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auto-dark-light@gihaume: Version 1.2.0 (#6521)
* Add commands launching
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4 changes: 4 additions & 0 deletions
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...rk-light@gihaume/files/auto-dark-light@gihaume/lib/CLASSES HIERARCHY.drawio.svg
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47 changes: 47 additions & 0 deletions
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auto-dark-light@gihaume/files/auto-dark-light@gihaume/lib/commands_launcher.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| const launch_command = require('./lib/launch_command.js'); | ||
| const { _ } = require('./lib/translator.js'); | ||
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| const {Gio, GLib} = imports.gi; | ||
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| class Commands_launcher { | ||
| #callback_for_errors; | ||
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| /** | ||
| * @param {Settings.XletSettingsBase} settings - The settings of the desk/applet. | ||
| * @param {object} key_of_list - The keys of the settings' commands list. | ||
| * @param {function(string): void} callback_for_errors - The callback with a message for when an error occurs. | ||
| */ | ||
| constructor(settings, key_of_list, callback_for_errors) { | ||
| settings.bindWithObject(this, key_of_list, "list"); | ||
| this.#callback_for_errors = callback_for_errors; | ||
| } | ||
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| async launch_commands() { | ||
| for (const item of this.list) { | ||
| const { name, active, expiry, command } = item; | ||
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| if (!active) | ||
| continue; | ||
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| try { await launch_command(command, expiry); } | ||
| catch (error) { | ||
| let msg = `${_("the command")} '${name}' ${_("failed")}`; | ||
| if (error instanceof GLib.ShellError) | ||
| msg += ` ${_("due to a wrong format")}${_(":")} ${error.message}`; | ||
| else | ||
| if (error instanceof Gio.IOErrorEnum) { | ||
| if (error.code === Gio.IOErrorEnum.TIMED_OUT) | ||
| msg += ` ${_("due to time expiration")}`; | ||
| else | ||
| if (error.code === Gio.IOErrorEnum.FAILED) | ||
| msg += ` ${_("with the following errors")}${_(":")} ${error.message}` | ||
| } else | ||
| msg += `${_(":")} ${error}` // full `error` object so we may see the stack trace | ||
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| this.#callback_for_errors(msg); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| module.exports = Commands_launcher; |
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auto-dark-light@gihaume/files/auto-dark-light@gihaume/lib/launch_command.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| const {Gio, GLib} = imports.gi; | ||
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| Gio._promisify(Gio.Subprocess.prototype, 'communicate_utf8_async'); | ||
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| /** | ||
| * Executes a command with a timeout and transmits any error on failure. | ||
| * | ||
| * @async | ||
| * @param {string} command - The shell command to execute. | ||
| * @param {number} [timeout_seconds=10] - The delay in seconds before cancelling the command. `0` means infinity/never. | ||
| * @returns {Promise<void>} | ||
| * @throws {GLib.ShellError} - If the command format is invalid. | ||
| * @throws {Gio.IOErrorEnum.TIMED_OUT} - If the command is cancelled due to a timeout. | ||
| * @throws {Gio.IOErrorEnum.FAILED} - If the command fails with a non-zero exit code. The error message is the `stderr` output if any, otherwise the exit status. | ||
| */ | ||
| async function launch_command(command, timeout_seconds = 10) { | ||
| const [_ok, argvp] = GLib.shell_parse_argv(command); // can throw GLib.ShellError | ||
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| const proc = new Gio.Subprocess({ | ||
| argv: argvp, | ||
| flags: Gio.SubprocessFlags.STDERR_PIPE | ||
| }); | ||
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| const cancellable = Gio.Cancellable.new(); | ||
| const cancellable_signal_handler_id = cancellable.connect( | ||
| () => proc.force_exit() | ||
| ); | ||
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| proc.init(cancellable); | ||
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| let timeout_event_source_id; | ||
| if (timeout_seconds !== 0) | ||
| timeout_event_source_id = GLib.timeout_add_seconds( | ||
| GLib.PRIORITY_DEFAULT, | ||
| timeout_seconds, | ||
| () => { | ||
| cancellable.cancel(); | ||
| timeout_event_source_id = undefined; | ||
| } | ||
| ); | ||
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| try { | ||
| const [_stdout, stderr] = await proc.communicate_utf8_async(null, null); | ||
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| if (cancellable.is_cancelled()) | ||
| throw new Gio.IOErrorEnum({ | ||
| code: Gio.IOErrorEnum.TIMED_OUT, | ||
| message: "timed out" | ||
| }); | ||
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| const exit_status = proc.get_exit_status(); | ||
| if (exit_status !== 0) { | ||
| throw new Gio.IOErrorEnum({ | ||
| code: Gio.IOErrorEnum.FAILED, | ||
| message: stderr ? stderr.trim() : "exit status: " + exit_status | ||
| }); | ||
| } | ||
| } finally { | ||
| cancellable.disconnect(cancellable_signal_handler_id); | ||
| if (timeout_event_source_id) | ||
| GLib.source_remove(timeout_event_source_id); | ||
| } | ||
| } | ||
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| module.exports = launch_command; | ||
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| // // Example usage: | ||
| // | ||
| // async function main() { | ||
| // console.error("start"); | ||
| // try { | ||
| // await launch_command('./test', 5); | ||
| // } catch (error) { | ||
| // if (error instanceof GLib.ShellError) | ||
| // console.error("command format: " + error.message); | ||
| // else | ||
| // if (error instanceof Gio.IOErrorEnum) { | ||
| // if (error.code === Gio.IOErrorEnum.TIMED_OUT) | ||
| // console.error("command aborted due to time out"); | ||
| // else | ||
| // if (error.code === Gio.IOErrorEnum.FAILED) | ||
| // console.error("command failed: " + error.message); | ||
| // } else | ||
| // console.error(error); // full object so we can see the stack trace | ||
| // } | ||
| // } | ||
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| // main(); | ||
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| // new GLib.MainLoop(null, false).run(); |
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