Modernize invertergui: MQTT write support, HA integration, UI updates

vendor/github.com/prometheus/procfs/proc.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Prometheus Authors
+// Copyright The Prometheus Authors
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -37,9 +37,9 @@ type Proc struct {
 type Procs []Proc
 
 var (
-	ErrFileParse  = errors.New("Error Parsing File")
-	ErrFileRead   = errors.New("Error Reading File")
-	ErrMountPoint = errors.New("Error Accessing Mount point")
+	ErrFileParse  = errors.New("error parsing file")
+	ErrFileRead   = errors.New("error reading file")
+	ErrMountPoint = errors.New("error accessing mount point")
 )
 
 func (p Procs) Len() int           { return len(p) }
@@ -49,7 +49,7 @@ func (p Procs) Less(i, j int) bool { return p[i].PID < p[j].PID }
 // Self returns a process for the current process read via /proc/self.
 func Self() (Proc, error) {
 	fs, err := NewFS(DefaultMountPoint)
-	if err != nil || errors.Unwrap(err) == ErrMountPoint {
+	if err != nil || errors.Is(err, ErrMountPoint) {
 		return Proc{}, err
 	}
 	return fs.Self()
@@ -79,7 +79,7 @@ func (fs FS) Self() (Proc, error) {
 	if err != nil {
 		return Proc{}, err
 	}
-	pid, err := strconv.Atoi(strings.Replace(p, string(fs.proc), "", -1))
+	pid, err := strconv.Atoi(strings.ReplaceAll(p, string(fs.proc), ""))
 	if err != nil {
 		return Proc{}, err
 	}
@@ -111,7 +111,7 @@ func (fs FS) AllProcs() (Procs, error) {
 
 	names, err := d.Readdirnames(-1)
 	if err != nil {
-		return Procs{}, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err)
+		return Procs{}, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err)
 	}
 
 	p := Procs{}
@@ -137,7 +137,7 @@ func (p Proc) CmdLine() ([]string, error) {
 		return []string{}, nil
 	}
 
-	return strings.Split(string(bytes.TrimRight(data, string("\x00"))), string(byte(0))), nil
+	return strings.Split(string(bytes.TrimRight(data, "\x00")), "\x00"), nil
 }
 
 // Wchan returns the wchan (wait channel) of a process.
@@ -212,7 +212,7 @@ func (p Proc) FileDescriptors() ([]uintptr, error) {
 	for i, n := range names {
 		fd, err := strconv.ParseInt(n, 10, 32)
 		if err != nil {
-			return nil, fmt.Errorf("%s: Cannot parse line: %v: %w", ErrFileParse, i, err)
+			return nil, fmt.Errorf("%w: Cannot parse line: %v: %w", ErrFileParse, i, err)
 		}
 		fds[i] = uintptr(fd)
 	}
@@ -297,7 +297,7 @@ func (p Proc) fileDescriptors() ([]string, error) {
 
 	names, err := d.Readdirnames(-1)
 	if err != nil {
-		return nil, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err)
+		return nil, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err)
 	}
 
 	return names, nil