mirror of
https://github.com/github/spec-kit.git
synced 2026-01-30 12:42:02 +00:00
3dcbb6e3a9
Refactored both Bash and PowerShell create-new-feature scripts to modularize and deduplicate logic for determining the next feature number, including new helper functions for extracting the highest number from specs and branches. Improved branch name cleaning and generation. In update-agent-context scripts, removed redundant updates to AGENTS.md for Copilot, streamlining agent update logic.
328 lines
11 KiB
PowerShell
328 lines
11 KiB
PowerShell
#!/usr/bin/env pwsh
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# Create a new feature
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[CmdletBinding()]
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param(
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[switch]$Json,
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[string]$ShortName,
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[int]$Number = 0,
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[switch]$Help,
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[Parameter(ValueFromRemainingArguments = $true)]
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[string[]]$FeatureDescription
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)
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$ErrorActionPreference = 'Stop'
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# Show help if requested
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if ($Help) {
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Write-Host "Usage: ./create-new-feature.ps1 [-Json] [-ShortName <name>] [-Number N] <feature description>"
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Write-Host ""
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Write-Host "Options:"
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Write-Host " -Json Output in JSON format"
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Write-Host " -ShortName <name> Provide a custom short name (2-4 words) for the branch"
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Write-Host " -Number N Specify branch number manually (overrides auto-detection)"
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Write-Host " -Help Show this help message"
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Write-Host ""
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Write-Host "Examples:"
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Write-Host " ./create-new-feature.ps1 'Add user authentication system' -ShortName 'user-auth'"
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Write-Host " ./create-new-feature.ps1 'Implement OAuth2 integration for API'"
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exit 0
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}
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# Check if feature description provided
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if (-not $FeatureDescription -or $FeatureDescription.Count -eq 0) {
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Write-Error "Usage: ./create-new-feature.ps1 [-Json] [-ShortName <name>] <feature description>"
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exit 1
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}
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$featureDesc = ($FeatureDescription -join ' ').Trim()
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# Resolve repository root. Prefer git information when available, but fall back
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# to searching for repository markers so the workflow still functions in repositories that
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# were initialized with --no-git.
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function Find-RepositoryRoot {
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param(
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[string]$StartDir,
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[string[]]$Markers = @('.git', '.specify')
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)
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$current = Resolve-Path $StartDir
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while ($true) {
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foreach ($marker in $Markers) {
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if (Test-Path (Join-Path $current $marker)) {
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return $current
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}
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}
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$parent = Split-Path $current -Parent
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if ($parent -eq $current) {
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# Reached filesystem root without finding markers
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return $null
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}
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$current = $parent
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}
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}
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function Get-HighestNumberFromSpecs {
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param([string]$SpecsDir)
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$highest = 0
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if (Test-Path $SpecsDir) {
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Get-ChildItem -Path $SpecsDir -Directory | ForEach-Object {
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if ($_.Name -match '^(\d+)') {
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$num = [int]$matches[1]
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if ($num -gt $highest) { $highest = $num }
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}
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}
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}
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return $highest
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}
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function Get-HighestNumberFromBranches {
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param()
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$highest = 0
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try {
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$branches = git branch -a 2>$null
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if ($LASTEXITCODE -eq 0) {
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foreach ($branch in $branches) {
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# Clean branch name: remove leading markers and remote prefixes
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$cleanBranch = $branch.Trim() -replace '^\*?\s+', '' -replace '^remotes/[^/]+/', ''
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# Extract feature number if branch matches pattern ###-*
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if ($cleanBranch -match '^(\d+)-') {
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$num = [int]$matches[1]
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if ($num -gt $highest) { $highest = $num }
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}
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}
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}
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} catch {
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# If git command fails, return 0
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Write-Verbose "Could not check Git branches: $_"
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}
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return $highest
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}
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function Get-NextBranchNumber {
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param(
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[string]$ShortName,
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[string]$SpecsDir
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)
