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ServeFile

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This commit is contained in:
Jae Kwon
2015-04-10 02:12:17 -07:00
parent 06b167c669
commit 0bb6c111bb
4 changed files with 68 additions and 34 deletions
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49
process/process.go
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@ -1,6 +1,7 @@
package process
import (
"bytes"
"fmt"
"io"
"os"
@ -8,23 +9,24 @@ import (
"time"
)
func makeFile(prefix string) *os.File {
func makeFile(prefix string) (string, *os.File) {
now := time.Now()
filename := fmt.Sprintf("%v_%v.out", prefix, now.Format("2006_01_02_15_04_05_MST"))
f, err := os.OpenFile(filename, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
path := fmt.Sprintf("%v_%v.out", prefix, now.Format("2006_01_02_15_04_05_MST"))
file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
panic(err)
}
return f
return path, file
}
type Process struct {
Label string
ExecPath string
StartTime time.Time
Cmd *exec.Cmd `json:"-"`
Output *os.File `json:"-"`
ExitState *os.ProcessState `json:"-"`
Label string
ExecPath string
StartTime time.Time
OutputPath string
Cmd *exec.Cmd `json:"-"`
ExitState *os.ProcessState `json:"-"`
OutputFile *os.File `json:"-"`
}
const (
@ -34,19 +36,22 @@ const (
// execPath: command name
// args: args to command. (should not include name)
func Create(mode int, label string, execPath string, args ...string) *Process {
out := makeFile(label)
func Create(mode int, label string, execPath string, args []string, input string) *Process {
outPath, outFile := makeFile(label)
cmd := exec.Command(execPath, args...)
switch mode {
case ProcessModeStd:
cmd.Stdout = io.MultiWriter(os.Stdout, out)
cmd.Stderr = io.MultiWriter(os.Stderr, out)
cmd.Stdout = io.MultiWriter(os.Stdout, outFile)
cmd.Stderr = io.MultiWriter(os.Stderr, outFile)
cmd.Stdin = nil
case ProcessModeDaemon:
cmd.Stdout = out
cmd.Stderr = out
cmd.Stdout = outFile
cmd.Stderr = outFile
cmd.Stdin = nil
}
if input != "" {
cmd.Stdin = bytes.NewReader([]byte(input))
}
if err := cmd.Start(); err != nil {
fmt.Printf("Failed to run command. %v\n", err)
return nil
@ -54,11 +59,13 @@ func Create(mode int, label string, execPath string, args ...string) *Process {
fmt.Printf("Success!")
}
return &Process{
Label: label,
ExecPath: execPath,
StartTime: time.Now(),
Cmd: cmd,
Output: out,
Label: label,
ExecPath: execPath,
StartTime: time.Now(),
OutputPath: outPath,
Cmd: cmd,
ExitState: nil,
OutputFile: outFile,
}
}