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Sync eng/common directory with azure-sdk-tools for PR 935 #14693

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Sep 1, 2020
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Sync eng/common directory with azure-sdk-tools for PR 935 #14693

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322 changes: 232 additions & 90 deletions eng/common/scripts/SemVer.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -4,102 +4,244 @@ Parses a semver version string into its components and supports operations aroun
See https://azure.github.io/azure-sdk/policies_releases.html#package-versioning
Example: 1.2.3-preview.4
Example: 1.2.3-beta.4
Components: Major.Minor.Patch-PrereleaseLabel.PrereleaseNumber
Note: A builtin Powershell version of SemVer exists in 'System.Management.Automation'. At this time, it does not parsing of PrereleaseNumber. It's name is also type accelerated to 'SemVer'.
#>

class AzureEngSemanticVersion {
[int] $Major
[int] $Minor
[int] $Patch
[string] $PrereleaseLabel
[int] $PrereleaseNumber
[bool] $IsPrerelease
[string] $RawVersion
# Regex inspired but simplified from https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
static [string] $SEMVER_REGEX = "(?<major>0|[1-9]\d*)\.(?<minor>0|[1-9]\d*)\.(?<patch>0|[1-9]\d*)(?:-?(?<prelabel>[a-zA-Z-]*)(?:\.?(?<prenumber>0|[1-9]\d*)))?"

static [AzureEngSemanticVersion] ParseVersionString([string] $versionString)
[int] $Major
[int] $Minor
[int] $Patch
[string] $PrereleaseLabelSeparator
[string] $PrereleaseLabel
[string] $PrereleaseNumberSeparator
[int] $PrereleaseNumber
[bool] $IsPrerelease
[string] $RawVersion
[bool] $IsSemVerFormat
[string] $DefaultPrereleaseLabel
# Regex inspired but simplified from https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
static [string] $SEMVER_REGEX = "(?<major>0|[1-9]\d*)\.(?<minor>0|[1-9]\d*)\.(?<patch>0|[1-9]\d*)(?:(?<presep>-?)(?<prelabel>[a-zA-Z-]*)(?<prenumsep>\.?)(?<prenumber>0|[1-9]\d*))?"

static [AzureEngSemanticVersion] ParseVersionString([string] $versionString)
{
$version = [AzureEngSemanticVersion]::new($versionString)

if (!$version.IsSemVerFormat) {
return $null
}
return $version
}

static [AzureEngSemanticVersion] ParsePythonVersionString([string] $versionString)
{
$version = [AzureEngSemanticVersion]::ParseVersionString($versionString)

if (!$version) {
return $null
}

$version.SetupPythonConventions()
return $version
}

AzureEngSemanticVersion([string] $versionString)
{
if ($versionString -match "^$([AzureEngSemanticVersion]::SEMVER_REGEX)$")
{
$this.IsSemVerFormat = $true
$this.RawVersion = $versionString
$this.Major = [int]$matches.Major
$this.Minor = [int]$matches.Minor
$this.Patch = [int]$matches.Patch

$this.SetupDefaultConventions()

if ($null -eq $matches['prelabel'])
{
# artifically provide these values for non-prereleases to enable easy sorting of them later than prereleases.
$this.PrereleaseLabel = "zzz"
$this.PrereleaseNumber = 999
$this.IsPrerelease = $false
}
else
{
$this.PrereleaseLabel = $matches["prelabel"]
$this.PrereleaseLabelSeparator = $matches["presep"]
$this.PrereleaseNumber = [int]$matches["prenumber"]
$this.PrereleaseNumberSeparator = $matches["prenumsep"]
$this.IsPrerelease = $true
}
}
else
{
$this.RawVersion = $versionString
$this.IsSemVerFormat = $false
}
}

# If a prerelease label exists, it must be 'beta', and similar semantics used in our release guidelines
# See https://azure.github.io/azure-sdk/policies_releases.html#package-versioning
[bool] HasValidPrereleaseLabel()
{
if ($this.IsPrerelease -eq $true) {
if ($this.PrereleaseLabel -ne $this.DefaultPrereleaseLabel) {
Write-Host "Unexpected pre-release identifier '$($this.PrereleaseLabel)', should be '$($this.DefaultPrereleaseLabel)'"
return $false;
}
if ($this.PrereleaseNumber -lt 1)
{
Write-Host "Unexpected pre-release version '$($this.PrereleaseNumber)', should be >= '1'"
return $false;
}
}
return $true;
}

