[U-Boot] [PATCH] common: Fix autocompletion with CONFIG_CMDLINE_PS_SUPPORT

[Marek Vasut]

The autocompletion did not work if CONFIG_CMDLINE_PS_SUPPORT was enabled
because U-Boot was comparing the prompt string with CONFIG_SYS_PROMPT .
While this works if CONFIG_CMDLINE_PS_SUPPORT is disabled, this no longer
works if it's enabled because user can override the PS1 . Fix this by
checking prompt string against the current PS1 value.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Tom Rini <trini at konsulko.com>
---
 common/command.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/common/command.c b/common/command.c
index e192bb2a61..db25bf54e0 100644
--- a/common/command.c
+++ b/common/command.c
@@ -356,8 +356,13 @@ int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
 	int i, j, k, len, seplen, argc;
 	int cnt;
 	char last_char;
+#ifdef CONFIG_CMDLINE_PS_SUPPORT
+	const char *ps_prompt = env_get("PS1");
+#else
+	const char *ps_prompt = CONFIG_SYS_PROMPT;
+#endif
 
-	if (strcmp(prompt, CONFIG_SYS_PROMPT) != 0)
+	if (strcmp(prompt, ps_prompt) != 0)
 		return 0;	/* not in normal console */
 
 	cnt = strlen(buf);
-- 
2.20.1