Brush all the lint off this code I wrote in a haze

internal/run/cmd.go

@@ -7,7 +7,7 @@ import (
 	"syscall"
 )
 
-const HELM_BIN = "/usr/bin/helm"
+const helmBin = "/usr/bin/helm"
 
 // The cmd interface provides a generic form of exec.Cmd so that it can be mocked out in tests.
 type cmd interface {
@@ -43,7 +43,7 @@ type execCmd struct {
 	*exec.Cmd
 }
 
-var Command = func(path string, args ...string) cmd {
+var command = func(path string, args ...string) cmd {
 	return &execCmd{
 		Cmd: exec.Command(path, args...),
 	}

internal/run/help.go

@@ -4,18 +4,21 @@ import (
 	"os"
 )
 
+// Help is a step in a helm Plan that calls `helm help`.
 type Help struct {
 	cmd cmd
 }
 
+// Run launches the command.
 func (h *Help) Run() error {
 	return h.cmd.Run()
 }
 
+// NewHelp returns a new Help.
 func NewHelp() *Help {
 	h := Help{}
 
-	h.cmd = Command(HELM_BIN, "help")
+	h.cmd = command(helmBin, "help")
 	h.cmd.Stdout(os.Stdout)
 	h.cmd.Stderr(os.Stderr)
 

internal/run/help_test.go

@@ -11,14 +11,14 @@ func TestHelp(t *testing.T) {
 	defer ctrl.Finish()
 
 	mCmd := NewMockcmd(ctrl)
-	originalCommand := Command
+	originalCommand := command
 
-	Command = func(path string, args ...string) cmd {
-		assert.Equal(t, HELM_BIN, path)
+	command = func(path string, args ...string) cmd {
+		assert.Equal(t, helmBin, path)
 		assert.Equal(t, []string{"help"}, args)
 		return mCmd
 	}
-	defer func() { Command = originalCommand }()
+	defer func() { command = originalCommand }()
 
 	mCmd.EXPECT().
 		Stdout(gomock.Any())

internal/run/upgrade.go

@@ -4,21 +4,24 @@ import (
 	"os"
 )
 
+// Upgrade is a step in a helm Plan that calls `helm upgrade`.
 type Upgrade struct {
 	Chart   string
 	Release string
 	cmd     cmd
 }
 
+// Run launches the command.
 func (u *Upgrade) Run() error {
 	return u.cmd.Run()
 }
 
+// NewUpgrade creates a new Upgrade.
 func NewUpgrade(release, chart string) *Upgrade {
 	u := Upgrade{
 		Chart:   chart,
 		Release: release,
-		cmd:     Command(HELM_BIN, "upgrade", "--install", release, chart),
+		cmd:     command(helmBin, "upgrade", "--install", release, chart),
 	}
 
 	u.cmd.Stdout(os.Stdout)

internal/run/upgrade_test.go

@@ -11,15 +11,15 @@ func TestNewUpgrade(t *testing.T) {
 	defer ctrl.Finish()
 
 	mCmd := NewMockcmd(ctrl)
-	originalCommand := Command
+	originalCommand := command
 
-	Command = func(path string, args ...string) cmd {
-		assert.Equal(t, HELM_BIN, path)
+	command = func(path string, args ...string) cmd {
+		assert.Equal(t, helmBin, path)
 		assert.Equal(t, []string{"upgrade", "--install", "jonas_brothers_only_human", "at40"}, args)
 
 		return mCmd
 	}
-	defer func() { Command = originalCommand }()
+	defer func() { command = originalCommand }()
 
 	mCmd.EXPECT().
 		Stdout(gomock.Any())