Remove hard code for min interval in installations

cmd/lookoutd/common.go

@@ -213,6 +213,7 @@ func (c *lookoutdCommand) initProviderGithubApp(conf Config) error {
 	if conf.Providers.Github.AppID == 0 {
 		return fmt.Errorf("missing GitHub App ID in config")
 	}
+
 	installationsSyncInterval := defaultInstallationsSyncInterval
 	if conf.Providers.Github.InstallationSyncInterval != "" {
 		var err error
@@ -225,7 +226,7 @@ func (c *lookoutdCommand) initProviderGithubApp(conf Config) error {
 	cache := cache.NewValidableCache(diskcache.New("/tmp/github"))
 	insts, err := github.NewInstallations(
 		conf.Providers.Github.AppID, conf.Providers.Github.PrivateKey,
-		cache, conf.Timeout.GithubRequest)
+		cache, conf.Providers.Github.WatchMinInterval, conf.Timeout.GithubRequest)
 	if err != nil {
 		return err
 	}

config.yml.tpl

@@ -10,6 +10,7 @@ providers:
     # app_id: 1234
     # private_key: ./key.pem
     # installation_sync_interval: 1h
+    # watch_min_interval: 2s
 
 repositories:
   - url: github.com/src-d/lookout

docs/configuration.md

@@ -26,6 +26,7 @@ providers:
     # app_id: 1234
     # private_key: ./key.pem
     # installation_sync_interval: 1h
+    # watch_min_interval: 2s
 ```
 
 `comment_footer` key defines a format-string that will be used for custom messages for every message posted on GitHub; see how to [add a custom message to the posted comments](#custom-footer)
@@ -64,12 +65,14 @@ providers:
     app_id: 1234
     private_key: ./key.pem
     installation_sync_interval: 1h
+    watch_min_interval: 10s
 ```
 
 When the GitHub App authentication method is used, the repositories to analyze are retrieved automatically from the GitHub installations, so `repositories` list from `config.yml` is ignored.
 
-The update interval is defined by `installation_sync_interval`.
+The update interval to discover new installations and repositories is defined by `installation_sync_interval`.
 
+The minimum watch interval to discover new pull requests and push events is defined by `watch_min_interval`.
 
 ## Repositories
 

provider/github/installations.go

@@ -20,9 +20,10 @@ import (
 
 // Installations keeps github installations and allows to sync them
 type Installations struct {
-	appID      int
-	privateKey string
-	appClient  *github.Client
+	appID            int
+	privateKey       string
+	appClient        *github.Client
+	watchMinInterval string
 
 	cache         *cache.ValidableCache
 	clientTimeout time.Duration
@@ -37,6 +38,7 @@ type Installations struct {
 func NewInstallations(
 	appID int, privateKey string,
 	cache *cache.ValidableCache,
+	watchMinInterval string,
 	clientTimeout time.Duration,
 ) (*Installations, error) {
 	// Use App authorization to list installations
@@ -55,13 +57,14 @@ func NewInstallations(
 	log.Infof("authorized as GitHub application %q, ID %v", app.GetName(), app.GetID())
 
 	i := &Installations{
-		appID:         appID,
-		privateKey:    privateKey,
-		appClient:     appClient,
-		cache:         cache,
-		clientTimeout: clientTimeout,
-		clients:       make(map[int64]*Client),
-		Pool:          NewClientPool(),
+		appID:            appID,
+		privateKey:       privateKey,
+		appClient:        appClient,
+		watchMinInterval: watchMinInterval,
+		cache:            cache,
+		clientTimeout:    clientTimeout,
+		clients:          make(map[int64]*Client),
+		Pool:             NewClientPool(),
 	}
 
 	return i, nil
@@ -168,9 +171,7 @@ func (t *Installations) createClient(installationID int64) (*Client, error) {
 		}
 	}
 
-	// TODO (carlosms): hardcoded, take from config
-	watchMinInterval := ""
-	return NewClient(itr, t.cache, watchMinInterval, gitAuth, t.clientTimeout), nil
+	return NewClient(itr, t.cache, t.watchMinInterval, gitAuth, t.clientTimeout), nil
 }
 
 func (t *Installations) getRepos(iClient *Client) ([]*lookout.RepositoryInfo, error) {

provider/github/watcher.go

@@ -22,6 +22,7 @@ type ProviderConfig struct {
 	PrivateKey               string `yaml:"private_key"`
 	AppID                    int    `yaml:"app_id"`
 	InstallationSyncInterval string `yaml:"installation_sync_interval"`
+	WatchMinInterval         string `yaml:"watch_min_interval"`
 }
 
 // don't call github more often than