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ash,hush: history builtin

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function                                             old     new   delta
show_history                                           -      39     +39
builtin_history                                        -      16     +16
historycmd                                             -      13     +13
bltins1                                              312     324     +12
builtintab                                           336     344      +8
popstring                                            134     140      +6
hush_main                                           1048    1046      -2
ash_main                                            1398    1396      -2
size_from_HISTFILESIZE                                44      40      -4
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 3/3 up/down: 94/-8)              Total: 86 bytes

Signed-off-by: Flemming Madsen <busybox@themadsens.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Flemming Madsen 2013-04-07 18:47:24 +02:00 committed by Denys Vlasenko
parent 3beab83e4f
commit d96ffda62e
4 changed files with 45 additions and 3 deletions
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3
include/libbb.h
View File

@ -1436,7 +1436,7 @@ void read_key_ungets(char *buffer, const char *str, unsigned len) FAST_FUNC;
/* It's NOT just ENABLEd or disabled. It's a number: */
# if defined CONFIG_FEATURE_EDITING_HISTORY && CONFIG_FEATURE_EDITING_HISTORY > 0
# define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
unsigned size_from_HISTFILESIZE(const char *hp);
unsigned size_from_HISTFILESIZE(const char *hp) FAST_FUNC;
# else
# define MAX_HISTORY 0
# endif
@ -1478,6 +1478,7 @@ line_input_t *new_line_input_t(int flags) FAST_FUNC;
* >0 length of input string, including terminating '\n'
*/
int read_line_input(line_input_t *st, const char *prompt, char *command, int maxsize, int timeout) FAST_FUNC;
void show_history(const line_input_t *st) FAST_FUNC;
# if ENABLE_FEATURE_EDITING_SAVE_ON_EXIT
void save_history(line_input_t *st);
# endif

16
libbb/lineedit.c
View File

@ -1254,7 +1254,7 @@ line_input_t* FAST_FUNC new_line_input_t(int flags)
#if MAX_HISTORY > 0
unsigned size_from_HISTFILESIZE(const char *hp)
unsigned FAST_FUNC size_from_HISTFILESIZE(const char *hp)
{
int size = MAX_HISTORY;
if (hp) {
@ -1309,6 +1309,17 @@ static int get_next_history(void)
return 0;
}
/* Lists command history. Used by shell 'history' builtins */
void FAST_FUNC show_history(const line_input_t *st)
{
int i;
if (!st)
return;
for (i = 0; i < st->cnt_history; i++)
printf("%4d %s\n", i, st->history[i]);
}
# if ENABLE_FEATURE_EDITING_SAVEHISTORY
/* We try to ensure that concurrent additions to the history
* do not overwrite each other.
@ -2749,8 +2760,9 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman
free(command_ps);
#endif
if (command_len > 0)
if (command_len > 0) {
remember_in_history(command);
}
if (break_out > 0) {
command[command_len++] = '\n';

15
shell/ash.c
View File

@ -9033,6 +9033,9 @@ static int getoptscmd(int, char **) FAST_FUNC;
#if !ENABLE_FEATURE_SH_EXTRA_QUIET
static int helpcmd(int, char **) FAST_FUNC;
#endif
#if MAX_HISTORY
static int historycmd(int, char **) FAST_FUNC;
#endif
#if ENABLE_SH_MATH_SUPPORT
static int letcmd(int, char **) FAST_FUNC;
#endif
@ -9106,6 +9109,9 @@ static const struct builtincmd builtintab[] = {
#if !ENABLE_FEATURE_SH_EXTRA_QUIET
{ BUILTIN_NOSPEC "help" , helpcmd },
#endif
#if MAX_HISTORY
{ BUILTIN_NOSPEC "history" , historycmd },
#endif
#if JOBS
{ BUILTIN_REGULAR "jobs" , jobscmd },
{ BUILTIN_REGULAR "kill" , killcmd },
@ -12621,6 +12627,15 @@ helpcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
}
#endif /* FEATURE_SH_EXTRA_QUIET */
#if MAX_HISTORY
static int FAST_FUNC
historycmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
show_history(line_input_state);
return EXIT_SUCCESS;
}
#endif
/*
* The export and readonly commands.
*/

14
shell/hush.c
View File

@ -850,6 +850,9 @@ static int builtin_jobs(char **argv) FAST_FUNC;
#if ENABLE_HUSH_HELP
static int builtin_help(char **argv) FAST_FUNC;
#endif
#if MAX_HISTORY
static int builtin_history(char **argv) FAST_FUNC;
#endif
#if ENABLE_HUSH_LOCAL
static int builtin_local(char **argv) FAST_FUNC;
#endif
@ -919,6 +922,9 @@ static const struct built_in_command bltins1[] = {
#if ENABLE_HUSH_HELP
BLTIN("help" , builtin_help , NULL),
#endif
#if MAX_HISTORY
BLTIN("history" , builtin_history , "Show command history"),
#endif
#if ENABLE_HUSH_JOB
BLTIN("jobs" , builtin_jobs , "List jobs"),
#endif
@ -8627,6 +8633,14 @@ static int FAST_FUNC builtin_help(char **argv UNUSED_PARAM)
}
#endif
#if MAX_HISTORY
static int FAST_FUNC builtin_history(char **argv UNUSED_PARAM)
{
show_history(G.line_input_state);
return EXIT_SUCCESS;
}
#endif
#if ENABLE_HUSH_JOB
static int FAST_FUNC builtin_jobs(char **argv UNUSED_PARAM)
{