public/Install-Composer.ps1
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function Install-Composer() { <# .Synopsis Installs Composer. .Description Download and install Composer, the PHP dependency manager. .Parameter Path Specify where Composer will be installed. If not specified, we'll install it in C:\ProgramData\ComposerBin for system-wide installations, or in C:\Users\<user>\AppData\Local\ComposerBin for user-specific installations. .Parameter PhpPath The path of PHP (if not specified, we'll detect it). .Parameter Scope Install Composer the current user only ('User' - default), or at system-level ('System'). .Parameter NoAddToPath Specify this option to don't add the Composer install path to the PATH environment variable. .Parameter NoCache Specify this option to don't use a previously downloaded Composer installer. #> [OutputType()] param ( [Parameter(Mandatory = $false, Position = 0, HelpMessage = 'Composer install location')] [string] $Path, [Parameter(Mandatory = $false, Position = 1, HelpMessage = 'Where PHP is installed')] [string] $PhpPath, [Parameter(Mandatory = $false, Position = 2, HelpMessage = 'Install for current user of for any user')] [ValidateSet('User', 'System')] [string] $Scope, [switch] $NoAddToPath, [switch] $NoCache ) begin { } process { if ($null -eq $Path -or '' -eq $Path) { if ($Scope -eq 'System') { $Path = [Environment]::GetFolderPath('CommonApplicationData') } else { $Path = [Environment]::GetFolderPath('LocalApplicationData') } $Path = Join-Path -Path $Path -ChildPath 'ComposerBin' } $Path = [System.IO.Path]::GetFullPath($Path) if (Test-Path -LiteralPath $Path -PathType Leaf) { throw "The specified installation path ($Path) points to an existing file" } if ($null -eq $PhpPath -or $PhpPath -eq '') { $phpAutodetect = $true $phpVersion = [PhpVersionInstalled]::FromEnvironmentOne() Write-Verbose ('PHP detected at ' + $phpVersion.Folder) } else { $phpAutodetect = $false $phpVersion = [PhpVersionInstalled]::FromPath($PhpPath) } $installerUrl = 'https://getcomposer.org/installer'; $installer = '' $tempPhar = '' $pathCreatedHere = $false try { if ($NoCache) { $installer = [System.IO.Path]::GetTempFileName(); Set-NetSecurityProtocolType Write-Verbose "Downloading from $installerUrl" Invoke-WebRequest -UseBasicParsing -Uri $installerUrl -OutFile $installer } else { $installer = Get-FileFromUrlOrCache -Url $installerUrl -CachedFileName 'composer-installer.php' } $tempPhar = [System.IO.Path]::GetTempFileName(); $args = @() $args += $installer $args += '--install-dir=' + (Split-Path -Path $tempPhar -Parent) $args += '--filename=' + (Split-Path -Path $tempPhar -Leaf) $args += '2>&1' Write-Verbose "Launching Composer installer" $installerResult = & $phpVersion.ExecutablePath $args if ($LASTEXITCODE -ne 0) { throw $installerResult } Write-Verbose "Composer succeeded" Write-Verbose "Installing to $Path" If (-Not(Test-Path -LiteralPath $Path)) { New-Item -ItemType Directory -Path $Path | Out-Null $pathCreatedHere = $true } Write-Verbose "Moving composer.phar" $destPhar = Join-Path -Path $Path -ChildPath 'composer.phar' if (Test-Path -LiteralPath $destPhar -PathType Leaf) { Remove-Item -LiteralPath $destPhar } Move-Item -LiteralPath $tempPhar -Destination $destPhar -Force Write-Verbose "Creating composer.bat" $lines = @() $lines += '@echo off' $lines += 'setlocal disabledelayedexpansion' $lines += '' if ($phpAutodetect) { $line = 'php.exe'; } else { $line = '"' + $phpVersion.ExecutablePath + '"'; } $lines += $line + ' "%~dpn0.phar" %*' $destBat = Join-Path -Path $Path -ChildPath 'composer.bat' Set-Content -Path $destBat -Value $lines if (-not($NoAddToPath)) { Write-Verbose 'Adding to PATH' Edit-FolderInPath -Operation Add -Path $Path -Persist $Scope -CurrentProcess } } catch { if ($pathCreatedHere) { try { Remove-Item -LiteralPath $Path -Recurse } catch { Write-Debug 'Failed to remove extraction directory' } } throw } finally { if ($NoCache -and $installer -ne '') { if (Test-Path -LiteralPath $installer -PathType Leaf) { Remove-Item -LiteralPath $installer } } if ($tempPhar -ne '') { if (Test-Path -LiteralPath $tempPhar -PathType Leaf) { Remove-Item -LiteralPath $tempPhar } } } } end { } } |