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install.ps1
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install.ps1
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. "$psscriptroot/autoupdate.ps1"
. "$psscriptroot/buckets.ps1"
function nightly_version($date, $quiet = $false) {
$date_str = $date.tostring("yyyyMMdd")
if (!$quiet) {
warn "This is a nightly version. Downloaded files won't be verified."
}
"nightly-$date_str"
}
function install_app($app, $architecture, $global, $suggested, $use_cache = $true, $check_hash = $true) {
$app, $bucket, $null = parse_app $app
$app, $manifest, $bucket, $url = locate $app $bucket
if(!$manifest) {
abort "Couldn't find manifest for '$app'$(if($url) { " at the URL $url" })."
}
$version = $manifest.version
if(!$version) { abort "Manifest doesn't specify a version." }
if($version -match '[^\w\.\-\+_]') {
abort "Manifest version has unsupported character '$($matches[0])'."
}
$is_nightly = $version -eq 'nightly'
if ($is_nightly) {
$version = nightly_version $(get-date)
$check_hash = $false
}
if(!(supports_architecture $manifest $architecture)) {
write-host -f DarkRed "'$app' doesn't support $architecture architecture!"
return
}
write-output "Installing '$app' ($version) [$architecture]"
$dir = ensure (versiondir $app $version $global)
$original_dir = $dir # keep reference to real (not linked) directory
$persist_dir = persistdir $app $global
$fname = dl_urls $app $version $manifest $bucket $architecture $dir $use_cache $check_hash
unpack_inno $fname $manifest $dir
pre_install $manifest $architecture
run_installer $fname $manifest $architecture $dir $global
ensure_install_dir_not_in_path $dir $global
$dir = link_current $dir
create_shims $manifest $dir $global $architecture
create_startmenu_shortcuts $manifest $dir $global $architecture
install_psmodule $manifest $dir $global
if($global) { ensure_scoop_in_path $global } # can assume local scoop is in path
env_add_path $manifest $dir $global
env_set $manifest $dir $global
# persist data
persist_data $manifest $original_dir $persist_dir
persist_permission $manifest $global
post_install $manifest $architecture
# save info for uninstall
save_installed_manifest $app $bucket $dir $url
save_install_info @{ 'architecture' = $architecture; 'url' = $url; 'bucket' = $bucket } $dir
if($manifest.suggest) {
$suggested[$app] = $manifest.suggest
}
success "'$app' ($version) was installed successfully!"
show_notes $manifest $dir $original_dir $persist_dir
}
function locate($app, $bucket) {
$manifest, $url = $null, $null
# check if app is a URL or UNC path
if($app -match '^(ht|f)tps?://|\\\\') {
$url = $app
$app = appname_from_url $url
$manifest = url_manifest $url
} else {
# check buckets
$manifest, $bucket = find_manifest $app $bucket
if(!$manifest) {
# couldn't find app in buckets: check if it's a local path
$path = $app
if(!$path.endswith('.json')) { $path += '.json' }
if(test-path $path) {
$url = "$(resolve-path $path)"
$app = appname_from_url $url
$manifest, $bucket = url_manifest $url
}
}
}
return $app, $manifest, $bucket, $url
}
function dl_with_cache($app, $version, $url, $to, $cookies = $null, $use_cache = $true) {
$cached = fullpath (cache_path $app $version $url)
if(!(test-path $cached) -or !$use_cache) {
$null = ensure $cachedir
do_dl $url "$cached.download" $cookies
Move-Item "$cached.download" $cached -force
} else { write-host "Loading $(url_remote_filename $url) from cache"}
if (!($null -eq $to)) {
Copy-Item $cached $to
}
}
function do_dl($url, $to, $cookies) {
$progress = [console]::isoutputredirected -eq $false -and
$host.name -ne 'Windows PowerShell ISE Host'
try {
$url = handle_special_urls $url
dl $url $to $cookies $progress
} catch {
$e = $_.exception
if($e.innerexception) { $e = $e.innerexception }
throw $e
}
}
function aria_exit_code($exitcode) {
$codes = @{
0='All downloads were successful'
1='An unknown error occurred'
2='Timeout'
3='Resource was not found'
4='Aria2 saw the specified number of "resource not found" error. See --max-file-not-found option'
5='Download aborted because download speed was too slow. See --lowest-speed-limit option'
6='Network problem occurred.'
