cli: Add a command to show cmdline history
There is a function for this but it is never used. Showing the history is
a useful feature, so add a new 'history' command.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6470b13..5bc0a92 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -176,6 +176,13 @@
help
Command to read the metadata and dump it's contents
+config CMD_HISTORY
+ bool "history"
+ depends on CMDLINE_EDITING
+ help
+ Show the command-line history, i.e. a list of commands that are in
+ the history buffer.
+
config CMD_LICENSE
bool "license"
select BUILD_BIN2C
diff --git a/cmd/Makefile b/cmd/Makefile
index 9bebf32..971f78a 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -91,6 +91,7 @@
obj-$(CONFIG_CMD_FWU_METADATA) += fwu_mdata.o
obj-$(CONFIG_CMD_GETTIME) += gettime.o
obj-$(CONFIG_CMD_GPIO) += gpio.o
+obj-$(CONFIG_CMD_HISTORY) += history.o
obj-$(CONFIG_CMD_HVC) += smccc.o
obj-$(CONFIG_CMD_I2C) += i2c.o
obj-$(CONFIG_CMD_IOTRACE) += iotrace.o
diff --git a/cmd/history.c b/cmd/history.c
new file mode 100644
index 0000000..b6bf467
--- /dev/null
+++ b/cmd/history.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2023 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <cli.h>
+
+static int do_history(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ cread_print_hist_list();
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ history, CONFIG_SYS_MAXARGS, 1, do_history,
+ "print command history",
+ ""
+);