diff --git a/cmd/admin.go b/cmd/admin.go
index a10e0e5fe54..de77143f292 100644
--- a/cmd/admin.go
+++ b/cmd/admin.go
@@ -14,6 +14,7 @@ import (
 )
 
 var (
+	// CmdAdmin represents the available admin sub-command.
 	CmdAdmin = cli.Command{
 		Name:  "admin",
 		Usage: "Preform admin operations on command line",
diff --git a/cmd/cert.go b/cmd/cert.go
index 6cd5bfade4f..2212d2972d7 100644
--- a/cmd/cert.go
+++ b/cmd/cert.go
@@ -25,10 +25,11 @@ import (
 	"github.com/urfave/cli"
 )
 
+// CmdCert represents the available cert sub-command.
 var CmdCert = cli.Command{
 	Name:  "cert",
 	Usage: "Generate self-signed certificate",
-	Description: `Generate a self-signed X.509 certificate for a TLS server. 
+	Description: `Generate a self-signed X.509 certificate for a TLS server.
 Outputs to 'cert.pem' and 'key.pem' and will overwrite existing files.`,
 	Action: runCert,
 	Flags: []cli.Flag{
diff --git a/cmd/cert_stub.go b/cmd/cert_stub.go
index 1c076f64952..a97a497e1f8 100644
--- a/cmd/cert_stub.go
+++ b/cmd/cert_stub.go
@@ -4,6 +4,7 @@
 // Copyright 2014 The Gogs Authors. All rights reserved.
 // Use of this source code is governed by a MIT-style
 // license that can be found in the LICENSE file.
+
 package cmd
 
 import (
@@ -13,6 +14,7 @@ import (
 	"github.com/urfave/cli"
 )
 
+// CmdCert represents the available cert sub-command.
 var CmdCert = cli.Command{
 	Name:        "cert",
 	Usage:       "Generate self-signed certificate",
diff --git a/cmd/dump.go b/cmd/dump.go
index 1e03ef74f0e..8af76e2fc71 100644
--- a/cmd/dump.go
+++ b/cmd/dump.go
@@ -20,6 +20,7 @@ import (
 	"github.com/go-gitea/gitea/modules/setting"
 )
 
+// CmdDump represents the available dump sub-command.
 var CmdDump = cli.Command{
 	Name:  "dump",
 	Usage: "Dump Gogs files and database",
diff --git a/cmd/serve.go b/cmd/serve.go
index 051e215db1b..c4e7d13046b 100644
--- a/cmd/serve.go
+++ b/cmd/serve.go
@@ -26,9 +26,10 @@ import (
 )
 
 const (
-	_ACCESS_DENIED_MESSAGE = "Repository does not exist or you do not have access"
+	accessDenied = "Repository does not exist or you do not have access"
 )
 
+// CmdServ represents the available serv sub-command.
 var CmdServ = cli.Command{
 	Name:        "serv",
 	Usage:       "This command should only be called by SSH shell",
@@ -179,7 +180,7 @@ func runServ(c *cli.Context) error {
 	repo, err := models.GetRepositoryByName(repoUser.ID, reponame)
 	if err != nil {
 		if models.IsErrRepoNotExist(err) {
-			fail(_ACCESS_DENIED_MESSAGE, "Repository does not exist: %s/%s", repoUser.Name, reponame)
+			fail(accessDenied, "Repository does not exist: %s/%s", repoUser.Name, reponame)
 		}
 		fail("Internal error", "Failed to get repository: %v", err)
 	}
@@ -241,7 +242,7 @@ func runServ(c *cli.Context) error {
 			if err != nil {
 				fail("Internal error", "Fail to check access: %v", err)
 			} else if mode < requestedMode {
-				clientMessage := _ACCESS_DENIED_MESSAGE
+				clientMessage := accessDenied
 				if mode >= models.ACCESS_MODE_READ {
 					clientMessage = "You do not have sufficient authorization for this action"
 				}
diff --git a/cmd/update.go b/cmd/update.go
index 450d18a08ad..ef494121e95 100644
--- a/cmd/update.go
+++ b/cmd/update.go
@@ -14,6 +14,7 @@ import (
 	"github.com/go-gitea/gitea/modules/setting"
 )
 
+// CmdUpdate represents the available update sub-command.
 var CmdUpdate = cli.Command{
 	Name:        "update",
 	Usage:       "This command should only be called by Git hook",
diff --git a/cmd/web.go b/cmd/web.go
index d5dae5badc6..ee9ee4d9519 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -48,6 +48,7 @@ import (
 	"github.com/go-gitea/gitea/routers/user"
 )
 
+// CmdWeb represents the available web sub-command.
 var CmdWeb = cli.Command{
 	Name:  "web",
 	Usage: "Start Gogs web server",
@@ -60,6 +61,7 @@ and it takes care of all the other things for you`,
 	},
 }
 
+// VerChecker is a listing of required dependency versions.
 type VerChecker struct {
 	ImportPath string
 	Version    func() string
@@ -99,7 +101,7 @@ func checkVersion() {
 	for _, c := range checkers {
 		if !version.Compare(c.Version(), c.Expected, ">=") {
 			log.Fatal(4, `Dependency outdated!
-Package '%s' current version (%s) is below requirement (%s), 
+Package '%s' current version (%s) is below requirement (%s),
 please use following command to update this package and recompile Gogs:
 go get -u %[1]s`, c.ImportPath, c.Version(), c.Expected)
 		}