Add PowerShell script to update latest package version info in Versions repo

diff --git a/UpdatePublishedVersions.ps1 b/UpdatePublishedVersions.ps1
new file mode 100644 (file)
index 0000000..5de7c17
--- /dev/null
+++ b/UpdatePublishedVersions.ps1
@@ -0,0 +1,144 @@
+#
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+# This script updates the dotnet/versions repository based on a set of packages. It directly
+# commits the changes using GitHub APIs.
+
+param(
+    [Parameter(Mandatory=$true)][string]$gitHubUser,
+    [Parameter(Mandatory=$true)][string]$gitHubEmail,
+    [Parameter(Mandatory=$true)][string]$gitHubAuthToken,
+    [Parameter(Mandatory=$true)][string]$versionsRepoOwner,
+    [Parameter(Mandatory=$true)][string]$versionsRepo,
+    [Parameter(Mandatory=$true)][string]$versionsRepoPath,
+    # A pattern matching all packages in the set that the versions repository should be set to.
+    [Parameter(Mandatory=$true)][string]$nupkgPath,
+    # Print out the new file contents, but don't change the versions repository.
+    [switch]$dryRun)
+
+function ConvertPathTo-Package([string]$path)
+{
+    # Find the package ID and version using a regex. This matches the semantic version
+    # and assumes everything to the left is the id or a path to the package directory.
+    $matched = $path -match '^(.*\\)?(.*?)\.(([0-9]+\.)?[0-9]+\.[0-9]+(-([A-z0-9-]+))?)\.(symbols\.)?nupkg$'
+    if ($matched)
+    {
+        $packageInfo = @{
+            Path = $path
+            Name = $matches[2]
+            Version = $matches[3]
+            Prerelease = $matches[6]
+        }
+        $packageInfo.NameVersion = "$($packageInfo.Name) $($packageInfo.Version)"
+        return $packageInfo
+    }
+    else
+    {
+        throw "Couldn't find name and version from path $path."
+    }
+}
+
+# Updates a GitHub file with the specified file contents
+function Update-GitHub-File(
+    [string]$user = $gitHubUser,
+    [string]$email = $gitHubEmail,
+    [string]$authToken = $gitHubAuthToken,
+    [string]$owner = $versionsRepoOwner,
+    [string]$repo = $versionsRepo,
+    [string]$path,
+    [string]$newFileContent,
+    [string]$commitMessage)
+{
+    function message([string]$message)
+    {
+        Write-Host -ForegroundColor Green "*** $message ***"
+    }
+
+    $headers = @{
+        'Accept' = 'application/vnd.github.v3+json'
+        'Authorization' = "token $authToken"
+    }
+
+    $fileUrl = "https://api.github.com/repos/$owner/$repo/contents/$path"
+
+    message "Getting the `"sha`" of the current contents of file '$owner/$repo/$path'"
+
+    $currentFile = Invoke-WebRequest $fileUrl -UseBasicParsing -Headers $headers
+    $currentSha = (ConvertFrom-Json $currentFile.Content).sha
+
+    message "Got `"sha`" value of '$currentSha'"
+
+    message "Request to update file '$owner/$repo/$path' contents to:"
+    Write-Host $newFileContent
+
+    if ($dryRun)
+    {
+        message 'Not sending request: dry run.'
+        return
+    }
+
+    # Base64 encode the string
+    function ToBase64([string]$value)
+    {
+       return [System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($value))
+    }
+
+    $updateFileBody = 
+@"
+{
+  "message": "$commitMessage",
+  "committer": {
+    "name": "$user",
+    "email": "$email"
+  },
+  "content": "$(ToBase64 $newFileContent)",
+  "sha": "$currentSha"
+}
+"@
+
+    message 'Sending request...'
+    $putResponse = Invoke-WebRequest $fileUrl -UseBasicParsing -Method PUT -Body $updateFileBody -Headers $headers
+
+    if ($putResponse.StatusCode -ge 200 -and $putResponse.StatusCode -lt 300)
+    {
+        message 'Successfully updated the file'
+    }
+}
+
+# Store result of Get-ChildItem before piping to ConvertPathTo-Package. When directly piping, exceptions are ignored.
+$packagePaths = Get-ChildItem $nupkgPath
+$packages = $packagePaths | %{ ConvertPathTo-Package $_ }
+
+$prereleaseVersion = ''
+foreach ($package in $packages)
+{
+    if ($package.Prerelease)
+    {
+        $prereleaseVersion = $package.Prerelease
+        break
+    }
+}
+
+if (!$prereleaseVersion)
+{
+    throw "Could not find a Prerelease version in '$newPackages'"
+}
+
+$versionFilePath = "$versionsRepoPath/Latest.txt"
+$versionFileContent = "$prereleaseVersion`n"
+
+Update-GitHub-File `
+    -path $versionFilePath `
+    -newFileContent $versionFileContent `
+    -commitMessage "Update '$versionFilePath' with $prereleaseVersion" 
+
+$packageInfoFilePath = "$versionsRepoPath/Latest_Packages.txt"
+$packageInfoFileContent = ($packages | %{ $_.NameVersion } | Sort-Object) -join "`r`n"
+
+Update-GitHub-File `
+    -path $packageInfoFilePath `
+    -newFileContent $packageInfoFileContent `
+    -commitMessage "Adding package info to '$packageInfoFilePath' for $prereleaseVersion"
+    
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