[feat] toggle dotfiles with . key (#17)

config.def.h

@@ -90,6 +90,7 @@ static Key nkeys[] = {
 	{ {.ch = 'c'},                 rname,        {0}             },
 	{ {.key = TB_KEY_SPACE},       switch_pane,  {0}             },
 	{ {.ch = '\\'},                bkmrk,        {.v = root}     },
+	{ {.ch = '.'},                 toggle_df,    {0}             },
 };
 
 /* visual keys */
@@ -114,6 +115,9 @@ static const size_t vkeyslen = LEN(vkeys);
 static const mode_t ndir_perm = S_IRWXU;
 static const mode_t nf_perm   = S_IRUSR | S_IWUSR;
 
+/* dotfiles */
+static int show_dotfiles = 1;
+
 /* statusbar */
 static const char dtfmt[] = "%F %R"; /* date time format */
 

sfm.c

@@ -151,6 +151,7 @@ static int addwatch(Pane *);
 static int read_events(void);
 static void rmwatch(Pane *);
 static void fsev_shdn(void);
+static void toggle_df(const Arg *arg);
 static void start_filter(const Arg *arg);
 static void start_vmode(const Arg *arg);
 static void exit_vmode(const Arg *arg);
@@ -1156,6 +1157,23 @@ fsev_shdn(void)
 #endif
 }
 
+static void
+toggle_df(const Arg *arg)
+{
+	show_dotfiles = !show_dotfiles;
+	if (cpane == &pane_l) {
+		if (listdir(&pane_r) < 0)
+			print_error(strerror(errno));
+		if (listdir(&pane_l) < 0)
+			print_error(strerror(errno));
+	} else if (cpane == &pane_r) {
+		if (listdir(&pane_l) < 0)
+			print_error(strerror(errno));
+		if (listdir(&pane_r) < 0)
+			print_error(strerror(errno));
+	}
+}
+
 static void
 start_filter(const Arg *arg)
 {
@@ -1567,9 +1585,15 @@ set_direntr(Pane *pane, struct dirent *entry, DIR *dir, char *filter)
 	pane->direntr =
 		erealloc(pane->direntr, (10 + pane->dirc) * sizeof(Entry));
 	while ((entry = readdir(dir)) != 0) {
-		if ((strncmp(entry->d_name, ".", 2) == 0 ||
-			    strncmp(entry->d_name, "..", 3) == 0))
-			continue;
+		if (show_dotfiles == 1) {
+			if (entry->d_name[0] == '.' &&
+				(entry->d_name[1] == '\0' || entry->d_name[1] == '.'))
+				continue;
+		} else {
+			if (entry->d_name[0] == '.')
+				continue;
+
+		}
 
 		if (filter == NULL) {
 			ADD_ENTRY