chore: various lint corrections

Make various lint corrections in order to appease `staticcheck`.

internal/cheatpath/filter_test.go

@@ -46,7 +46,7 @@ func TestFilterFailure(t *testing.T) {
 	}
 
 	// filter the paths
-	paths, err := Filter(paths, "qux")
+	_, err := Filter(paths, "qux")
 	if err == nil {
 		t.Errorf("failed to return an error on non-existent cheatpath")
 	}

internal/cheatpath/writeable.go

@@ -11,12 +11,10 @@ func Writeable(cheatpaths []Cheatpath) (Cheatpath, error) {
 	// NB: we're going backwards because we assume that the most "local"
 	// cheatpath will be specified last in the configs
 	for i := len(cheatpaths) - 1; i >= 0; i-- {
-
 		// if the cheatpath is not read-only, it is writeable, and thus returned
-		if cheatpaths[i].ReadOnly == false {
+		if !cheatpaths[i].ReadOnly {
 			return cheatpaths[i], nil
 		}
-
 	}
 
 	// otherwise, return an error

internal/config/config.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -29,7 +28,7 @@ type Config struct {
 func New(opts map[string]interface{}, confPath string, resolve bool) (Config, error) {
 
 	// read the config file
-	buf, err := ioutil.ReadFile(confPath)
+	buf, err := os.ReadFile(confPath)
 	if err != nil {
 		return Config{}, fmt.Errorf("could not read config file: %v", err)
 	}

internal/config/init.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 )
@@ -16,7 +15,7 @@ func Init(confpath string, configs string) error {
 	}
 
 	// write the config file
-	if err := ioutil.WriteFile(confpath, []byte(configs), 0644); err != nil {
+	if err := os.WriteFile(confpath, []byte(configs), 0644); err != nil {
 		return fmt.Errorf("failed to create file: %v", err)
 	}
 

internal/config/init_test.go

@@ -1,7 +1,6 @@
 package config
 
 import (
-	"io/ioutil"
 	"os"
 	"testing"
 )
@@ -10,7 +9,7 @@ import (
 func TestInit(t *testing.T) {
 
 	// initialize a temporary config file
-	confFile, err := ioutil.TempFile("", "cheat-test")
+	confFile, err := os.CreateTemp("", "cheat-test")
 	if err != nil {
 		t.Errorf("failed to create temp file: %v", err)
 	}
@@ -25,7 +24,7 @@ func TestInit(t *testing.T) {
 	}
 
 	// read back the config file contents
-	bytes, err := ioutil.ReadFile(confFile.Name())
+	bytes, err := os.ReadFile(confFile.Name())
 	if err != nil {
 		t.Errorf("failed to read config file: %v", err)
 	}

internal/config/path_test.go

@@ -1,7 +1,6 @@
 package config
 
 import (
-	"io/ioutil"
 	"os"
 	"testing"
 )
@@ -24,7 +23,7 @@ func TestPathConfigNotExists(t *testing.T) {
 func TestPathConfigExists(t *testing.T) {
 
 	// initialize a temporary config file
-	confFile, err := ioutil.TempFile("", "cheat-test")
+	confFile, err := os.CreateTemp("", "cheat-test")
 	if err != nil {
 		t.Errorf("failed to create temp file: %v", err)
 	}

internal/display/faint.go

@@ -10,7 +10,7 @@ import (
 func Faint(str string, conf config.Config) string {
 	// make `str` faint only if colorization has been requested
 	if conf.Colorize {
-		return fmt.Sprintf(fmt.Sprintf("\033[2m%s\033[0m", str))
+		return fmt.Sprintf("\033[2m%s\033[0m", str)
 	}
 
 	// otherwise, return the string unmodified

internal/display/underline.go

@@ -4,5 +4,5 @@ import "fmt"
 
 // Underline returns an underlined string
 func Underline(str string) string {
-	return fmt.Sprintf(fmt.Sprintf("\033[4m%s\033[0m", str))
+	return fmt.Sprintf("\033[4m%s\033[0m", str)
 }

internal/display/write.go

@@ -31,7 +31,7 @@ func Write(out string, conf config.Config) {
 	// handle errors
 	err := cmd.Run()
 	if err != nil {
-		fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to write to pager: %v", err))
+		fmt.Fprintf(os.Stderr, "failed to write to pager: %v\n", err)
 		os.Exit(1)
 	}
 }

internal/installer/prompt.go

@@ -14,7 +14,7 @@ func Prompt(prompt string, def bool) (bool, error) {
 	reader := bufio.NewReader(os.Stdin)
 
 	// display the prompt
-	fmt.Print(fmt.Sprintf("%s: ", prompt))
+	fmt.Printf("%s: ", prompt)
 
 	// read the answer
 	ans, err := reader.ReadString('\n')

internal/sheet/copy_test.go

@@ -1,7 +1,6 @@
 package sheet
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
@@ -13,7 +12,7 @@ func TestCopyFlat(t *testing.T) {
 
 	// mock a cheatsheet file
 	text := "this is the cheatsheet text"
-	src, err := ioutil.TempFile("", "foo-src")
+	src, err := os.CreateTemp("", "foo-src")
 	if err != nil {
 		t.Errorf("failed to mock cheatsheet: %v", err)
 	}
@@ -41,7 +40,7 @@ func TestCopyFlat(t *testing.T) {
 	}
 
 	// assert that the destination file contains the correct text
-	got, err := ioutil.ReadFile(outpath)
+	got, err := os.ReadFile(outpath)
 	if err != nil {
 		t.Errorf("failed to read destination file: %v", err)
 	}
@@ -60,7 +59,7 @@ func TestCopyDeep(t *testing.T) {
 
 	// mock a cheatsheet file
 	text := "this is the cheatsheet text"
-	src, err := ioutil.TempFile("", "foo-src")
+	src, err := os.CreateTemp("", "foo-src")
 	if err != nil {
 		t.Errorf("failed to mock cheatsheet: %v", err)
 	}
@@ -94,7 +93,7 @@ func TestCopyDeep(t *testing.T) {
 	}
 
 	// assert that the destination file contains the correct text
-	got, err := ioutil.ReadFile(outpath)
+	got, err := os.ReadFile(outpath)
 	if err != nil {
 		t.Errorf("failed to read destination file: %v", err)
 	}

internal/sheet/sheet.go

@@ -2,7 +2,7 @@ package sheet
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"sort"
 
 	"github.com/cheat/cheat/internal/frontmatter"
@@ -29,7 +29,7 @@ func New(
 ) (Sheet, error) {
 
 	// read the cheatsheet file
-	markdown, err := ioutil.ReadFile(path)
+	markdown, err := os.ReadFile(path)
 	if err != nil {
 		return Sheet{}, fmt.Errorf("failed to read file: %s, %v", path, err)
 	}