Launch Codes (mark.nixon) Mac OS

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Wikipedia defines launchd as 'a unified, open-source service management framework for starting, stopping and managing daemons, applications, processes, and scripts. Written and designed by Dave Zarzycki at Apple, it was introduced with Mac OS X Tiger and is licensed under the Apache License.'

A daemon is a program running in the background without requiring user input. A typical daemon might for instance perform daily maintenance tasks or scan a device for malware when it is connected.

launchd differentiates between agents and daemons. The main difference is that an agent is run on behalf of the logged in user while a daemon runs on behalf of the root user or any user you specify with the UserName key.

Open the Command Palette (Cmd+Shift+P) and type 'shell command' to find the Shell Command: Install 'code' command in PATH command. Restart the terminal for the new $PATH value to take effect. You'll be able to type 'code.' In any folder to start editing files in that folder. Open Visual Studio Code and press Command + Shift + P or F1 then type Shell in command palette now you are able to find this option like Shell Command: Install code in PATH from suggested list in command palette. LaunchCodes restores the creator code functionality that Apple dropped with OS X 10.6. With LaunchCodes, Snow Leopard users can once again double-click on files and have them open in the application that created them, rather than a default application determined by the file extension. Origin should show you the code before you install, or you can find it by right-clicking on the TS3 icon in your game library and selecting Game Properties. Please also make sure that you're using the key that is being requested. In addition to the base game, each pack has its own code, and perhaps it's one of those codes that's being requested.

The behavior of a daemon/agent is specified in a special XML file called a property list. Depending on where it is stored it will be treated as a daemon or an agent.

Job definitions crucial for the operation of the operating system are stored below /System/Library. You should never need to create a daemon or agent in these directories. Third-Party definitions which are relevant for every user are stored below /Library. Job definitions for a specific user are stored below the respective user's Library directory.

Type	Location	Run on behalf of
User Agents	~/Library/LaunchAgents	Currently logged in user
Global Agents	/Library/LaunchAgents	Currently logged in user
Global Daemons	/Library/LaunchDaemons	root or the user specified with the key UserName
System Agents	/System/Library/LaunchAgents	Currently logged in user
System Daemons	/System/Library/LaunchDaemons	root or the user specified with the key UserName

The ~ character stands for the users home directory.

The following example shows a complete job definition with only three keys:

Label This key is required for every job definition. It identifies the job and has to be unique for the launchd instance. Theoretically it is possible for an agent to have the same label as a daemon, as daemons are loaded by the root launchd whereas agents are loaded by a user launchd, but it is not recommended.
Program This key defines what to start, in this case a shell script /Users/Me/Scripts/cleanup.sh.
RunAtLoad This is one of several optional keys specifying when the job should be run, in this case right after it has been loaded.

<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE plist PUBLIC '-//Apple//DTD PLIST 1.0//EN' 'http://www.apple.com/DTDs/PropertyList-1.0.dtd'><plist version='1.0'> <dict> <key>Label</key> <string>com.example.app</string> <key>Program</key> <string>/Users/Me/Scripts/cleanup.sh</string> <key>RunAtLoad</key> <true/> </dict></plist>

launchd supports more than 36 different configuration keys. Most of them are explained in the Configuration-Section of this primer.

Upon system start the root launchd process will scan the daemon directories /System/Library/LaunchDaemons and /Library/LaunchDaemons for job definitions and load them depending on the existence/value of the Disabled key and the contents of the override database.

When a user logs in a new launchd process will be started for this user. This launchd process will scan the agent directories /System/Library/LaunchAgents, /Library/LaunchAgents and ~/Library/LaunchAgents for job definitions and load them depending on the existence/value of the Disabled key and the contents of the override database.

Loading a job definition does not necessarily mean to start the job. When a job is started is determined by the job definition. In fact, only when RunAtLoad or KeepAlive have been specified,launchd will start the job unconditionally when it has been loaded.

Installation

Download Visual Studio Code for macOS.
Open the browser's download list and locate the downloaded archive.
Select the 'magnifying glass' icon to open the archive in Finder.
Drag Visual Studio Code.app to the Applications folder, making it available in the macOS Launchpad.
Add VS Code to your Dock by right-clicking on the icon to bring up the context menu and choosing Options, Keep in Dock.

Launching from the command line

You can also run VS Code from the terminal by typing 'code' after adding it to the path:

Launch VS Code.
Open the Command Palette (Cmd+Shift+P) and type 'shell command' to find the Shell Command: Install 'code' command in PATH command.

Restart the terminal for the new $PATH value to take effect. You'll be able to type 'code .' in any folder to start editing files in that folder.

Note: If you still have the old code alias in your .bash_profile (or equivalent) from an early VS Code version, remove it and replace it by executing the Shell Command: Install 'code' command in PATH command.

Alternative manual instructions

Instead of running the command above, you can manually add VS Code to your path, to do so run the following commands:

Start a new terminal to pick up your .bash_profile changes.

Note: The leading slash is required to prevent $PATH from expanding during the concatenation. Remove the leading slash if you want to run the export command directly in a terminal.

Note: Since zsh became the default shell in macOS Catalina, run the following commands to add VS Code to your path:

Touch Bar support

Out of the box VS Code adds actions to navigate in editor history as well as the full Debug tool bar to control the debugger on your Touch Bar:

Mojave privacy protections

After upgrading to macOS Mojave version, you may see dialogs saying 'Visual Studio Code would like to access your {calendar/contacts/photos}.' This is due to the new privacy protections in Mojave and is not specific to VS Code. The same dialogs may be displayed when running other applications as well. The dialog is shown once for each type of personal data and it is fine to choose Don't Allow since VS Code does not need access to those folders. You can read a more detailed explanation in this blog post.

Updates

VS Code ships monthly releases and supports auto-update when a new release is available. If you're prompted by VS Code, accept the newest update and it will get installed (you won't need to do anything else to get the latest bits).

Note: You can disable auto-update if you prefer to update VS Code on your own schedule.

Preferences menu

You can configure VS Code through settings, color themes, and custom keybindings available through the Code > Preferences menu group.

You may see mention of File > Preferences in documentation, which is the Preferences menu group location on Windows and Linux. On a macOS, the Preferences menu group is under Code, not File.

Next steps

Once you have installed VS Code, these topics will help you learn more about VS Code:

Additional Components - Learn how to install Git, Node.js, TypeScript, and tools like Yeoman.
User Interface - A quick orientation around VS Code.
User/Workspace Settings - Learn how to configure VS Code to your preferences settings.

Common questions

Why do I see 'Visual Studio Code would like access to your calendar.'

If you are running macOS Mojave version, you may see dialogs saying 'Visual Studio Code would like to access your {calendar/contacts/photos}.' This is due to the new privacy protections in Mojave discussed above. It is fine to choose Don't Allow since VS Code does not need access to those folders.