7='There were unfinished downloads. This error is only reported if all finished downloads were successful and there were unfinished downloads in a queue when aria2 exited by pressing Ctrl-C by an user or sending TERM or INT signal'
8='Remote server did not support resume when resume was required to complete download'
9='There was not enough disk space available'
10='Piece length was different from one in .aria2 control file. See --allow-piece-length-change option'
11='Aria2 was downloading same file at that moment'
12='Aria2 was downloading same info hash torrent at that moment'
13='File already existed. See --allow-overwrite option'
14='Renaming file failed. See --auto-file-renaming option'
15='Aria2 could not open existing file'
16='Aria2 could not create new file or truncate existing file'
17='File I/O error occurred'
18='Aria2 could not create directory'
19='Name resolution failed'
20='Aria2 could not parse Metalink document'
21='FTP command failed'
22='HTTP response header was bad or unexpected'
23='Too many redirects occurred'
24='HTTP authorization failed'
25='Aria2 could not parse bencoded file (usually ".torrent" file)'
26='".torrent" file was corrupted or missing information that aria2 needed'
27='Magnet URI was bad'
28='Bad/unrecognized option was given or unexpected option argument was given'
29='The remote server was unable to handle the request due to a temporary overloading or maintenance'
30='Aria2 could not parse JSON-RPC request'
31='Reserved. Not used'
32='Checksum validation failed'
}
if($null -eq $codes[$exitcode]) {
return 'An unknown error occurred'
}
return $codes[$exitcode]
}
function get_filename_from_metalink($file) {
$bytes = get_magic_bytes_pretty $file ''
# check if file starts with '<?xml'
if(!($bytes.StartsWith('3c3f786d6c'))) {
return $null
}
# Add System.Xml for reading metalink files
Add-Type -AssemblyName 'System.Xml'
$xr = [System.Xml.XmlReader]::Create($file)
$filename = $null
try {
$xr.ReadStartElement('metalink')
if($xr.ReadToFollowing('file') -and $xr.MoveToFirstAttribute()) {
$filename = $xr.Value
}
} catch [System.Xml.XmlException] {
return $null
} finally {
$xr.Close()
}
return $filename
}
function dl_with_cache_aria2($app, $version, $manifest, $architecture, $dir, $cookies = $null, $use_cache = $true, $check_hash = $true) {
$data = @{}
$urls = @(url $manifest $architecture)
# aria2 input file
$urlstxt = "$cachedir\$app.txt"
$urlstxt_content = ''
$has_downloads = $false
# aria2 options
$options = @(
"--input-file='$urlstxt'"
"--user-agent='$(Get-UserAgent)'"
"--allow-overwrite=true"
"--auto-file-renaming=false"
"--retry-wait=$(get_config 'aria2-retry-wait' 2)"
"--split=$(get_config 'aria2-split' 5)"
"--max-connection-per-server=$(get_config 'aria2-max-connection-per-server' 5)"
"--min-split-size=$(get_config 'aria2-min-split-size' '5M')"
"--console-log-level=warn"
"--enable-color=false"
"--no-conf=true"
"--follow-metalink=true"
"--metalink-preferred-protocol=https"
"--min-tls-version=TLSv1.2"
"--stop-with-process=$PID"
"--continue"
)
if($cookies) {
$options += "--header='Cookie: $(cookie_header $cookies)'"
}
$proxy = get_config 'proxy'
if($proxy -ne 'none') {
if([Net.Webrequest]::DefaultWebProxy.Address) {
$options += "--all-proxy='$([Net.Webrequest]::DefaultWebProxy.Address.Authority)'"
}
if([Net.Webrequest]::DefaultWebProxy.Credentials.UserName) {
$options += "--all-proxy-user='$([Net.Webrequest]::DefaultWebProxy.Credentials.UserName)'"
}
if([Net.Webrequest]::DefaultWebProxy.Credentials.Password) {
