sgcommand
203e8e3f04
- systemd/generator.go: build .service file content from Unit - systemd/manager.go: install/uninstall/enable/disable/status via systemctl - cmd/install.go: write unit files, --dry-run flag, remove disabled units - cmd/active.go: enable + start units in order - cmd/status.go: summary table with name/runtime/user/enabled/installed/state
106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
package systemd
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import (
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"fmt"
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"strings"
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"text/template"
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"github.com/warkanum/unitdore/config"
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)
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const systemUnitTemplate = `# /etc/systemd/system/{{.ServiceName}}
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# Generated by unitdore — do not edit manually
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[Unit]
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Description=Unitdore: {{.Unit.Name}} ({{.Unit.Runtime}})
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After=network.target
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[Service]
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Type=simple
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ExecStart={{.ExecStart}}
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ExecStop={{.ExecStop}}
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Restart=on-failure
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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`
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const userUnitTemplate = `# ~/.config/systemd/user/{{.ServiceName}}
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# Generated by unitdore — do not edit manually
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[Unit]
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Description=Unitdore: {{.Unit.Name}} ({{.Unit.Runtime}})
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After=default.target
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[Service]
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Type=simple
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ExecStart={{.ExecStart}}
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ExecStop={{.ExecStop}}
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Restart=on-failure
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RestartSec=5
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[Install]
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WantedBy=default.target
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`
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type templateData struct {
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ServiceName string
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Unit config.Unit
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ExecStart string
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ExecStop string
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}
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// ServiceName returns the systemd service name for a unit.
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func ServiceName(u config.Unit) string {
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return fmt.Sprintf("unitdore-%s.service", u.Name)
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}
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// Generate produces the .service file content for a unit.
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func Generate(u config.Unit) (string, error) {
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execStart, execStop := buildExecCommands(u)
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data := templateData{
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ServiceName: ServiceName(u),
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Unit: u,
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ExecStart: execStart,
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ExecStop: execStop,
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}
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tmplStr := systemUnitTemplate
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if u.User != "" {
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tmplStr = userUnitTemplate
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}
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tmpl, err := template.New("unit").Parse(tmplStr)
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if err != nil {
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return "", fmt.Errorf("parsing template: %w", err)
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}
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var buf strings.Builder
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if err := tmpl.Execute(&buf, data); err != nil {
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return "", fmt.Errorf("rendering template: %w", err)
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}
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return buf.String(), nil
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}
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func buildExecCommands(u config.Unit) (start, stop string) {
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// If a custom command is provided, use it directly
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if u.Command != "" {
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return u.Command, ""
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}
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switch u.Runtime {
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case "podman":
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start = fmt.Sprintf("/usr/bin/podman start -a %s", u.Name)
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stop = fmt.Sprintf("/usr/bin/podman stop %s", u.Name)
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case "docker":
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start = fmt.Sprintf("/usr/bin/docker start %s", u.Name)
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stop = fmt.Sprintf("/usr/bin/docker stop %s", u.Name)
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default:
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start = fmt.Sprintf("/usr/bin/%s start %s", u.Runtime, u.Name)
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stop = fmt.Sprintf("/usr/bin/%s stop %s", u.Runtime, u.Name)
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}
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return start, stop
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}
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