Update CI script

.gitlab-ci.yml

@@ -1,8 +1,26 @@
+image: golang:latest
+
 stages:
-  - test
+  - validate
+
+fmt:
+  stage: validate
+  script:
+    - gofmt -l -s -e .
+    - exit $(gofmt -l -s -e . | wc -l)
+
+lint:
+  stage: validate
+  script:
+    - go get -u golang.org/x/lint/golint
+    - golint -set_exit_status
+
+vet:
+  stage: validate
+  script:
+    - go vet -composites=false ./...
 
 test:
-  image: golang:latest
-  stage: test
+  stage: validate
   script:
-    - go test -v ./...
+    - go test -race -v ./...

entry.go

@@ -13,11 +13,12 @@ import (
 // EntryType may be Application, Link or Directory.
 type EntryType int
 
+// All entry types
 const (
-	Unknown EntryType = iota
-	Application
-	Link
-	Directory
+	Unknown     EntryType = iota // Unspecified or unrecognized
+	Application                  // Execute command
+	Link                         // Open browser
+	Directory                    // Open file manager
 )
 
 func (t EntryType) String() string {

run.go

@@ -6,7 +6,9 @@ import (
 	"os"
 )
 
-func RunScript(ex string) (string, error) {
+// RunScript creates a temporary run script consisting of a bash script which
+// removes itself and executes the specified command.
+func RunScript(exec string) (string, error) {
 	runScript, err := ioutil.TempFile("", "run-*")
 	if err != nil {
 		return "", err
@@ -22,7 +24,7 @@ func RunScript(ex string) (string, error) {
 		runScript.Close()
 		return "", err
 	}
-	_, err = runScript.WriteString("exec " + ex + "\n")
+	_, err = runScript.WriteString("exec " + exec + "\n")
 	if err != nil {
 		runScript.Close()
 		return "", err