updater: include build date, check against updates

build time is included in the binary, so the buildrone release date is
compared to it when deciding if something is an update or not.

.goreleaser.yml

@@ -49,7 +49,7 @@ builds:
       env:
         - CGO_ENABLED=0
       ldflags:
-        - -s -w -X main.version={{.Env.JFA_GO_VERSION}} -X main.commit={{.ShortCommit}} -X main.updater=binary -X main.cssVersion={{.Env.JFA_GO_CSS_VERSION}}
+        - -s -w -X main.version={{.Env.JFA_GO_VERSION}} -X main.commit={{.ShortCommit}} -X main.updater=binary -X main.cssVersion={{.Env.JFA_GO_CSS_VERSION}} -X main.buildTimeUnix={{.Env.JFA_GO_BUILD_TIME}}
       goos:
         - linux
         - darwin

Makefile

@@ -11,9 +11,10 @@ CSSVERSION ?= v3
 VERSION ?= $(shell git describe --exact-match HEAD 2> /dev/null || echo vgit)
 VERSION := $(shell echo $(VERSION) | sed 's/v//g')
 COMMIT ?= $(shell git rev-parse --short HEAD || echo unknown)
+BUILDTIME ?= $(shell date +%s)
 
 UPDATER ?= off
-LDFLAGS := -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.cssVersion=$(CSSVERSION)
+LDFLAGS := -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.cssVersion=$(CSSVERSION) -X main.buildTimeUnix=$(BUILDTIME)
 ifeq ($(UPDATER), on)
 	LDFLAGS := $(LDFLAGS) -X main.updater=binary
 else ifneq ($(UPDATER), off)

scripts/version.sh

@@ -2,4 +2,4 @@
 # sets version environment variable for goreleaser to use
 # scripts/version.sh goreleaser ...
 JFA_GO_VERSION=$(git describe --exact-match HEAD 2> /dev/null || echo 'vgit')
-JFA_GO_CSS_VERSION="v3" JFA_GO_NFPM_EPOCH=$(git rev-list --all --count) JFA_GO_VERSION="$(echo $JFA_GO_VERSION | sed 's/v//g')" $@
+JFA_GO_CSS_VERSION="v3" JFA_GO_NFPM_EPOCH=$(git rev-list --all --count) JFA_GO_BUILD_TIME=$(date +%s) JFA_GO_VERSION="$(echo $JFA_GO_VERSION | sed 's/v//g')" $@

updater.go

@@ -25,6 +25,12 @@ const (
 	repo      = "jfa-go"
 )
 
+var buildTimeUnix string
+var buildTime time.Time = func() time.Time {
+	i, _ := strconv.ParseInt(buildTimeUnix, 10, 64)
+	return time.Unix(i, 0)
+}()
+
 type GHRelease struct {
 	HTMLURL     string    `json:"html_url"`
 	ID          int       `json:"id"`
@@ -124,6 +130,7 @@ type Updater struct {
 }
 
 func newUpdater(buildroneURL, namespace, repo, version, commit, buildType string) *Updater {
+	// fmt.Printf(`Updater intializing with "%s", "%s", "%s", "%s", "%s", "%s"\n`, buildroneURL, namespace, repo, version, commit, buildType)
 	bType := off
 	tag := ""
 	switch buildType {
@@ -184,6 +191,7 @@ func (ud *Updater) GetTag() (Tag, int, error) {
 		return Tag{}, -1, nil
 	}
 	url := fmt.Sprintf("%s/repo/%s/%s/tag/latest/%s", ud.url, ud.namespace, ud.name, ud.tag)
+	// fmt.Printf("Pinging URL \"%s\" for updates\n", url)
 	req, _ := http.NewRequest("GET", url, nil)
 	resp, err := ud.httpClient.Do(req)
 	defer ud.timeoutHandler()
@@ -205,7 +213,8 @@ func (ud *Updater) GetTag() (Tag, int, error) {
 }
 
 func (t *Tag) IsNew() bool {
-	return t.Version[:7] != commit && t.Ready
+	// fmt.Printf("Build Time: %+v, Release Date: %+v", buildTime, t.ReleaseDate)
+	return t.Version[:7] != commit && t.Ready && t.ReleaseDate.After(buildTime)
 }
 
 func (ud *Updater) getRelease() (release GHRelease, status int, err error) {