$options += "--all-proxy-passwd='$([Net.Webrequest]::DefaultWebProxy.Credentials.Password)'"
}
}
$more_options = get_config 'aria2-options'
if($more_options) {
$options += $more_options
}
foreach($url in $urls) {
$data.$url = @{
'filename' = url_filename $url
'target' = "$dir\$(url_filename $url)"
'cachename' = fname (cache_path $app $version $url)
'source' = fullpath (cache_path $app $version $url)
}
if(!(test-path $data.$url.source)) {
$has_downloads = $true
# create aria2 input file content
$urlstxt_content += "$(handle_special_urls $url)`n"
if(!$url.Contains('sourceforge.net')) {
$urlstxt_content += " referer=$(strip_filename $url)`n"
}
$urlstxt_content += " dir=$cachedir`n"
$urlstxt_content += " out=$($data.$url.cachename)`n"
} else {
Write-Host "Loading " -NoNewline
Write-Host $(url_remote_filename $url) -f Cyan -NoNewline
Write-Host " from cache."
}
}
if($has_downloads) {
# write aria2 input file
Set-Content -Path $urlstxt $urlstxt_content
# build aria2 command
$aria2 = "& '$(aria2_path)' $($options -join ' ')"
# handle aria2 console output
Write-Host "Starting download with aria2 ..."
$prefix = "Download: "
Invoke-Expression $aria2 | ForEach-Object {
if([String]::IsNullOrWhiteSpace($_)) {
# skip blank lines
return
}
Write-Host $prefix -NoNewline
if($_.StartsWith('(OK):')) {
Write-Host $_ -f Green
} elseif($_.StartsWith('[') -and $_.EndsWith(']')) {
Write-Host $_ -f Cyan
} else {
Write-Host $_ -f Gray
}
}
if($lastexitcode -gt 0) {
error "Download failed! (Error $lastexitcode) $(aria_exit_code $lastexitcode)"
error $urlstxt_content
error $aria2
abort $(new_issue_msg $app $bucket "download via aria2 failed")
}
# remove aria2 input file when done
if(test-path($urlstxt)) {
Remove-Item $urlstxt
}
}
foreach($url in $urls) {
$metalink_filename = get_filename_from_metalink $data.$url.source
if($metalink_filename) {
Remove-Item $data.$url.source -Force
Rename-Item -Force (Join-Path -Path $cachedir -ChildPath $metalink_filename) $data.$url.source
}
# run hash checks
if($check_hash) {
$manifest_hash = hash_for_url $manifest $url $architecture
$ok, $err = check_hash $data.$url.source $manifest_hash $(show_app $app $bucket)
if(!$ok) {
error $err
if(test-path $data.$url.source) {
# rm cached file
Remove-Item -force $data.$url.source
}
if($url.Contains('sourceforge.net')) {
Write-Host -f yellow 'SourceForge.net is known for causing hash validation fails. Please try again before opening a ticket.'
}
abort $(new_issue_msg $app $bucket "hash check failed")
}
}
# copy or move file to target location
if(!(test-path $data.$url.source) ) {
abort $(new_issue_msg $app $bucket "cached file not found")
}
if($use_cache) {
Copy-Item $data.$url.source $data.$url.target
} else {
Move-Item $data.$url.source $data.$url.target -force
}
}
}
# download with filesize and progress indicator
function dl($url, $to, $cookies, $progress) {
$reqUrl = ($url -split "#")[0]
$wreq = [net.webrequest]::create($reqUrl)
if($wreq -is [net.httpwebrequest]) {
$wreq.useragent = Get-UserAgent
if (-not ($url -imatch "sourceforge\.net")) {
$wreq.referer = strip_filename $url
}
if($cookies) {
$wreq.headers.add('Cookie', (cookie_header $cookies))
}
}
$wres = $wreq.getresponse()
$total = $wres.ContentLength
if($total -eq -1 -and $wreq -is [net.ftpwebrequest]) {
$total = ftp_file_size($url)
}
if ($progress -and ($total -gt 0)) {
[console]::CursorVisible = $false
function dl_onProgress($read) {
dl_progress $read $total $url
}
} else {
write-host "Downloading $url ($(filesize $total))..."
