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upgraded version #4

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16 changes: 14 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,15 @@ execsql
An npm project. Node.js
Execute your *.sql files which contain multiple sql statements.

### SQL File Format

Make sure each `query` is in a single line.
```sql
SELECT * FROM table_name;
SELECT * FROM table_name;
```


## Usage

### As a CLI tool
Expand Down Expand Up @@ -55,6 +64,9 @@ Execute your *.sql files which contain multiple sql statements.
.execFile(sqlFile, function (err, results) {
if (err) throw err;
console.log(results);
})
.end();
if(err === null && results === null) {
// comepleted
console.log('Execution Completed');
}
});
```
5 changes: 4 additions & 1 deletion bin/execsql
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Expand Up @@ -44,7 +44,10 @@ if (isConfig) {
results.forEach(function (result, i) {
console.log(i + ' -- \r\n' + JSON.stringify(result));
});
execsql.end();
if(err === null && results === null) {
// comepleted
console.log('Execution Completed');
}
process.exit(0);
}
}
24 changes: 17 additions & 7 deletions index.js
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@@ -1,6 +1,7 @@
var fs = require('fs'),
_ = require('underscore'),
mysql = require('mysql'),
readLine = require('readline'),
config = {
multipleStatements: true
},
Expand All @@ -19,19 +20,28 @@ function exec(sql, callback) {
}

function execFile(filename, callback) {
fs.readFile(filename, 'utf8', function (err, data) {
if (err) throw err;
exec(data, callback);
var fileStream = fs.createReadStream(filename); // file stream to read created

const rl = readLine.createInterface({
input: fileStream,
output: process.stdout,
terminal: false
});

rl.on('line', function(line) { // reading the file line by line
var query = line.replace(/{{[ ]{0,2}([a-zA-Z0-9\.\_\-]*)[ ]{0,2}}}/g, function(str, mch){ return data[mch]});
exec(query, callback);
})
.on('close' function(line) { // triggered on the end of the file
// stop reading
conn.end();
callback(null, null);
});
return this;
}

exports.exec = exec;
exports.execFile = execFile;
exports.end = function () {
conn.end();
return this;
};
exports.config = function (options) {
_.extend(config, _.pick(options, ['host', 'port', 'user', 'password']));
conn = mysql.createConnection(config);
Expand Down