymap);
 
        return TRUE;
@@ -3541,8 +3566,7 @@ help_request(struct view *view, enum request request, struct line *line)
                if (line->type == LINE_HELP_KEYMAP) {
                        help_keymap_hidden[line->other] =
                                !help_keymap_hidden[line->other];
-                       view->p_restore = TRUE;
-                       open_view(view, REQ_VIEW_HELP, OPEN_REFRESH);
+                       refresh_view(view);
                }
 
                return REQ_NONE;
@@ -3710,11 +3734,10 @@ tree_read_date(struct view *view, char *text, bool *read_date)
                return TRUE;
 
        } else if (!text) {
-               char *path = *opt_path ? opt_path : ".";
                /* Find next entry to process */
                const char *log_file[] = {
                        "git", "log", "--no-color", "--pretty=raw",
-                               "--cc", "--raw", view->id, "--", path, NULL
+                               "--cc", "--raw", view->id, "--", "%(directory)", NULL
                };
 
                if (!view->lines) {
@@ -3723,7 +3746,7 @@ tree_read_date(struct view *view, char *text, bool *read_date)
                        return TRUE;
                }
 
-               if (!start_update(view, log_file, opt_cdup)) {
+               if (!begin_update(view, opt_cdup, log_file, OPEN_EXTRA)) {
                        report("Failed to load tree data");
                        return TRUE;
                }
@@ -3964,7 +3987,7 @@ tree_grep(struct view *view, struct line *line)
        struct tree_entry *entry = line->data;
        const char *text[] = {
                entry->name,
-               opt_author ? entry->author : "",
+               mkauthor(entry->author, opt_author_cols, opt_author),
                mkdate(&entry->time, opt_date),
                NULL
        };
@@ -4098,6 +4121,7 @@ struct blame {
 static bool
 blame_open(struct view *view, enum open_flags flags)
 {
+       const char *file_argv[] = { opt_cdup, opt_file , NULL };
        char path[SIZEOF_STR];
        size_t i;
 
@@ -4107,13 +4131,12 @@ blame_open(struct view *view, enum open_flags flags)
                        return FALSE;
        }
 
-       if (*opt_ref || !io_open(&view->io, "%s%s", opt_cdup, opt_file)) {
+       if (*opt_ref || !begin_update(view, opt_cdup, file_argv, flags)) {
                const char *blame_cat_file_argv[] = {
-                       "git", "cat-file", "blob", path, NULL
+                       "git", "cat-file", "blob", "%(ref):%(file)", NULL
                };
 
-               if (!string_format(path, "%s:%s", opt_ref, opt_file) ||
-                   !start_update(view, blame_cat_file_argv, opt_cdup))
+               if (!begin_update(view, opt_cdup, blame_cat_file_argv, flags))
                        return FALSE;
        }
 
@@ -4135,7 +4158,7 @@ blame_open(struct view *view, enum open_flags flags)
                        free(blame->commit);
        }
 
-       setup_update(view, opt_file);
+       string_format(view->vid, "%s", opt_file);
        string_format(view->ref, "%s ...", opt_file);
 
        return TRUE;
@@ -4229,7 +4252,7 @@ blame_read_file(struct view *view, const char *line, bool *read_file)
                if (view->lines == 0 && !view->prev)
                        die("No blame exist for %s", view->vid);
 
-               if (view->lines == 0 || !start_update(view, blame_argv, opt_cdup)) {
+               if (view->lines == 0 || !begin_update(view, opt_cdup, blame_argv, OPEN_EXTRA)) {
                        report("Failed to load blame data");
                        return TRUE;
                }
@@ -4412,7 +4435,7 @@ blame_request(struct view *view, enum request request, struct line *line)
                        string_copy(opt_file, blame->commit->filename);
                        if (blame->lineno)
                                view->lineno = blame->lineno;
-                       open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
+                       reload_view(view);
                }
                break;
 
@@ -4425,7 +4448,7 @@ blame_request(struct view *view, enum request request, struct line *line)
                        string_copy_rev(opt_ref, blame->commit->parent_id);
                        string_copy(opt_file, blame->commit->parent_filename);
                        setup_blame_parent_line(view, blame);
-                       open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
+                       reload_view(view);
                }
                break;
 
