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util/Database: MySQL connection parameters may all come from my.cnf

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It doesn't make sense to override database, hostname or username parameters
coming from ~/.my.cnf with arbitrary own defaults.  Instead allow
libmysqlclient to use the builtin default parameter mechanism.

See <https://dev.mysql.com/doc/refman/5.1/en/option-files.html> for what a
~/.my.cnf may look like; example:

[client]
user=hsc
password=secret42
database=fail_demo

Change-Id: I90aadc04375c624d5e906557c8bd4049e5caa17c
This commit is contained in:
Horst Schirmeier
2013-03-23 17:57:57 +01:00
parent 77532fe523
commit 14b7d4e6f4
1 changed files with 7 additions and 7 deletions
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14
src/core/util/Database.cc
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@ -17,7 +17,7 @@ Database::Database(const std::string &username, const std::string &host, const s
log << "cannot connect to MySQL server: " << mysql_error(handle) << std::endl;
exit(-1);
}
log << "opened MYSQL connection to " << username << "@" << host << "/" << database << std::endl;
log << "opened MYSQL connection" << std::endl;
}
MYSQL_RES* Database::query(char const *query, bool get_result)
@ -109,11 +109,11 @@ void Database::cmdline_setup() {
CommandLine &cmd = CommandLine::Inst();
DATABASE = cmd.addOption("d", "database", Arg::Required,
"-d/--database\t MYSQL Database (default: fail_demo)");
"-d/--database\t MYSQL Database (default: taken from ~/.my.cnf)");
HOSTNAME = cmd.addOption("H", "hostname", Arg::Required,
"-h/--hostname\t MYSQL Hostname (default: localhost)");
"-h/--hostname\t MYSQL Hostname (default: taken from ~/.my.cnf)");
USERNAME = cmd.addOption("u", "username", Arg::Required,
"-u/--username\t MYSQL Username (default: fail)");
"-u/--username\t MYSQL Username (default: taken from ~/.my.cnf, or your current user)");
}
Database * Database::cmdline_connect() {
@ -124,17 +124,17 @@ Database * Database::cmdline_connect() {
if (cmd[USERNAME].count() > 0)
username = std::string(cmd[USERNAME].first()->arg);
else
username = "fail";
username = "";
if (cmd[HOSTNAME].count() > 0)
hostname = std::string(cmd[HOSTNAME].first()->arg);
else
hostname = "localhost";
hostname = "";
if (cmd[DATABASE].count() > 0)
database = std::string(cmd[DATABASE].first()->arg);
else
database = "fail_demo";
database = "";
return new Database(username, hostname, database);
}