Flesh out batch jobs (df1980eb) · Commits · Personal Projects / bulletin

batch/batch.go

0 → 100644

+42 −0

Original line number	Diff line number	Diff line
		// Package batch contains the non-interactive maintenence commands.
		package batch

		import (
		_ "embed"
		"fmt"
		"os"
		"strings"
		"text/template"
		)

		//go:embed crontab
		var crontabTemplate string

		// Reboot deletes all messages with `shutdown` set.
		func Reboot() int {
		fmt.Println("TODO: Delete messages with shutdown != 0.")
		return 0
		}

		// Expire deletes all messages that have hit their expiration date.
		func Expire() int {
		fmt.Println("TODO: expire messages.")
		return 0
		}

		// Install is an interactive command used to install the crontab.
		func Install() int {
		bulletin, err := os.Executable()
		if err != nil {
		panic(err) // TODO: cleanup error handling.
		}
		crontab := &strings.Builder{}
		template.Must(template.New("crontab").Parse(crontabTemplate)).
		Execute(crontab, map[string]string{"Bulletin": bulletin})
		fmt.Printf("Add this to crontab:\n\n%s\n", crontab.String())

		fmt.Println("TODO: Finish installing bulletin.")
		// TODO: Offer to add ssh key for system user.
		// TODO: Offer to add ssh key for other user(s).
		return 0
		}

0 → 100644

+2 −0

Original line number	Diff line number	Diff line
		@reboot {{ .Bulletin }} -u SYSTEM -b reboot
		@daily {{ .Bulletin }} -u SYSTEM -b expire

+2 −2

Original line number	Diff line number	Diff line
		@@ -6,8 +6,10 @@ require (
		github.com/adrg/xdg v0.5.3
		github.com/chzyer/readline v1.5.1
		github.com/davecgh/go-spew v1.1.1
		github.com/gdamore/tcell/v2 v2.7.1
		github.com/golang-migrate/migrate/v4 v4.18.3
		github.com/jmoiron/sqlx v1.4.0
		github.com/rivo/tview v0.0.0-20250501113434-0c592cd31026
		github.com/urfave/cli/v3 v3.3.2
		modernc.org/sqlite v1.37.0
		)
		@@ -15,7 +17,6 @@ require (
		require (
		github.com/dustin/go-humanize v1.0.1 // indirect
		github.com/gdamore/encoding v1.0.0 // indirect
		github.com/gdamore/tcell/v2 v2.7.1 // indirect
		github.com/golang-migrate/migrate v3.5.4+incompatible // indirect
		github.com/google/uuid v1.6.0 // indirect
		github.com/hashicorp/errwrap v1.1.0 // indirect
		@@ -26,7 +27,6 @@ require (
		github.com/mitchellh/go-wordwrap v1.0.1 // indirect
		github.com/ncruces/go-strftime v0.1.9 // indirect
		github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
		github.com/rivo/tview v0.0.0-20250501113434-0c592cd31026 // indirect
		github.com/rivo/uniseg v0.4.7 // indirect
		go.uber.org/atomic v1.11.0 // indirect
		golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 // indirect

+14 −6

Original line number	Diff line number	Diff line
		@@ -8,6 +8,7 @@ import (
		"os"

		"git.lyda.ie/kevin/bulletin/accounts"
		"git.lyda.ie/kevin/bulletin/batch"
		"git.lyda.ie/kevin/bulletin/repl"

		"github.com/urfave/cli/v3"
		@@ -33,19 +34,26 @@ func main() {
		},
		Action: func(_ context.Context, cmd *cli.Command) error {
		user := cmd.String("user")
		batch := cmd.String("batch")
		batchFlag := cmd.String("batch")

		if batch != "" {
		if batchFlag != "" {
		if user != "SYSTEM" {
		fmt.Println("ERROR: can only run batch commands as SYSTEM.")
		os.Exit(1)
		}
		err := accounts.Open(user)
		if err != nil {
		fmt.Printf("ERROR: %s.", err)
		os.Exit(1)
		}
		exitcode := 0
		switch batch {
		case "after-boot":
		fmt.Println("TODO: Delete messages with shutdown != 0.")
		switch batchFlag {
		case "reboot":
		exitcode = batch.Reboot()
		case "expire":
		fmt.Println("TODO: expire messages.")
		exitcode = batch.Expire()
		case "install":
		exitcode = batch.Install()
		default:
		fmt.Println("ERROR: can only run batch commands as SYSTEM.")
		exitcode = 1