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table.go
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table.go
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package exec
import (
"fmt"
"io"
"os"
"os/signal"
"strings"
"sync"
"time"
"github.com/theckman/yacspin"
"github.com/alajmo/mani/core"
"github.com/alajmo/mani/core/dao"
)
func (exec *Exec) Table(runFlags *core.RunFlags) dao.TableOutput {
task := exec.Tasks[0]
clients := exec.Clients
projects := exec.Projects
var spinner *yacspin.Spinner
var spinnerErr error
go func() {
if !runFlags.Silent {
time.Sleep(500 * time.Millisecond)
spinner, spinnerErr = initSpinner()
}
}()
// In-case user interrupts, make sure spinner is stopped
go func() {
sigchan := make(chan os.Signal, 1)
signal.Notify(sigchan, os.Interrupt)
<-sigchan
if !runFlags.Silent && spinner != nil && spinnerErr == nil {
_ = spinner.Stop()
}
os.Exit(0)
}()
var data dao.TableOutput
var dataMutex = sync.RWMutex{}
/**
** Headers
**/
data.Headers = append(data.Headers, "project")
// Append Command names if set
for _, subTask := range task.Commands {
if subTask.Name != "" {
data.Headers = append(data.Headers, subTask.Name)
} else {
data.Headers = append(data.Headers, "output")
}
}
// Append Command name if set
if task.Cmd != "" {
if task.Name != "" {
data.Headers = append(data.Headers, task.Name)
} else {
data.Headers = append(data.Headers, "output")
}
}
// Populate the rows (project name is first cell, then commands and cmd output is set to empty string)
for i, p := range projects {
data.Rows = append(data.Rows, dao.Row{Columns: []string{p.Name}})
for range task.Commands {
data.Rows[i].Columns = append(data.Rows[i].Columns, "")
}
if task.Cmd != "" {
data.Rows[i].Columns = append(data.Rows[i].Columns, "")
}
}
wg := core.NewSizedWaitGroup(20)
/**
** Values
**/
for i, c := range clients {
wg.Add()
if task.SpecData.Parallel {
go func(i int, c Client, wg *core.SizedWaitGroup) {
defer wg.Done()
_ = exec.TableWork(i, runFlags.DryRun, data, &dataMutex)
}(i, c, &wg)
} else {
func(i int, c Client, wg *core.SizedWaitGroup) {
defer wg.Done()
_ = exec.TableWork(i, runFlags.DryRun, data, &dataMutex)
}(i, c, &wg)
}
}
wg.Wait()
if !runFlags.Silent && spinner != nil && spinnerErr == nil {
_ = spinner.Stop()
}
return data
}
func (exec *Exec) TableWork(rIndex int, dryRun bool, data dao.TableOutput, dataMutex *sync.RWMutex) error {
client := exec.Clients[rIndex]
task := exec.Tasks[rIndex]
var wg sync.WaitGroup
for j, cmd := range task.Commands {
args := TableCmd{
rIndex: rIndex,
cIndex: j + 1,
client: client,
dryRun: dryRun,
shell: cmd.ShellProgram,
env: cmd.EnvList,
cmd: cmd.Cmd,
cmdArr: cmd.CmdArg,
}
err := RunTableCmd(args, data, dataMutex, &wg)
if err != nil && !task.SpecData.IgnoreErrors {
return err
}
}
if task.Cmd != "" {
args := TableCmd{
rIndex: rIndex,
cIndex: len(task.Commands) + 1,
client: client,
dryRun: dryRun,
shell: task.ShellProgram,
env: task.EnvList,
cmd: task.Cmd,
cmdArr: task.CmdArg,
}
err := RunTableCmd(args, data, dataMutex, &wg)
if err != nil && !task.SpecData.IgnoreErrors {
return err
}
}
wg.Wait()
return nil
}
func RunTableCmd(t TableCmd, data dao.TableOutput, dataMutex *sync.RWMutex, wg *sync.WaitGroup) error {
combinedEnvs := dao.MergeEnvs(t.client.Env, t.env)
if t.dryRun {
data.Rows[t.rIndex].Columns[t.cIndex] = t.cmd
return nil
}
err := t.client.Run(t.shell, combinedEnvs, t.cmdArr)
if err != nil {
return err
}
// Copy over commands STDOUT.
var stdoutHandler = func(client Client) {
defer wg.Done()
dataMutex.Lock()
out, err := io.ReadAll(client.Stdout())
data.Rows[t.rIndex].Columns[t.cIndex] = fmt.Sprintf("%s%s", data.Rows[t.rIndex].Columns[t.cIndex], strings.TrimSuffix(string(out), "\n"))
dataMutex.Unlock()
if err != nil && err != io.EOF {
fmt.Fprintf(os.Stderr, "%v", err)
}
}
wg.Add(1)
go stdoutHandler(t.client)
// Copy over tasks's STDERR.
var stderrHandler = func(client Client) {
defer wg.Done()
dataMutex.Lock()
out, err := io.ReadAll(client.Stderr())
data.Rows[t.rIndex].Columns[t.cIndex] = fmt.Sprintf("%s%s", data.Rows[t.rIndex].Columns[t.cIndex], strings.TrimSuffix(string(out), "\n"))
dataMutex.Unlock()
if err != nil && err != io.EOF {
fmt.Fprintf(os.Stderr, "%v", err)
}
}
wg.Add(1)
go stderrHandler(t.client)
wg.Wait()
if err := t.client.Wait(); err != nil {
data.Rows[t.rIndex].Columns[t.cIndex] = fmt.Sprintf("%s\n%s", data.Rows[t.rIndex].Columns[t.cIndex], err.Error())
return err
}
return nil
}
func initSpinner() (*yacspin.Spinner, error) {
spinner, err := dao.TaskSpinner()
if err != nil {
return &spinner, err
}
err = spinner.Start()
if err != nil {
return &spinner, err
}
spinner.Message(" Running")
return &spinner, nil
}