terminal/README.md

# Welcome to the Windows Terminal, Console and Command-Line repo

This repository contains the source code for:

* [Windows Terminal](https://aka.ms/terminal)
* [Windows Terminal Preview](https://aka.ms/terminal-preview)
* The Windows console host (`conhost.exe`)
* Components shared between the two projects
* [ColorTool](https://github.com/microsoft/terminal/tree/main/src/tools/ColorTool)
* [Sample projects](https://github.com/microsoft/terminal/tree/main/samples)
  that show how to consume the Windows Console APIs

Related repositories include:

* [Windows Terminal Documentation](https://docs.microsoft.com/windows/terminal)
  ([Repo: Contribute to the docs](https://github.com/MicrosoftDocs/terminal))
* [Console API Documentation](https://github.com/MicrosoftDocs/Console-Docs)
* [Cascadia Code Font](https://github.com/Microsoft/Cascadia-Code)

## Installing and running Windows Terminal

> 🔴 Note: Windows Terminal requires Windows 10 1903 (build 18362) or later

### Microsoft Store [Recommended]

Install the [Windows Terminal from the Microsoft Store][store-install-link].
This allows you to always be on the latest version when we release new builds
with automatic upgrades.

This is our preferred method.

### Other install methods

#### Via GitHub

For users who are unable to install Windows Terminal from the Microsoft Store,
released builds can be manually downloaded from this repository's [Releases
page](https://github.com/microsoft/terminal/releases).

Download the `Microsoft.WindowsTerminal_<versionNumber>.msixbundle` file from
the **Assets** section. To install the app, you can simply double-click on the
`.msixbundle` file, and the app installer should automatically run. If that
fails for any reason, you can try the following command at a PowerShell prompt:

```powershell
# NOTE: If you are using PowerShell 7+, please run
# Import-Module Appx -UseWindowsPowerShell
# before using Add-AppxPackage.

Add-AppxPackage Microsoft.WindowsTerminal_<versionNumber>.msixbundle
```

> 🔴 Note: If you install Terminal manually:
>
> * Terminal will not auto-update when new builds are released so you will need
>   to regularly install the latest Terminal release to receive all the latest
>   fixes and improvements!

#### Via Windows Package Manager CLI (aka winget)

[winget](https://github.com/microsoft/winget-cli) users can download and install
the latest Terminal release by installing the `Microsoft.WindowsTerminal`
package:

```powershell
winget install --id=Microsoft.WindowsTerminal -e
```

#### Via Chocolatey (unofficial)

[Chocolatey](https://chocolatey.org) users can download and install the latest
Terminal release by installing the `microsoft-windows-terminal` package:

```powershell
choco install microsoft-windows-terminal
```

To upgrade Windows Terminal using Chocolatey, run the following:

```powershell
choco upgrade microsoft-windows-terminal
```

If you have any issues when installing/upgrading the package please go to the
[Windows Terminal package
page](https://chocolatey.org/packages/microsoft-windows-terminal) and follow the
[Chocolatey triage process](https://chocolatey.org/docs/package-triage-process)

#### Via Scoop (unofficial)

[Scoop](https://scoop.sh) users can download and install the latest Terminal
release by installing the `windows-terminal` package:

```powershell
scoop bucket add extras
scoop install windows-terminal
```

To update Windows Terminal using Scoop, run the following:

```powershell
scoop update windows-terminal
```

If you have any issues when installing/updating the package, please search for
or report the same on the [issues
page](https://github.com/lukesampson/scoop-extras/issues) of Scoop Extras bucket
repository.

---

## Windows Terminal 2.0 Roadmap

The plan for delivering Windows Terminal 2.0 [is described
here](/doc/terminal-v2-roadmap.md) and will be updated as the project proceeds.

## Project Build Status

Project|Build Status
---|---
Terminal|[![Terminal Build Status](https://dev.azure.com/ms/terminal/_apis/build/status/terminal%20CI?branchName=main)](https://dev.azure.com/ms/terminal/_build?definitionId=136)
ColorTool|![Colortool Build Status](https://microsoft.visualstudio.com/_apis/public/build/definitions/c93e867a-8815-43c1-92c4-e7dd5404f1e1/17023/badge)

---

## Terminal & Console Overview

Please take a few minutes to review the overview below before diving into the
code:

### Windows Terminal

Windows Terminal is a new, modern, feature-rich, productive terminal application
for command-line users. It includes many of the features most frequently
requested by the Windows command-line community including support for tabs, rich
text, globalization, configurability, theming & styling, and more.

The Terminal will also need to meet our goals and measures to ensure it remains
fast and efficient, and doesn't consume vast amounts of memory or power.

