Completed buildpack metric

.gitignore

@@ -1,3 +1,4 @@
 /dist
 /cf_exporter
 *.tar.gz
+.env

collectors/applications.go

@@ -53,7 +53,7 @@ func NewApplicationsCollector(
 			Help:        "Buildpack used by an Application.",
 			ConstLabels: prometheus.Labels{"environment": environment, "deployment": deployment},
 		},
-		[]string{"application_id", "application_name", "buildpack"},
+		[]string{"application_id", "application_name", "buildpack", "detect_output", "buildpack_name", "version"},
 	)
 
 	applicationInstancesMetric := prometheus.NewGaugeVec(
@@ -266,6 +266,9 @@ func (c ApplicationsCollector) reportApp(application models.Application, objs *m
 				application.GUID,
 				application.Name,
 				bp.Name,
+				bp.DetectOutput,
+				bp.BuildpackName,
+				bp.Version,
 			).Set(float64(1))
 		}
 	}

fetcher/sessionext.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/url"
 
 	"code.cloudfoundry.org/cli/api/cloudcontroller/ccv3"
 	"github.com/bosh-prometheus/cf_exporter/models"
@@ -191,12 +192,34 @@ func (s SessionExt) ListDroplets() ([]models.Droplet, error) {
 		if data.Pagination.Next.Href == "" {
 			break
 		}
-		url = data.Pagination.Next.Href
+		nextURL, err := getNextURL(url, data.Pagination.Next.Href)
+		if err != nil {
+			return nil, err
+		}
+		url = nextURL
 	}
 
 	return droplets, nil
 }
 
+func getNextURL(currentURL, nextHref string) (string, error) {
+	parsedNext, err := url.Parse(nextHref)
+	if err != nil {
+		return "", err
+	}
+	if parsedNext.IsAbs() {
+		return parsedNext.String(), nil
+	}
+
+	parsedCurrent, err := url.Parse(currentURL)
+	if err != nil {
+		return "", err
+	}
+
+	resolved := parsedCurrent.ResolveReference(parsedNext)
+	return resolved.String(), nil
+}
+
 // Local Variables:
 // ispell-local-dictionary: "american"
 // End:

go.mod

@@ -48,6 +48,7 @@ require (
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.1 // indirect
 	github.com/imdario/mergo v0.3.15 // indirect
 	github.com/jessevdk/go-flags v1.5.0 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/lunixbochs/vtclean v1.0.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect

go.sum

@@ -125,6 +125,8 @@ github.com/imdario/mergo v0.3.15 h1:M8XP7IuFNsqUx6VPK2P9OSmsYsI/YFaGil0uD21V3dM=
 github.com/imdario/mergo v0.3.15/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
 github.com/jessevdk/go-flags v1.5.0 h1:1jKYvbxEjfUl0fmqTCOfonvskHHXMjBySTLW4y9LFvc=
 github.com/jessevdk/go-flags v1.5.0/go.mod h1:Fw0T6WPc1dYxT4mKEZRfG5kJhaTDP9pj1c2EWnYs/m4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=

vendor/modules.txt

@@ -177,6 +177,8 @@ github.com/imdario/mergo
 # github.com/jessevdk/go-flags v1.5.0
 ## explicit; go 1.15
 github.com/jessevdk/go-flags
+# github.com/joho/godotenv v1.5.1
+## explicit; go 1.12
 # github.com/json-iterator/go v1.1.12
 ## explicit; go 1.12
 github.com/json-iterator/go