[njs] Shell: added options for custom exit failure code.

[Dmitry Volyntsev]

details:   https://hg.nginx.org/njs/rev/328bb7c20642
branches:  
changeset: 1819:328bb7c20642
user:      Dmitry Volyntsev <xei...@nginx.com>
date:      Wed Jan 26 17:24:57 2022 +0000
description:
Shell: added options for custom exit failure code.

diffstat:

 src/njs_shell.c |  19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)

diffs (59 lines):

diff -r d5d9605a6c55 -r 328bb7c20642 src/njs_shell.c
--- a/src/njs_shell.c   Tue Jan 25 19:06:58 2022 +0000
+++ b/src/njs_shell.c   Wed Jan 26 17:24:57 2022 +0000
@@ -36,6 +36,7 @@ typedef struct {
     uint8_t                 version;
     uint8_t                 ast;
     uint8_t                 unhandled_rejection;
+    int                     exit_code;
 
     char                    *file;
     char                    *command;
@@ -319,7 +320,7 @@ done:
 
     njs_options_free(&opts);
 
-    return (ret == NJS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
+    return (ret == NJS_OK) ? EXIT_SUCCESS : opts.exit_code;
 }
 
 
@@ -344,6 +345,7 @@ njs_options_parse(njs_opts_t *opts, int 
         "  -a                print AST.\n"
         "  -c                specify the command to execute.\n"
         "  -d                print disassembled code.\n"
+        "  -e                set failure exit code.\n"
         "  -f                disabled denormals mode.\n"
         "  -p                set path prefix for modules.\n"
         "  -q                disable interactive introduction prompt.\n"
@@ -357,8 +359,14 @@ njs_options_parse(njs_opts_t *opts, int 
     ret = NJS_DONE;
 
     opts->denormals = 1;
+    opts->exit_code = EXIT_FAILURE;
     opts->unhandled_rejection = NJS_VM_OPT_UNHANDLED_REJECTION_THROW;
 
+    p = getenv("NJS_EXIT_CODE");
+    if (p != NULL) {
+        opts->exit_code = atoi(p);
+    }
+
     for (i = 1; i < argc; i++) {
 
         p = argv[i];
@@ -396,6 +404,15 @@ njs_options_parse(njs_opts_t *opts, int 
             opts->disassemble = 1;
             break;
 
+        case 'e':
+            if (++i < argc) {
+                opts->exit_code = atoi(argv[i]);
+                break;
+            }
+
+            njs_stderror("option \"-e\" requires argument\n");
+            return NJS_ERROR;
+
         case 'f':
 
 #if !(NJS_HAVE_DENORMALS_CONTROL)
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