emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- the number of commands in the history list is now configureable via the

Browse Source 
config system
 - added a new config option to allow persistant history lists. This is
   currently only used by ash, but the calls ({load,save}_history) could
   be added to the other shells as well.
This commit is contained in:
Robert Griebl
2002-12-03 22:45:46 +00:00
parent 3ba7ceebfc
commit 350d26bbbb
4 changed files with 69 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
shell/cmdedit.c
View File

@@ -90,7 +90,12 @@
/* Maximum length of the linked list for the command line history */
#define MAX_HISTORY 15
#ifndef CONFIG_FEATURE_COMMAND_HISTORY
#define MAX_HISTORY 15
#else
#define MAX_HISTORY CONFIG_FEATURE_COMMAND_HISTORY
#endif
#if MAX_HISTORY < 1
#warning cmdedit: You set MAX_HISTORY < 1. The history algorithm switched off.
#else
@@ -1125,6 +1130,55 @@ static int get_next_history(void)
return 0;
}
}
extern void load_history ( char *fromfile )
{
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
FILE *fp;
// cleanup old
while ( n_history ) {
if ( history [n_history - 1] )
free ( history [n_history - 1] );
n_history--;
}
if (( fp = fopen ( fromfile, "r" ))) {
char buffer [256];
int i, l;
for ( i = 0; i < MAX_HISTORY; i++ ) {
if ( !fgets ( buffer, sizeof( buffer ) - 1, fp ))
break;
l = xstrlen ( buffer );
if ( l && buffer [l - 1] == '\n' )
buffer [l - 1] = 0;
history [n_history++] = xstrdup ( buffer );
}
fclose ( fp );
}
cur_history = n_history;
#endif
}
extern void save_history ( char *tofile )
{
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
FILE *fp = fopen ( tofile, "w" );
if ( fp ) {
int i;
for ( i = 0; i < n_history; i++ ) {
fputs ( history [i], fp );
fputc ( '\n', fp );
}
fclose ( fp );
}
#endif
}
#endif
enum {