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# Fetch all remotes to get latest branch info (suppress errors if no remotes)
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try {
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git fetch --all --prune 2>$null | Out-Null
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} catch {
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# Ignore fetch errors
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}
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# Find remote branches matching the pattern using git ls-remote
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$remoteBranches = @()
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try {
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$remoteRefs = git ls-remote --heads origin 2>$null
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if ($remoteRefs) {
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$remoteBranches = $remoteRefs | Where-Object { $_ -match "refs/heads/(\d+)-$([regex]::Escape($ShortName))$" } | ForEach-Object {
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if ($_ -match "refs/heads/(\d+)-") {
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[int]$matches[1]
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}
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}
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}
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} catch {
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# Ignore errors
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}
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# Check local branches
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$localBranches = @()
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try {
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$allBranches = git branch 2>$null
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if ($allBranches) {
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$localBranches = $allBranches | Where-Object { $_ -match "^\*?\s*(\d+)-$([regex]::Escape($ShortName))$" } | ForEach-Object {
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if ($_ -match "(\d+)-") {
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[int]$matches[1]
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}
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}
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}
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} catch {
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# Ignore errors
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}
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# Check specs directory
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$specDirs = @()
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if (Test-Path $SpecsDir) {
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try {
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$specDirs = Get-ChildItem -Path $SpecsDir -Directory | Where-Object { $_.Name -match "^(\d+)-$([regex]::Escape($ShortName))$" } | ForEach-Object {
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if ($_.Name -match "^(\d+)-") {
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[int]$matches[1]
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}
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}
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} catch {
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# Ignore errors
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}
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}
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# Combine all sources and get the highest number
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$maxNum = 0
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foreach ($num in ($remoteBranches + $localBranches + $specDirs)) {
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if ($num -gt $maxNum) {
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$maxNum = $num
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}
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}
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# Return next number
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return $maxNum + 1
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}
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function ConvertTo-CleanBranchName {
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param([string]$Name)
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return $Name.ToLower() -replace '[^a-z0-9]', '-' -replace '-{2,}', '-' -replace '^-', '' -replace '-$', ''
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}
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$fallbackRoot = (Find-RepositoryRoot -StartDir $PSScriptRoot)
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if (-not $fallbackRoot) {
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Write-Error "Error: Could not determine repository root. Please run this script from within the repository."
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exit 1
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}
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try {
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$repoRoot = git rev-parse --show-toplevel 2>$null
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if ($LASTEXITCODE -eq 0) {
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$hasGit = $true
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} else {
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throw "Git not available"
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}
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} catch {
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$repoRoot = $fallbackRoot
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$hasGit = $false
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}
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Set-Location $repoRoot
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$specsDir = Join-Path $repoRoot 'specs'
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New-Item -ItemType Directory -Path $specsDir -Force | Out-Null
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# Function to generate branch name with stop word filtering and length filtering
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function Get-BranchName {
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param([string]$Description)
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# Common stop words to filter out
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$stopWords = @(
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'i', 'a', 'an', 'the', 'to', 'for', 'of', 'in', 'on', 'at', 'by', 'with', 'from',
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'is', 'are', 'was', 'were', 'be', 'been', 'being', 'have', 'has', 'had',
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'do', 'does', 'did', 'will', 'would', 'should', 'could', 'can', 'may', 'might', 'must', 'shall',
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'this', 'that', 'these', 'those', 'my', 'your', 'our', 'their',
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'want', 'need', 'add', 'get', 'set'
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)
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# Convert to lowercase and extract words (alphanumeric only)
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$cleanName = $Description.ToLower() -replace '[^a-z0-9\s]', ' '
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$words = $cleanName -split '\s+' | Where-Object { $_ }
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# Filter words: remove stop words and words shorter than 3 chars (unless they're uppercase acronyms in original)
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$meaningfulWords = @()
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foreach ($word in $words) {
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# Skip stop words
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if ($stopWords -contains $word) { continue }
