renamed windows container

containers/buildkite-premerge-windows/post-checkout.bat

@@ -1,2 +0,0 @@
-echo "post-checkout"
-powershell c:\llvm-premerge-checks\scripts\windows\post-checkout.ps1

containers/buildkite-premerge-windows/pre-checkout.bat

@@ -1,5 +0,0 @@
-echo "pre-checkout: update scripts"
-cd c:\llvm-premerge-checks
-git pull
-git rev-parse HEAD
-powershell c:\llvm-premerge-checks\scripts\windows\pre-checkout.ps1

containers/buildkite-windows/Dockerfile

@@ -97,7 +97,10 @@ RUN git config --system core.longpaths true & `
 
 # handle for debugging of files beeing locked by some processes.
 RUN choco install -y handle
-COPY start_agent.ps1 C:\scripts\
+COPY start_agent.ps1 c:\scripts\
+COPY pre-checkout.ps1 c:\scripts\
+COPY post-checkout.ps1 c:\scripts\
+COPY unlock_path.ps1 c:\scripts\
 COPY pre-checkout.bat c:\buildkite-agent\hooks\
 COPY post-checkout.bat c:\buildkite-agent\hooks\
 CMD ["powershell", "C:\\scripts\\start_agent.ps1"]

containers/buildkite-windows/post-checkout.bat

@@ -0,0 +1,2 @@
+echo "post-checkout"
+powershell c:\scripts\post-checkout.ps1

containers/buildkite-windows/post-checkout.ps1

@@ -0,0 +1,21 @@
+# Copyright 2021 Google LLC
+
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     https://llvm.org/LICENSE.txt
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# As git gc takes non-trivial time on windows, run it only 5% of the time.
+if (( Get-Random -Maximum 100 ) -lt 10 ) {
+  echo "running git gc"
+  pwd
+  git gc
+}
+

containers/buildkite-windows/pre-checkout.bat

@@ -0,0 +1,2 @@
+REM TODO: use powershell shell for hooks directly
+powershell c:\scripts\pre-checkout.ps1

containers/buildkite-windows/pre-checkout.ps1

@@ -0,0 +1,27 @@
+$env:BUILDKITE_BUILD_CHECKOUT_PATH="$env:BUILDKITE_BUILD_PATH/src"
+
+echo "unlocking git"
+taskkill /F /IM git.exe
+rm -Force "$env:BUILDKITE_BUILD_CHECKOUT_PATH/.git/index.lock"
+echo "BUILDKITE_BUILD_CHECKOUT_PATH: $env:BUILDKITE_BUILD_CHECKOUT_PATH"
+echo "BUILDKITE_BUILD_PATH: $env:BUILDKITE_BUILD_PATH"
+echo 'running processes (before)'
+Get-Process | Where-Object {$_.Path -like "$env:BUILDKITE_BUILD_CHECKOUT_PATH*"} | Select-Object -ExpandProperty Path
+echo "unlocking $env:BUILDKITE_BUILD_CHECKOUT_PATH"
+handle -nobanner $env:BUILDKITE_BUILD_CHECKOUT_PATH
+c:\scripts\unlock_path.ps1 $env:BUILDKITE_BUILD_CHECKOUT_PATH
+echo 'running processes (after)'
+Get-Process | Where-Object {$_.Path -like "$env:BUILDKITE_BUILD_CHECKOUT_PATH*"} | Select-Object -ExpandProperty Path
+
+echo "BUILDKITE_REPO: $env:BUILDKITE_REPO"
+if (Test-Path -Path $env:BUILDKITE_BUILD_CHECKOUT_PATH) {
+    Set-Location -Path $env:BUILDKITE_BUILD_CHECKOUT_PATH
+    $remoteUrl = git remote get-url origin
+    echo "current remote URL: $remoteUrl"
+    if ($remoteUrl -ne $env:BUILDKITE_REPO) {
+        Write-Host "Remote URL does not match. Deleting and recreating the directory."
+        Set-Location -Path "C:\"
+        Remove-Item -Path $env:BUILDKITE_BUILD_CHECKOUT_PATH -Recurse -Force
+    }
+}
+

containers/buildkite-windows/unlock_path.ps1

@@ -0,0 +1,47 @@
+# Copyright 2021 Google LLC
+
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     https://llvm.org/LICENSE.txt
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Based ob https://dandraka.com/2019/08/13/find-and-kill-processes-that-lock-a-file-or-directory/
+$path = $args[0]
+$handleOutput = & handle -a $path
+Write-Host "Unlocking path" $path
+if ($handleOutput -match "no matching handles found") {
+    Write-Host "Nothing to kill, exiting"
+    exit
+}
+$pidList = New-Object System.Collections.ArrayList
+$lines = $handleOutput -split "`n"
+foreach($line in $lines) {
+  # sample line:
+  # chrome.exe         pid: 11392  type: File           5BC: C:\Windows\Fonts\timesbd.ttf
+  # regex to get pid and process name: (.*)\b(?:.*)(?:pid: )(\d*)
+  $matches = $null
+  $line -match "(.*)\b(?:.*)(?:pid: )(\d*)" | Out-Null
+  if (-not $matches) { continue }
+  if ($matches.Count -eq 0) { continue }
+  $pidName = $matches[1]
+  $pidStr = $matches[2]
+  if ($pidList -notcontains $pidStr) {
+    Write-Host "Will kill process $pidStr $pidName"
+    $pidList.Add($pidStr) | Out-Null
+  }
+}
+
+foreach($pidStr in $pidList) {
+    $pidInt = [int]::Parse($pidStr)
+    Stop-Process -Id $pidInt -Force
+    Write-Host "Killed process $pidInt"
+}
+
+Write-Host "Finished"