function dl_onProgress {
#no op
}
}
try {
$s = $wres.getresponsestream()
$fs = [io.file]::openwrite($to)
$buffer = new-object byte[] 2048
$totalRead = 0
$sw = [diagnostics.stopwatch]::StartNew()
dl_onProgress $totalRead
while(($read = $s.read($buffer, 0, $buffer.length)) -gt 0) {
$fs.write($buffer, 0, $read)
$totalRead += $read
if ($sw.elapsedmilliseconds -gt 100) {
$sw.restart()
dl_onProgress $totalRead
}
}
$sw.stop()
dl_onProgress $totalRead
} finally {
if ($progress) {
[console]::CursorVisible = $true
write-host
}
if ($fs) {
$fs.close()
}
if ($s) {
$s.close();
}
$wres.close()
}
}
function dl_progress_output($url, $read, $total, $console) {
$filename = url_remote_filename $url
# calculate current percentage done
$p = [math]::Round($read / $total * 100, 0)
# pre-generate LHS and RHS of progress string
# so we know how much space we have
$left = "$filename ($(filesize $total))"
$right = [string]::Format("{0,3}%", $p)
# calculate remaining width for progress bar
$midwidth = $console.BufferSize.Width - ($left.Length + $right.Length + 8)
# calculate how many characters are completed
$completed = [math]::Abs([math]::Round(($p / 100) * $midwidth, 0) - 1)
# generate dashes to symbolise completed
if ($completed -gt 1) {
$dashes = [string]::Join("", ((1..$completed) | ForEach-Object {"="}))
}
# this is why we calculate $completed - 1 above
$dashes += switch($p) {
100 {"="}
default {">"}
}
# the remaining characters are filled with spaces
$spaces = switch($dashes.Length) {
$midwidth {[string]::Empty}
default {
[string]::Join("", ((1..($midwidth - $dashes.Length)) | ForEach-Object {" "}))
}
}
"$left [$dashes$spaces] $right"
}
function dl_progress($read, $total, $url) {
$console = $host.UI.RawUI;
$left = $console.CursorPosition.X;
$top = $console.CursorPosition.Y;
$width = $console.BufferSize.Width;
if($read -eq 0) {
$maxOutputLength = $(dl_progress_output $url 100 $total $console).length
if (($left + $maxOutputLength) -gt $width) {
# not enough room to print progress on this line
# print on new line
write-host
$left = 0
$top = $top + 1
}
}
write-host $(dl_progress_output $url $read $total $console) -nonewline
[console]::SetCursorPosition($left, $top)
}
function dl_urls($app, $version, $manifest, $bucket, $architecture, $dir, $use_cache = $true, $check_hash = $true) {
# we only want to show this warning once
if(!$use_cache) { warn "Cache is being ignored." }
# can be multiple urls: if there are, then msi or installer should go last,
# so that $fname is set properly
$urls = @(url $manifest $architecture)
