feat: support GitHub Enterprise Server environments

README.md

@@ -21,12 +21,13 @@ A GitHub Action to roughly calculate DORA lead time for changes This is not mean
 - `owner-repo`: optional, string, defaults to the repo where the action runs. Can target another owner or org and repo. e.g. `'DeveloperMetrics/DevOpsMetrics'`, but will require authenication (see below)
 - `default-branch`: optional, string, defaults to `main` 
 - `number-of-days`: optional, integer, defaults to `30` (days)
-- commit-counting-method: #optional, defaults to 'last'. Accepts two values, 'last' - to start timing from the last commit of a PR, and 'first' to start timing from the first commit of a PR
+- `commit-counting-method`: #optional, defaults to 'last'. Accepts two values, 'last' - to start timing from the last commit of a PR, and 'first' to start timing from the first commit of a PR
 - `pat-token`: optional, string, defaults to ''. Can be set with GitHub PAT token. Ensure that `Read access to actions and metadata` permission is set. This is a secret, never directly add this into the actions workflow, use a secret.
 - `actions-token`: optional, string, defaults to ''. Can be set with `${{ secrets.GITHUB_TOKEN }}` in the action
 - `app-id`: optional, string, defaults to '', application id of the registered GitHub app
 - `app-install-id`: optional, string, defaults to '', id of the installed instance of the GitHub app
-- `app-private-key` optional, string, defaults to '', private key which has been generated for the installed instance of the GitHub app. Must be provided without leading `'-----BEGIN RSA PRIVATE KEY----- '` and trailing `' -----END RSA PRIVATE KEY-----'`.
+- `app-private-key`: optional, string, defaults to '', private key which has been generated for the installed instance of the GitHub app. Must be provided without leading `'-----BEGIN RSA PRIVATE KEY----- '` and trailing `' -----END RSA PRIVATE KEY-----'`.
+- `api-url`: optional, string, defaults to `${{ github.api_url }}` which should cover both github.com and GitHub Enterprise Server.
 
