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Github-Helper.psm1
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Github-Helper.psm1
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function Get-dependencies {
Param(
$probingPathsJson,
$token,
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $saveToPath = (Join-Path $ENV:GITHUB_WORKSPACE "dependencies"),
[string] $mask = "-Apps-"
)
if (!(Test-Path $saveToPath)) {
New-Item $saveToPath -ItemType Directory | Out-Null
}
Write-Host "Getting all the artifacts from probing paths"
$downloadedList = @()
$probingPathsJson | ForEach-Object {
$dependency = $_
if (-not ($dependency.PsObject.Properties.name -eq "repo")) {
throw "AppDependencyProbingPaths needs to contain a repo property, pointing to the repository on which you have a dependency"
}
if (-not ($dependency.PsObject.Properties.name -eq "AuthTokenSecret")) {
$dependency | Add-Member -name "AuthTokenSecret" -MemberType NoteProperty -Value $token
}
if (-not ($dependency.PsObject.Properties.name -eq "Version")) {
$dependency | Add-Member -name "Version" -MemberType NoteProperty -Value "latest"
}
if (-not ($dependency.PsObject.Properties.name -eq "Projects")) {
$dependency | Add-Member -name "Projects" -MemberType NoteProperty -Value "*"
}
if (-not ($dependency.PsObject.Properties.name -eq "release_status")) {
$dependency | Add-Member -name "release_status" -MemberType NoteProperty -Value "release"
}
# TODO better error messages
$repository = ([uri]$dependency.repo).AbsolutePath.Replace(".git", "").TrimStart("/")
if ($dependency.release_status -eq "latestBuild") {
# TODO it should check the branch and limit to a certain branch
Write-Host "Getting artifacts from $($dependency.repo)"
$artifacts = GetArtifacts -token $dependency.authTokenSecret -api_url $api_url -repository $repository -mask $mask
if ($dependency.version -ne "latest") {
$artifacts = $artifacts | Where-Object { ($_.tag_name -eq $dependency.version) }
}
$artifact = $artifacts | Select-Object -First 1
if ($artifact) {
$download = DownloadArtifact -path $saveToPath -token $dependency.authTokenSecret -artifact $artifact
}
else {
Write-Host -ForegroundColor Red "Could not find any artifacts that matches '*$mask*'"
}
}
else {
Write-Host "Getting releases from $($dependency.repo)"
$releases = GetReleases -api_url $api_url -token $dependency.authTokenSecret -repository $repository
if ($dependency.version -ne "latest") {
$releases = $releases | Where-Object { ($_.tag_name -eq $dependency.version) }
}
switch ($dependency.release_status) {
"release" { $release = $releases | Where-Object { -not ($_.prerelease -or $_.draft ) } | Select-Object -First 1 }
"prerelease" { $release = $releases | Where-Object { ($_.prerelease ) } | Select-Object -First 1 }
"draft" { $release = $releases | Where-Object { ($_.draft ) } | Select-Object -First 1 }
Default { throw "Invalid release status '$($dependency.release_status)' is encountered." }
}
if (!($release)) {
throw "Could not find a release that matches the criteria."
}
$projects = $dependency.projects
if ([string]::IsNullOrEmpty($dependency.projects)) {
$projects = "*"
}
$download = DownloadRelease -token $dependency.authTokenSecret -projects $projects -api_url $api_url -repository $repository -path $saveToPath -release $release -mask $mask
}
if ($download) {
$downloadedList += $download
}
}
return $downloadedList;
}
function SemVerObjToSemVerStr {
Param(
$semVerObj
)
try {
$str = "$($semVerObj.Prefix)$($semVerObj.Major).$($semVerObj.Minor).$($semVerObj.Patch)"
for ($i=0; $i -lt 5; $i++) {
$seg = $semVerObj."Addt$i"
if ($seg -eq 'zzz') { break }
if ($i -eq 0) { $str += "-$($seg)" } else { $str += ".$($seg)" }
}
$str
}
catch {
throw "'$SemVerObj' cannot be recognized as a semantic version object (internal error)"
}
}
function SemVerStrToSemVerObj {
Param(
[string] $semVerStr
)
$obj = New-Object PSCustomObject
try {
$prefix = ''
$verstr = $semVerStr
if ($semVerStr -like 'v*') {
$prefix = 'v'
$verStr = $semVerStr.Substring(1)
}
$version = [System.Version]"$($verStr.split('-')[0])"
if ($version.Revision -ne -1) { throw "not semver" }
$obj | Add-Member -MemberType NoteProperty -Name "Prefix" -Value $prefix
$obj | Add-Member -MemberType NoteProperty -Name "Major" -Value ([int]$version.Major)
$obj | Add-Member -MemberType NoteProperty -Name "Minor" -Value ([int]$version.Minor)
$obj | Add-Member -MemberType NoteProperty -Name "Patch" -Value ([int]$version.Build)
0..4 | ForEach-Object {
$obj | Add-Member -MemberType NoteProperty -Name "Addt$_" -Value 'zzz'
}
$idx = $verStr.IndexOf('-')
if ($idx -gt 0) {
$segments = $verStr.SubString($idx+1).Split('.')
