handle incomplete tag lookups (PR 263161)

Author: dmgk

apis/github.go

@@ -62,7 +62,13 @@ func GithubHasTag(account, project, tag string) (bool, error) {
 
 	var ref GithubRef
 	if err := json.Unmarshal(resp, &ref); err != nil {
-		return false, fmt.Errorf("error unmarshalling: %v, resp: %v", err, string(resp))
+		switch err := err.(type) {
+		case *json.UnmarshalTypeError:
+			// type mismatch during unmarshal, tag was incomplete and the API returned an array
+			return false, nil
+		default:
+			return false, fmt.Errorf("error unmarshalling: %v, resp: %v", err, string(resp))
+		}
 	}
 
 	return true, nil

apis/github_test.go

@@ -1,3 +1,4 @@
+//go:build online
 // +build online
 
 package apis

apis/gitlab_test.go

@@ -1,3 +1,4 @@
+//go:build online
 // +build online
 
 package apis

parser/parser_e2e_test.go

@@ -1,3 +1,4 @@
+//go:build e2e
 // +build e2e
 
 package parser

parser/parser_offline_test.go

@@ -1,3 +1,4 @@
+//go:build !online && !e2e
 // +build !online,!e2e
 
 package parser

parser/parser_online_test.go

@@ -1,3 +1,4 @@
+//go:build online
 // +build online
 
 package parser

testdata/concourse_expected.txt

@@ -21,8 +21,8 @@ GH_TUPLE=	\
 		cenkalti:backoff:v2.1.1:cenkalti_backoff/vendor/github.com/cenkalti/backoff \
 		census-instrumentation:opencensus-go:v0.22.2:census_instrumentation_opencensus_go/vendor/go.opencensus.io \
 		charlievieth:fs:7dc373669fa1:charlievieth_fs/vendor/github.com/charlievieth/fs \
-		cloudfoundry-incubator:credhub-cli:e3951663d25c:cloudfoundry_incubator_credhub_cli/vendor/code.cloudfoundry.org/credhub-cli \
 		cloudfoundry:clock:02e53af36e6c:cloudfoundry_clock/vendor/code.cloudfoundry.org/clock \
+		cloudfoundry:credhub-cli:e3951663d25c:cloudfoundry_credhub_cli/vendor/code.cloudfoundry.org/credhub-cli \
 		cloudfoundry:garden:62470dc86365:cloudfoundry_garden/vendor/code.cloudfoundry.org/garden \
 		cloudfoundry:go-socks5:54f73bdb8a8e:cloudfoundry_go_socks5/vendor/github.com/cloudfoundry/go-socks5 \
 		cloudfoundry:lager:v2.0.0:cloudfoundry_lager/vendor/code.cloudfoundry.org/lager \