Support delve on Windows

[akevinbailey]

The debugger in not enabled on Windows even though I have MinGW-w64 and GDB.

[dlsniper]

Does delve support mingw?

[akevinbailey]

Not sure. Apparently the delve group is working on a windows port.

[dlsniper]

Ok, then when delve will support Windows the plugin will support Windows as well. :)

[ignatov]

BTW, https://github.com/derekparker/delve/pull/276

[kolkov]

Congratulations! Branches was merged today!
https://github.com/derekparker/delve/issues/198#issuecomment-174253735

[GameXG]

Also see.
go-lang-idea-plugin how to turn on debug function?

[kolkov]

fix!
Developers of the plugin start working for debug support on windows. Please waiting for test build from team!

[GameXG]

@kolkov Thank you very much.
Has successfully used debugging。

[ignatov]

I'll be very appreciated if someone can provide a command line (or power shell script) for building Delve on Windows with Go distro downloading/unzipping, setting up GOPATH, etc.

[dlsniper]

@ignatov if there's no script for this I'll try and provide it tomorrow.

[dlsniper]

I've ran this against Windows Server 2012 r2 and Powershell. To run it open a powershell session and simply point the command to the file. It doesn't cleanup the installers but that's easy to add if needed.

Please let me know if there are any issues with this. Thank you.

# Install Go
if (-Not (Test-Path "C:\Go")) {
  echo "Installing Go"
  $file = "go1.5.3.windows-amd64.msi"
  $url  = "https://storage.googleapis.com/golang/"
  $url += $file
  Invoke-WebRequest -UserAgent wget -Uri $url -OutFile $file
  msiexec /package $file /quiet | Out-Null
} else {
  echo "Go already installed"
}

# Install 7Zip
if (-Not (Test-Path "C:\Program Files\7-Zip")) {
  echo "Installing 7Zip"

  $file = "7z1514-x64.msi"
  $url  = "http://7-zip.org/a/"
  $url += $file
  Invoke-WebRequest -UserAgent wget -Uri $url -OutFile $file
  msiexec /package $file /quiet | Out-Null
} else {
  echo "7Zip already installed"
}

# Install MinGW
if (-Not (Test-Path "C:\mingw64")) {
  echo "Installing MinGW"

  $file = "x86_64-4.9.2-release-win32-seh-rt_v4-rev3.7z"
  $url  = "https://bintray.com/artifact/download/drewwells/generic/"
  $url += $file
  Invoke-WebRequest -UserAgent wget -Uri $url -OutFile $file
  &"C:\Program Files\7-Zip\7z.exe" x -oC:\ $file > $null
} else {
  echo "MinGW is already installed"
}

# Install git
if (-Not (Test-Path "C:\Program Files\Git")) {
  $file = "Git-2.7.0-64-bit.exe"
  $url  = "https://github.com/git-for-windows/git/releases/download/v2.7.0.windows.1/"
  $url += $file
  Invoke-WebRequest -UserAgent wget -Uri $url -OutFile $file
  ./Git-2.7.0-64-bit.exe /SILENT /COMPONENTS="icons,ext\reg\shellhere,assoc,assoc_sh" | Out-Null
} else {
  echo "git is already installed"
}

if (-Not (Test-Path "C:\golang")) {
  mkdir "c:\golang"
}

$env:GOPATH="c:\golang"
$env:PATH="c:\Go\bin;c:\mingw64\bin;"+$env:GOPATH+"\bin;C:\Program Files\Git\bin;"+$env:PATH
echo $env:PATH
echo $env:GOPATH
go version
go env
go get github.com/tools/godep
go get -d github.com/derekparker/delve
cd $env:GOPATH\src\github.com\derekparker\delve
godep restore
mingw32-make install

[dlsniper]

I've forgot to mention, this produces the dlv.exe binary under C:\golang\bin.

[ctd1500]

@dlsniper your script tries to install Git twice, but it installs Git during the MinGW step without checking for any existence first.

[kolkov]

I think you need to test GOPATH, not c:/Go only.

[dlsniper]

@dlsniper your script tries to install Git twice, but it installs Git during the MinGW step without checking for any existence first.

@ctd1500 thanks, fixed!

I think you need to test GOPATH, not c:/Go only.

@kolkov I'm sorry but I don't understand this, please explain. Thank you.

[ctd1500]

I think you need to test GOPATH, not c:/Go only.

@dlsniper I think he means it should check if the GOPATH environment variable exists and to (Test-Path $env:GOPATH), before just making a new one. Maybe before trying to install Go as well.

[kolkov]

@dlsniper If I understood correctly, you want to know is Golang installed already?

# Install Go
if (-Not (Test-Path "C:\Go")) {
  echo "Installing Go"
  $file = "go1.5.3.windows-amd64.msi"
  $url  = "https://storage.googleapis.com/golang/"
  $url += $file
  Invoke-WebRequest -UserAgent wget -Uri $url -OutFile $file
  msiexec /package $file /quiet | Out-Null
} else {
  echo "Go already installed"
}

But path of the Golang may be different! Not only c:/go
When we check GOPATH and GOROOT, we will know that Goolang present and where Golang located.

[dlsniper]

I see.

Until I have some information from @ignatov about the environment where this will run I won't make any changes to it.

The script is meant to be used on a blank, CI(?), server.

If someone wants to improve it to make it an universal solution for installing Go, MinGW and then other tools, then please please feel free to do so.

[ignatov]

Hi, thanks for your script!
I suppose that will be better to setup all stuff that you need to the current (working) directory.
This is my script for Linux:

set -x
set -e

mkdir -p gopath
wget -c -N https://storage.googleapis.com/golang/go1.5.1.linux-amd64.tar.gz
tar xfvz go1.5.1.linux-amd64.tar.gz 

export GOROOT=$(pwd)/go/
export GOPATH=$(pwd)/gopath
export PATH=$(pwd)/go/bin:$PATH
which go
go get -u -v github.com/derekparker/delve/cmd/dlv
strip $GOPATH/bin/dlv

[dlsniper]

Ok, I'll make the changes tonight.
Btw, can you please make a small change to the script for linux / osx so that it adds the commit hash to the version info? To do so it would need to run:

go install -ldflags="-X main.Build=$(cd $GOPATH/src/github.com/derekparker/delve && git rev-parse HEAD)" github.com/derekparker/delve/cmd/dlv

Thank you.

[dlsniper]

Here's an updated version: https://gist.github.com/dlsniper/6027dba0291f1287f3f4

[ignatov]

Hi all, please try the latest nightly build (0.10.1119 or higher) on Windows and tell how it is.