### The Windows Console Host

The Windows Console host, `conhost.exe`, is Windows' original command-line user
experience. It also hosts Windows' command-line infrastructure and the Windows
Console API server, input engine, rendering engine, user preferences, etc. The
console host code in this repository is the actual source from which the
`conhost.exe` in Windows itself is built.

Since taking ownership of the Windows command-line in 2014, the team added
several new features to the Console, including background transparency,
line-based selection, support for [ANSI / Virtual Terminal
sequences](https://en.wikipedia.org/wiki/ANSI_escape_code), [24-bit
color](https://devblogs.microsoft.com/commandline/24-bit-color-in-the-windows-console/),
a [Pseudoconsole
("ConPTY")](https://devblogs.microsoft.com/commandline/windows-command-line-introducing-the-windows-pseudo-console-conpty/),
and more.

However, because Windows Console's primary goal is to maintain backward
compatibility, we have been unable to add many of the features the community
(and the team) have been wanting for the last several years including tabs,
unicode text, and emoji.

These limitations led us to create the new Windows Terminal.

> You can read more about the evolution of the command-line in general, and the
> Windows command-line specifically in [this accompanying series of blog
> posts](https://devblogs.microsoft.com/commandline/windows-command-line-backgrounder/)
> on the Command-Line team's blog.

### Shared Components

While overhauling Windows Console, we modernized its codebase considerably,
cleanly separating logical entities into modules and classes, introduced some
key extensibility points, replaced several old, home-grown collections and
containers with safer, more efficient [STL
containers](https://docs.microsoft.com/en-us/cpp/standard-library/stl-containers?view=vs-2019),
and made the code simpler and safer by using Microsoft's [Windows Implementation
Libraries - WIL](https://github.com/Microsoft/wil).

This overhaul resulted in several of Console's key components being available
for re-use in any terminal implementation on Windows. These components include a
new DirectWrite-based text layout and rendering engine, a text buffer capable of
storing both UTF-16 and UTF-8, a VT parser/emitter, and more.

### Creating the new Windows Terminal

When we started planning the new Windows Terminal application, we explored and
evaluated several approaches and technology stacks. We ultimately decided that
our goals would be best met by continuing our investment in our C++ codebase,
which would allow us to reuse several of the aforementioned modernized
components in both the existing Console and the new Terminal. Further, we
realized that this would allow us to build much of the Terminal's core itself as
a reusable UI control that others can incorporate into their own applications.

The result of this work is contained within this repo and delivered as the
Windows Terminal application you can download from the Microsoft Store, or
[directly from this repo's
releases](https://github.com/microsoft/terminal/releases).

---

## Resources

For more information about Windows Terminal, you may find some of these
resources useful and interesting:

* [Command-Line Blog](https://devblogs.microsoft.com/commandline)
* [Command-Line Backgrounder Blog
  Series](https://devblogs.microsoft.com/commandline/windows-command-line-backgrounder/)
* Windows Terminal Launch: [Terminal "Sizzle
  Video"](https://www.youtube.com/watch?v=8gw0rXPMMPE&list=PLEHMQNlPj-Jzh9DkNpqipDGCZZuOwrQwR&index=2&t=0s)
* Windows Terminal Launch: [Build 2019
  Session](https://www.youtube.com/watch?v=KMudkRcwjCw)
* Run As Radio: [Show 645 - Windows Terminal with Richard
  Turner](http://www.runasradio.com/Shows/Show/645)
* Azure Devops Podcast: [Episode 54 - Kayla Cinnamon and Rich Turner on DevOps
  on the Windows
  Terminal](http://azuredevopspodcast.clear-measure.com/kayla-cinnamon-and-rich-turner-on-devops-on-the-windows-terminal-team-episode-54)
* Microsoft Ignite 2019 Session: [The Modern Windows Command Line: Windows
  Terminal -
  BRK3321](https://myignite.techcommunity.microsoft.com/sessions/81329?source=sessions)

---

## FAQ

### I built and ran the new Terminal, but it looks just like the old console

Cause: You're launching the incorrect solution in Visual Studio.

Solution: Make sure you're building & deploying the `CascadiaPackage` project in
Visual Studio.

> ⚠ Note: `OpenConsole.exe` is just a locally-built `conhost.exe`, the classic
> Windows Console that hosts Windows' command-line infrastructure. OpenConsole
> is used by Windows Terminal to connect to and communicate with command-line
> applications (via
> [ConPty](https://devblogs.microsoft.com/commandline/windows-command-line-introducing-the-windows-pseudo-console-conpty/)).

---

## Documentation

All project documentation is located at [aka.ms/terminal-docs](https://aka.ms/terminal-docs). If you would like
to contribute to the documentation, please submit a pull request on the [Windows
Terminal Documentation repo](https://github.com/MicrosoftDocs/terminal).

