109 lines
2.4 KiB
Go
109 lines
2.4 KiB
Go
|
// +build !windows
|
||
|
|
|
||
|
|
// TODO: Make all these methods POST
|
||
|
|
|
||
|
|
package v1
|
||
|
|
|
||
|
|
import (
|
||
|
|
"io"
|
||
|
|
"io/ioutil"
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
"os/exec"
|
||
|
|
"syscall"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"zxq.co/ripple/rippleapi/common"
|
||
|
|
)
|
||
|
|
|
||
|
|
// MetaRestartGET restarts the API with Zero Downtime™.
|
||
|
|
func MetaRestartGET(md common.MethodData) common.CodeMessager {
|
||
|
|
proc, err := os.FindProcess(syscall.Getpid())
|
||
|
|
if err != nil {
|
||
|
|
return common.SimpleResponse(500, "couldn't find process. what the fuck?")
|
||
|
|
}
|
||
|
|
go func() {
|
||
|
|
time.Sleep(time.Second)
|
||
|
|
proc.Signal(syscall.SIGUSR2)
|
||
|
|
}()
|
||
|
|
return common.SimpleResponse(200, "brb")
|
||
|
|
}
|
||
|
|
|
||
|
|
var upSince = time.Now()
|
||
|
|
|
||
|
|
type metaUpSinceResponse struct {
|
||
|
|
common.ResponseBase
|
||
|
|
Code int `json:"code"`
|
||
|
|
Since int64 `json:"since"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// MetaUpSinceGET retrieves the moment the API application was started.
|
||
|
|
// Mainly used to get if the API was restarted.
|
||
|
|
func MetaUpSinceGET(md common.MethodData) common.CodeMessager {
|
||
|
|
return metaUpSinceResponse{
|
||
|
|
Code: 200,
|
||
|
|
Since: int64(upSince.UnixNano()),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// MetaUpdateGET updates the API to the latest version, and restarts it.
|
||
|
|
func MetaUpdateGET(md common.MethodData) common.CodeMessager {
|
||
|
|
if f, err := os.Stat(".git"); err == os.ErrNotExist || !f.IsDir() {
|
||
|
|
return common.SimpleResponse(500, "instance is not using git")
|
||
|
|
}
|
||
|
|
go func() {
|
||
|
|
if !execCommand("git", "pull", "origin", "master") {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
// go get
|
||
|
|
// -u: update all dependencies
|
||
|
|
// -d: stop after downloading deps
|
||
|
|
if !execCommand("go", "get", "-v", "-u", "-d") {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
if !execCommand("bash", "-c", "go build -v -ldflags \"-X main.Version=`git rev-parse HEAD`\"") {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
proc, err := os.FindProcess(syscall.Getpid())
|
||
|
|
if err != nil {
|
||
|
|
log.Println(err)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
proc.Signal(syscall.SIGUSR2)
|
||
|
|
}()
|
||
|
|
return common.SimpleResponse(200, "Started updating! "+surpriseMe())
|
||
|
|
}
|
||
|
|
|
||
|
|
func execCommand(command string, args ...string) bool {
|
||
|
|
cmd := exec.Command(command, args...)
|
||
|
|
cmd.Env = os.Environ()
|
||
|
|
stdout, err := cmd.StdoutPipe()
|
||
|
|
if err != nil {
|
||
|
|
log.Println(err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
stderr, err := cmd.StderrPipe()
|
||
|
|
if err != nil {
|
||
|
|
log.Println(err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
if err := cmd.Start(); err != nil {
|
||
|
|
log.Println(err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
data, err := ioutil.ReadAll(stderr)
|
||
|
|
if err != nil {
|
||
|
|
log.Println(err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
// Bob. We got a problem.
|
||
|
|
if len(data) != 0 {
|
||
|
|
log.Println(string(data))
|
||
|
|
}
|
||
|
|
io.Copy(os.Stdout, stdout)
|
||
|
|
cmd.Wait()
|
||
|
|
stdout.Close()
|
||
|
|
return true
|
||
|
|
}
|