electronics/bs_explorer
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bs: persist REPL command history across sessions

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Load and save readline history in $HOME/.bs_explorer_history (capped at
1000 entries), so up-arrow recalls commands from previous sessions.
Saved on exit/quit, EOF and Ctrl-C.
This commit is contained in:
Foué
2026-05-24 00:55:13 +02:00
parent e987afc624
commit 65ebe6b00c
1 changed files with 26 additions and 0 deletions
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26
bs/main.c
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@@ -16,10 +16,34 @@
static jtag_core *jc = NULL; static jtag_core *jc = NULL;
static script_ctx *sctx = NULL; static script_ctx *sctx = NULL;
#define HISTORY_MAX_ENTRIES 1000
static char history_file[1024] = "";
/* Persist the REPL command history across sessions in
* $HOME/.bs_explorer_history (skipped if HOME is unset). */
static void init_history(void)
{
const char *home = getenv("HOME");
if (home && *home) {
snprintf(history_file, sizeof(history_file), "%s/.bs_explorer_history", home);
using_history();
read_history(history_file);
}
}
static void save_history(void)
{
if (history_file[0]) {
write_history(history_file);
history_truncate_file(history_file, HISTORY_MAX_ENTRIES);
}
}
static void handle_sigint(int sig) static void handle_sigint(int sig)
{ {
(void)sig; (void)sig;
fputs("\n", stdout); fputs("\n", stdout);
save_history();
bsexp_deinit(jc, sctx); bsexp_deinit(jc, sctx);
exit(0); exit(0);
} }
@@ -91,6 +115,7 @@ int main(void)
signal(SIGINT, handle_sigint); signal(SIGINT, handle_sigint);
rl_attempted_completion_function = bs_completion; rl_attempted_completion_function = bs_completion;
rl_readline_name = "bs_explorer"; rl_readline_name = "bs_explorer";
init_history();
print_banner(); print_banner();
@@ -116,6 +141,7 @@ int main(void)
fputs("\n", stdout); fputs("\n", stdout);
} }
save_history();
bsexp_deinit(jc, sctx); bsexp_deinit(jc, sctx);
return 0; return 0;
} }