Add option to configure temperature units.

Fixes #3.

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.0.6 - 2014.12.13
+### Added
+- Add option to force Celsius/Fahrenheit using `FORECAST_UNITS`.
+
 ## 0.0.5 - 2014.11.22
 ### Changed
 - Use `forecast-config` for managing API keys.

README.md

@@ -25,6 +25,8 @@ Run `forecast-config VALUE` to set API keys and the default location:
 - `DEFAULT_LOCATION`: Ex. "Seattle, WA".
 - `DEFAULT_LAT_LONG`: Only required if `GOOGLE_API_KEY` is unavailable, since
   `DEFAULT_LOCATION` can't be geocoded. Format: `lat,long`.
+- `FORECAST_UNITS`: Defaults to `auto`, which sets the units based on the
+  location. Use `si` for Celsius and `us` for Fahrenheit.
 
 [forecast-api-key]: https://developer.forecast.io/register
 [google-api-key]: https://developers.google.com/maps/documentation/geocoding/#api_key

alfred.rb

@@ -64,6 +64,7 @@ def self.config
       @config = self.new(bundle_id)
     end
 
+    DEFAULTS = { 'FORECAST_UNITS' => 'auto' }
     WORKFLOW_DATA = '~/Library/Application Support/Alfred 2/Workflow Data/'
 
     attr_reader :path
@@ -78,7 +79,7 @@ def initialize(bundle_id)
     end
 
     def [](key)
-      config.fetch(key) { '' }
+      config.fetch(key) { DEFAULTS.fetch(key) { '' } }
     end
 
     def []=(key, value)

config-forecast.rb

@@ -3,7 +3,8 @@
 OPTIONS = %w[ FORECAST_API_KEY
               GOOGLE_API_KEY
               DEFAULT_LOCATION
-              DEFAULT_LAT_LONG ]
+              DEFAULT_LAT_LONG
+              FORECAST_UNITS ]
 
 input = ARGV.shift || ''
 

forecaster.rb

@@ -16,7 +16,8 @@ def self.forecaster
 
   def forecast(location)
     lat, long = location.lat, location.long
-    url = "https://api.forecast.io/forecast/#{api_key}/#{lat},#{long}?units=auto"
+    units = Alfred::Config['FORECAST_UNITS']
+    url = "https://api.forecast.io/forecast/#{api_key}/#{lat},#{long}?units=#{units}"
     response = JSON.load(open(url))
   end
 end