# can be multiple cookies: they will be used for all HTTP requests.
$cookies = $manifest.cookie
$fname = $null
# extract_dir and extract_to in manifest are like queues: for each url that
# needs to be extracted, will get the next dir from the queue
$extract_dirs = @(extract_dir $manifest $architecture)
$extract_tos = @(extract_to $manifest $architecture)
$extracted = 0;
# download first
if(aria2_enabled) {
dl_with_cache_aria2 $app $version $manifest $architecture $dir $cookies $use_cache $check_hash
} else {
foreach($url in $urls) {
$fname = url_filename $url
try {
dl_with_cache $app $version $url "$dir\$fname" $cookies $use_cache
} catch {
write-host -f darkred $_
abort "URL $url is not valid"
}
if($check_hash) {
$manifest_hash = hash_for_url $manifest $url $architecture
$ok, $err = check_hash "$dir\$fname" $manifest_hash $(show_app $app $bucket)
if(!$ok) {
error $err
$cached = cache_path $app $version $url
if(test-path $cached) {
# rm cached file
Remove-Item -force $cached
}
if($url.Contains('sourceforge.net')) {
Write-Host -f yellow 'SourceForge.net is known for causing hash validation fails. Please try again before opening a ticket.'
}
abort $(new_issue_msg $app $bucket "hash check failed")
}
}
}
}
foreach($url in $urls) {
$fname = url_filename $url
$extract_dir = $extract_dirs[$extracted]
$extract_to = $extract_tos[$extracted]
# work out extraction method, if applicable
$extract_fn = $null
if($fname -match '\.zip$') {
$extract_fn = 'extract_zip'
} elseif($fname -match '\.msi$') {
# check manifest doesn't use deprecated install method
$msi = msi $manifest $architecture
if(!$msi) {
$useLessMsi = get_config MSIEXTRACT_USE_LESSMSI
if ($useLessMsi -eq $true) {
$extract_fn, $extract_dir = lessmsi_config $extract_dir
}
else {
$extract_fn = 'extract_msi'
}
} else {
warn "MSI install is deprecated. If you maintain this manifest, please refer to the manifest reference docs."
}
} elseif(file_requires_7zip $fname) { # 7zip
if(!(7zip_installed)) {
warn "Aborting. You'll need to run 'scoop uninstall $app' to clean up."
abort "7-zip is required. You can install it with 'scoop install 7zip'."
}
$extract_fn = 'extract_7zip'
}
if($extract_fn) {
Write-Host "Extracting " -NoNewline
Write-Host $fname -f Cyan -NoNewline
Write-Host " ... " -NoNewline
$null = mkdir "$dir\_tmp"
& $extract_fn "$dir\$fname" "$dir\_tmp"
Remove-Item "$dir\$fname"
if ($extract_to) {
$null = mkdir "$dir\$extract_to" -force
}
# fails if zip contains long paths (e.g. atom.json)
#cp "$dir\_tmp\$extract_dir\*" "$dir\$extract_to" -r -force -ea stop
try {
movedir "$dir\_tmp\$extract_dir" "$dir\$extract_to"
}
catch {
error $_
abort $(new_issue_msg $app $bucket "extract_dir error")
}
if(test-path "$dir\_tmp") { # might have been moved by movedir
try {
Remove-Item -r -force "$dir\_tmp" -ea stop
} catch [system.io.pathtoolongexception] {
& "$env:COMSPEC" /c "rmdir /s /q $dir\_tmp"
} catch [system.unauthorizedaccessexception] {
warn "Couldn't remove $dir\_tmp: unauthorized access."
}
}
Write-Host "done." -f Green
$extracted++
}
}
$fname # returns the last downloaded file
}
function cookie_header($cookies) {
if(!$cookies) { return }
$vals = $cookies.psobject.properties | ForEach-Object {
"$($_.name)=$($_.value)"
}
[string]::join(';', $vals)
}
function is_in_dir($dir, $check) {
$check = "$(fullpath $check)"
$dir = "$(fullpath $dir)"
$check -match "^$([regex]::escape("$dir"))(\\|`$)"
}
function ftp_file_size($url) {
$request = [net.ftpwebrequest]::create($url)
$request.method = [net.webrequestmethods+ftp]::getfilesize
$request.getresponse().contentlength
}
# hashes
function hash_for_url($manifest, $url, $arch) {
$hashes = @(hash $manifest $arch) | Where-Object { $_ -ne $null };
if($hashes.length -eq 0) { return $null }
$urls = @(url $manifest $arch)
$index = [array]::indexof($urls, $url)
if($index -eq -1) { abort "Couldn't find hash in manifest for '$url'." }
@($hashes)[$index]
}
# returns (ok, err)
function check_hash($file, $hash, $app_name) {
$file = fullpath $file
if(!$hash) {
warn "Warning: No hash in manifest. SHA256 for '$(fname $file)' is:`n $(compute_hash $file 'sha256')"
return $true, $null
}
Write-Host "Checking hash of " -NoNewline
Write-Host $(url_remote_filename $url) -f Cyan -NoNewline
Write-Host " ... " -nonewline
$algorithm, $expected = get_hash $hash
if ($null -eq $algorithm) {
return $false, "Hash type '$algorithm' isn't supported."
