From df160db3488b50f830a3b8cf78151aea315eb75c Mon Sep 17 00:00:00 2001
From: Chuck Walbourn <chuckw@microsoft.com>
Date: Wed, 4 Sep 2024 09:39:27 -0700
Subject: [PATCH] Add helper script for releases

---
 build/preparerelease.ps1 | 96 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 build/preparerelease.ps1

diff --git a/build/preparerelease.ps1 b/build/preparerelease.ps1
new file mode 100644
index 00000000..860e9d7e
--- /dev/null
+++ b/build/preparerelease.ps1
@@ -0,0 +1,96 @@
+<#
+
+.SYNOPSIS
+Prepares a PR for release
+
+.DESCRIPTION
+This script is used to do the edits required for preparing a release PR.
+
+.PARAMETER TargetBranch
+This the branch to use as the base of the release. Defaults to 'main'.
+
+.PARAMETER UpdateVersion
+This is a $true or $false value that indicates if the library version should be incremented. Defaults to $true. 
+
+.LINK
+https://github.com/microsoft/UVAtlas/wiki
+
+#>
+
+param(
+    [string]$TargetBranch = "main",
+    [bool]$UpdateVersion = $true
+)
+
+$reporoot = Split-Path -Path $PSScriptRoot -Parent
+$cmake = $reporoot + "\CMakeLists.txt"
+$header = $reporoot + "\UVAtlas\inc\UVAtlas.h"
+$readme = $reporoot + "\README.md"
+$history = $reporoot + "\CHANGELOG.md"
+
+if ((-Not (Test-Path $cmake)) -Or (-Not (Test-Path $header)) -Or (-Not (Test-Path $readme)) -Or (-Not (Test-Path $history)))
+{
+    Write-Error "ERROR: Unexpected location of script file!" -ErrorAction Stop
+}
+
+$branch = git branch --show-current
+if ($branch -ne $TargetBranch)
+{
+    Write-Error "ERROR: Must be in the $TargetBranch branch!" -ErrorAction Stop
+}
+
+git pull -q
+if ($LastExitCode -ne 0)
+{
+    Write-Error "ERROR: Failed to sync branch!" -ErrorAction Stop
+}
+
+$newreleasedate = Get-Date -Format "MMMM d, yyyy"
+$newreleasetag = (Get-Date -Format "MMMyyyy").ToLower()
+
+$version = Get-Content ($cmake) | Select-String -Pattern "set\(UVATLAS_VERSION" -CaseSensitive
+$version -match "([0-9]?\.[0-9]?\.[0-9]?)" > $null
+$version = $Matches.0
+$rawversion = $version.replace('.','')
+
+if($UpdateVersion) {
+    [string]$newrawversion = ([int]$rawversion + 1)
+}
+else {
+    $newrawversion = $rawversion
+}
+
+$newversion = $newrawversion[0] + "." + $newrawversion[1] + "." + $newrawversion[2]
+
+$rawreleasedate = $(Get-Content $readme) | Select-String -Pattern "\*\*[A-Z][a-z]+\S.\d+,?\S.\d\d\d\d\*\*"
+$releasedate = $rawreleasedate -replace '\*',''
+
+Write-Host "     Old Version: " $version
+Write-Host "Old Release Date: " $releasedate
+Write-Host "->"
+Write-Host "    Release Date: " $newreleasedate
+Write-Host "     Release Tag: " $newreleasetag
+Write-Host " Release Version: " $newversion
+
+if($UpdateVersion) {
+    (Get-Content $cmake).Replace("set(UVATLAS_VERSION $version)","set(UVATLAS_VERSION $newversion)") | Set-Content $cmake
+    (Get-Content $header).Replace("#define UVATLAS_VERSION $rawversion","#define UVATLAS_VERSION $newrawversion") | Set-Content $header
+}
+
+(Get-Content $readme).Replace("$rawreleasedate", "**$newreleasedate**") | Set-Content $readme
+
+Get-ChildItem -Path ($reporoot + "\.nuget") -Filter *.nuspec | Foreach-Object {
+    (Get-Content -Path $_.Fullname).Replace("$releasedate", "$newreleasedate") | Set-Content -Path $_.Fullname -Encoding utf8
+    }
+
+[System.Collections.ArrayList]$file = Get-Content $history
+$inserthere = @()
+
+for ($i=0; $i -lt $file.count; $i++) {
+    if ($file[$i] -match "## Release History") {
+        $inserthere += $i + 1
+    }
+}
+
+$file.insert($inserthere[0], "`n### $newreleasedate`n* change history here")
+Set-Content -Path $history -Value $file