[string] ToString()
{
$versionString = "{0}.{1}.{2}" -F $this.Major, $this.Minor, $this.Patch

if ($this.IsPrerelease)
{
$versionString += $this.PrereleaseLabelSeparator + $this.PrereleaseLabel + $this.PrereleaseNumberSeparator + $this.PrereleaseNumber
}
return $versionString;
}

[void] IncrementAndSetToPrerelease() {
if ($this.IsPrerelease -eq $false)
{
$this.PrereleaseLabel = $this.DefaultPrereleaseLabel
$this.PrereleaseNumber = 1
$this.Minor++
$this.Patch = 0
$this.IsPrerelease = $true
}
else
{
$this.PrereleaseNumber++
}
}

[void] SetupPythonConventions()
{
# Python uses no separators and "b" for beta so this sets up the the object to work with those conventions
$this.PrereleaseLabelSeparator = $this.PrereleaseNumberSeparator = ""
$this.DefaultPrereleaseLabel = "b"
}

[void] SetupDefaultConventions()
{
# Use the default common conventions
$this.PrereleaseLabelSeparator = "-"
$this.PrereleaseNumberSeparator = "."
$this.DefaultPrereleaseLabel = "beta"
}

static [string[]] SortVersionStrings([string[]] $versionStrings)
{
$versions = $versionStrings | ForEach-Object { [AzureEngSemanticVersion]::ParseVersionString($_) }
$sortedVersions = [AzureEngSemanticVersion]::SortVersions($versions)
return ($sortedVersions | ForEach-Object { $_.ToString() })
}

static [AzureEngSemanticVersion[]] SortVersions([AzureEngSemanticVersion[]] $versions)
{
return ($versions | Sort-Object -Property Major, Minor, Patch, PrereleaseLabel, PrereleaseNumber -Descending)
}

static [void] QuickTests()
{
$versions = @(
"1.0.1",
"2.0.0",
"2.0.0-alpha.20200920",
"2.0.0-beta.2",
"1.0.10",
"2.0.0-beta.1",
"2.0.0-beta.10",
"1.0.0",
"1.0.0b2",
"1.0.2")

$expectedSort = @(
"2.0.0",
"2.0.0-beta.10",
"2.0.0-beta.2",
"2.0.0-beta.1",
"2.0.0-alpha.20200920",
"1.0.10",
"1.0.2",
"1.0.1",
"1.0.0",
"1.0.0b2")

$sort = [AzureEngSemanticVersion]::SortVersionStrings($versions)

for ($i = 0; $i -lt $expectedSort.Count; $i++)
{
try {
return [AzureEngSemanticVersion]::new($versionString)
}
catch {
return $null
}
}

AzureEngSemanticVersion([string] $versionString){
if ($versionString -match "^$([AzureEngSemanticVersion]::SEMVER_REGEX)$") {
if ($null -eq $matches['prelabel']) {
# artifically provide these values for non-prereleases to enable easy sorting of them later than prereleases.
$prelabel = "zzz"
$prenumber = 999;
$isPre = $false;
}
else {
$prelabel = $matches["prelabel"]
$prenumber = [int]$matches["prenumber"]
$isPre = $true;
}

$this.Major = [int]$matches.Major
$this.Minor = [int]$matches.Minor
$this.Patch = [int]$matches.Patch
$this.PrereleaseLabel = $prelabel
$this.PrereleaseNumber = $prenumber
$this.IsPrerelease = $isPre
$this.RawVersion = $versionString
}
else
{
throw "Invalid version string: '$versionString'"
}
}

# If a prerelease label exists, it must be 'preview', and similar semantics used in our release guidelines
# See https://azure.github.io/azure-sdk/policies_releases.html#package-versioning
[bool] HasValidPrereleaseLabel(){
if ($this.IsPrerelease -eq $true) {
if ($this.PrereleaseLabel -ne 'preview') {
Write-Error "Unexpected pre-release identifier '$this.PrereleaseLabel', should be 'preview'"
return $false;
}
if ($this.PrereleaseNumber -lt 1)
{
Write-Error "Unexpected pre-release version '$this.PrereleaseNumber', should be >= '1'"
return $false;
}
}
return $true;
}