 To test the current repo (same as where the action runs)
 ```yml

action.yml

@@ -1,6 +1,6 @@
 name: 'DORA lead time for changes'
 description: 'A GitHub Action to roughly calculate DORA lead time for changes'
-author: developermetrics.org 
+author: developermetrics.org
 branding:
   icon: activity
   color: gray-dark
@@ -39,6 +39,9 @@ inputs:
   app-private-key:
     description: 'private key which has been generated for the installed instance of the GitHub app'
     default: ""
+  api-url:
+    description: 'the URL of the GitHub API'
+    default: ${{ github.api_url }}
 outputs:
   markdown-file:
     description: "The markdown that will be posted to the job summary, so that the markdown can saved and used other places (e.g.: README.md)"
@@ -50,7 +53,7 @@ runs:
       id: lead-time
       shell: pwsh
       run: |
-         $result = ${{ github.action_path }}/src/leadtimeforchanges.ps1 -ownerRepo "${{ inputs.owner-repo }}" -workflows "${{ inputs.workflows }}" -branch "${{ inputs.default-branch }}" -numberOfDays ${{ inputs.number-of-days }} -commitCountingMethod ${{ inputs.commit-counting-method }} -patToken "${{ inputs.pat-token }}" -actionsToken "${{ inputs.actions-token }}" -appId "${{ inputs.app-id }}" -appInstallationId "${{ inputs.app-install-id }}" -appPrivateKey "${{ inputs.app-private-key }}"             
+         $result = ${{ github.action_path }}/src/leadtimeforchanges.ps1 -ownerRepo "${{ inputs.owner-repo }}" -workflows "${{ inputs.workflows }}" -branch "${{ inputs.default-branch }}" -numberOfDays ${{ inputs.number-of-days }} -commitCountingMethod ${{ inputs.commit-counting-method }} -patToken "${{ inputs.pat-token }}" -actionsToken "${{ inputs.actions-token }}" -appId "${{ inputs.app-id }}" -appInstallationId "${{ inputs.app-install-id }}" -appPrivateKey "${{ inputs.app-private-key }}" -apiUrl "${{ inputs.api-url }}"
          $filePath="dora-lead-time-markdown.md"
          Set-Content -Path $filePath -Value $result
          "markdown-file=$filePath" | Out-File -FilePath $env:GITHUB_OUTPUT -Append

src/leadtimeforchanges.ps1

@@ -9,7 +9,8 @@ Param(
     [string] $actionsToken = "",
     [string] $appId = "",
     [string] $appInstallationId = "",
-    [string] $appPrivateKey = ""
+    [string] $appPrivateKey = "",
+    [string] $apiUrl = "https://api.github.com"
 )
 
 #The main function
@@ -22,7 +23,8 @@ function Main ([string] $ownerRepo,
     [string] $actionsToken = "",
     [string] $appId = "",
     [string] $appInstallationId = "",
-    [string] $appPrivateKey = "")
+    [string] $appPrivateKey = "",
+    [string] $apiUrl = "https://api.github.com")
 {
 
     #==========================================
@@ -48,7 +50,7 @@ function Main ([string] $ownerRepo,
 
     #Get pull requests from the repo 
     #https://developer.GitHub.com/v3/pulls/#list-pull-requests
-    $uri = "https://api.github.com/repos/$owner/$repo/pulls?state=all&head=$branch&per_page=100&state=closed";
+    $uri = "$apiUrl/repos/$owner/$repo/pulls?state=all&head=$branch&per_page=100&state=closed";
     if (!$authHeader)
     {
         #No authentication
@@ -72,7 +74,7 @@ function Main ([string] $ownerRepo,
         if ($mergedAt -ne $null -and $pr.merged_at -gt (Get-Date).AddDays(-$numberOfDays))
         {
             $prCounter++
-            $url2 = "https://api.github.com/repos/$owner/$repo/pulls/$($pr.number)/commits?per_page=100";
+            $url2 = "$apiUrl/repos/$owner/$repo/pulls/$($pr.number)/commits?per_page=100";
             if (!$authHeader)
             {
                 #No authentication
@@ -109,7 +111,7 @@ function Main ([string] $ownerRepo,
 
     #==========================================
     #Get workflow definitions from github
-    $uri3 = "https://api.github.com/repos/$owner/$repo/actions/workflows"
+    $uri3 = "$apiUrl/repos/$owner/$repo/actions/workflows"
     if (!$authHeader) #No authentication
     {
         $workflowsResponse = Invoke-RestMethod -Uri $uri3 -ContentType application/json -Method Get -SkipHttpErrorCheck -StatusCodeVariable "HTTPStatus"
@@ -156,7 +158,7 @@ function Main ([string] $ownerRepo,
         $totalWorkflowHours = 0
 
         #Get workflow definitions from github
-        $uri4 = "https://api.github.com/repos/$owner/$repo/actions/workflows/$workflowId/runs?per_page=100&status=completed"
+        $uri4 = "$apiUrl/repos/$owner/$repo/actions/workflows/$workflowId/runs?per_page=100&status=completed"
         if (!$authHeader)
         {
             $workflowRunsResponse = Invoke-RestMethod -Uri $uri4 -ContentType application/json -Method Get -SkipHttpErrorCheck -StatusCodeVariable "HTTPStatus"
@@ -208,7 +210,7 @@ function Main ([string] $ownerRepo,
 
     #==========================================
     #Show current rate limit
-    $uri5 = "https://api.github.com/rate_limit"
+    $uri5 = "$apiUrl/rate_limit"
     if (!$authHeader)
     {
         $rateLimitResponse = Invoke-RestMethod -Uri $uri5 -ContentType application/json -Method Get -SkipHttpErrorCheck -StatusCodeVariable "HTTPStatus"
@@ -341,7 +343,7 @@ function ConvertTo-Base64UrlString(
     }
 }
 
-function Get-JwtToken([string] $appId, [string] $appInstallationId, [string] $appPrivateKey)
+function Get-JwtToken([string] $appId, [string] $appInstallationId, [string] $appPrivateKey, [string] $apiUrl )
 {
     # Write-Host "appId: $appId"
     $now = (Get-Date).ToUniversalTime()
@@ -376,7 +378,7 @@ function Get-JwtToken([string] $appId, [string] $appInstallationId, [string] $ap
     catch { throw New-Object System.Exception -ArgumentList ("GitHub App authenication error: Signing with SHA256 and Pkcs1 padding failed using private key $($rsa): $_", $_.Exception) }
     $jwt = $jwt + '.' + $sig
     # send headers
-    $uri = "https://api.github.com/app/installations/$appInstallationId/access_tokens"
+    $uri = "$apiUrl/app/installations/$appInstallationId/access_tokens"
     $jwtHeader = @{
         Accept = "application/vnd.github+json"
         Authorization = "Bearer $jwt"
@@ -410,4 +412,4 @@ function GetFormattedMarkdownForNoResult([string] $workflows, [string] $numberOf
     return $markdown
 }
 
-main -ownerRepo $ownerRepo -workflows $workflows -branch $branch -numberOfDays $numberOfDays -commitCountingMethod $commitCountingMethod  -patToken $patToken -actionsToken $actionsToken -appId $appId -appInstallationId $appInstallationId -appPrivateKey $appPrivateKey
+main -ownerRepo $ownerRepo -workflows $workflows -branch $branch -numberOfDays $numberOfDays -commitCountingMethod $commitCountingMethod  -patToken $patToken -actionsToken $actionsToken -appId $appId -appInstallationId $appInstallationId -appPrivateKey $appPrivateKey -apiUrl $apiUrl