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https://github.com/MedzikUser/go-github-selfupdate.git
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automatically detect version prefix (and omit it)
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parent
f0345e54e2
commit
49bc104362
2 changed files with 23 additions and 17 deletions
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@ -8,18 +8,20 @@ import (
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"golang.org/x/oauth2"
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"net/http"
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"os"
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"regexp"
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"strings"
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)
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var reVersion = regexp.MustCompile(`\d+\.\d+\.\d+`)
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// ReleaseDetector is responsible for detecting the latest release using GitHub Releases API.
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type ReleaseDetector struct {
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verPrefix string
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api *github.Client
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apiCtx context.Context
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}
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// NewDetector crates a new detector instance. It initializes GitHub API client.
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func NewDetector(versionPrefix string) *ReleaseDetector {
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func NewDetector() *ReleaseDetector {
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token := os.Getenv("GITHUB_TOKEN")
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ctx := context.Background()
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@ -30,7 +32,7 @@ func NewDetector(versionPrefix string) *ReleaseDetector {
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}
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client := github.NewClient(auth)
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return &ReleaseDetector{versionPrefix, client, ctx}
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return &ReleaseDetector{client, ctx}
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}
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// DetectLatest tries to get the latest version of the repository on GitHub. 'slug' means 'owner/name' formatted string.
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@ -43,13 +45,12 @@ func (d *ReleaseDetector) DetectLatest(slug string) (ver semver.Version, found b
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rel, res, err := d.api.Repositories.GetLatestRelease(d.apiCtx, repo[0], repo[1])
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if err != nil {
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log.Println("API returned an error response:", err)
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if res.StatusCode == 404 {
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// 404 means repository not found or release not found. It's not an error here.
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found = false
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err = nil
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log.Println("API returned 404. Repository or release not found")
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} else {
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log.Println("API returned an error:", err)
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}
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return
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}
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@ -57,7 +58,12 @@ func (d *ReleaseDetector) DetectLatest(slug string) (ver semver.Version, found b
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tag := rel.GetTagName()
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log.Println("Successfully fetched the latest release. tag:", tag, ", name:", rel.GetName(), ", URL:", rel.GetURL())
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ver, err = semver.Make(strings.TrimPrefix(tag, d.verPrefix))
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// Strip version prefix
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if indices := reVersion.FindStringIndex(tag); indices != nil && indices[0] > 0 {
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tag = tag[indices[0]:]
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}
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ver, err = semver.Make(tag)
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if err == nil {
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found = true
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}
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@ -65,7 +71,7 @@ func (d *ReleaseDetector) DetectLatest(slug string) (ver semver.Version, found b
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return
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}
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// DetectLatest detects the latest release of the slug (owner/repo). verPrefix is a prefix of version in tag name (i.e. 'v' for 'v1.2.3').
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func DetectLatest(slug, verPrefix string) (semver.Version, bool, error) {
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return NewDetector(verPrefix).DetectLatest(slug)
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// DetectLatest detects the latest release of the slug (owner/repo).
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func DetectLatest(slug string) (semver.Version, bool, error) {
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return NewDetector().DetectLatest(slug)
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}
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@ -11,11 +11,11 @@ func TestGitHubTokenEnv(t *testing.T) {
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if token == "" {
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t.Skip("because $GITHUB_TOKEN is not set")
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}
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_ = NewDetector("")
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_ = NewDetector()
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}
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func TestDetectRelease(t *testing.T) {
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v, ok, err := DetectLatest("rhysd/github-clone-all", "v")
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func TestDetectReleaseWithVersionPrefix(t *testing.T) {
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v, ok, err := DetectLatest("rhysd/github-clone-all")
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if err != nil {
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t.Fatal("Fetch failed:", err)
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}
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@ -28,7 +28,7 @@ func TestDetectRelease(t *testing.T) {
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}
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func TestInvalidSlug(t *testing.T) {
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d := NewDetector("v")
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d := NewDetector()
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for _, slug := range []string{
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"foo",
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@ -45,7 +45,7 @@ func TestInvalidSlug(t *testing.T) {
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}
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func TestNonExistingRepo(t *testing.T) {
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d := NewDetector("")
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d := NewDetector()
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v, ok, err := d.DetectLatest("rhysd/non-existing-repo")
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if err != nil {
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t.Fatal("Non-existing repo should not cause an error:", v)
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@ -56,7 +56,7 @@ func TestNonExistingRepo(t *testing.T) {
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}
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func TestNoReleaseFound(t *testing.T) {
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d := NewDetector("")
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d := NewDetector()
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_, ok, err := d.DetectLatest("rhysd/misc")
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if err != nil {
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t.Fatal("Repo having no release should not cause an error:", err)
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