---

## Contributing

We are excited to work alongside you, our amazing community, to build and
enhance Windows Terminal\!

***BEFORE you start work on a feature/fix***, please read & follow our
[Contributor's
Guide](https://github.com/microsoft/terminal/blob/main/CONTRIBUTING.md) to
help avoid any wasted or duplicate effort.

## Communicating with the Team

The easiest way to communicate with the team is via GitHub issues.

Please file new issues, feature requests and suggestions, but **DO search for
similar open/closed pre-existing issues before creating a new issue.**

If you would like to ask a question that you feel doesn't warrant an issue
(yet), please reach out to us via Twitter:

* Kayla Cinnamon, Program Manager:
  [@cinnamon\_msft](https://twitter.com/cinnamon_msft)
* Dustin Howett, Engineering Lead: [@dhowett](https://twitter.com/DHowett)
* Michael Niksa, Senior Developer:
  [@michaelniksa](https://twitter.com/MichaelNiksa)
* Mike Griese, Developer: [@zadjii](https://twitter.com/zadjii)
* Carlos Zamora, Developer: [@cazamor_msft](https://twitter.com/cazamor_msft)
* Leon Liang, Developer: [@leonmsft](https://twitter.com/leonmsft)
* Pankaj Bhojwani, Developer
* Leonard Hecker, Developer: [@LeonardHecker](https://twitter.com/LeonardHecker)

## Developer Guidance

## Prerequisites

* You must be running Windows 1903 (build >= 10.0.18362.0) or later to run
  Windows Terminal
* You must [enable Developer Mode in the Windows Settings
  app](https://docs.microsoft.com/en-us/windows/uwp/get-started/enable-your-device-for-development)
  to locally install and run Windows Terminal
* You must have the [Windows 10 1903
  SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk)
  installed
* You must have at least [VS
  2019](https://visualstudio.microsoft.com/downloads/) installed
* You must install the following Workloads via the VS Installer. Note: Opening
  the solution in VS 2019 will [prompt you to install missing components
  automatically](https://devblogs.microsoft.com/setup/configure-visual-studio-across-your-organization-with-vsconfig/):
  * Desktop Development with C++
  * Universal Windows Platform Development
  * **The following Individual Components**
    * C++ (v142) Universal Windows Platform Tools

## Building the Code

This repository uses [git
submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules) for some of its
dependencies. To make sure submodules are restored or updated, be sure to run
the following prior to building:

```shell
git submodule update --init --recursive
```

OpenConsole.sln may be built from within Visual Studio or from the command-line
using a set of convenience scripts & tools in the **/tools** directory:

### Building in PowerShell

```powershell
Import-Module .\tools\OpenConsole.psm1
Set-MsBuildDevEnvironment
Invoke-OpenConsoleBuild
```

### Building in Cmd

```shell
.\tools\razzle.cmd
bcz
```

## Running & Debugging

To debug the Windows Terminal in VS, right click on `CascadiaPackage` (in the
Solution Explorer) and go to properties. In the Debug menu, change "Application
process" and "Background task process" to "Native Only".

You should then be able to build & debug the Terminal project by hitting
<kbd>F5</kbd>.

> 👉 You will _not_ be able to launch the Terminal directly by running the
> WindowsTerminal.exe. For more details on why, see
> [#926](https://github.com/microsoft/terminal/issues/926),
> [#4043](https://github.com/microsoft/terminal/issues/4043)

### Coding Guidance

Please review these brief docs below about our coding practices.

> 👉 If you find something missing from these docs, feel free to contribute to
> any of our documentation files anywhere in the repository (or write some new
> ones!)

This is a work in progress as we learn what we'll need to provide people in
order to be effective contributors to our project.

* [Coding Style](https://github.com/microsoft/terminal/blob/main/doc/STYLE.md)
* [Code Organization](https://github.com/microsoft/terminal/blob/main/doc/ORGANIZATION.md)
* [Exceptions in our legacy codebase](https://github.com/microsoft/terminal/blob/main/doc/EXCEPTIONS.md)
* [Helpful smart pointers and macros for interfacing with Windows in WIL](https://github.com/microsoft/terminal/blob/main/doc/WIL.md)

---

## Code of Conduct

This project has adopted the [Microsoft Open Source Code of
Conduct][conduct-code]. For more information see the [Code of Conduct
FAQ][conduct-FAQ] or contact [opencode@microsoft.com][conduct-email] with any
additional questions or comments.

[conduct-code]: https://opensource.microsoft.com/codeofconduct/
[conduct-FAQ]: https://opensource.microsoft.com/codeofconduct/faq/
[conduct-email]: mailto:opencode@microsoft.com
[store-install-link]: https://aka.ms/terminal