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system/readline/readline_common.c: Don't save the command again in the

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history buffer if it's the one at the top.
This commit is contained in:
Ouss4 2020-08-22 11:57:22 +01:00 committed by David Sidrane
parent a1b8ad9190
commit aa717d59fd
1 changed files with 16 additions and 9 deletions
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7
system/readline/readline_common.c
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@ -693,6 +693,12 @@ ssize_t readline_common(FAR struct rl_common_s *vtbl, FAR char *buf,
*/ */
if (nch >= 1) if (nch >= 1)
{
/* If this command is the one at the top of the circular
* buffer, don't save it again.
*/
if (strncmp(buf, g_cmdhist.buf[g_cmdhist.head], nch) != 0)
{ {
g_cmdhist.head = (g_cmdhist.head + 1) % RL_CMDHIST_LEN; g_cmdhist.head = (g_cmdhist.head + 1) % RL_CMDHIST_LEN;
@ -709,6 +715,7 @@ ssize_t readline_common(FAR struct rl_common_s *vtbl, FAR char *buf,
g_cmdhist.len++; g_cmdhist.len++;
} }
} }
}
#endif /* CONFIG_READLINE_CMD_HISTORY */ #endif /* CONFIG_READLINE_CMD_HISTORY */
/* The newline is stored in the buffer along with the null /* The newline is stored in the buffer along with the null