}
$actual = compute_hash $file $algorithm
$expected = $expected.ToLower()
if($actual -ne $expected) {
$msg = "Hash check failed!`n"
$msg += "App: $app_name`n"
$msg += "URL: $url`n"
if(Test-Path $file) {
$msg += "First bytes: $((get_magic_bytes_pretty $file ' ').ToUpper())`n"
}
if($expected -or $actual) {
$msg += "Expected: $expected`n"
$msg += "Actual: $actual"
}
return $false, $msg
}
Write-Host "ok." -f Green
return $true, $null
}
function compute_hash($file, $algname) {
try {
if([bool](Get-Command -Name Get-FileHash -ErrorAction SilentlyContinue) -eq $true) {
return (Get-FileHash -Path $file -Algorithm $algname).Hash.ToLower()
} else {
$fs = [system.io.file]::openread($file)
$alg = [system.security.cryptography.hashalgorithm]::create($algname)
$hexbytes = $alg.computehash($fs) | ForEach-Object { $_.tostring('x2') }
return [string]::join('', $hexbytes)
}
} catch {
error $_.exception.message
} finally {
if($fs) { $fs.dispose() }
if($alg) { $alg.dispose() }
}
return ''
}
function cmd_available($cmd) {
try { Get-Command $cmd -ea stop | out-null } catch { return $false }
$true
}
# for dealing with installers
function args($config, $dir, $global) {
if($config) { return $config | ForEach-Object { (format $_ @{'dir'=$dir;'global'=$global}) } }
@()
}
function run($exe, $arg, $msg, $continue_exit_codes) {
if($msg) { write-host "$msg " -nonewline }
try {
#Allow null/no arguments to be passed
$parameters = @{ }
if ($arg)
{
$parameters.arg = $arg;
}
$proc = start-process $exe -wait -ea stop -passthru @parameters
if($proc.exitcode -ne 0) {
if($continue_exit_codes -and ($continue_exit_codes.containskey($proc.exitcode))) {
warn $continue_exit_codes[$proc.exitcode]
return $true
}
write-host "Exit code was $($proc.exitcode)."; return $false
}
} catch {
write-host -f darkred $_.exception.tostring()
return $false
}
if($msg) { Write-Host "done." -f Green }
return $true
}
function run_installer($fname, $manifest, $architecture, $dir, $global) {
# MSI or other installer
$msi = msi $manifest $architecture
$installer = installer $manifest $architecture
if($installer.script) {
write-output "Running installer script..."
Invoke-Expression (@($installer.script) -join "`r`n")
return
}
if($msi) {
install_msi $fname $dir $msi
} elseif($installer) {
install_prog $fname $dir $installer $global
}
}
# deprecated (see also msi_installed)
function install_msi($fname, $dir, $msi) {
$msifile = "$dir\$(coalesce $msi.file "$fname")"
if(!(is_in_dir $dir $msifile)) {
abort "Error in manifest: MSI file $msifile is outside the app directory."