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# Keep words that are length >= 3 OR appear as uppercase in original (likely acronyms)
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if ($word.Length -ge 3) {
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$meaningfulWords += $word
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} elseif ($Description -match "\b$($word.ToUpper())\b") {
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# Keep short words if they appear as uppercase in original (likely acronyms)
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$meaningfulWords += $word
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}
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}
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# If we have meaningful words, use first 3-4 of them
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if ($meaningfulWords.Count -gt 0) {
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$maxWords = if ($meaningfulWords.Count -eq 4) { 4 } else { 3 }
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$result = ($meaningfulWords | Select-Object -First $maxWords) -join '-'
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return $result
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} else {
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# Fallback to original logic if no meaningful words found
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$result = ConvertTo-CleanBranchName -Name $Description
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$fallbackWords = ($result -split '-') | Where-Object { $_ } | Select-Object -First 3
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return [string]::Join('-', $fallbackWords)
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}
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}
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# Generate branch name
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if ($ShortName) {
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# Use provided short name, just clean it up
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$branchSuffix = ConvertTo-CleanBranchName -Name $ShortName
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} else {
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# Generate from description with smart filtering
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$branchSuffix = Get-BranchName -Description $featureDesc
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}
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# Determine branch number
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if ($Number -eq 0) {
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if ($hasGit) {
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# Check existing branches on remotes
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$Number = Get-NextBranchNumber -ShortName $branchSuffix -SpecsDir $specsDir
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} else {
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# Fall back to local directory check
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$Number = (Get-HighestNumberFromSpecs -SpecsDir $specsDir) + 1
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}
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}
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$featureNum = ('{0:000}' -f $Number)
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$branchName = "$featureNum-$branchSuffix"
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# GitHub enforces a 244-byte limit on branch names
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# Validate and truncate if necessary
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$maxBranchLength = 244
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if ($branchName.Length -gt $maxBranchLength) {
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# Calculate how much we need to trim from suffix
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# Account for: feature number (3) + hyphen (1) = 4 chars
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$maxSuffixLength = $maxBranchLength - 4
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# Truncate suffix
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$truncatedSuffix = $branchSuffix.Substring(0, [Math]::Min($branchSuffix.Length, $maxSuffixLength))
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# Remove trailing hyphen if truncation created one
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$truncatedSuffix = $truncatedSuffix -replace '-$', ''
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$originalBranchName = $branchName
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$branchName = "$featureNum-$truncatedSuffix"
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Write-Warning "[specify] Branch name exceeded GitHub's 244-byte limit"
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Write-Warning "[specify] Original: $originalBranchName ($($originalBranchName.Length) bytes)"
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Write-Warning "[specify] Truncated to: $branchName ($($branchName.Length) bytes)"
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}
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if ($hasGit) {
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try {
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git checkout -b $branchName | Out-Null
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} catch {
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Write-Warning "Failed to create git branch: $branchName"
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}
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} else {
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Write-Warning "[specify] Warning: Git repository not detected; skipped branch creation for $branchName"
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}
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$featureDir = Join-Path $specsDir $branchName
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New-Item -ItemType Directory -Path $featureDir -Force | Out-Null
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$template = Join-Path $repoRoot '.specify/templates/spec-template.md'
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$specFile = Join-Path $featureDir 'spec.md'
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if (Test-Path $template) {
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Copy-Item $template $specFile -Force
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} else {
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New-Item -ItemType File -Path $specFile | Out-Null
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}
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# Set the SPECIFY_FEATURE environment variable for the current session
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$env:SPECIFY_FEATURE = $branchName
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if ($Json) {
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$obj = [PSCustomObject]@{
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BRANCH_NAME = $branchName
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SPEC_FILE = $specFile
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FEATURE_NUM = $featureNum
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HAS_GIT = $hasGit
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}
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$obj | ConvertTo-Json -Compress
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} else {
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Write-Output "BRANCH_NAME: $branchName"
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Write-Output "SPEC_FILE: $specFile"
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Write-Output "FEATURE_NUM: $featureNum"
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Write-Output "HAS_GIT: $hasGit"
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Write-Output "SPECIFY_FEATURE environment variable set to: $branchName"
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}
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