Move version definition into command package, include build timestamp, add /api/info endpoint

Makefile

@@ -1,5 +1,6 @@
 TARGETS = darwin/amd64 darwin/386 linux/amd64 linux/386 windows/amd64 windows/386
 GIT_COMMIT = $(shell git rev-parse HEAD)
+BUILD_TIME = $(shell date -u +"%Y-%m-%dT%H:%M:%SZ" | tr -d '\n')
 DOCKER_RELEASE_TAG = "sosedoff/pgweb:$(shell git describe --abbrev=0 --tags | sed 's/v//')"
 BINDATA_IGNORE = $(shell git ls-files -io --exclude-standard $< | sed 's/^/-ignore=/;s/[.]/[.]/g')
 
@@ -41,7 +42,7 @@ build: assets
 release: assets
 	gox \
 		-osarch="$(TARGETS)" \
-		-ldflags "-X main.GitCommit $(GIT_COMMIT)" \
+		-ldflags "-X github.com/sosedoff/pgweb/pkg/command.GitCommit $(GIT_COMMIT) -X github.com/sosedoff/pgweb/pkg/command.BuildTime $(BUILD_TIME)" \
 		-output="./bin/pgweb_{{.OS}}_{{.Arch}}"
 
 bootstrap:

main.go

@@ -14,11 +14,6 @@ import (
 	"github.com/sosedoff/pgweb/pkg/util"
 )
 
-const VERSION = "0.5.2"
-
-// The git commit that was compiled. This will be filled in by the compiler.
-var GitCommit string
-
 var options command.Options
 
 func exitWithMessage(message string) {
@@ -72,9 +67,9 @@ func initOptions() {
 }
 
 func printVersion() {
-	str := fmt.Sprintf("Pgweb v%s", VERSION)
-	if GitCommit != "" {
-		str += fmt.Sprintf(" (git: %s)", GitCommit)
+	str := fmt.Sprintf("Pgweb v%s", command.VERSION)
+	if command.GitCommit != "" {
+		str += fmt.Sprintf(" (git: %s)", command.GitCommit)
 	}
 
 	fmt.Println(str)

pkg/api/api.go

@@ -197,3 +197,13 @@ func GetBookmarks(c *gin.Context) {
 	bookmarks, err := bookmarks.ReadAll(bookmarks.Path())
 	serveResult(bookmarks, err, c)
 }
+
+func GetInfo(c *gin.Context) {
+	info := map[string]string{
+		"version":    command.VERSION,
+		"git_sha":    command.GitCommit,
+		"build_time": command.BuildTime,
+	}
+
+	c.JSON(200, info)
+}

pkg/api/helpers.go

@@ -43,6 +43,7 @@ func NewError(err error) Error {
 // Middleware function to check database connection status before running queries
 func dbCheckMiddleware() gin.HandlerFunc {
 	allowedPaths := []string{
+		"/api/info",
 		"/api/connect",
 		"/api/bookmarks",
 		"/api/history",

pkg/api/routes.go

@@ -12,6 +12,7 @@ func SetupRoutes(router *gin.Engine) {
 	{
 		api.Use(dbCheckMiddleware())
 
+		api.GET("/info", GetInfo)
 		api.POST("/connect", Connect)
 		api.GET("/databases", GetDatabases)
 		api.GET("/connection", GetConnectionInfo)

pkg/command/version.go

@@ -0,0 +1,8 @@
+package command
+
+const VERSION = "0.5.2"
+
+var (
+	GitCommit string
+	BuildTime string
+)