[string] ToString(){
if ($this.IsPrerelease -eq $false)
{
$versionString = "{0}.{1}.{2}" -F $this.Major, $this.Minor, $this.Patch
}
else
{
$versionString = "{0}.{1}.{2}-{3}.{4}" -F $this.Major, $this.Minor, $this.Patch, $this.PrereleaseLabel, $this.PrereleaseNumber
}
return $versionString;
}

[void] IncrementAndSetToPrerelease(){
if ($this.IsPrerelease -eq $false)
{
$this.PrereleaseLabel = 'preview'
$this.PrereleaseNumber = 1
$this.Minor++
$this.Patch = 0
$this.IsPrerelease = $true
}
else
{
$this.PrereleaseNumber++
}
if ($sort[$i] -ne $expectedSort[$i]) {
Write-Host "Error: Incorrect sort:"
Write-Host "Expected: "
Write-Host $expectedSort
Write-Host "Actual:"
Write-Host $sort
break
}
}

$devVerString = "1.2.3-alpha.20200828.1"
$devVerNew = [AzureEngSemanticVersion]::new($devVerString)
if (!$devVerNew -or $devVerNew.IsSemVerFormat -ne $false) {
Write-Host "Error: Didn't expect daily dev version to match our semver regex because of the extra .r"
}
$devVerparse = [AzureEngSemanticVersion]::ParseVersionString($devVerString)
if ($devVerparse) {
Write-Host "Error: Didn't expect daily dev version to parse because of the extra .r"
}

$gaVerString = "1.2.3"
$gaVer = [AzureEngSemanticVersion]::ParseVersionString($gaVerString)
if ($gaVer.Major -ne 1 -or $gaVer.Minor -ne 2 -or $gaVer.Patch -ne 3) {
Write-Host "Error: Didn't correctly parse ga version string $gaVerString"
}
if ($gaVerString -ne $gaVer.ToString()) {
Write-Host "Error: Ga string did not correctly round trip with ToString"
}
$gaVer.IncrementAndSetToPrerelease()
if ("1.3.0-beta.1" -ne $gaVer.ToString()) {
Write-Host "Error: Ga string did not correctly increment"
}

$betaVerString = "1.2.3-beta.4"
$betaVer = [AzureEngSemanticVersion]::ParseVersionString($betaVerString)
if ($betaVer.Major -ne 1 -or $betaVer.Minor -ne 2 -or $betaVer.Patch -ne 3 -or $betaVer.PrereleaseLabel -ne "beta" -or $betaVer.PrereleaseNumber -ne 4) {
Write-Host "Error: Didn't correctly parse beta version string $betaVerString"
}
if ($betaVerString -ne $betaVer.ToString()) {
Write-Host "Error: beta string did not correctly round trip with ToString"
}
$betaVer.IncrementAndSetToPrerelease()
if ("1.2.3-beta.5" -ne $betaVer.ToString()) {
Write-Host "Error: Beta string did not correctly increment"
}

$pythonBetaVerString = "1.2.3b4"
$pbetaVer = [AzureEngSemanticVersion]::ParsePythonVersionString($pythonBetaVerString)
if ($pbetaVer.Major -ne 1 -or $pbetaVer.Minor -ne 2 -or $pbetaVer.Patch -ne 3 -or $pbetaVer.PrereleaseLabel -ne "b" -or $pbetaVer.PrereleaseNumber -ne 4) {
Write-Host "Error: Didn't correctly parse python beta string $pythonBetaVerString"
}
if ($pythonBetaVerString -ne $pbetaVer.ToString()) {
Write-Host "Error: python beta string did not correctly round trip with ToString"
}
$pbetaVer.IncrementAndSetToPrerelease()
if ("1.2.3b5" -ne $pbetaVer.ToString()) {
Write-Host "Error: Python beta string did not correctly increment"
}

Write-Host "QuickTests done"
}
}