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sysinfo_unix.go
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sysinfo_unix.go
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//go:build !darwin && !windows
// +build !darwin,!windows
package sysinfo
import (
"os"
"regexp"
"strconv"
"strings"
hl "github.com/mjwhitta/hilighter"
"github.com/mjwhitta/pathname"
)
func (s *SysInfo) colors() string {
s.Colors = strings.Join(
[]string{
hl.Hilights([]string{"light_black", "on_black"}, "▄▄▄"),
hl.Hilights([]string{"light_red", "on_red"}, "▄▄▄"),
hl.Hilights([]string{"light_green", "on_green"}, "▄▄▄"),
hl.Hilights([]string{"light_yellow", "on_yellow"}, "▄▄▄"),
hl.Hilights([]string{"light_blue", "on_blue"}, "▄▄▄"),
hl.Hilights(
[]string{"light_magenta", "on_magenta"},
"▄▄▄",
),
hl.Hilights([]string{"light_cyan", "on_cyan"}, "▄▄▄"),
hl.Hilights([]string{"light_white", "on_white"}, "▄▄▄"),
},
"",
)
return s.Colors
}
func (s *SysInfo) cpu() string {
var e error
var info []byte
var r *regexp.Regexp
if info, e = os.ReadFile("/proc/cpuinfo"); e != nil {
s.CPU = ""
return s.CPU
}
r = regexp.MustCompile(`(cpu model|model name)\s+:\s+(.+)`)
for _, match := range r.FindAllStringSubmatch(string(info), -1) {
s.CPU = match[2]
break
}
r = regexp.MustCompile(`\((R|TM)\)| (@|CPU)`)
s.CPU = r.ReplaceAllString(s.CPU, "")
r = regexp.MustCompile(`\s+`)
s.CPU = r.ReplaceAllString(s.CPU, " ")
return s.CPU
}
func (s *SysInfo) filesystems() []string {
var out []string
s.RootFS = s.fsUsage("/")
s.HomeFS = s.fsUsage("/home")
if s.RootFS != "" {
out = append(out, s.RootFS)
}
if (s.HomeFS != "") && (s.HomeFS != s.RootFS) {
out = append(out, s.HomeFS)
} else {
s.HomeFS = ""
}
return out
}
func (s *SysInfo) fsUsage(path string) string {
var usage string
var words []string
usage = s.exec("df", "-h", path)
for _, line := range strings.Split(usage, "\n") {
words = strings.Fields(line)
if (len(words) == 6) && (words[5] == path) {
return words[2] + " / " + words[1] + " (" + words[4] + ")"
}
}
return ""
}
func (s *SysInfo) kernel() string {
var e error
var kernel []byte
kernel, e = os.ReadFile("/proc/sys/kernel/osrelease")
if e == nil {
s.Kernel = strings.TrimSpace(string(kernel))
}
return s.Kernel
}
func (s *SysInfo) operatingSystem() string {
var e error
var matches [][]string
var r *regexp.Regexp
var release []byte
if ok, _ := pathname.DoesExist("/etc/os-release"); ok {
if release, e = os.ReadFile("/etc/os-release"); e != nil {
s.OS = ""
return s.OS
}
r = regexp.MustCompile(`PRETTY_NAME="(.+)"`)
matches = r.FindAllStringSubmatch(string(release), -1)
for _, match := range matches {
s.OS = match[1] + " " + s.exec("uname", "-m")
break
}
} else {
s.OS = s.exec("uname", "-m", "-s")
}
return s.OS
}
func (s *SysInfo) ram() string {
var matches [][]string
var r *regexp.Regexp
var total int
var used int
r = regexp.MustCompile(`Mem:\s+(\d+)\s+(\d+)`)
matches = r.FindAllStringSubmatch(s.exec("free"), -1)
for _, match := range matches {
total, _ = strconv.Atoi(match[1])
used, _ = strconv.Atoi(match[2])
total /= 1024
used /= 1024
s.RAM = strconv.Itoa(used) + " MB"
s.RAM += " / "
s.RAM += strconv.Itoa(total) + " MB"
break
}
return s.RAM
}
func (s *SysInfo) shell() string {
var exists bool
var sh string
if sh, exists = os.LookupEnv("SHELL"); exists {
s.Shell = strings.TrimSpace(sh)
}
return s.Shell
}
func (s *SysInfo) tty() string {
var e error
if s.TTY, e = os.Readlink("/proc/self/fd/0"); e != nil {
s.TTY = ""
}
return s.TTY
}
func (s *SysInfo) uptime() string {
var r *regexp.Regexp
s.Uptime = s.exec("uptime")
// Fail fast
if s.Uptime == "" {
return s.Uptime
}
// Strip extra whitespace
r = regexp.MustCompile(`\s+`)
s.Uptime = r.ReplaceAllString(s.Uptime, " ")
// Strip leading and trailing data
r = regexp.MustCompile(`^.*up\s+|,\s+\d+\s+user.+$`)
s.Uptime = r.ReplaceAllString(s.Uptime, "")
// Convert hours:mins to match days
r = regexp.MustCompile(`0?(\d+):0?(\d+)`)
s.Uptime = r.ReplaceAllString(s.Uptime, "$1 hour, $2 min")
// Remove 0 hours and mins
r = regexp.MustCompile(`(^|,\s+)0\s+(hour|min)`)
s.Uptime = r.ReplaceAllString(s.Uptime, "")
// Make plural if needed
r = regexp.MustCompile(`((\d\d+|[2-9])\s+(hour|min))`)
s.Uptime = r.ReplaceAllString(s.Uptime, "${1}s")
// Remove leading and trailing commas or whitespace
r = regexp.MustCompile(`^(,?\s*)+|(,?\s*)+$`)
s.Uptime = r.ReplaceAllString(s.Uptime, "")
if s.Uptime == "" {
return "0 mins"
}
return s.Uptime
}