Files

202 lines
8.9 KiB
Swift

import ArgumentParser
import Foundation
import RunnerCore
import RunnerHost
/// `gitea-macos-runner service …` — manage the `launchd` LaunchAgent.
///
/// - Important: This installs a **LaunchAgent** in the logged-in user's session,
/// never a LaunchDaemon. Virtualization needs a GUI session, and macOS 15+
/// additionally needs an unlocked `login.keychain` to start a VM — neither of
/// which exists in the system context. The host should be set to log in
/// automatically.
struct ServiceCommand: AsyncParsableCommand {
static let configuration = CommandConfiguration(
commandName: "service",
abstract: "Install, remove, or inspect the launchd LaunchAgent.",
subcommands: [Install.self, Uninstall.self, Status.self]
)
/// `service install` — write the plist and load the job.
struct Install: AsyncParsableCommand {
static let configuration = CommandConfiguration(
commandName: "install",
abstract: "Write ~/Library/LaunchAgents/\(LaunchdService.label).plist and load it.",
discussion: """
Points the agent at the installed, signed .app bundle — not at a bare \
binary. The com.apple.security.virtualization entitlement only survives \
on the signed bundle, so a daemon started from .build/ cannot start VMs.
"""
)
@OptionGroup var options: GlobalOptions
/// Path to the installed executable inside the signed `.app`.
@Option(name: .long, help: "Path to the installed executable (default: ~/Applications/GiteaMacosRunner.app/Contents/MacOS/gitea-macos-runner).")
var executable: String?
/// How to configure Local Network access, if it is not already.
///
/// Unset means "decide at run time": ask on a terminal, skip with a
/// pointer otherwise. `none` suppresses the question outright, for a
/// scripted install that has its own arrangements.
@Option(
name: .customLong("grant-local-network"),
help: "Configure macOS Local Network access during install: allowlist, prompt, or none.")
var grantLocalNetwork: LocalNetworkGrantChoice?
func run() async throws {
let executablePath = executable ?? LaunchdService.defaultExecutablePath
// Only pass --config when it is not the default; a plist that
// hard-codes the default path is one more thing to keep in sync.
let configPath = options.configPath == RunnerConfig.defaultPath ? nil : options.configPath
if (try? options.loadConfig()) == nil {
CLI.note("warning: \(RunnerConfig.expandTilde(options.configPath)) is missing or invalid; the agent will fail to start until it is fixed")
}
// Done before install (which also does it) purely so the operator
// is told: an agent silently vanishing from launchctl is alarming
// if you do not know a rename happened.
for legacy in LaunchdService.removeLegacyAgents() {
CLI.note("removed legacy agent \(legacy) (renamed to \(LaunchdService.label))")
}
try LaunchdService.install(executablePath: executablePath, configPath: configPath)
print("installed \(LaunchdService.agentPlistURL.path)")
print("program: \(RunnerConfig.expandTilde(executablePath)) daemon")
print("logs: \(LaunchdService.logDirectoryURL.path)")
print("")
offerLocalNetworkGrant()
print("check it with: gitea-macos-runner service status")
}
/// Offers to configure Local Network access, if it is not already.
///
/// This is where the question belongs. The agent that was just
/// installed is the process that will be blocked, it has no UI to ask
/// with, and the symptom when it is blocked — every guest boots, no job
/// starts, `No route to host` — points nowhere near the cause. Asking
/// now costs one prompt; not asking costs a debugging session.
///
/// Never fatal: a failed or declined grant leaves a perfectly good
/// installed agent, so this reports and returns rather than throwing.
private func offerLocalNetworkGrant() {
guard grantLocalNetwork != .skip else { return }
guard !LocalNetworkPolicy.status().coversGuestRange else { return }
let method: LocalNetworkPermission.Method
switch grantLocalNetwork {
case .allowlist: method = .allowlist
case .prompt: method = .prompt
case .skip: return // handled above; here for exhaustiveness
case nil:
// Not asked for either way: decide from the terminal. A piped
// or launchd-driven install must not stop on a question, so it
// gets the pointer and carries on.
guard isatty(fileno(stdin)) == 1 else {
CLI.note("""
note: macOS Local Network access is not configured. Until it is, guests \
boot but SSH fails with "No route to host". Configure it with \
`gitea-macos-runner permissions grant`.
""")
print("")
return
}
CLI.note("""
macOS Local Network access is not configured. Without it the agent starts \
guests fine but cannot reach them, and every job fails with "No route to \
host". Granting it writes a subnet allowlist with sudo and needs a reboot.
""")
guard CLI.confirm("configure it now?") else {
CLI.note("skipped; run `gitea-macos-runner permissions grant` later")
print("")
return
}
method = .allowlist
}
// Deliberately swallowed. The agent is installed and correct at
// this point; a declined sudo password should not turn a successful
// install into a failure.
do {
try LocalNetworkGrantFlow.run(method: method)
} catch {
CLI.note("could not configure it: \(error)")
CLI.note("the agent is installed; run `gitea-macos-runner permissions grant` to retry")
}
print("")
}
}
/// `--grant-local-network`'s values: the two grant methods plus an explicit
/// opt-out, which the method enum itself has no business carrying.
///
/// The opt-out case is spelled `skip` rather than `none` so that
/// `choice == .skip` cannot be read as `Optional.none` — the option is
/// itself optional, and "not passed" means something different from
/// "passed `none`".
enum LocalNetworkGrantChoice: String, ExpressibleByArgument, CaseIterable {
case allowlist
case prompt
case skip = "none"
}
/// `service uninstall` — unload and remove the plist.
struct Uninstall: AsyncParsableCommand {
static let configuration = CommandConfiguration(
commandName: "uninstall",
abstract: "Unload the LaunchAgent and remove its plist."
)
@OptionGroup var options: GlobalOptions
func run() async throws {
let path = LaunchdService.agentPlistURL.path
let existed = FileManager.default.fileExists(atPath: path)
let legacy = LaunchdService.removeLegacyAgents()
try LaunchdService.uninstall()
for label in legacy {
print("removed legacy agent \(label)")
}
print(existed ? "removed \(path)" : "not installed (\(path))")
}
}
/// `service status` — report whether the agent is installed and running.
struct Status: AsyncParsableCommand {
static let configuration = CommandConfiguration(
commandName: "status",
abstract: "Report LaunchAgent installation and run state."
)
@OptionGroup var options: GlobalOptions
func run() async throws {
let status = try LaunchdService.status()
print("label: \(LaunchdService.label)")
print("plist: \(status.plistPath)")
print("installed: \(status.installed ? "yes" : "no")")
print("loaded: \(status.loaded ? "yes" : "no")")
if let pid = status.pid {
print("pid: \(pid)")
}
if let lastExitStatus = status.lastExitStatus {
print("last exit: \(lastExitStatus)")
}
print("logs: \(LaunchdService.logDirectoryURL.path)")
if status.installed, !status.loaded {
print("")
CLI.note("installed but not loaded — reinstall with `service install`, or check the logs above")
throw ExitCode(1)
}
}
}
}