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Fix inability to display command names with whitespace in MacOS

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Co-authored-by: Fiona Thompson <fionabronwen@gmail.com>
This commit is contained in:
whuang8 2019-02-09 16:43:09 -06:00
parent 9e7f58b769
commit 60b913a93e
1 changed files with 19 additions and 10 deletions
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29
src/widgets/proc_other.go
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@ -10,6 +10,13 @@ import (
"strings"
)
const (
// Define column widths for ps output used in Processes()
five = "12345"
ten = five + five
fifty = ten + ten + ten + ten + ten
)
func (self *Proc) update() {
processes, err := Processes()
if err != nil {
@ -29,33 +36,35 @@ func (self *Proc) update() {
}
func Processes() ([]Process, error) {
output, err := exec.Command("ps", "-wwcaxo", "pid,comm,pcpu,pmem,args").Output()
keywords := fmt.Sprintf("pid=%s,comm=%s,pcpu=%s,pmem=%s,args", ten, fifty, five, five)
output, err := exec.Command("ps", "-wwcaxo", keywords).Output()
if err != nil {
return nil, fmt.Errorf("failed to execute 'ps' command: %v", err)
}
// converts to []string and removes the header
strOutput := strings.Split(strings.TrimSpace(string(output)), "\n")[1:]
processes := []Process{}
for _, line := range strOutput {
split := strings.Fields(line)
pid, err := strconv.Atoi(split[0])
pid, err := strconv.Atoi(strings.TrimSpace(line[0:10]))
if err != nil {
log.Printf("failed to convert first field to int: %v. split: %v", err, split)
log.Printf("failed to convert first field to int: %v. split: %v", err, line)
}
cpu, err := strconv.ParseFloat(split[2], 64)
cpu, err := strconv.ParseFloat(strings.TrimSpace(line[63:68]), 64)
if err != nil {
log.Printf("failed to convert third field to float: %v. split: %v", err, split)
log.Printf("failed to convert third field to float: %v. split: %v", err, line)
}
mem, err := strconv.ParseFloat(split[3], 64)
mem, err := strconv.ParseFloat(strings.TrimSpace(line[69:74]), 64)
if err != nil {
log.Printf("failed to convert fourth field to float: %v. split: %v", err, split)
log.Printf("failed to convert fourth field to float: %v. split: %v", err, line)
}
process := Process{
PID: pid,
Command: split[1],
Command: strings.TrimSpace(line[11:61]),
CPU: cpu,
Mem: mem,
Args: strings.Join(split[4:], " "),
Args: line[74:],
}
processes = append(processes, process)
}