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Command line history changes, lastpatch_71 from Vladimir N. Oleynik

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This commit is contained in:
Glenn L McGrath 2002-12-09 11:10:40 +00:00
parent 6b5bd0e5ab
commit fdbbb04893
4 changed files with 77 additions and 38 deletions
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15
shell/Config.in
View File

@ -3,7 +3,7 @@
# see scripts/kbuild/config-language.txt.
#
menu "Bourne Shell"
menu "Another Bourne-like Shell"
choice
prompt "Choose your default shell"
@ -95,12 +95,6 @@ config CONFIG_ASH_OPTIMIZE_FOR_SIZE
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_COMMAND_SAVEHISTORY
bool " history saving"
default n
depends on CONFIG_ASH
help
Please submit a patch to add help text for this item.
if CONFIG_FEATURE_SH_IS_HUSH
config CONFIG_HUSH
@ -158,6 +152,13 @@ config CONFIG_FEATURE_COMMAND_EDITING
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_COMMAND_SAVEHISTORY
bool " history saving"
default n
depends on CONFIG_ASH
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_COMMAND_TAB_COMPLETION
bool "tab completion"
default n

48
shell/ash.c
View File

@ -1196,6 +1196,10 @@ static struct var vlc_all;
static struct var vlc_ctype;
#endif
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
static struct var vhistfile;
#endif
struct varinit {
struct var *var;
int flags;
@ -1241,6 +1245,10 @@ static const struct varinit varinit[] = {
change_lc_all},
{&vlc_ctype, VSTRFIXED | VTEXTFIXED | VUNSET, "LC_CTYPE=",
change_lc_ctype},
#endif
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
{&vhistfile, VSTRFIXED | VTEXTFIXED | VUNSET, "HISTFILE=",
NULL},
#endif
{NULL, 0, NULL,
NULL}
@ -7312,6 +7320,20 @@ int ash_main(int argc, char **argv)
init();
setstackmark(&smark);
procargs(argc, argv);
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
if ( iflag ) {
const char *hp = lookupvar("HISTFILE");
if(hp == NULL ) {
hp = lookupvar("HOME");
if(hp != NULL) {
char *defhp = concat_path_file(hp, ".ash_history");
setvar("HISTFILE", defhp, 0);
free(defhp);
}
}
}
#endif
if (argv[0] && argv[0][0] == '-')
isloginsh = 1;
if (isloginsh) {
@ -7357,8 +7379,12 @@ int ash_main(int argc, char **argv)
if (sflag || minusc == NULL) {
state4: /* XXX ??? - why isn't this before the "if" statement */
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
if ( iflag )
load_history ( ".ash_history" );
if ( iflag ) {
const char *hp = lookupvar("HISTFILE");
if(hp != NULL )
load_history ( hp );
}
#endif
cmdloop(1);
}
@ -7550,10 +7576,6 @@ static int exitcmd(int argc, char **argv)
{
if (stoppedjobs())
return 0;
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
if ( iflag )
save_history ( ".ash_history" );
#endif
if (argc > 1)
exitstatus = number(argv[1]);
@ -11615,12 +11637,22 @@ static void exitshell(int status)
trap[0] = NULL;
evalstring(p, 0);
}
l1:handler = &loc2; /* probably unnecessary */
l1:
handler = &loc2; /* probably unnecessary */
flushall();
#ifdef CONFIG_ASH_JOB_CONTROL
setjobctl(0);
#endif
l2:_exit(status);
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
if (iflag && rootshell) {
const char *hp = lookupvar("HISTFILE");
if(hp != NULL )
save_history ( hp );
}
#endif
l2:
_exit(status);
/* NOTREACHED */
}

46
shell/cmdedit.c
View File

@ -1131,40 +1131,44 @@ static int get_next_history(void)
}
}
extern void load_history ( char *fromfile )
{
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
extern void load_history ( const char *fromfile )
{
FILE *fp;
int hi;
// cleanup old
while ( n_history ) {
if ( history [n_history - 1] )
free ( history [n_history - 1] );
n_history--;
/* cleanup old */
for(hi = n_history; hi > 0; ) {
hi--;
free ( history [hi] );
}
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 ))
for ( hi = 0; hi < MAX_HISTORY; ) {
char * hl = get_line_from_file(fp);
int l;
if(!hl)
break;
l = xstrlen ( buffer );
if ( l && buffer [l - 1] == '\n' )
buffer [l - 1] = 0;
history [n_history++] = xstrdup ( buffer );
chomp(hl);
l = strlen(hl);
if(l >= BUFSIZ)
hl[BUFSIZ-1] = 0;
if(l == 0 || hl[0] == ' ') {
free(hl);
continue;
}
history [hi++] = hl;
}
fclose ( fp );
}
cur_history = n_history;
#endif
cur_history = n_history = hi;
}
extern void save_history ( char *tofile )
extern void save_history ( const char *tofile )
{
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
FILE *fp = fopen ( tofile, "w" );
if ( fp ) {
@ -1176,8 +1180,8 @@ extern void save_history ( char *tofile )
}
fclose ( fp );
}
#endif
}
#endif
#endif

6
shell/cmdedit.h
View File

@ -3,7 +3,9 @@
int cmdedit_read_input(char* promptStr, char* command);
void load_history ( char *fromfile );
void save_history ( char *tofile );
#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY
void load_history ( const char *fromfile );
void save_history ( const char *tofile );
#endif
#endif /* CMDEDIT_H */