}
if(!($msi.code)) { abort "Error in manifest: Couldn't find MSI code."}
if(msi_installed $msi.code) { abort "The MSI package is already installed on this system." }
$logfile = "$dir\install.log"
$arg = @("/i `"$msifile`"", '/norestart', "/lvp `"$logfile`"", "TARGETDIR=`"$dir`"",
"INSTALLDIR=`"$dir`"") + @(args $msi.args $dir)
if($msi.silent) { $arg += '/qn', 'ALLUSERS=2', 'MSIINSTALLPERUSER=1' }
else { $arg += '/qb-!' }
$continue_exit_codes = @{ 3010 = "a restart is required to complete installation" }
$installed = run 'msiexec' $arg "Running installer..." $continue_exit_codes
if(!$installed) {
abort "Installation aborted. You might need to run 'scoop uninstall $app' before trying again."
}
Remove-Item $logfile
Remove-Item $msifile
}
# deprecated
# get-wmiobject win32_product is slow and checks integrity of each installed program,
# so this uses the [wmi] type accelerator instead
# http://blogs.technet.com/b/heyscriptingguy/archive/2011/12/14/use-powershell-to-find-and-uninstall-software.aspx
function msi_installed($code) {
$path = "hklm:\software\microsoft\windows\currentversion\uninstall\$code"
if(!(test-path $path)) { return $false }
$key = Get-Item $path
$name = $key.getvalue('displayname')
$version = $key.getvalue('displayversion')
$classkey = "IdentifyingNumber=`"$code`",Name=`"$name`",Version=`"$version`""
try { $wmi = [wmi]"Win32_Product.$classkey"; $true } catch { $false }
}
function install_prog($fname, $dir, $installer, $global) {
$prog = "$dir\$(coalesce $installer.file "$fname")"
if(!(is_in_dir $dir $prog)) {
abort "Error in manifest: Installer $prog is outside the app directory."
}
$arg = @(args $installer.args $dir $global)
if($prog.endswith('.ps1')) {
& $prog @arg
} else {
$installed = run $prog $arg "Running installer..."
if(!$installed) {
abort "Installation aborted. You might need to run 'scoop uninstall $app' before trying again."
}
# Don't remove installer if "keep" flag is set to true
if(!($installer.keep -eq "true")) {
Remove-Item $prog
}
}
}
function run_uninstaller($manifest, $architecture, $dir) {
$msi = msi $manifest $architecture
$uninstaller = uninstaller $manifest $architecture
if($uninstaller.script) {
write-output "Running uninstaller script..."
Invoke-Expression (@($uninstaller.script) -join "`r`n")
return
}
if($msi -or $uninstaller) {
$exe = $null; $arg = $null; $continue_exit_codes = @{}
if($msi) {
$code = $msi.code
$exe = "msiexec";
$arg = @("/norestart", "/x $code")
if($msi.silent) {
$arg += '/qn', 'ALLUSERS=2', 'MSIINSTALLPERUSER=1'
} else {
$arg += '/qb-!'
}
$continue_exit_codes.1605 = 'not installed, skipping'
$continue_exit_codes.3010 = 'restart required'
} elseif($uninstaller) {
$exe = "$dir\$($uninstaller.file)"
$arg = args $uninstaller.args
if(!(is_in_dir $dir $exe)) {
warn "Error in manifest: Installer $exe is outside the app directory, skipping."
$exe = $null;
} elseif(!(test-path $exe)) {
warn "Uninstaller $exe is missing, skipping."
$exe = $null;
}
}
if($exe) {
if($exe.endswith('.ps1')) {
& $exe @arg
} else {
$uninstalled = run $exe $arg "Running uninstaller..." $continue_exit_codes
if(!$uninstalled) { abort "Uninstallation aborted." }
}
}
}
}
# get target, name, arguments for shim
function shim_def($item) {
if($item -is [array]) { return $item }
return $item, (strip_ext (fname $item)), $null
}
function create_shims($manifest, $dir, $global, $arch) {
$shims = @(arch_specific 'bin' $manifest $arch)
$shims | Where-Object { $_ -ne $null } | ForEach-Object {
$target, $name, $arg = shim_def $_
write-output "Creating shim for '$name'."
if(test-path "$dir\$target" -pathType leaf) {
$bin = "$dir\$target"
} elseif(test-path $target -pathType leaf) {
$bin = $target
} else {
$bin = search_in_path $target
}
if(!$bin) { abort "Can't shim '$target': File doesn't exist."}
shim $bin $global $name (substitute $arg @{ '$dir' = $dir; '$original_dir' = $original_dir; '$persist_dir' = $persist_dir})
}
}
function rm_shim($name, $shimdir) {
$shim = "$shimdir\$name.ps1"
if(!(test-path $shim)) { # handle no shim from failed install
warn "Shim for '$name' is missing. Skipping."
