feat: go modules + backoff

.version

@@ -0,0 +1 @@
+4.1.0

cmd/semantic-release/main.go

@@ -5,9 +5,9 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"github.com/semantic-release/go-semantic-release"
-	"github.com/semantic-release/go-semantic-release/condition"
-	"github.com/semantic-release/go-semantic-release/update"
+	"github.com/6RiverSystems/go-semantic-release"
+	"github.com/6RiverSystems/go-semantic-release/condition"
+	"github.com/6RiverSystems/go-semantic-release/update"
 	"io/ioutil"
 	"log"
 	"os"
@@ -64,7 +64,7 @@ func main() {
 	}
 
 	logger.Println("getting latest release...")
-	release, err := repo.GetLatestRelease()
+	release, err := repo.GetLatestReleaseWithBackoff()
 	exitIfError(err)
 	logger.Println("found version: " + release.Version.String())
 

go.mod

@@ -0,0 +1,22 @@
+module github.com/6RiverSystems/go-semantic-release
+
+go 1.17
+
+require (
+	github.com/Ableton/go-travis v0.0.0-20160216095425-1cdf3cca2f3a
+	github.com/Masterminds/semver v1.2.2
+	github.com/cenkalti/backoff/v4 v4.1.2
+	github.com/google/go-github v3.0.1-0.20170308155316-2694dcaaa606+incompatible
+	golang.org/x/oauth2 v0.0.0-20170302202304-efb10a30610e
+)
+
+require (
+	github.com/fatih/structs v1.0.0 // indirect
+	github.com/golang/protobuf v0.0.0-20170307001533-c9c7427a2a70 // indirect
+	github.com/google/go-querystring v0.0.0-20170111101155-53e6ce116135 // indirect
+	github.com/oleiade/reflections v0.0.0-20160817071559-0e86b3c98b2f // indirect
+	github.com/stretchr/testify v1.7.0 // indirect
+	golang.org/x/net v0.0.0-20170303215036-d379faa25cbd // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	google.golang.org/appengine v1.0.1-0.20170307235554-b79c28f01977 // indirect
+)

go.sum

@@ -0,0 +1,34 @@
+github.com/Ableton/go-travis v0.0.0-20160216095425-1cdf3cca2f3a h1:TN1/XKVf4MSw7ABVKhhB2UAeqRe78kKv++D59Ua5xb8=
+github.com/Ableton/go-travis v0.0.0-20160216095425-1cdf3cca2f3a/go.mod h1:yrIiBz4eKmjoNtbDoW3V2H/mYsPhPcrifUmP/P110c8=
+github.com/Masterminds/semver v1.2.2 h1:ptelpryog9A0pR4TGFvIAvw2c8SaNrYkFtfrxhSviss=
+github.com/Masterminds/semver v1.2.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
+github.com/cenkalti/backoff/v4 v4.1.2 h1:6Yo7N8UP2K6LWZnW94DLVSSrbobcWdVzAYOisuDPIFo=
+github.com/cenkalti/backoff/v4 v4.1.2/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fatih/structs v1.0.0 h1:BrX964Rv5uQ3wwS+KRUAJCBBw5PQmgJfJ6v4yly5QwU=
+github.com/fatih/structs v1.0.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
+github.com/golang/protobuf v0.0.0-20170307001533-c9c7427a2a70 h1:WKo1/VPcI3cbJwnIHISxazgDxbw+UIrktU3zNxzcp4c=
+github.com/golang/protobuf v0.0.0-20170307001533-c9c7427a2a70/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/go-github v3.0.1-0.20170308155316-2694dcaaa606+incompatible h1:9NajpjscIdTwdj0OC8tj0aA8utuxV9Tm1HS8MpKEoCo=
+github.com/google/go-github v3.0.1-0.20170308155316-2694dcaaa606+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
+github.com/google/go-querystring v0.0.0-20170111101155-53e6ce116135 h1:zLTLjkaOFEFIOxY5BWLFLwh+cL8vOBW4XJ2aqLE/Tf0=
+github.com/google/go-querystring v0.0.0-20170111101155-53e6ce116135/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/oleiade/reflections v0.0.0-20160817071559-0e86b3c98b2f h1:I6mXuorHlvwNDFelz7a+j0HaGYSzX7+Gq60DqLVypfc=
+github.com/oleiade/reflections v0.0.0-20160817071559-0e86b3c98b2f/go.mod h1:RbATFBbKYkVdqmSFtx13Bb/tVhR0lgOBXunWTZKeL4w=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+golang.org/x/net v0.0.0-20170303215036-d379faa25cbd h1:jmQMFWtDxPuJYgzEPuUp6gA5g+tbMA/TFQ/8QwMfCiI=
+golang.org/x/net v0.0.0-20170303215036-d379faa25cbd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/oauth2 v0.0.0-20170302202304-efb10a30610e h1:B703Cy0NUPHiFSmjWtOLpigF6SzPWMFDTJRm+8dChgY=
+golang.org/x/oauth2 v0.0.0-20170302202304-efb10a30610e/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+google.golang.org/appengine v1.0.1-0.20170307235554-b79c28f01977 h1:pWBLhgzeI98ZJrXXFGbuFX4SCfn4be9ZPCH4CChIyaU=
+google.golang.org/appengine v1.0.1-0.20170307235554-b79c28f01977/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

semrel.go

@@ -4,13 +4,16 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/Masterminds/semver"
-	"github.com/google/go-github/github"
-	"golang.org/x/oauth2"
+
 	"regexp"
 	"sort"
 	"strings"
 	"time"
+
+	"github.com/Masterminds/semver"
+  "github.com/cenkalti/backoff/v4"
+	"github.com/google/go-github/github"
+	"golang.org/x/oauth2"
 )
 
 var commitPattern = regexp.MustCompile("^(\\w*)(?:\\((.*)\\))?\\: (.*)$")
@@ -114,6 +117,31 @@ func (repo *Repository) GetLatestRelease() (*Release, error) {
 	return &Release{tags[0].Commit.GetSHA(), version}, nil
 }
 
+
+func (repo *Repository) GetLatestReleaseWithBackoff() (*Release, error) {
+	opts := &github.ListOptions{PerPage: 1}
+
+  var tags []*github.RepositoryTag
+  listTags := func() (err error) {
+	  tags, _, err = repo.Client.Repositories.ListTags(repo.Ctx, repo.Owner, repo.Repo, opts)
+    return err
+  }
+
+  err := backoff.Retry(listTags, backoff.NewExponentialBackOff())
+
+	if err != nil {
+		return nil, err
+	}
+	if len(tags) == 0 {
+		return &Release{"", &semver.Version{}}, nil
+	}
+	version, verr := semver.NewVersion(tags[0].GetName())
+	if verr != nil {
+		return nil, verr
+	}
+	return &Release{tags[0].Commit.GetSHA(), version}, nil
+}
+
 func (repo *Repository) CreateRelease(commits []*Commit, latestRelease *Release, newVersion *semver.Version) error {
 	tag := fmt.Sprintf("v%s", newVersion.String())
 	changelog := GetChangelog(commits, latestRelease, newVersion)