# README
cli Source
The cli source reads config from parsed flags via a cli.Context.
Format
We expect the use of the urfave/cli
package. Upper case flags will be lower cased. Dashes will be used as delimiters for nesting.
Example
var cliSrc source.Source
app := &cli.App{
Flags: []cli.Flag{
cli.StringFlag{
Name: "database-address",
Value: "127.0.0.1",
Usage: "the db address",
},
cli.IntFlag{
Name: "database-port",
Value: 3306,
Usage: "the db port",
},
},
Action: func(c *cli.Context) error {
cliSrc = NewSource(c)
return nil
},
}
Becomes
{
"database": {
"address": "127.0.0.1",
"port": 3306
}
}
New and Load Source
Because a cli.Context is needed to retrieve the flags and their values, it is recommended to build your source from within a cli.Action.
func main() {
// New Service
var cliSrc source.Source
// New App
app := &cli.App{
Flags: []cli.Flag{
cli.StringFlag{
Name: "database-address",
Value: "127.0.0.1",
Usage: "the db address",
},
},
Action: func(c *cli.Context) error {
cliSrc = NewSource(c)
return nil
},
}
// ... Load and use that source ...
conf := config.NewConfig()
conf.Load(clisrc)
}