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In the command-line shell, on the banner, warn about the use of a

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transient in-memory database in bold red text.

FossilOrigin-Name: 0fbc0fcec1b3a67065fa0ebb49375bf675789edc
This commit is contained in:
drh
2014-02-10 19:27:05 +00:00
parent b373591c5e
commit 1247aa4e4a
3 changed files with 38 additions and 18 deletions
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39
src/shell.c
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@@ -3500,6 +3500,29 @@ static void main_init(struct callback_data *data) {
sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
}
/*
** Arrange for subsequent text console output to be RED or normal. Use
** the SetConsoleTextAttribute() function on windows. On all other
** platforms, assume VT100 escape sequences are recognized.
*/
#ifdef _WIN32
static void outputRed(void){
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_RED|FOREGROUND_INTENSITY);
}
static void outputNormal(void){
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
}
#else
static void outputRed(void){
printf("\033[1;31m");
}
static void outputNormal(void){
printf("\033[0m");
}
#endif
/*
** Get the argument to an --option. Throw an error and die if no argument
** is available.
@@ -3615,7 +3638,7 @@ int main(int argc, char **argv){
if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
data.zDbFilename = ":memory:";
warnInmemoryDb = 1;
warnInmemoryDb = argc==1;
#else
fprintf(stderr,"%s: Error: no database filename specified\n", Argv0);
return 1;
@@ -3752,16 +3775,16 @@ int main(int argc, char **argv){
int nHistory;
printf(
"SQLite version %s %.19s\n" /*extra-version-info*/
"Enter \".help\" for instructions\n"
"Enter SQL statements terminated with a \";\"\n",
"Enter \".help\" for usage hints.\n",
sqlite3_libversion(), sqlite3_sourceid()
);
if( warnInmemoryDb ){
printf(
"Warning: connected to an in-memory database. "
"Use \".open FILENAME\" to change\nto a persistent "
"on-disk database.\n"
);
printf("Connected to a ");
outputRed();
printf("transient in-memory database");
outputNormal();
printf(".\nUse \".open FILENAME\" to reopen on a "
"persistent database.\n");
}
zHome = find_home_dir();
if( zHome ){