@@ -4451,14 +4474,10 @@ blame_request(struct view *view, enum request request, struct line *line)
                                diff_index_argv[7] = "/dev/null";
                        }
 
-                       if (!prepare_update(diff, diff_index_argv, NULL)) {
-                               report("Failed to allocate diff command");
-                               break;
-                       }
-                       flags |= OPEN_PREPARED;
+                       open_argv(view, diff, diff_index_argv, NULL, flags);
+               } else {
+                       open_view(view, REQ_VIEW_DIFF, flags);
                }
-
-               open_view(view, REQ_VIEW_DIFF, flags);
                if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
                        string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
                break;
@@ -4572,7 +4591,7 @@ branch_request(struct view *view, enum request request, struct line *line)
        switch (request) {
        case REQ_REFRESH:
                load_refs();
-               open_view(view, REQ_VIEW_BRANCH, OPEN_REFRESH);
+               refresh_view(view);
                return REQ_NONE;
 
        case REQ_TOGGLE_SORT_FIELD:
@@ -4590,10 +4609,7 @@ branch_request(struct view *view, enum request request, struct line *line)
                };
                struct view *main_view = VIEW(REQ_VIEW_MAIN);
 
-               if (!prepare_update(main_view, all_branches_argv, NULL))
-                       report("Failed to load view of all branches");
-               else
-                       open_view(view, REQ_VIEW_MAIN, OPEN_PREPARED | OPEN_SPLIT);
+               open_argv(view, main_view, all_branches_argv, NULL, OPEN_SPLIT);
                return REQ_NONE;
        }
        default:
@@ -4667,12 +4683,11 @@ branch_open(struct view *view, enum open_flags flags)
                        "--simplify-by-decoration", "--all", NULL
        };
 
-       if (!start_update(view, branch_log, NULL)) {
+       if (!begin_update(view, NULL, branch_log, flags)) {
                report("Failed to load branch data");
                return TRUE;
        }
 
-       setup_update(view, view->id);
        branch_open_visitor(view, &branch_all);
        foreach_ref(branch_open_visitor, view);
        view->p_restore = TRUE;
@@ -4686,7 +4701,7 @@ branch_grep(struct view *view, struct line *line)
        struct branch *branch = line->data;
        const char *text[] = {
                branch->ref->name,
-               branch->author,
+               mkauthor(branch->author, opt_author_cols, opt_author),
                NULL
        };
 
@@ -5038,15 +5053,6 @@ status_draw(struct view *view, struct line *line, unsigned int lineno)
        return TRUE;
 }
 
-static enum request
-status_load_error(struct view *view, struct view *stage, const char *path)
-{
-       if (displayed_views() == 2 || display[current_view] != view)
-               maximize_view(view);
-       report("Failed to load '%s': %s", path, io_strerror(&stage->io));
-       return REQ_NONE;
-}
-
 static enum request
 status_enter(struct view *view, struct line *line)
 {
@@ -5056,7 +5062,7 @@ status_enter(struct view *view, struct line *line)
         * path, so leave it empty. */
        const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
        const char *info;
-       enum open_flags split;
+       enum open_flags flags = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
        struct view *stage = VIEW(REQ_VIEW_STAGE);
 
        if (line->type == LINE_STAT_NONE ||
@@ -5073,8 +5079,7 @@ status_enter(struct view *view, struct line *line)
                                        "--", "/dev/null", newpath, NULL
                        };
 
-                       if (!prepare_update(stage, no_head_diff_argv, opt_cdup))
-                               return status_load_error(view, stage, newpath);
+                       open_argv(view, stage, no_head_diff_argv, opt_cdup, flags); 
                } else {
                        const char *index_show_argv[] = {
                                "git", "diff-index", "--root", "--patch-with-stat",
@@ -5082,8 +5087,7 @@ status_enter(struct view *view, struct line *line)
                                        oldpath, newpath, NULL
                        };
 
-                       if (!prepare_update(stage, index_show_argv, opt_cdup))
-                               return status_load_error(view, stage, newpath);
+                       open_argv(view, stage, index_show_argv, opt_cdup, flags);
                }
 
                if (status)
@@ -5099,8 +5103,7 @@ status_enter(struct view *view, struct line *line)
                                "-C", "-M", "--", oldpath, newpath, NULL
                };
 