if ($segments.Count -ge 5) {
throw "max. 5 segments"
}
0..($segments.Count-1) | ForEach-Object {
$result = 0
if ([int]::TryParse($segments[$_], [ref] $result)) {
$obj."Addt$_" = [int]$result
}
else {
if ($segments[$_] -ge 'zzz') {
throw "Unsupported segment"
}
$obj."Addt$_" = $segments[$_]
}
}
}
$newStr = SemVerObjToSemVerStr -semVerObj $obj
if ($newStr -cne $semVerStr) {
throw "Not equal"
}
}
catch {
throw "'$semVerStr' cannot be recognized as a semantic version string (https://semver.org)"
}
$obj
}
function GetReleases {
Param(
[string] $token,
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $repository = $ENV:GITHUB_REPOSITORY
)
Write-Host "Analyzing releases $api_url/repos/$repository/releases"
$releases = @(Invoke-WebRequest -UseBasicParsing -Headers (GetHeader -token $token) -Uri "$api_url/repos/$repository/releases" | ConvertFrom-Json)
if ($releases.Count -gt 1) {
# Sort by SemVer tag
try {
$sortedReleases = $releases.tag_name |
ForEach-Object { SemVerStrToSemVerObj -semVerStr $_ } |
Sort-Object -Property Major,Minor,Patch,Addt0,Addt1,Addt2,Addt3,Addt4 -Descending |
ForEach-Object { SemVerObjToSemVerStr -semVerObj $_ } | ForEach-Object {
$tag_name = $_
$releases | Where-Object { $_.tag_name -eq $tag_name }
}
$sortedReleases
}
catch {
Write-Host -ForegroundColor red "Some of the release tags cannot be recognized as a semantic version string (https://semver.org)"
Write-Host -ForegroundColor red "Using default GitHub sorting for releases"
$releases
}
}
else {
$releases
}
}
function GetHeader {
param (
[string] $token,
[string] $accept = "application/json"
)
$headers = @{ "Accept" = $accept }
if (![string]::IsNullOrEmpty($token)) {
$headers["Authorization"] = "token $token"
}
return $headers
}
function GetReleaseNotes {
Param(
[string] $token,
[string] $repository = $ENV:GITHUB_REPOSITORY,
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $tag_name,
[string] $previous_tag_name
)
Write-Host "Generating release note $api_url/repos/$repository/releases/generate-notes"
$postParams = @{
tag_name = $tag_name;
}
if (-not [string]::IsNullOrEmpty($previous_tag_name)) {
$postParams["previous_tag_name"] = $previous_tag_name
}
Invoke-WebRequest -UseBasicParsing -Headers (GetHeader -token $token) -Method POST -Body ($postParams | ConvertTo-Json) -Uri "$api_url/repos/$repository/releases/generate-notes"
}
function GetLatestRelease {
Param(
[string] $token,
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $repository = $ENV:GITHUB_REPOSITORY
)
Write-Host "Getting the latest release from $api_url/repos/$repository/releases/latest"
try {
Invoke-WebRequest -UseBasicParsing -Headers (GetHeader -token $token) -Uri "$api_url/repos/$repository/releases/latest" | ConvertFrom-Json
}
catch {
return $null
}
}
function DownloadRelease {
Param(
[string] $token,
[string] $projects = "*",
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $repository = $ENV:GITHUB_REPOSITORY,
[string] $path,
[string] $mask = "-Apps-",
$release
)
if ($projects -eq "") { $projects = "*" }
Write-Host "Downloading release $($release.Name)"
$headers = @{
"Authorization" = "token $token"
"Accept" = "application/octet-stream"
}
$projects.Split(',') | ForEach-Object {
$project = $_
Write-Host "project '$project'"
$release.assets | Where-Object { $_.name -like "$project$mask*.zip" } | ForEach-Object {
Write-Host "$api_url/repos/$repository/releases/assets/$($_.id)"
$filename = Join-Path $path $_.name
Invoke-WebRequest -UseBasicParsing -Headers $headers -Uri "$api_url/repos/$repository/releases/assets/$($_.id)" -OutFile $filename
return $filename
}
}
}
function GetArtifacts {
Param(
[string] $token,
[string] $api_url = $ENV:GITHUB_API_URL,
[string] $repository = $ENV:GITHUB_REPOSITORY,
[string] $mask = "-Apps-"
)
Write-Host "Analyzing artifacts"
$artifacts = Invoke-WebRequest -UseBasicParsing -Headers (GetHeader -token $token) -Uri "$api_url/repos/$repository/actions/artifacts" | ConvertFrom-Json
$artifacts.artifacts | Where-Object { $_.name -like "*$($mask)*" }
}
function DownloadArtifact {
Param(
[string] $token,
[string] $path,
$artifact
)
Write-Host "Downloading artifact $($artifact.Name)"
$headers = @{
"Authorization" = "token $token"
"Accept" = "application/vnd.github.v3+json"
}
$outFile = Join-Path $path "$($artifact.Name).zip"
Invoke-WebRequest -UseBasicParsing -Headers $headers -Uri $artifact.archive_download_url -OutFile $outFile
$outFile
}