feat: add a comment for all functions

CHANGELOG.md

@@ -7,9 +7,13 @@ Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## Unreleased
 
+### Added
+
+- A comment for all functions
+
 ### Removed
 
-- duplicate array interval
+- Duplicate array interval
 
 ## v1.0.0 - 2019-06-25
 

proc.go

@@ -24,12 +24,14 @@ import (
   "strconv"
 )
 
+// Proc is a struct with process information
 type Proc struct {
   Pid int
   CmdLine string
   Swap int
 }
 
+// NewProc initialize a new Proc struct
 func NewProc(pid int) *Proc {
   proc := new(Proc)
   proc.Pid = pid
@@ -39,6 +41,7 @@ func NewProc(pid int) *Proc {
   return proc
 }
 
+// CmdLine return the command line for a process
 func CmdLine(pid int) string {
   data, err := ioutil.ReadFile("/proc/" + strconv.Itoa(pid) + "/cmdline")
   if err != nil {
@@ -49,6 +52,7 @@ func CmdLine(pid int) string {
   return cmdline
 }
 
+// Swap return the swap usage for a process
 func Swap(pid int) int {
   data, err := ioutil.ReadFile("/proc/" + strconv.Itoa(pid) + "/status")
   if err != nil {

swapus.go

@@ -26,6 +26,7 @@ import (
   "path/filepath"
 )
 
+// Variable setted by option
 var (
   LIMIT   = flag.Int("limit", 20, "limit the number of processes to print")
   REVERSE = flag.Bool("reverse", false, "reverse the list of processes to print")