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out-of-tree/daemon/commands.go

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package daemon
import (
"database/sql"
"errors"
"fmt"
"io"
"net"
"os"
"os/exec"
"path/filepath"
"sync"
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"time"
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"github.com/davecgh/go-spew/spew"
"github.com/google/uuid"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"code.dumpstack.io/tools/out-of-tree/api"
"code.dumpstack.io/tools/out-of-tree/config"
"code.dumpstack.io/tools/out-of-tree/config/dotfiles"
"code.dumpstack.io/tools/out-of-tree/daemon/db"
)
type cmdenv struct {
Conn net.Conn
Log zerolog.Logger
DB *sql.DB
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WG *sync.WaitGroup
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KernelConfig string
}
func command(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
e.Log.Trace().Msgf("%v", spew.Sdump(req))
defer e.Log.Trace().Msgf("%v", spew.Sdump(resp))
e.WG.Add(1)
defer e.WG.Done()
e.Log.Debug().Msgf("%v", req.Command)
switch req.Command {
case api.RawMode:
err = rawMode(req, e)
case api.AddJob:
err = addJob(req, resp, e)
case api.ListJobs:
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err = listJobs(req, resp, e)
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case api.AddRepo:
err = addRepo(req, resp, e)
case api.ListRepos:
err = listRepos(resp, e)
case api.Kernels:
err = kernels(resp, e)
case api.JobStatus:
err = jobStatus(req, resp, e)
case api.JobLogs:
err = jobLogs(req, resp, e)
default:
err = errors.New("unknown command")
}
resp.Err = err
return
}
type logWriter struct {
log zerolog.Logger
}
func (lw logWriter) Write(p []byte) (n int, err error) {
n = len(p)
//lw.log.Trace().Msgf("%v", strconv.Quote(string(p)))
return
}
func rawMode(req *api.Req, e cmdenv) (err error) {
uuid := uuid.New().String()
lwsend := logWriter{log.With().Str("uuid", uuid).Str("git", "send").Logger()}
lwrecv := logWriter{log.With().Str("uuid", uuid).Str("git", "recv").Logger()}
conn, err := net.Dial("tcp", ":9418")
if err != nil {
log.Error().Err(err).Msg("dial")
return
}
go io.Copy(e.Conn, io.TeeReader(conn, lwrecv))
io.Copy(conn, io.TeeReader(e.Conn, lwsend))
return
}
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func listJobs(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
var params api.ListJobsParams
err = req.GetData(&params)
if err != nil {
return
}
jobs, err := db.Jobs(e.DB, "updated >= ?", params.UpdatedAfter)
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if err != nil {
return
}
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var result []api.Job
for _, j := range jobs {
if params.Group != "" && j.Group != params.Group {
continue
}
if params.Repo != "" && j.RepoName != params.Repo {
continue
}
if params.Commit != "" && j.Commit != params.Commit {
continue
}
if params.Status != "" && j.Status != params.Status {
continue
}
result = append(result, j)
}
resp.SetData(&result)
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return
}
func addJob(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
var job api.Job
err = req.GetData(&job)
if err != nil {
return
}
job.GenUUID()
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job.Created = time.Now()
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var repos []api.Repo
repos, err = db.Repos(e.DB)
if err != nil {
return
}
var found bool
for _, r := range repos {
if job.RepoName == r.Name {
found = true
}
}
if !found {
err = errors.New("repo does not exist")
return
}
if job.RepoName == "" {
err = errors.New("repo name cannot be empty")
return
}
if job.Commit == "" {
err = errors.New("invalid commit")
return
}
err = db.AddJob(e.DB, &job)
if err != nil {
return
}
resp.SetData(&job.UUID)
return
}
func listRepos(resp *api.Resp, e cmdenv) (err error) {
repos, err := db.Repos(e.DB)
if err != nil {
e.Log.Error().Err(err).Msg("")
return
}
for i := range repos {
repos[i].Path = dotfiles.Dir("daemon/repos",
repos[i].Name)
}
log.Trace().Msgf("%v", spew.Sdump(repos))
resp.SetData(&repos)
return
}
func addRepo(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
var repo api.Repo
err = req.GetData(&repo)
if err != nil {
return
}
var repos []api.Repo
repos, err = db.Repos(e.DB)
if err != nil {
return
}
for _, r := range repos {
log.Debug().Msgf("%v, %v", r, repo.Name)
if repo.Name == r.Name {
err = fmt.Errorf("repo already exist")
return
}
}
cmd := exec.Command("git", "init", "--bare")
cmd.Dir = dotfiles.Dir("daemon/repos", repo.Name)
var out []byte
out, err = cmd.Output()
e.Log.Debug().Msgf("%v -> %v\n%v", cmd, err, string(out))
if err != nil {
return
}
err = db.AddRepo(e.DB, &repo)
return
}
func kernels(resp *api.Resp, e cmdenv) (err error) {
kcfg, err := config.ReadKernelConfig(e.KernelConfig)
if err != nil {
e.Log.Error().Err(err).Msg("read kernels config")
return
}
e.Log.Info().Msgf("send back %d kernels", len(kcfg.Kernels))
resp.SetData(&kcfg.Kernels)
return
}
func jobLogs(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
var uuid string
err = req.GetData(&uuid)
if err != nil {
return
}
logdir := filepath.Join(dotfiles.File("daemon/logs"), uuid)
if _, err = os.Stat(logdir); err != nil {
return
}
files, err := os.ReadDir(logdir)
if err != nil {
return
}
var logs []api.JobLog
for _, f := range files {
if f.IsDir() {
continue
}
logfile := filepath.Join(logdir, f.Name())
var buf []byte
buf, err = os.ReadFile(logfile)
if err != nil {
return
}
logs = append(logs, api.JobLog{
Name: f.Name(),
Text: string(buf),
})
}
resp.SetData(&logs)
return
}
func jobStatus(req *api.Req, resp *api.Resp, e cmdenv) (err error) {
var uuid string
err = req.GetData(&uuid)
if err != nil {
return
}
st, err := db.JobStatus(e.DB, uuid)
if err != nil {
return
}
resp.SetData(&st)
return
}