Atma-io-middleware-condcomments NPM

Conditional comments file middleware for Atma.IO and Atma.Toolkit. Supports JavaScript and HTML comments.

The Plugin provides a custom middleware to exclude/include conditional comments:

How to use

Extend files

There are 2 strategies: to comment and to uncomment. You should use to comment strategy for default block, so that a file is valid even without a condcomment middleware.

Uncomment on TRUE expressions
```
/*#if (EXPRESSION)
    content body
*/
```

Comment on FALSE expressions

//#if (EXPRESSION)
content body
//#endif

Expressions

Expressions are usual javascript expressions. The values for variables are taken from a) ENV and b) process argv c) middleware settings.

Embed into the project

Atma Toolkit

$ atma plugin install atma-io-middleware-condcomments --save-dev

	This adds `atma-io-middleware-condcomments` npm dependency and the `package.json` would look like:

    {
        "devDependencies": {
            "atma-io-middleware-condcomments"
        },
        "atma": {
            "plugins": [
                "atma-io-middleware-condcomments"
            ],
            "settings": {
						"atma-io-middleware-condcomments": {
                    "defines": {
                        "DEBUG": true
                    }
                },
                "io": {
                    "extensions": {
                        "ts": [
                            "atma-io-middleware-condcomments:read",
                            "atma-loader-ts:read"
                        ]
                    }
                }

            }
        }
    }

App Bundler

$ npm i atma-io-middleware-condcomments --save-dev

Extend AppBundler config with IO settings, for example in package.json for typescript extensions.

{
    /* ... any package json settings */
    "app-bundler": {
        /* ... any app-bundler settings */
        "middlewares": {                
            "ts": [
                "atma-io-middleware-condcomments:read",
                "atma-loader-ts:read"
            ]
        }
    },
}