Update deprecated funcs and gh actions (#123)

* migrate deprecated functions

* update github actions

1 files changed, 5 insertions, 6 deletions

diff --git a/main.go b/main.go
index d5f8d69..de64b90 100644
--- a/main.go
+++ b/main.go
@@ -6,7 +6,6 @@ import (
         "fmt"
         "io"
         "io/fs"
-        "io/ioutil"
         "log"
         "net/http"
         "os"
@@ -103,7 +102,7 @@ func handleError(err error, desc string, isFatal bool) {
 // returns its location.
 func writeRulesFiles(content fs.FS) string {
         // create temporary folder structure
-        rulesPath, err := ioutil.TempDir(os.TempDir(), TempDirPrefix)
+        rulesPath, err := os.MkdirTemp(os.TempDir(), TempDirPrefix)
         handleError(err, "unable to create temporary folder", true)
         err = os.Mkdir(path.Join(rulesPath, "whitelists"), 0755)
         handleError(err, "unable to create temporary subfolder", true)
@@ -113,7 +112,7 @@ func writeRulesFiles(content fs.FS) string {
                 // read embedded content
                 f, err := content.Open(path.Join("data", rulesFile))
                 handleError(err, "unable to read embedded rule", true)
-                ruleData, err := ioutil.ReadAll(f)
+                ruleData, err := io.ReadAll(f)
 
                 // write to temporary file
                 err = os.WriteFile(path.Join(rulesPath, rulesFile), ruleData, 0640)
@@ -141,12 +140,12 @@ func updateRules() {
                         err := resp.Body.Close()
                         handleError(err, "unable to close response body", false)
                 }()
-                data, err := ioutil.ReadAll(resp.Body)
+                data, err := io.ReadAll(resp.Body)
                 handleError(err, "unable to read response body", false)
                 return data
         }
         writeFile := func(dst string, data []byte) {
-                err := ioutil.WriteFile(dst, data, 0640)
+                err := os.WriteFile(dst, data, 0640)
                 handleError(err, "unable to write downloaded file", true)
         }
 
@@ -276,7 +275,7 @@ func loadRulesFile(fileName string) (*yara.Rules, error) {
         }
 
         // read file content
-        data, err := ioutil.ReadFile(ruleName)
+        data, err := os.ReadFile(ruleName)
         if err != nil {
                 return nil, fmt.Errorf("unable to read rules file: %v", err)
         }