} else {
write-output "Removing shim for '$name'."
Remove-Item $shim
}
# other shim types might be present
'', '.exe', '.shim', '.cmd' | ForEach-Object {
if(test-path -Path "$shimdir\$name$_" -PathType leaf) {
Remove-Item "$shimdir\$name$_"
}
}
}
function rm_shims($manifest, $global, $arch) {
$shims = @(arch_specific 'bin' $manifest $arch)
$shims | Where-Object { $_ -ne $null } | ForEach-Object {
$target, $name, $null = shim_def $_
$shimdir = shimdir $global
rm_shim $name $shimdir
}
}
# Gets the path for the 'current' directory junction for
# the specified version directory.
function current_dir($versiondir) {
$parent = split-path $versiondir
return "$parent\current"
}
# Creates or updates the directory junction for [app]/current,
# pointing to the specified version directory for the app.
#
# Returns the 'current' junction directory if in use, otherwise
# the version directory.
function link_current($versiondir) {
if(get_config NO_JUNCTIONS) { return $versiondir }
$currentdir = current_dir $versiondir
write-host "Linking $(friendly_path $currentdir) => $(friendly_path $versiondir)"
if($currentdir -eq $versiondir) {
abort "Error: Version 'current' is not allowed!"
}
if(test-path $currentdir) {
# remove the junction
attrib -R /L $currentdir
& "$env:COMSPEC" /c rmdir $currentdir
}
& "$env:COMSPEC" /c mklink /j $currentdir $versiondir | out-null
attrib $currentdir +R /L
return $currentdir
}
# Removes the directory junction for [app]/current which
# points to the current version directory for the app.
#
# Returns the 'current' junction directory (if it exists),
# otherwise the normal version directory.
function unlink_current($versiondir) {
if(get_config NO_JUNCTIONS) { return $versiondir }
$currentdir = current_dir $versiondir
if(test-path $currentdir) {
write-host "Unlinking $(friendly_path $currentdir)"
# remove read-only attribute on link
attrib $currentdir -R /L
# remove the junction
& "$env:COMSPEC" /c "rmdir $currentdir"
return $currentdir
}
return $versiondir
}
# to undo after installers add to path so that scoop manifest can keep track of this instead
function ensure_install_dir_not_in_path($dir, $global) {
$path = (env 'path' $global)
$fixed, $removed = find_dir_or_subdir $path "$dir"
if($removed) {
$removed | ForEach-Object { "Installer added '$(friendly_path $_)' to path. Removing."}
env 'path' $global $fixed
}
if(!$global) {
$fixed, $removed = find_dir_or_subdir (env 'path' $true) "$dir"
if($removed) {
$removed | ForEach-Object { warn "Installer added '$_' to system path. You might want to remove this manually (requires admin permission)."}
}
}
}
function find_dir_or_subdir($path, $dir) {
$dir = $dir.trimend('\')
$fixed = @()
$removed = @()
$path.split(';') | ForEach-Object {
if($_) {
if(($_ -eq $dir) -or ($_ -like "$dir\*")) { $removed += $_ }
else { $fixed += $_ }
}
}
return [string]::join(';', $fixed), $removed
}
function env_add_path($manifest, $dir, $global) {
$manifest.env_add_path | Where-Object { $_ } | ForEach-Object {
$path_dir = join-path $dir $_
if(!(is_in_dir $dir $path_dir)) {
abort "Error in manifest: env_add_path '$_' is outside the app directory."
}