-               if (!prepare_update(stage, files_show_argv, opt_cdup))
-                       return status_load_error(view, stage, newpath);
+               open_argv(view, stage, files_show_argv, opt_cdup, flags);
                if (status)
                        info = "Unstaged changes to %s";
                else
@@ -5118,8 +5121,7 @@ status_enter(struct view *view, struct line *line)
                        return REQ_NONE;
                }
 
-               if (!prepare_update_file(stage, newpath))
-                       return status_load_error(view, stage, newpath);
+               open_file(view, stage, newpath, flags);
                info = "Untracked file %s";
                break;
 
@@ -5130,8 +5132,6 @@ status_enter(struct view *view, struct line *line)
                die("line type %d not handled in switch", line->type);
        }
 
-       split = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
-       open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
        if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
                if (status) {
                        stage_status = *status;
@@ -5401,7 +5401,7 @@ status_request(struct view *view, enum request request, struct line *line)
                return request;
        }
 
-       open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
+       refresh_view(view);
 
        return REQ_NONE;
 }
@@ -5681,8 +5681,7 @@ stage_request(struct view *view, enum request request, struct line *line)
                return request;
        }
 
-       VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
-       open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
+       refresh_view(view->parent);
 
        /* Check whether the staged entry still exists, and close the
         * stage view if it doesn't. */
@@ -5691,7 +5690,7 @@ stage_request(struct view *view, enum request request, struct line *line)
                return REQ_VIEW_CLOSE;
        }
 
-       open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
+       refresh_view(view);
 
        return REQ_NONE;
 }
@@ -5818,35 +5817,8 @@ main_draw(struct view *view, struct line *line, unsigned int lineno)
        if (opt_rev_graph && draw_graph(view, &commit->graph))
                return TRUE;
 
-       if (opt_show_refs && commit->refs) {
-               size_t i;
-
-               for (i = 0; i < commit->refs->size; i++) {
-                       struct ref *ref = commit->refs->refs[i];
-                       enum line_type type;
-
-                       if (ref->head)
-                               type = LINE_MAIN_HEAD;
-                       else if (ref->ltag)
-                               type = LINE_MAIN_LOCAL_TAG;
-                       else if (ref->tag)
-                               type = LINE_MAIN_TAG;
-                       else if (ref->tracked)
-                               type = LINE_MAIN_TRACKED;
-                       else if (ref->remote)
-                               type = LINE_MAIN_REMOTE;
-                       else
-                               type = LINE_MAIN_REF;
-
-                       if (draw_text(view, type, "[") ||
-                           draw_text(view, type, ref->name) ||
-                           draw_text(view, type, "]"))
-                               return TRUE;
-
-                       if (draw_text(view, LINE_DEFAULT, " "))
-                               return TRUE;
-               }
-       }
+       if (draw_refs(view, commit->refs))
+               return TRUE;
 
        draw_text(view, LINE_DEFAULT, commit->title);
        return TRUE;
@@ -5946,12 +5918,12 @@ main_request(struct view *view, enum request request, struct line *line)
        switch (request) {
        case REQ_ENTER:
                if (view_is_displayed(view) && display[0] != view)
-                       maximize_view(view);
+                       maximize_view(view, TRUE);
                open_view(view, REQ_VIEW_DIFF, flags);
                break;
        case REQ_REFRESH:
                load_refs();
-               open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
+               refresh_view(view);
                break;
        default:
                return request;
@@ -5983,7 +5955,7 @@ main_grep(struct view *view, struct line *line)
        struct commit *commit = line->data;
        const char *text[] = {
                commit->title,
-               opt_author ? commit->author : "",
+               mkauthor(commit->author, opt_author_cols, opt_author),
                mkdate(&commit->time, opt_date),
                NULL
        };
@@ -6961,10 +6933,8 @@ main(int argc, const char *argv[])
 
                                if (!argv_from_string(argv, &argc, cmd)) {
                                        report("Too many arguments");
-                               } else if (!prepare_update(next, argv, NULL)) {
-                                       report("Failed to format command");
                                } else {
-                                       open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
+                                       open_argv(view, next, argv, NULL, OPEN_DEFAULT);
                                }
                        }