fix: fix threshold persistence after hibernation

Fix an issue, #11, with the
charging threshold where it would not persist after the system went into
hibernation on some distributions.

README.md

@@ -41,7 +41,7 @@ There have also been some [problems setting the charging threshold inside of a v
 
 ## Installation
 
-Precompiled binaries (Linux x86-64) are available from the [GitHub releases page](https://github.com/leveson/bat/releases), the latest of which can be downloaded from [here](https://github.com/leveson/bat/releases/download/0.7/bat).
+Precompiled binaries (Linux x86-64) are available from the [GitHub releases page](https://github.com/leveson/bat/releases), the latest of which can be downloaded from [here](https://github.com/leveson/bat/releases/download/0.8/bat).
 
 After downloading the binary, give it permission to execute on your system by running the following command. For example, assuming the binary is located in the user's Downloads folder:
 

cmd/bat/main.go

@@ -62,7 +62,7 @@ func main() {
                 log.Fatal(err)
             }
         }
-        fmt.Println("Persistence of the current threshold enabled.")
+        fmt.Println("Persistence of the current charging threshold enabled.")
     case "-r", "--reset":
         err := persist.RemoveServices()
         if err != nil {
@@ -72,6 +72,7 @@ func main() {
             }
             log.Fatal(err)
         }
+        fmt.Println("Charging threshold persistence reset.")
     case "-s", "--status":
         printFile("status")
     case "-t", "--threshold":

internal/docs/version.txt

@@ -1,3 +1,3 @@
-bat 0.7
+bat 0.8
 Copyright (c) 2021 Tshaka Eric Lekholoane.
 MIT Licence.

internal/persist/persist.go

@@ -44,7 +44,7 @@ func hasRequiredSystemd() (bool, error) {
 // level between restarts. If the call is successful, the return value
 // is nil.
 func RemoveServices() error {
-    for _, service := range [2]string{"boot", "sleep"} {
+    for _, service := range [3]string{"boot", "hibernation", "sleep"} {
         err := os.Remove(
             fmt.Sprintf("/etc/systemd/system/bat-%s.service", service))
         if err != nil {
@@ -89,8 +89,9 @@ func WriteServices() error {
     if err != nil {
         return err
     }
-    units := [2]Service{
+    units := [3]Service{
         {"boot", "multi-user", threshold},
+        {"hibernation", "hibernate", threshold},
         {"sleep", "suspend", threshold},
     }
     tmpl, err := template.New("unit").Parse(unit)

internal/persist/unit.tmpl

@@ -1,5 +1,5 @@
 [Unit]
-Description=Persist the battery charging threshold between {{ .Event }} 
+Description=Persist the battery charging threshold after {{ .Event }} 
 After={{ .Target }}.target
 StartLimitBurst=0