Add -e

README.md

@@ -24,7 +24,7 @@
 - [x] `||`/`&&`
 - [x] script with shebangs
 - [x] `-c` eval argument
-- [ ] `-e` exit on failure
+- [x] `-e` exit on failure
 - [x] `-h` help (open man?)
 - [x] globbing
 - [x] var interpreter

src/common.h

@@ -21,5 +21,6 @@ typedef struct {
     uint8_t flags;
     char *script_file;
     char *cmd;
+    bool exit_failure;
 } opt_t;
 #endif /* COMMON_H */

src/main.c

@@ -14,7 +14,7 @@
 #include "debug.h"
 #include "shell.h"
 
-const char OPT_FLAGS[] = "hc:";
+const char OPT_FLAGS[] = "hec:";
 
 static
 void print_usages(FILE *file, char *bin)
@@ -34,6 +34,9 @@ bool parse_args(opt_t *opt, int ac, char **av)
             case 'c':
                 opt->cmd = strdup(optarg);
                 break;
+            case 'e':
+                opt->exit_failure = true;
+                break;
             default:
                 return print_usages(stderr, av[0]), false;
         }
@@ -41,15 +44,14 @@ bool parse_args(opt_t *opt, int ac, char **av)
     if (optind < ac) {
         opt->script_file = av[optind];
         U_DEBUG("Script file [%s]\n", opt->script_file);
-    } else {
-        U_DEBUG_MSG("No script file provided.\n");
     }
     return true;
 }
 
 int main(int ac, char **av, char **env)
 {
-    opt_t opt = { 0, .script_file = nullptr, .cmd = nullptr };
+    opt_t opt = { 0, .script_file = nullptr, .cmd = nullptr,
+        .exit_failure = false };
     int result;
 
     U_DEBUG_MSG("Debug mode altivated.\n");

src/shell.c

@@ -61,7 +61,6 @@ bool change_shell_command(buff_t *buff, exec_ctx_t *exec_ctx)
     buff->sz = 0;
     if (!readline(exec_ctx, buff))
         return false;
-    U_DEBUG("BUFF SZ [%lu]\n", buff->sz);
     if (!buff->sz)
         return false;
     tmp_buff = buff->str;
@@ -93,6 +92,8 @@ int shell_loop(int is_a_tty, exec_ctx_t *exec_ctx)
         write_prompt(is_a_tty, exec_ctx);
         if (!change_shell_command(&buff, exec_ctx))
             return free(buff.str), exec_ctx->history->last_exit_code;
+        if (exec_ctx->opt->exit_failure && exec_ctx->history->last_exit_code)
+            return free(buff.str), exec_ctx->history->last_exit_code;
     }
     return free(buff.str), exec_ctx->history->last_exit_code;
 }