File size: 1,756 Bytes
1e92f2d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 |
/**
* Credit: Modified from `winston-namespace` by @SetaSouto:
* https://github.com/SetaSouto/winston-namespace
*/
module.exports = {
/**
* Boolean indicating if the object is populated with the environment data.
*/
populated: false,
/**
* Populates the private data 'namespaces' as an array with the different namespaces from the DEBUG
* environment variable. It splits the data with ',' as separator.
*/
populate: function () {
const envString = process.env.DEBUG;
this.namespaces = envString ? envString.split( ',' ) : [];
this.populated = true;
},
/**
* Checks if the namespace is available to debug. The namespace could be contained in wildcards.
* Ex: 'server:api:controller' would pass the check (return true) if the 'server:api:controller' is in the
* environment variable or if 'server:api:*' or 'server:*' is in the environment variable.
* @param namespace {String} - Namespace to check.
* @returns {boolean} Whether or not the namespace is available.
*/
check: function ( namespace ) {
if ( ! this.populated ) {
this.populate();
}
if ( this.namespaces.indexOf( '*' ) !== -1 ) {
return true;
}
if ( this.namespaces.indexOf( namespace ) !== -1 ) {
return true;
}
/* If it is as 'server:api:controller', it could have a wildcard as 'server:*' */
if ( namespace.indexOf( ':' ) !== -1 ) {
/* Different levels of the namespace. Using the example of above: 'server' is level 0, 'api' is level 1 and
* 'controller' is level 2. */
const levels = namespace.split( ':' );
for ( let i = 1; i < levels.length; i++ ) {
const level = levels.slice( 0, i ).join( ':' ) + ':*';
if ( this.namespaces.includes( level ) ) {
return true;
}
}
}
return false;
},
};
|