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extract and cleanup stow class

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This commit is contained in:
Tim 2025-05-18 17:07:42 +02:00
parent ae1c5cc147
commit 15bd1c4031
2 changed files with 111 additions and 90 deletions
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92
php/bin/stow
View File

@ -3,95 +3,7 @@
require_once __DIR__ . '/../argvParser.php'; require_once __DIR__ . '/../argvParser.php';
require_once __DIR__ . '/../functions.php'; require_once __DIR__ . '/../functions.php';
require_once __DIR__ . '/../stow.php';
readonly class stow
{
public function __construct(
private string $action = 'stow',
private bool $backup = false,
private bool $force = false,
) {}
private function getNoStow(string $path): array
{
if (file_exists(path($path, '.nostow'))) {
$noStow = file_get_contents(path($path, '.nostow'));
if ($noStow === false) {
return [];
}
return array_values(array_filter(array_map('trim', explode(PHP_EOL, $noStow))));
} else {
return [];
}
}
function run(string $sourcePath, string $targetPath): void
{
$noStow = $this->getNoStow($sourcePath);
$sourceFiles = array_diff(scandir($sourcePath), ['..', '.', '.nostow', ...$noStow]);
foreach ($sourceFiles as $sourceFile) {
$targetFile = path($targetPath, $sourceFile);
$stowFile = path($sourcePath, $sourceFile);
if ($this->action === 'stow') {
if (is_link($targetFile)) {
$targetLink = readlink($targetFile);
if ($targetLink === $stowFile) {
line("File $targetFile is already stowed from $stowFile");
} else {
line("File $targetFile is linked from $targetLink");
}
continue;
}
if (is_dir($targetFile)) {
if (is_dir($stowFile)) {
line("File $targetFile and $stowFile are folders, recurse into existing folders");
$this->run($stowFile, $targetFile);
} else {
line("File $targetFile is a folder, but stow file $stowFile is not a folder");
}
continue;
}
if (is_file($targetFile)) {
if ($this->backup) {
$backFile = $targetFile . '.bak';
if (is_file($backFile)) {
line("Backup file $backFile already exists");
continue;
}
rename($targetFile, $backFile);
line("Backup file $targetFile to $backFile");
} elseif ($this->force) {
line("Todo: delete file $targetFile");
continue;
} else {
line("File $targetFile already exists");
continue;
}
}
line("Stow $targetFile from $stowFile");
symlink($stowFile, $targetFile);
} elseif ($this->action === 'unstow') {
if (is_link($targetFile) && readlink($targetFile) === $stowFile) {
line("Unstow $targetFile from $stowFile");
unlink($targetFile);
continue;
}
if (is_dir($targetFile)) {
if (is_dir($stowFile)) {
line("File $targetFile and $stowFile are folders, recurse into existing folders");
$this->run($stowFile, $targetFile);
continue;
} else {
line("File $targetFile is a folder, but stow file $stowFile is not a folder");
}
}
line("File $targetFile is not stowed from $stowFile");
}
}
}
}
$argvParser = new ArgvParser( $argvParser = new ArgvParser(
['u' => 'Unstow files', 'b' => 'Backup existing files', 'f' => 'Force overwrite'], ['u' => 'Unstow files', 'b' => 'Backup existing files', 'f' => 'Force overwrite'],
@ -104,7 +16,7 @@ if ($parsed === false) {
} }
$cwd = getcwd(); $cwd = getcwd();
$action = $parsed->get('u') ? 'unstow' : 'stow'; $action = $parsed->get('u') ? stow::ACTION_UNSTOW : stow::ACTION_STOW;
$backup = $parsed->get('b'); $backup = $parsed->get('b');
$force = $parsed->get('f'); $force = $parsed->get('f');

109
php/stow.php Normal file
View File

@ -0,0 +1,109 @@
<?php
readonly class stow
{
public const ACTION_STOW = 'stow';
public const ACTION_UNSTOW = 'unstow';
public function __construct(
private string $action = self::ACTION_STOW,
private bool $backup = false,
private bool $force = false,
) {}
private function getNoStow(string $path): array
{
if (file_exists(path($path, '.nostow'))) {
$noStow = file_get_contents(path($path, '.nostow'));
if ($noStow === false) {
return [];
}
return array_values(array_filter(array_map('trim', explode(PHP_EOL, $noStow))));
} else {
return [];
}
}
function run(string $sourcePath, string $targetPath): void
{
$noStow = $this->getNoStow($sourcePath);
$sourceFiles = array_diff(scandir($sourcePath), ['..', '.', '.nostow', ...$noStow]);
foreach ($sourceFiles as $sourceFile) {
$targetFile = path($targetPath, $sourceFile);
$stowFile = path($sourcePath, $sourceFile);
switch ($this->action) {
case self::ACTION_STOW:
$this->stow($targetFile, $stowFile);
break;
case self::ACTION_UNSTOW:
$this->unstow($targetFile, $stowFile);
break;
default:
line("Unknown action: {$this->action}");
return;
}
}
}
public function stow(string $targetFile, string $stowFile): void
{
if (is_link($targetFile)) {
$targetLink = readlink($targetFile);
if ($targetLink === $stowFile) {
line("File $targetFile is already stowed from $stowFile");
} else {
line("File $targetFile is linked from $targetLink");
}
return;
}
if (is_dir($targetFile)) {
if (is_dir($stowFile)) {
line("File $targetFile and $stowFile are folders, recurse into existing folders");
$this->run($stowFile, $targetFile);
} else {
line("File $targetFile is a folder, but stow file $stowFile is not a folder");
}
return;
}
if (is_file($targetFile)) {
if ($this->backup) {
$backFile = $targetFile . '.bak';
if (is_file($backFile)) {
line("Backup file $backFile already exists");
return;
}
rename($targetFile, $backFile);
line("Backup file $targetFile to $backFile");
} elseif ($this->force) {
line("Todo: delete file $targetFile");
return;
} else {
line("File $targetFile already exists");
return;
}
}
line("Stow $targetFile from $stowFile");
symlink($stowFile, $targetFile);
}
public function unstow(string $targetFile, string $stowFile): void
{
if (is_link($targetFile) && readlink($targetFile) === $stowFile) {
line("Unstow $targetFile from $stowFile");
unlink($targetFile);
return;
}
if (is_dir($targetFile)) {
if (is_dir($stowFile)) {
line("File $targetFile and $stowFile are folders, recurse into existing folders");
$this->run($stowFile, $targetFile);
return;
} else {
line("File $targetFile is a folder, but stow file $stowFile is not a folder");
}
}
line("File $targetFile is not stowed from $stowFile");
}
}