CLI to cease dumping back to OS shel on ^C.

FossilOrigin-Name: 7b1f635268bd5b093b22f832c3ac9e5d642d1aac5ebc620619be5a24930feb83

manifest

@@ -1,5 +1,5 @@
-C Ensure\sthat\sthe\sVACUUM\scommand\sis\snot\sconfused\sby\salternative\sencodings\swhen\nit\sis\sthe\sfirst\scommand\srun\son\snew\sdatabase\sconnection.\n[forum:/forumpost/09503b4d33|Forum\spost\s09503b4d33].
-D 2023-04-18T15:21:55.208
+C CLI\sto\scease\sdumping\sback\sto\sOS\sshel\son\s^C.
+D 2023-04-18T22:28:48.172
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -632,7 +632,7 @@ F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
 F src/resolve.c 3e53e02ce87c9582bd7e7d22f13f4094a271678d9dc72820fa257a2abb5e4032
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
 F src/select.c 4054886848b2aaf3d92d28bda9fabff3b5c5c1ffe8511b0dbafcea008d58a66b
-F src/shell.c.in 2a11419d77d8e4f7b4e3aea6922a9560630889423e3728205d77b4be2511cc89
+F src/shell.c.in eb273024a60f6d9f56865eeacd83247fd20919d8248ea0127ee54d6f0d6abe91
 F src/sqlite.h.in 4fff9c6cc5d4cbba9532a668112efb6dc469c425e1a2196664d7c07d508363ef
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h da473ce2b3d0ae407a6300c4a164589b9a6bfdbec9462688a8593ff16f3bb6e4
@@ -2058,8 +2058,11 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 5acc3ef83e16a9f2803981a6e61eca62fe177cac4eed1befe2ade3a5977a1eab
-R 1c9639553f364b83ea46a14ee324415d
-U drh
-Z 1f598f7bd83b32193e1562d0ae423411
+P 8b0fe63f873661037351fc1eba6071b98b5c97a0fc8bd8a504a90d047f78bc0d
+R 734cf00e9ab5f48eb416aa4234b55f52
+T *branch * cli-no-dump
+T *sym-cli-no-dump *
+T -sym-trunk *
+U larrybr
+Z 0e6d888acccf444ddfa65e448f5f1581
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-8b0fe63f873661037351fc1eba6071b98b5c97a0fc8bd8a504a90d047f78bc0d
+7b1f635268bd5b093b22f832c3ac9e5d642d1aac5ebc620619be5a24930feb83

src/shell.c.in

@@ -627,8 +627,8 @@ static void console_prepare(void){
     conState.outCodePage = GetConsoleOutputCP();
     SetConsoleCP(CP_UTF8);
     SetConsoleOutputCP(CP_UTF8);
-    SetConsoleMode(conState.hConsoleIn,
-                   conState.consoleMode | ENABLE_LINE_INPUT);
+    consoleMode |= ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT;
+    SetConsoleMode(conState.hConsoleIn, consoleMode);
     conState.infsMode = _setmode(_fileno(stdin), _O_U16TEXT);
     console_utf8 = 1;
   }else{
@@ -992,10 +992,18 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
 #if SHELL_USE_LOCAL_GETLINE
     printf("%s", zPrompt);
     fflush(stdout);
-    zResult = local_getline(zPrior, stdin);
+    do{
+      zResult = local_getline(zPrior, stdin);
+      if( zResult==0 ) sqlite3_sleep(50);
+    }while( zResult==0 && seenInterrupt>0 );
 #else
     free(zPrior);
     zResult = shell_readline(zPrompt);
+    while( zResult==0 ){
+      sqlite3_sleep(50);
+      if( seenInterrupt==0 ) break;
+      zResult = shell_readline("");
+    }
     if( zResult && *zResult ) shell_add_history(zResult);
 #endif
   }
@@ -2102,8 +2110,7 @@ static void output_csv(ShellState *p, const char *z, int bSep){
 */
 static void interrupt_handler(int NotUsed){
   UNUSED_PARAMETER(NotUsed);
-  seenInterrupt++;
-  if( seenInterrupt>2 ) exit(1);
+  if( ++seenInterrupt>1 ) exit(1);
   if( globalDb ) sqlite3_interrupt(globalDb);
 }
 
@@ -11830,6 +11837,10 @@ static char *cmdline_option_value(int argc, char **argv, int i){
   return argv[i];
 }
 
+static void sayAbnormalExit(void){
+  if( seenInterrupt ) fprintf(stderr, "Program interrupted.\n");
+}
+
 #ifndef SQLITE_SHELL_IS_UTF8
 #  if (defined(_WIN32) || defined(WIN32)) \
    && (defined(_MSC_VER) || (defined(UNICODE) && defined(__GNUC__)))
@@ -11871,8 +11882,8 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
   char **argvToFree = 0;
   int argcToFree = 0;
 #endif
-
   setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */
+
 #ifdef SQLITE_SHELL_FIDDLE
   stdin_is_interactive = 0;
   stdout_is_console = 1;
@@ -11884,6 +11895,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
 #if SHELL_WIN_UTF8_OPT
   atexit(console_restore); /* Needs revision for CLI as library call */
 #endif
+  atexit(sayAbnormalExit);
 #ifdef SQLITE_DEBUG
   mem_main_enter = sqlite3_memory_used();
 #endif
@@ -11907,6 +11919,14 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
     }
   }
 #endif
+  /* Register a valid signal handler early, before much else is done. */
+#ifdef SIGINT
+  signal(SIGINT, interrupt_handler);
+#elif (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE)
+  if( !SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE) ){
+    fprintf(stderr, "No ^C handler.\n");
+  }
+#endif
 
 #if USE_SYSTEM_SQLITE+0!=1
   if( cli_strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){
@@ -11946,15 +11966,6 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
   assert( argc>=1 && argv && argv[0] );
   Argv0 = argv[0];
 
-  /* Make sure we have a valid signal handler early, before anything
-  ** else is done.
-  */
-#ifdef SIGINT
-  signal(SIGINT, interrupt_handler);
-#elif (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE)
-  SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE);
-#endif
-
 #ifdef SQLITE_SHELL_DBNAME_PROC
   {
     /* If the SQLITE_SHELL_DBNAME_PROC macro is defined, then it is the name