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|
parameters:
- name: Paths
type: object
default: []
- name: Repositories
type: object
default:
- Name: $(Build.Repository.Name)
Commitish: $(Build.SourceVersion)
WorkingDirectory: $(System.DefaultWorkingDirectory)
- name: SkipCheckoutNone
type: boolean
default: false
steps:
- ${{ if not(parameters.SkipCheckoutNone) }}:
- checkout: none
- task: PowerShell@2
displayName: 'Sparse checkout repositories'
inputs:
targetType: inline
# Define this inline, because of the chicken/egg problem with loading a script when nothing
# has been checked out yet.
script: |
function SparseCheckout([Array]$paths, [Hashtable]$repository)
{
$dir = $repository.WorkingDirectory
if (!$dir) {
$dir = "./$($repository.Name)"
}
New-Item $dir -ItemType Directory -Force
Push-Location $dir
if (Test-Path .git/info/sparse-checkout) {
$hasInitialized = $true
Write-Host "Repository $($repository.Name) has already been initialized. Skipping this step."
} else {
Write-Host "Repository $($repository.Name) is being initialized."
if ($repository.Commitish -match '^refs/pull/\d+/merge$') {
Write-Host "git clone --no-checkout --filter=tree:0 -c remote.origin.fetch='+$($repository.Commitish):refs/remotes/origin/$($repository.Commitish)' https://github.com/$($repository.Name) ."
git clone --no-checkout --filter=tree:0 -c remote.origin.fetch=''+$($repository.Commitish):refs/remotes/origin/$($repository.Commitish)'' https://github.com/$($repository.Name) .
} else {
Write-Host "git clone --no-checkout --filter=tree:0 https://github.com/$($repository.Name) ."
git clone --no-checkout --filter=tree:0 https://github.com/$($repository.Name) .
}
Write-Host "git sparse-checkout init"
git sparse-checkout init
# Set non-cone mode otherwise path filters will not work in git >= 2.37.0
# See https://github.blog/2022-06-27-highlights-from-git-2-37/#tidbits
Write-Host "git sparse-checkout set --no-cone '/*' '!/*/' '/eng'"
git sparse-checkout set --no-cone '/*' '!/*/' '/eng'
}
# Prevent wildcard expansion in Invoke-Expression (e.g. for checkout path '/*')
$quotedPaths = $paths | ForEach-Object { "'$_'" }
$gitsparsecmd = "git sparse-checkout add $quotedPaths"
Write-Host $gitsparsecmd
Invoke-Expression -Command $gitsparsecmd
Write-Host "Set sparse checkout paths to:"
Get-Content .git/info/sparse-checkout
# sparse-checkout commands after initial checkout will auto-checkout again
if (!$hasInitialized) {
Write-Host "git -c advice.detachedHead=false checkout $($repository.Commitish)"
# This will use the default branch if repo.Commitish is empty
git -c advice.detachedHead=false checkout $($repository.Commitish)
} else {
Write-Host "Skipping checkout as repo has already been initialized"
}
Pop-Location
}
# Paths may be sourced as a yaml object literal OR a dynamically generated variable json string.
# If the latter, convertToJson will wrap the 'string' in quotes, so remove them.
$paths = '${{ convertToJson(parameters.Paths) }}'.Trim('"') | ConvertFrom-Json
# Replace windows backslash paths, as Azure Pipelines default directories are sometimes formatted like 'D:\a\1\s'
$repositories = '${{ convertToJson(parameters.Repositories) }}' -replace '\\', '/' | ConvertFrom-Json -AsHashtable
foreach ($repo in $Repositories) {
SparseCheckout $paths $repo
}
pwsh: true
workingDirectory: $(System.DefaultWorkingDirectory)
|
