# Windows Build Setup

## Install Prereqs

### Go
- [go for windows](https://golang.org/dl)
- Environment: `set GOPATH=C:\work`

### Git

- [git for windows](https://git-scm.com/downloads)
  - Select "Use Git and optional Unix tools from the Command Prompt" (so scripts with `rm` will work)
  - Checkout as-is, conmmit Unix style line endings
  - Use Windows' default console window (especially on Windows 10)

- Open a command console and make a directory for cloning the repo, e.g.:
```
git clone https://github.com/keybase/client.git c:\work\src\github.com\keybase\client
git clone https://github.com/keybase/go-updater.git c:\work\src\github.com\keybase\go-updater
```

### Build Service, Etc

- set GOPATH, e.g. `set GOPATH=c:\work`
- `cd %GOPATH%\src\github.com\keybase\client\go\keybase`
- `go build`

### Electron

#### Node

- Easiest way is via [nodjs binary download](https://nodejs.org/en/download/)
- Alternative way:
  - [node version manager](https://github.com/coreybutler/nvm-windows):

```
> nvm install latest
> nvm use [version]
```

#### Yarn

`npm` should be in your path from the previous step. Then:

```
> npm i -g yarn
```

###  Mingpw

- [GCC via Mingw-64](https://sourceforge.net/projects/mingw-w64/) (for building kbfsdokan)
  - Be sure and choose architecture x86-64, NOT i686
  - Also recommend not installing in `program files`
    - Try `C:\mingw-w64\.... instead`

## Building
[GCC via Mingw-64](https://sourceforge.net/projects/mingw-w64/) (for building kbfsdokan)
- Be sure and choose architecture x86-64, NOT i686
- Also recommend not installing in `program files`, e.g. `C:\mingw-w64\...` instead of `C:\Program Files (x86)\mingw-w64\...`

Environment:
```
set PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH%
set CC=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin\gcc
set CPATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\include
```

## Building Installers

- [Visual Studio 2015 Professional](https://visualstudio.microsoft.com/vs/older-downloads/)
(may require live.com account)

- Environment:
  - `call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\vsvars32.bat"`
  - [.net 3.5.1](https://www.microsoft.com/en-us/download/details.aspx?id=22) (needed for WIX)
  - [WIX tools 3.11.1](http://wixtoolset.org/releases/) (needed to build the installer)
  - Codesigning: see /keybase/team/keybase.builds.windows/readme.html

## Building a debug installer without codesigning

- Environment:
  - `set KEYBASE_WINBUILD=0`

- Invoke the scripts to build the executables:

```cmd
build_prerelease.cmd
buildui.cmd
doinstaller_wix.cmd debug
```

- OR, there's a little script that combines the above:
   - `.\build_debug_installer.cmd`

- Make sure you restart `CMD.exe` after doing the above installs; otherwise, these scripts
  won't be able to find WIX.

## Production CMD Scripts
- `build_prerelease.cmd` builds most of the client executables
- `buildui.cmd` builds the ui
- `doinstaller_wix.cmd` does codesigning on all the executabls and builds the installer (requires signing certificate)
- `dorelease.cmd` calls the above scripts and copies to s3. Invoked by the build bot.

# Upgrading Dokan
Download `DokanSetup_redist.exe` from https://github.com/dokan-dev/dokany/releases
Upload to S3 at prerelease.keybase.io/windows-support/dokan-dev/[VERSION]/DokanSetup_redist.exe
Get the sha1 hash of DokanSetup_redist.exe:
`powershell Get-FileHash -Algorithm sha1 DokanSetup_redist.exe`
Set the hash and version numbers in the installer project file: https://github.com/keybase/client/blob/master/packaging/windows/WIXInstallers/KeybaseApps/KeybaseApps.wixproj#L68
Change the version the service considers new enough: https://github.com/keybase/client/blob/master/go/install/fuse_status_windows.go#L17
Optional: change the minimum version KBFS will work with: https://github.com/keybase/client/blob/master/go/kbfs/dokan/loaddll.go#L110

# Windows VMs
- available [here](https://dev.windows.com/en-us/microsoft-edge/tools/vms/windows/)
- full isos [here](https://www.microsoft.com/en-gb/software-download/windows10ISO), which might need product keys

#  Might be Useful...
- [Chocolatey](https://chocolatey.org/install) (helpful for yarn)
  - then: `choco install yarn`

# Installed Product Layout and Functionality
The installer places/updates all the files and adds:
- startup shortcut for
- start menu shortcut
- background tile color

The service is invoked by the GUI with this command:
`[INSTALLFOLDER]\keybaserq.exe keybase.exe --log-format=file --log-prefix="[INSTALLFOLDER]watchdog." ctl watchdog`
This starts a copy of keybase.exe in watchdog mode, which in turn runs the service and updater and kbfs processes, restarting them if they die or are killed.
If the service is closed with `keybase ctl stop`, which the GUI does when the widtget menu is used, the watchdog will see a different exit code and shut down all everything it's watching.

`keybaserq.exe` has 2 main jobs: de-elevating permissions to run as current user, and running Keybase invisibly, without the CMD window appearing, since it is a console program.

Notable executables
`DokanSetup_redist.exe` - Dokan driver package, invoked from files tab in GUI
`git-remote-keybase.exe` - GIT helper
`kbfsdokan.exe` - kbfs
`kbnm.exe` - browser extension
`keybase.exe` - service
`keybaserq.exe` - quiet launcher and de-elevator
`prompter.exe` - updater GUI
`upd.exe` - updater
`Gui\Keybase.exe` - GUI